Rockchip U-Boot Nextdev: загрузка, драйверы, SPL/TPL, FIT и проверка безопасности

#
## Chapter-1 SPDX-License-Identifier:      GPL-2.0+
#

VERSION = 2017
PATCHLEVEL = 09
SUBLEVEL =
EXTRAVERSION =
NAME =
......

U-Boot 2017.09-01818-g11818ff-dirty (Nov 14 2019 - 11:11:47 +0800)
......

./doc/driver-model/README.txt
Terminology
-----------

Uclass - a group of devices which operate in the same way. A uclass provides
         a way of accessing individual devices within the group, but always
         using the same interface. For example a GPIO uclass provides
         operations for get/set value. An I2C uclass may have 10 I2C ports,
         4 with one driver, and 6 with another.

Driver - some code which talks to a peripheral and presents a higher-level
         interface to it.

Device - an instance of a driver, tied to a particular port or peripheral.

./drivers/core/

32位平台： Non-Secure PL1
64位平台： EL2(Always be Non-Secure)

// 前级loader闭源
BOOTROM => ddr bin => Miniloader => TRUST => U-BOOT => KERNEL
// 前级loader开源
BOOTROM => TPL => SPL => TRUST => U-BOOT => KERNEL

int uclass_get_device(enum uclass_id id, int index, struct udevice **devp);
int uclass_get_device_by_name(enum uclass_id id, const char *name,
                              struct udevice **devp);
int uclass_get_device_by_seq(enum uclass_id id, int seq, struct udevice **devp);
int uclass_get_device_by_of_offset(enum uclass_id id, int node, struct udevice **devp);
int uclass_get_device_by_ofnode(enum uclass_id id, ofnode node, struct udevice **devp);
int uclass_get_device_by_phandle_id(enum uclass_id id,
                                    int phandle_id, struct udevice **devp);
int uclass_get_device_by_phandle(enum uclass_id id,
                                 struct udevice *parent, struct udevice **devp);
int uclass_get_device_by_driver(enum uclass_id id,
                                const struct driver *drv, struct udevice **devp);
int uclass_get_device_tail(struct udevice *dev, int ret, struct udevice **devp);
......

int device_probe(struct udevice *dev);  // 建议⽤⼾⼀定要了解内部实现！

int run_command(const char *cmd, int flag)
int run_command_list(const char *cmd, int len, int flag)

BOOTROM => TPL(ddr bin) => SPL(miniloader) => TRUST => U-BOOT => KERNEL

// U-Boot阶段
./u-boot.map            // MAP表⽂件
./u-boot.sym            // SYMBOL表⽂件
./u-boot                // ELF⽂件，类同内核的vmlinux（重要！）
./u-boot.dtb            // u-boot⾃⼰的dtb⽂件
./u-boot.bin            // 可执⾏⼆进制⽂件，会被打包成uboot.img⽤于烧写

// SPL阶段
./spl/u-boot-spl.map    // MAP表⽂件
./spl/u-boot-spl.sym    // SYMBOL表⽂件
./spl/u-boot-spl        // ELF⽂件，类同内核的vmlinux（重要！）
./spl/u-boot-spl.dtb    // spl⾃⼰的dtb⽂件
./spl/u-boot-spl.bin    // 可执⾏⼆进制⽂件，会被打包成loader⽤于烧写

// TPL阶段
./tpl/u-boot-tpl.map    // MAP表⽂件
./tpl/u-boot-tpl.sym    // SYMBOL表⽂件
./tpl/u-boot-tpl        // ELF⽂件，类同内核的vmlinux（重要！）
./tpl/u-boot-tpl.dtb    // tpl⾃⼰的dtb⽂件
./tpl/u-boot-tpl.bin    // 可执⾏⼆进制⽂件，会被打包成loader⽤于烧写

if ARCH_ROCKCHIP
config ENV_OFFSET
        hex
        depends on !ENV_IS_IN_UBI
        depends on !ENV_IS_NOWHERE
        default 0x3f8000
        help
          Offset from the start of the device (or partition)

config ENV_SIZE
        hex
        default 0x8000
        help
          Size of the environment storage area
endif

arch/arm/dts/

U-Boot 2017.09-gabfd1c5e3d-210202-dirty #cjh (Mar 08 2021 - 16:57:31 +0800)

Model: Rockchip RK3568 Evaluation Board
PreSerial: 2, raw, 0xfe660000
DRAM:  2 GiB
Sysmem: init
// relocate到ddr⾸地址偏移0x7d304000的地址。如果为0，则没有做relocation。
Relocation Offset: 7d304000, fdt: 7b9f8ed8
Using default environment
......

./arch/arm/include/asm/arch-rockchip/
./arch/arm/mach-rockchip/
./board/rockchip/
./include/configs/

./configs/

./arch/arm/mach-rockchip/board.c

// 各平台公共⽂件（开发者通常不需要修改）
./arch/arm/mach-rockchip/Kconfig
./include/configs/rockchip-common.h

// 各平台独有，以RK3399为例
./include/configs/rk3399_common.h
./include/configs/evb_rk3399.h
./configs/rk3399_defconfig

......
#define RKIMG_DET_BOOTDEV \                           // 动态探测当前的存储类型
    "rkimg_bootdev=" \
    "if mmc dev 1 && rkimgtest mmc 1; then " \
        "setenv devtype mmc; setenv devnum 1; echo Boot from SDcard;" \
    "elif mmc dev 0; then " \
        "setenv devtype mmc; setenv devnum 0;" \
    "elif rknand dev 0; then " \
        "setenv devtype rknand; setenv devnum 0;" \
        "elif rksfc dev 0; then " \
                "setenv devtype rksfc; setenv devnum 0;" \
    "fi; \0"

#define RKIMG_BOOTCOMMAND \
    "boot_android ${devtype} ${devnum};" \           // 启动android格式固件
    "bootrkp;" \                                     // 启动RK格式固件
    "run distro_bootcmd;"                            // 启动linux固件
......

......
#ifndef CONFIG_SPL_BUILD
#define ENV_MEM_LAYOUT_SETTINGS \        // 固件的加载地址
    "scriptaddr=0x00500000\0" \
    "pxefile_addr_r=0x00600000\0" \
    "fdt_addr_r=0x01f00000\0" \
    "kernel_addr_r=0x02080000\0" \
    "ramdisk_addr_r=0x0a200000\0"

#include <config_distro_bootcmd.h>
#define CONFIG_EXTRA_ENV_SETTINGS \
    ENV_MEM_LAYOUT_SETTINGS \
    "partitions=" PARTS_DEFAULT \        // 默认的GPT分区表
    ROCKCHIP_DEVICE_SETTINGS \
    RKIMG_DET_BOOTDEV \
    BOOTENV                              // 启动linux时的启动设备探测命令
#endif

#define CONFIG_PREBOOT                   // 在CONFIG_BOOTCOMMAND之前被执⾏的预启动命令
......

......
#ifndef CONFIG_SPL_BUILD
#undef CONFIG_BOOTCOMMAND
#define CONFIG_BOOTCOMMAND RKIMG_BOOTCOMMAND // 定义启动命令（设置为RKIMG_BOOTCOMMAND）
#endif
......
#define ROCKCHIP_DEVICE_SETTINGS \           // 使能显⽰模块
        "stdout=serial,vidconsole\0" \
        "stderr=serial,vidconsole\0"
......

start.s
    // 汇编环境
    => IRQ/FIQ/lowlevel/vbar/errata/cp15/gic   // ARM架构相关的lowlevel初始化
    => _main
        => stack                               // 准备好C环境需要的栈
        // 【第⼀阶段】C环境初始化，发起⼀系列的函数调⽤
        => board_init_f: init_sequence_f[]
            initf_malloc
            arch_cpu_init                      // 【SoC的lowlevel初始化】
            serial_init                        // 串⼝初始化
            dram_init                          // 【获取ddr容量信息】
            reserve_mmu                        // 从ddr末尾开始往低地址reserve内存
    reserve_video
    reserve_uboot
    reserve_malloc
    reserve_global_data
    reserve_fdt
    reserve_stacks
    dram_init_banksize
    sysmem_init
    setup_reloc                        // 确定U-Boot⾃⾝要reloc的地址
// 汇编环境
=> relocate_code                       // 汇编实现U-Boot代码的relocation
// 【第⼆阶段】C环境初始化，发起⼀系列的函数调⽤
=> board_init_r: init_sequence_r[]
    initr_caches                       // 使能MMU和I/Dcache
    initr_malloc
    bidram_initr
    sysmem_initr
    initr_of_live                      // 初始化of_live
    initr_dm                           // 初始化dm框架
    board_init                         // 【平台初始化，最核⼼部分】
        board_debug_uart_init          // 串⼝iomux、clk配置
        init_kernel_dtb                // 【切到kernel dtb】！
        clks_probe                     // 初始化系统频率
        regulators_enable_boot_on      // 初始化系统电源
        io_domain_init                 // io-domain初始化
        set_armclk_rate                // __weak，ARM提频(平台有需求才实现)
        dvfs_init                      // 宽温芯⽚的调频调压
        rk_board_init                  // __weak，由各个具体平台进⾏实现
    console_init_r
    board_late_init                    // 【平台late初始化】
        rockchip_set_ethaddr           // 设置mac地址
        rockchip_set_serialno          // 设置serialno
        setup_boot_mode                // 解析"reboot xxx"命令、
                                       // 识别按键和loader烧写模式、recovery
        charge_display                 // U-Boot充电
        rockchip_show_logo             // 显⽰开机logo
        soc_clk_dump                   // 打印clk tree
        rk_board_late_init             // __weak，由各个具体平台进⾏实现
    run_main_loop                      // 【进⼊命令⾏模式，或执⾏启动命令】

mmc1：表⽰sd
mmc0：表⽰emmc

BOOTROM => ddr-bin => Miniloader => TRUST => U-BOOT => KERNEL

./arch/arm/include/asm/arch-rockchip/rk_atags.h
./arch/arm/mach-rockchip/rk_atags.c

low-addr                                                                    high-addr
|-----------------------------------------------------------|-----------------|
|             no management                                 | system used     |
|-----------------------------------------------------------|-----------------|
0x0                                                                          N GB

./lib/sysmem.c
./lib/bidram.c
./include/memblk.h
./arch/arm/mach-rockchip/memblk.c

bidram_dump_all:
    --------------------------------------------------------------------
    // <1> 这⾥显⽰了U-Boot从前级loader获取的ddr的总容量信息，⼀共有2GB
    memory.rgn[0].addr     = 0x00000000 - 0x80000000 (size: 0x80000000)

    memory.total           = 0x80000000 (2048 MiB. 0 KiB)
    --------------------------------------------------------------------
    // <2> 这⾥显⽰了被预留起来的各固件内存信息，这些空间对kernel不可⻅
    reserved.rgn[0].name   = "ATF"
                   .addr   = 0x00000000 - 0x00100000 (size: 0x00100000)
    reserved.rgn[1].name   = "SHM"
                   .addr   = 0x00100000 - 0x00200000 (size: 0x00100000)
    reserved.rgn[2].name   = "OP-TEE"
                   .addr   = 0x08400000 - 0x0a200000 (size: 0x01e00000)
reserved.total         = 0x02000000 (32 MiB. 0 KiB)
--------------------------------------------------------------------
// <3> 这⾥是核⼼算法对上述<2>进⾏的预留信息整理，例如：会对相邻块进⾏合并
LMB.reserved[0].addr   = 0x00000000 - 0x00200000 (size: 0x00200000)
LMB.reserved[1].addr   = 0x08400000 - 0x0a200000 (size: 0x01e00000)

reserved.core.total    = 0x02000000 (32 MiB. 0 KiB)
--------------------------------------------------------------------

sysmem_dump_all:
    --------------------------------------------------------------------
    // <1> 这⾥是sysmem可管理的总内存容量，即bidram<3>之外的可⽤ddr容量，对kernel可⻅。
    memory.rgn[0].addr     = 0x00200000 - 0x08400000 (size: 0x08200000)
    memory.rgn[1].addr     = 0x0a200000 - 0x80000000 (size: 0x75e00000)

    memory.total           = 0x7e000000 (2016 MiB. 0 KiB)
    --------------------------------------------------------------------
    // <2> 这⾥显⽰了各个固件alloc⾛的内存块信息
    allocated.rgn[0].name  = "U-Boot"
                    .addr  = 0x71dd6140 - 0x80000000 (size: 0x0e229ec0)
    allocated.rgn[1].name  = "STACK"      <Overflow!> // 表明栈溢出
                    .addr  = 0x71bd6140 - 0x71dd6140 (size: 0x00200000)
    allocated.rgn[2].name  = "FDT"
                    .addr  = 0x08300000 - 0x08316204 (size: 0x00016204)
    allocated.rgn[3].name  = "KERNEL"     <Overflow!> // 表明内存块溢出
                    .addr  = 0x00280000 - 0x014ce204 (size: 0x0124e204)
    allocated.rgn[4].name  = "RAMDISK"
                    .addr  = 0x0a200000 - 0x0a3e6804 (size: 0x001e6804)
    // <3> malloc_r/f的⼤⼩
    malloc_r: 192 MiB, malloc_f: 16 KiB

    allocated.total        = 0x0f874acc (248 MiB. 466 KiB)
    --------------------------------------------------------------------
    // <4> 这⾥是核⼼算法对上述<2>进⾏的信息整理，显⽰被占⽤⾛的内存块信息
    LMB.reserved[0].addr   = 0x00280000 - 0x014ce204 (size: 0x0124e204)
    LMB.reserved[1].addr   = 0x08300000 - 0x08316204 (size: 0x00016204)
    LMB.reserved[2].addr   = 0x0a200000 - 0x0a3e6804 (size: 0x001e6804)
    LMB.reserved[3].addr   = 0x71bd6140 - 0x80000000 (size: 0x0e429ec0)

    reserved.core.total    = 0x0f874acc (248 MiB. 466 KiB)
    --------------------------------------------------------------------

// 期望申请的内存已经被其他固件占⽤了，存在内存重叠。这说明当前系统的内存块使⽤规划不合理
Sysmem Error: "KERNEL" (0x00200000 - 0x02200000) alloc is overlap with existence "RAMDISK"
(0x00100000 - 0x01200000)

// 期望申请的内存因为⼀些特殊原因⽆法申请到（分析sysmem和bidram信息）
Sysmem Error: Failed to alloc "KERNEL" expect at 0x00200000 - 0x02200000 but at 0x00400000 -
0x0420000

// sysmem管理的空间起始地址为0x200000，所以根本申请不到0x100000起始的空间
Sysmem Error: Failed to alloc "KERNEL" at 0x00100000 - 0x02200000

// 重复申请"RAMDISK"内存块
Sysmem Error: Failed to double alloc for existence "RAMDISK"

83c9bd4 board: rockchip: pass fuse programmed state to kernel

CONFIG_LZ4=y

#define ENV_MEM_LAYOUT_SETTINGS \
    "scriptaddr=0x00500000\0" \
    "pxefile_addr_r=0x00600000\0" \
    "fdt_addr_r=0x01f00000\0" \
    "kernel_addr_no_bl32_r=0x00280000\0" \
    "kernel_addr_r=0x00680000\0" \        // LZ4解压内核的地址
    "kernel_addr_c=0x02480000\0" \        // LZ4压缩内核的地址
    "ramdisk_addr_r=0x04000000\0"

CONFIG_SKIP_RELOCATE_UBOOT

#define ENV_MEM_LAYOUT_SETTINGS \
    "scriptaddr=0x60000000\0" \
    "pxefile_addr_r=0x60100000\0" \
    "fdt_addr_r=0x68300000\0" \
    "kernel_addr_r=0x62008000\0" \       // zImage压缩内核的地址
    "ramdisk_addr_r=0x6a200000\0"

00000000   4B 52 4E 4C  42 97 0F 00  1F 8B 08 00  00 00 00 00  KRNL..y.........
00000010   00 03 A4 BC  0B 78 53 55  D6 37 BE 4F  4E D2 A4 69  .....xSU.7.ON..i

00000000   41 4E 44 52  4F 49 44 21  24 10 74 00  00 80 40 60  ANDROID!$.t...@`
00000010   F9 31 CD 00  00 00 00 62  00 00 00 00  00 00 F0 60  .1.....b.......`

./doc/README.distro
./include/config_distro_defaults.h
./include/config_distro_bootcmd.h

#define RKIMG_BOOTCOMMAND \
    "boot_android ${devtype} ${devnum};" \
    "bootrkp;" \
    "run distro_bootcmd;"

00000000  4c 4f 41 44 45 52 20 20  00 00 00 00 00 00 00 00  |LOADER  ........|
00000010  00 00 20 00 78 d0 0f 00  06 99 c2 a8 20 00 00 00  |.. .x....... ...|
00000020  09 8a b0 e1 89 7a c2 89  0d e8 da ef 86 3e f2 24  |.....z.......>.$|

00000000  42 4c 33 58 00 01 00 00  23 00 00 00 f8 00 04 00  |BL3X....#.......|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

00000000  d0 0d fe ed 00 00 06 00  00 00 00 58 00 00 04 c4  |...........X....|
00000010  00 00 00 28 00 00 00 11  00 00 00 10 00 00 00 00  |...(............|

./arch/arm/dts/

fdtdump ./u-boot.dtb | less

// Icache接⼝：
void icache_enable (void);
void icache_disable (void);
void invalidate_icache_all(void);

// Dcache接⼝：
void dcache_disable (void);
void dcache_enable(void);
void flush_dcache_range(unsigned long start, unsigned long stop);
void flush_cache(unsigned long start, unsigned long size)；
void flush_dcache_all(void);
void invalidate_dcache_range(unsigned long start, unsigned long stop);
void invalidate_dcache_all(void);
// 重新映射某块内存区间的Dcache属性
void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
                                     enum dcache_option option)

// 帮助命令
./make.sh --help

// 打包固件的功能
./make.sh trust              // 打包trust
./make.sh loader             // 打包loader
./make.sh trust <ini-file>   // 打包trust时指定ini⽂件
./make.sh loader <ini-file>  // 打包loader时指定ini⽂件
./make.sh spl                // ⽤tpl+spl替换ddr和miniloader，打包成loader
./make.sh spl-s              // ⽤spl替换miniloader，打包成loader
./make.sh itb                // 打包u-boot.itb（64位平台只⽀持打包ATF和U-Boot，OP-TEE不打包）
./make.sh env                // ⽣成fw_printenv⼯具

// 反汇编的功能
./make.sh elf-[x] [type]     // 反汇编：使⽤-[x]参数, [type]可选择是否反汇编SPL或TPL
./make.sh elf                // 反汇编u-boot⽂件，默认使⽤-D参数
./make.sh elf-S              // 反汇编u-boot⽂件，使⽤-S参数
./make.sh elf-d              // 反汇编u-boot⽂件，使⽤-d参数
./make.sh elf spl            // 反汇编tpl/u-boot-tpl⽂件，默认使⽤-D参数
./make.sh elf tpl            // 反汇编spl/u-boot-tpl⽂件，默认使⽤-D参数
./make.sh <addr>             // 需要addr对应的函数名和代码位置
./make.sh map                // 打开u-boot.map
./make.sh sym                // 打开u-boot.sym

FIRMWARE_VER:8.1
MACHINE_MODEL:RK3399
MACHINE_ID:007
MANUFACTURER: RK3399
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: 3399
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT               // 当前是GPT格式的分区表，否则为RK paramter
CMDLINE:mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(trust),0
x00002000@0x00008000(misc),0x00008000@0x0000a000(resource),0x00010000@0x00012000(kernel
),0x00010000@0x00022000(boot),0x00020000@0x00032000(recovery),0x00038000@0x00052000(bac
kup),0x00002000@0x0008a000(security),0x00100000@0x0008c000(cache),0x00500000@0x0018c000
(system),0x00008000@0x0068c000(metadata),0x00100000@0x00694000(vendor),0x00100000@0x007
96000(oem),0x00000400@0x00896000(frp),-@0x00896400(userdata:grow)

"Synchronous Abort" handler, esr 0x96000010

// abort的原因、pc、lr、sp
* Reason:        Exception from a Data abort, from current exception level
* PC         =   000000000028f430
* LR         =   00000000002608d0
* SP         =   00000000f3dceb30

...

// 重点突出PC和LR
Call trace:
  PC:   [< 0028f430 >]
  LR:   [< 002608d0 >]

// 函数调⽤关系
Stack:
        [< 0028f430 >]
        [< 0028da24 >]
        [< 00211600 >]
        [< 002117b0 >]
        [< 00202910 >]
        [< 00202aa8 >]
        [< 0027698c >]
        [< 002151ec >]
        [< 00201b2c >]

// 指导⽤⼾转换上述调⽤栈信息
Copy info from "Call trace..." to a file(eg. dump.txt), and run
command in your U-Boot project: ./scripts/stacktrace.sh dump.txt

cjh@Ubuntu:~/u-boot$ ./scripts/stacktrace.sh dump.txt

// 符号表来源
SYMBOL File: ./u-boot.sym

// 重点列出PC和LR对应的代码位置
Call trace:
 PC:   [< 0028f430 >]  strncpy+0xc/0x20      ./lib/string.c:98
 LR:   [< 002608d0 >]  on_serialno+0x10/0x1c ./drivers/usb/gadget/g_dnl.c:217

// 转换后得到真实函数名
Stack:
       [< 0028f430 >]  strncpy+0xc/0x20
       [< 0028da24 >]  hdelete_r+0xcc/0xf0
       [< 00211600 >]  _do_env_set.isra.0+0x70/0x1b8
       [< 002117b0 >]  env_set+0x3c/0x58
       [< 00202910 >]  rockchip_set_serialno+0x54/0x140
       [< 00202aa8 >]  board_late_init+0x5c/0xa0
       [< 0027698c >]  initcall_run_list+0x58/0x94
       [< 002151ec >]  board_init_r+0x20/0x24
[< 00201b2c >]  relocation_return+0x4/0x0

./scripts/stacktrace.sh ./dump.txt        // 解析来⾃U-Boot的调⽤栈信息
./scripts/stacktrace.sh ./dump.txt tpl    // 解析来⾃tpl的调⽤栈信息
./scripts/stacktrace.sh ./dump.txt spl    // 解析来⾃spl的调⽤栈信息

### Booting Android Image at 0x02007800 ...
Kernel load addr 0x02008000 size 8062 KiB
### Flattened Device Tree blob at 08300000
   Booting using the fdt blob at 0x8300000
   XIP Kernel Image ... OK
  'reserved-memory' dma-unusable@fe000000: addr=fe000000 size=1000000
  'reserved-memory' ramoops@00000000: addr=8000000 size=f0000
   Using Device Tree in place at 08300000, end 08316ed1
Adding bank: 0x00000000 - 0x08400000 (size: 0x08400000)
Adding bank: 0x09200000 - 0x80000000 (size: 0x76e00000)
Total: 812.613 ms    // U-Boot阶段的总耗时

Starting kernel ...

U-Boot 2017.09-00019-g9b55ed0-dirty (Dec 26 2019 - 14:45:33 +0800)

                                         #    5212 us # 137.868 ms
initcall: 0020de1f
                                         #       1 us # 142.636 ms
initcall: 0020e015
Model: Evb-RK3288
                                         #    1646 us # 149. 48 ms
initcall: 0020dd61
PreSerial: 2
                                         #    1213 us # 155. 28 ms
initcall: 0020ddcd
DRAM:                                    #     606 us # 160.401 ms
initcall: 00203719
              // 如下 187 us     是 initcall: 00203719 调⽤的耗时
              // 如下 165.355 ms 是 initcall: 00203719 为⽌的U-Boot启动耗时
                                         #     187 us # 165.355 ms
initcall: 0020de81
                                         #       2 us # 169.938 ms
initcall: 0020dc29
                                         #       1 us # 174.703 ms
initcall: 0020dc3d
                                         #       1 us # 179.469 ms
initcall: 0020ddad
                                         #       2 us # 184.237 ms
initcall: 0020de27
                                         #       1 us # 189.  2 ms
......

[    0.324987] U-Boot 2017.09-00019-g9b55ed0-dirty (Dec 26 2019 - 14:31:44 +0800)

[    0.327215] Model: Evb-RK3288
[    0.330039] PreSerial: 2
[    0.332526] DRAM:  2 GiB
[    0.336454] Relocation Offset: 00000000, fdt: 7be22c38
[    0.346981] Using default environment

[    0.351075] dwmmc@ff0c0000: 1, dwmmc@ff0f0000: 0
[    0.394136] Bootdev(atags): mmc 0
[    0.394272] MMC0: High Speed, 52Mhz
[    0.395276] PartType: EFI
[    0.400347] Android 9.0, Build 2019.6
[    0.402070] boot mode: None
[    0.405213] Found DTB in boot part
[    0.407833] DTB: rk-kernel.dtb
[    0.418211] ANDROID: fdt overlay OK
[    0.432128] I2c0 speed: 400000Hz
[    0.435916] PMIC:  RK808
[    0.439113] vdd_arm 1100000 uV
[    0.444148] vdd_gpu 1100000 uV
......

[    1.005018] ## Booting Android Image at 0x02007800 ...
[    1.009917] Kernel load addr 0x02008000 size 8062 KiB
[    1.014981] ## Flattened Device Tree blob at 08300000
[    1.019970]    Booting using the fdt blob at 0x8300000
[    1.025185]    XIP Kernel Image ... OK
[    1.035469]   'reserved-memory' dma-unusable@fe000000: addr=fe000000 size=1000000
[    1.037448]   'reserved-memory' ramoops@00000000: addr=8000000 size=f0000
[    1.044412]    Using Device Tree in place at 08300000, end 08316ed1
[    1.064363] Adding bank: 0x00000000 - 0x08400000 (size: 0x08400000)
[    1.064976] Adding bank: 0x09200000 - 0x80000000 (size: 0x76e00000)
[    1.075259] Total: 812.613 ms
[    1.075279] Starting kernel ...
......：

#define EMMC_VENDOR_PART_OFFSET     (1024 * 7)
/* --- Spi Nand/SLC/MLC large capacity case define --- */
#define NAND_VENDOR_PART_OFFSET     0
/* --- Spi/Spi Nand/SLC/MLC small capacity case define --- */
#define FLASH_VENDOR_PART_OFFSET    8
......

int vendor_storage_read(u16 id, void *pbuf, u16 size)
int vendor_storage_write(u16 id, void *pbuf, u16 size)

// 32位：
prebuilts/gcc/linux-x86/arm/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf
// 64位：
prebuilts/gcc/linux-x86/aarch64/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/

make rv1126_defconfig rv1126-emmc-tb.config && make

./scripts/sync-fragment.sh configs/rv1126-emmc-tb.config

./make.sh [board]               // [board]：configs/[board]_defconfig⽂件。

./make.sh rk3399                // build for rk3399_defconfig
./make.sh evb-rk3399            // build for evb-rk3399_defconfig
./make.sh firefly-rk3288        // build for firefly-rk3288_defconfig

./make.sh

// 编译...
....

// uboot打包过程
load addr is 0x60000000!
pack input u-boot.bin
pack file size: 478737
crc = 0x840f163c
uboot version: v2017.12 Dec 11 2017
pack uboot.img success!
pack uboot okay! Input: u-boot.bin

// loader打包过程及引⽤的ini⽂件
out:rk3126_loader_v2.09.247.bin
fix opt:rk3126_loader_v2.09.247.bin
merge success(rk3126_loader_v2.09.247.bin)
pack loader okay! Input: /home/cjh/rkbin/RKBOOT/RK3126MINIALL.ini

// trust打包过程及引⽤的ini⽂件
 load addr is 0x68400000!
pack file size: 602104
crc = 0x9c178803
trustos version: Trust os
pack ./trust.img success!
trust.img with ta is ready
pack trust okay! Input: /home/cjh/rkbin/RKTRUST/RK3126TOS.ini

// 提⽰编译成功。注意：即使上述的trust和loader打包失败也会提⽰这句话，说明⾄少⽣成了uboot.img
Platform RK3126 is build OK, with new .config(make rk3126_defconfig)

./uboot.img
./trust.img    // 注意：如果是fit格式的固件，则没有trust.img。trust的⼆进制被打包在uboot.img⾥。
./rk3126_loader_v2.09.247.bin

...
PartType: EFI // 当前为GPT分区表，否则打印"PartType: RKPARM"
...

./make.sh trust              // 打包trust
./make.sh loader             // 打包loader
./make.sh trust <ini-file>   // 打包trust时指定ini⽂件，否则使⽤默认ini⽂件
./make.sh loader <ini-file>  // 打包loader时指定ini⽂件，否则使⽤默认ini⽂件

// 旧脚本：
./make.sh spl                // ⽤tpl+spl替换ddr和miniloader，打包成loader
./make.sh spl-s              // ⽤spl替换miniloader，打包成loader

// 新脚本：
./make.sh --spl              // ⽤spl替换miniloader，打包成loader
./make.sh --tpl              // ⽤tpl替换ddr，打包成loader
./make.sh --tpl --spl        // ⽤tpl、spl替换ddr、miniloader，打包成loader
./make.sh --spl-new          // ./make.sh --spl 命令只打包但不编译，此命令会重新编译再打包。

CONFIG_ARM64_BOOT_AARCH32=y

// A/B依赖的库
CONFIG_AVB_LIBAVB=y
CONFIG_AVB_LIBAVB_AB=y
CONFIG_AVB_LIBAVB_ATX=y
CONFIG_AVB_LIBAVB_USER=y
CONFIG_RK_AVB_LIBAVB_USER=y
// 使能A/B功能
CONFIG_ANDROID_AB=y

FIRMWARE_VER:8.1
MACHINE_MODEL:RK3326
MACHINE_ID:007
MANUFACTURER: RK3326
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: 3326
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT
CMDLINE:
mtdparts=rk29xxnand:0x00002000@0x00004000(uboot_a),0x00002000@0x00006000(uboot_b),0x00002000
@0x00008000(trust_a),0x00002000@0x0000a000(trust_b),0x00001000@0x0000c000(misc),0x00001000@0
x0000d000(vbmeta_a),0x00001000@0x0000e000(vbmeta_b),0x00020000@0x0000e000(boot_a),0x00020000
@0x0002e000(boot_b),0x00100000@0x0004e000(system_a),0x00300000@0x0032e000(system_b),0x001000
00@0x0062e000(vendor_a),0x00100000@0x0072e000(vendor_b),0x00002000@0x0082e000(oem_a),0x00002
000@0x00830000(oem_b),0x0010000@0x00832000(factory),0x00008000@0x842000(factory_bootloader),
0x00080000@0x008ca000(oem),-@0x0094a000(userdata)

commit c6666740ee3b51c3e102bfbaf1ab95b78df29246
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Thu Oct 24 15:48:46 2019 +0800

    common: android/rkimg: remove/clean android a/b (slot) code

    - the partition disk layer takes over the responsibility of slot suffix
      appending, we remove relative code to make file clean;
    - put android a/b code together and name them to be eary understood,
      this makes file esay to read.

    Change-Id: Id8c838da682ce6098bd7192d7d7c64269f4e86ba
    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

struct android_bootloader_message {
    char command[32];
    char status[32];
    char recovery[768];

    /* The 'recovery' field used to be 1024 bytes.  It has only ever
     * been used to store the recovery command line, so 768 bytes
     * should be plenty.  We carve off the last 256 bytes to store the
     * stage string (for multistage packages) and possible future
     * expansion. */
    char stage[32];

    /* The 'reserved' field used to be 224 bytes when it was initially
     * carved off from the 1024-byte recovery field. Bump it up to
     * 1184-byte so that the entire bootloader_message struct rounds up
     * to 2048-byte. */
    char reserved[1184];
};

CONFIG_OPTEE_CLIENT=y
CONFIG_OPTEE_V1=y
CONFIG_OPTEE_ALWAYS_USE_SECURITY_PARTITION=y  // 安全数据存储到security分区

CONFIG_AVB_LIBAVB=y
CONFIG_AVB_LIBAVB_AB=y
CONFIG_AVB_LIBAVB_ATX=y
CONFIG_AVB_LIBAVB_USER=y
CONFIG_RK_AVB_LIBAVB_USER=y
// 上⾯⼏个为必选，下⾯选择为⽀持 AVB 与 A/B 特性，两个特性可以分开使⽤。
CONFIG_ANDROID_AB=y //这个⽀持 A/B
CONFIG_ANDROID_AVB=y //这个⽀持 AVB
// 下⾯宏为仅有 efuse 的平台使⽤
CONFIG_ROCKCHIP_PRELOADER_PUB_KEY=y
// 下⾯宏需要严格unlock校验时候打开
CONFIG_RK_AVB_LIBAVB_ENABLE_ATH_UNLOCK=y
// 安全校验开启
CONFIG_AVB_VBMETA_PUBLIC_KEY_VALIDATE=y
// 如果需要cpuid作为challenge number，开启以下宏
CONFIG_MISC=y
CONFIG_ROCKCHIP_EFUSE=y
CONFIG_ROCKCHIP_OTP=y

  CMDLINE: console=ttyFIQ0 androidboot.baseband=N/A androidboot.selinux=permissive
androidboot.hardware=rk30board androidboot.console=ttyFIQ0 init=/init
mtdparts=rk29xxnand:0x00002000@0x00002000(uboot),0x00002000@0x00004000(trust),

chosen {
    bootargs = "earlyprintk=uart8250,mmio32,0xff30000 swiotlb=1 console=ttyFIQ0
                androidboot.baseband=N/A androidboot.veritymode=enforcing
                androidboot.hardware=rk30board androidboot.console=ttyFIQ0
                init=/init kpti=0";
};

storagemedia=emmc androidboot.mode=emmc ......

CONFIG_CMD_DFU=y
CONFIG_USB_FUNCTION_DFU=y

CONFIG_DFU_MMC
CONFIG_DFU_MTD
CONFIG_DFU_NAND
CONFIG_DFU_RAM
CONFIG_DFU_SF

./make.sh rv1126-dfu

dfu 0 $devtype $devnum

./dfu-util.exe -l

F:\Prj\20210901-Hisense-AB\dfu-util-0.9-win64>dfu-util.exe -l
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Found DFU: [2207:0107] ver=0223, devnum=16, cfg=1, intf=0, path="1-12", alt=5,
name="userdata", serial="UNKNOWN"
Found DFU: [2207:0107] ver=0223, devnum=16, cfg=1, intf=0, path="1-12", alt=4,
name="rootfs", serial="UNKNOWN"
Found DFU: [2207:0107] ver=0223, devnum=16, cfg=1, intf=0, path="1-12", alt=3, name="boot",
serial="UNKNOWN"
Found DFU: [2207:0107] ver=0223, devnum=16, cfg=1, intf=0, path="1-12", alt=2, name="uboot",
serial="UNKNOWN"
Found DFU: [2207:0107] ver=0223, devnum=16, cfg=1, intf=0, path="1-12", alt=1,
name="loader", serial="UNKNOWN"
Found DFU: [2207:0107] ver=0223, devnum=16, cfg=1, intf=0, path="1-12", alt=0, name="gpt",
serial="UNKNOWN"

F:\Prj\20210901-Hisense-AB\dfu-util-0.9-win64>dfu-util.exe -d 2207:0107 -a system_b -D
rootfs.img -R

dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 2207:0107
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #8 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 4096
Copying data from PC to DFU device
Download        [=========================] 100%     49938432 bytes
Download done.
state(7) = dfuMANIFEST, status(0) = No error condition is present
state(2) = dfuIDLE, status(0) = No error condition is present
Done!
can't detach
Resetting USB to switch back to runtime mode

dtc -@ -O dtb -o my_main_dt.dtb my_main_dt.dts

dtc -@ -O dtb -o my_overlay_dt.dtbo my_overlay_dt.dts

CONFIG_CMD_DTIMG=y
CONFIG_OF_LIBFDT_OVERLAY=y

/*
* Default return index 0.
*/
__weak int board_select_fdt_index(ulong dt_table_hdr)
{
    /*
     * User can use "dt_for_each_entry(entry, hdr, idx)" to iterate
     * over all dt entry of DT image and pick up which they want.
     *
     * Example:
     *  struct dt_table_entry *entry;
     *  int index;
     *
     *  dt_for_each_entry(entry, dt_table_hdr, index) {
     *
     *      .... (use entry)
     *  }
     *
     *  return index;
     */
    return 0;
}

// 成功时的打印
ANDROID: fdt overlay OK

// 失败时的打印
ANDROID: fdt overlay failed, ret=-19

androidboot.dtbo_idx=1  // idx从0开始，这⾥表⽰选取idx=1的那份DTBO进⾏DTO操作

// 默认配置：ENV保存在内存
CONFIG_ENV_IS_NOWHERE

// ENV保存在各种存储介质
CONFIG_ENV_IS_IN_MMC
CONFIG_ENV_IS_IN_NAND
CONFIG_ENV_IS_IN_EEPROM
CONFIG_ENV_IS_IN_FAT
CONFIG_ENV_IS_IN_FLASH
CONFIG_ENV_IS_IN_NVRAM
CONFIG_ENV_IS_IN_ONENAND
CONFIG_ENV_IS_IN_REMOTE
CONFIG_ENV_IS_IN_SPI_FLASH
CONFIG_ENV_IS_IN_UBI

// 任意已经接⼊到BLK框架层的存储介质（mmc除外），RK平台推荐使⽤ ！
CONFIG_ENV_IS_IN_BLK_DEV

./env/nowhere.c
./env/env_blk.c
./env/mmc.c
./env/nand.c
./env/eeprom.c
./env/embedded.c
./env/ext4.c
./env/fat.c
./env/flash.c
......

// 获取环境变量
char *env_get(const char *varname);
ulong env_get_ulong(const char *name, int base, ulong default_val);
ulong env_get_hex(const char *varname, ulong default_val);

// 修改或创建环境变量，value为NULL时等同于删除操作
int env_set(const char *varname, const char *value);
int env_set_ulong(const char *varname, ulong value);
int env_set_hex(const char *varname, ulong value);

// 把保存在存储介质上的ENV信息全部加载出来
int env_load(void);

// 把当前所有ENV信息保存到存储介质上
int env_save(void);

/**
 * env_update() - update sub value of an environment variable
 *
 * This add/append/replace the sub value of an environment variable.
 *
 * @varname: Variable to adjust
 * @valude: Value to add/append/replace
 * @return 0 if OK, 1 on error
 */
int env_update(const char *varname, const char *varvalue);

/**
 * env_update_filter() - update sub value of an environment variable but
 * ignore some key word
 *
 * This add/append/replace/igore the sub value of an environment variable.
 *
 * @varname: Variable to adjust
 * @valude: Value to add/append/replace
 * @ignore: Value to be ignored that in varvalue
 * @return 0 if OK, 1 on error
 */
int env_update_filter(const char *varname, const char *varvalue, const char *ignore);

if ARCH_ROCKCHIP
config ENV_OFFSET
    hex
    depends on !ENV_IS_IN_UBI
    depends on !ENV_IS_NOWHERE
    default 0x3f8000
    help
      Offset from the start of the device (or partition)

config ENV_SIZE
    hex
    default 0x8000
    help
      Size of the environment storage area
endif

// 已经默认被指定好，不需要修改
CONFIG_ENV_OFFSET
CONFIG_ENV_SIZE

// 通常不需要使⽤到
CONFIG_ENV_OFFSET_REDUND (optional)
CONFIG_ENV_SIZE_REDUND (optional)
CONFIG_SYS_MMC_ENV_PART (optional)

./make.sh env

./tools/env/fw_printenv      // env读写⼯具
./tools/env/fw_env.config    // env配置⽂件
./tools/env/README           // env读写⼯具说明⽂档

CONFIG_ENVF
CONFIG_SPL_ENVF
CONFIG_ENVF_LIST="blkdevparts mtdparts sys_bootargs app reserved"

// eMMC：
// 指定 Primary env.img 的存储地址。单位：字节。
CONFIG_ENV_OFFSET=0x0
// 指定 Backup env.img 的存储地址，⽆备份时跟CONFIG_ENV_OFFSET保持⼀致。单位：字节。
CONFIG_ENV_OFFSET_REDUND=0x0
// Primary 和 Backup env.img 的⼤⼩。单位：字节。
CONFIG_ENV_SIZE=0x8000

// spi-nor：⽤法同上。
CONFIG_ENV_NOR_OFFSET=0x0
CONFIG_ENV_NOR_OFFSET_REDUND=0x0
CONFIG_ENV_NOR_SIZE=0x10000

// spi-nand/slc-nand：⽤法同上。
CONFIG_ENV_NAND_OFFSET=0x0
CONFIG_ENV_NAND_OFFSET_REDUND=0x0
CONFIG_ENV_NAND_SIZE=0x40000

./env/envf.c

// 默认参与U-Boot的编译并⽣成 tools/mkenvimage，⽤于打包env.img
./tools/mkenvimage.c

// 必须定义系统分区表，否则⽆法正常启动。例如：
blkdevparts=mmcblk0:4M@8M(uboot),4M(trust),32M(boot),32M(recovery),32M(backup),-(rootfs)
sys_bootargs=rootwait earlycon=uart8250,mmio32,0xff570000 console=ttyFIQ0
......

// eMMC：
blkdevparts=mmcblk0:32K(env),512K@32K(idblock),256K(uboot),32M(boot),2G(rootfs),1G(oem),2G(u
serdata),-(media)

// spi-nor：
mtdparts=sfc_nor:64K(env),128K@64K(idblock),128K(uboot),2M(boot),4M(rootfs),6M(oem),-
(userdata)

// spi-nand/slc-nand：
mtdparts=rk-
nand:256K(env),256K@256K(idblock),256K(uboot),8M(boot),64M(rootfs),32M(userdata),-(media)

## Chapter-4 eMMC:
./tools/mkenvimage -s 0x8000 -p 0x0 -o env.img env.txt

## Chapter-4 spi-nor:
./tools/mkenvimage -s 0x10000 -p 0x0 -o env.img env.txt

#spi-nand/slc-nand：
./tools/mkenvimage -s 0x40000 -p 0x0 -o env.img env.txt

// 使能ENVF
CONFIG_ENVF=y
CONFIG_SPL_ENVF=y
CONFIG_ENVF_LIST="blkdevparts mtdparts sys_bootargs app reserved"

// eMMC：
CONFIG_ENV_SIZE=0x8000
CONFIG_ENV_OFFSET=0x0
CONFIG_ENV_OFFSET_REDUND=0x0

// spi nor:
CONFIG_ENV_NOR_OFFSET=0x0
CONFIG_ENV_NOR_OFFSET_REDUND=0x0
CONFIG_ENV_NOR_SIZE=0x10000

// spi nand/slc nand：
CONFIG_ENV_NAND_OFFSET=0x0
CONFIG_ENV_NAND_OFFSET_REDUND=0x0
CONFIG_ENV_NAND_SIZE=0x40000

......
dwmmc@ffc50000: 0, dwmmc@ffc60000: 1
Bootdev(atags): mmc 0
MMC0: HS200, 200Mhz
// 有如下打印
ENVF: Primary 0x00000000 - 0x00008000
ENVF: OK
PartType: ENV
DM: v1
boot mode: normal
FIT: no signed, no conf required
DTB: rk-kernel.dtb
......

=> env save
Saving Environment to env...  // 导出并保存⽩名单⾥的环境变量

// 使能配置
CONFIG_FASTBOOT
CONFIG_FASTBOOT_FLASH
CONFIG_USB_FUNCTION_FASTBOO

// 参数配置
CONFIG_FASTBOOT_BUF_ADDR
CONFIG_FASTBOOT_BUF_SIZE
CONFIG_FASTBOOT_FLASH_MMC_DEV
CONFIG_FASTBOOT_USB_DEV

fastboot flash < partition > [ < filename > ]
fastboot erase < partition >
fastboot getvar < variable > | all
fastboot set_active < slot >
fastboot reboot
fastboot reboot-bootloader
fastboot flashing unlock
fastboot flashing lock
fastboot stage [ < filename > ]
fastboot get_staged [ < filename > ]
fastboot oem fuse at-perm-attr-data
fastboot oem fuse at-perm-attr
fastboot oem at-get-ca-request
fastboot oem at-set-ca-response
fastboot oem at-lock-vboot
fastboot oem at-unlock-vboot
fastboot oem at-disable-unlock-vboot
fastboot oem fuse at-bootloader-vboot-key
fastboot oem format
fastboot oem at-get-vboot-unlock-challenge
fastboot oem at-reset-rollback-index

version                               /* fastboot 版本 */
version-bootloader                    /* uboot 版本 */
version-baseband
product                               /* 产品信息 */
serialno                              /* 序列号 */
secure                                /* 是否开启安全校验 */
max-download-size                     /* fastboot ⽀持单次传输最⼤字节数 */
logical-block-size                    /* 逻辑块数 */
erase-block-size                      /* 擦除块数 */
partition-type : < partition >        /* 分区类型 */
partition-size : < partition >        /* 分区⼤⼩ */
unlocked                              /* 设备lock状态 */
off-mode-charge
battery-voltage
variant
battery-soc-ok
slot-count                            /* slot 数⽬ */
has-slot: < partition >               /* 查看slot内是否有该分区名 */
current-slot                          /* 当前启动的slot */
slot-suffixes                         /* 当前设备具有的slot,打印出其name */
slot-successful: < _a | _b >          /* 查看分区是否正确校验启动过 */
slot-unbootable: < _a | _b >          /* 查看分区是否被设置为unbootable */
slot-retry-count: < _a | _b >         /* 查看分区的retry-count次数 */
at-attest-dh
at-attest-uuid
at-vboot-state

CONFIG_DOS_PARTITION=y
CONFIG_FS_FAT=y
CONFIG_FAT_WRITE=y
CONFIG_FS_FAT_MAX_CLUSTSIZE=65536
CONFIG_CMD_FAT=y
CONFIG_CMD_FS_GENERIC=y

fatinfo fatload fatls fatsize fatwrite

CONFIG_CMD_EXT2=y
CONFIG_CMD_EXT4=y
CONFIG_CMD_FS_GENERIC=y

ext2load ext2ls ext4load ext4ls ext4size

int file_fat_detectfs(void);
int fat_exists(const char *filename);
int fat_size(const char *filename, loff_t *size);
int file_fat_read_at(const char *filename, loff_t pos, void *buffer,
             loff_t maxsize, loff_t *actread);
int file_fat_read(const char *filename, void *buffer, int maxsize);
int fat_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
int fat_register_device(struct blk_desc *dev_desc, int part_no);

int file_fat_write(const char *filename, void *buf, loff_t offset, loff_t len,
           loff_t *actwrite);
int fat_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
          loff_t *actread);
int fat_opendir(const char *filename, struct fs_dir_stream **dirsp);
int fat_readdir(struct fs_dir_stream *dirs, struct fs_dirent **dentp);
void fat_closedir(struct fs_dir_stream *dirs);
void fat_close(void);

struct ext_filesystem *get_fs(void);
int ext4fs_open(const char *filename, loff_t *len);
int ext4fs_read(char *buf, loff_t offset, loff_t len, loff_t *actread);
int ext4fs_mount(unsigned part_length);
void ext4fs_close(void);
void ext4fs_reinit_global(void);
int ext4fs_ls(const char *dirname);
int ext4fs_exists(const char *filename);
int ext4fs_size(const char *filename, loff_t *size);
void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot);
int ext4fs_devread(lbaint_t sector, int byte_offset, int byte_len, char *buf);
void ext4fs_set_blk_dev(struct blk_desc *rbdd, disk_partition_t *info);
long int read_allocated_block(struct ext2_inode *inode, int fileblock);
int ext4fs_probe(struct blk_desc *fs_dev_desc,
         disk_partition_t *fs_partition);
int ext4_read_file(const char *filename, void *buf, loff_t offset, loff_t len,
           loff_t *actread);
int ext4_read_superblock(char *buffer);
int ext4fs_uuid(char *uuid_str);

// 确认SD卡可识别（如果是U盘则⽤usb命令进⾏识别，设备编号⼀般是：usb 0）
=> mmc dev 1
switch to partitions #0, OK
mmc1 is current device

// 查看信息
=> fatinfo mmc 1
Interface:  MMC
  Device 1: Vendor: Man 000003 Snr e81ec501 Rev: 1.9 Prod: SC16G
  Type: Removable Hard Disk
  Capacity: 15193.5 MB = 14.8 GB (31116288 x 512)
Filesystem: FAT32 "NO NAME    "

// 查看⽂件
=> fatls mmc 1
            System Volume Information/
       23   hello.txt
       23   linux.txt

2 file(s), 1 dir(s)

// 读取hello.txt⽂件的⼤⼩（结果默认被保存到变量filesize中）
=> fatsize mmc 1 hello.txt
=> echo $filesize
0x17

// 读取hello.txt⽂件到0x2000000地址
=> fatload mmc 1 0x2000000 hello.txt
reading hello.txt
23 bytes read in 2 ms (10.7 KiB/s)
// 查看读取的hello.txt内容
=> md.l 0x2000000
02000000: 6c6c6568 65682d6f 2d6f6c6c 6c6c6568    hello-hello-hell
02000010: 65682d6f ff6f6c6c ffffffff ffffffff    o-hello.........

// 新建⽂件：hello-copy.txt。把0x2000000~0x2000017的地址内容写⼊hello-copy.txt。
=> fatwrite mmc 1 0x2000000 hello-copy.txt 0x17
writing hello-copy.txt
23 bytes written
// 看到新⽂件：hello-copy.txt
=> fatls mmc 1
            System Volume Information/
       23   hello.txt
       23   linux.txt
       23   hello-copy.txt

3 file(s), 1 dir(s)

rk3326-evb-lp3-v10#saradc_ch2=111#saradc_ch1=810.dtb
rk3326-evb-lp3-v10#_saradc_ch2=569.dtb

rk3326-evb-lp3-v10#gpio0a2=0#gpio0c3=1.dtb

...
DTBS = {}
DTBS['PX30-EVB'] = OrderedDict([('rk3326-evb-lp3-v10', '#_saradc_ch0=166'),
                ('px30-evb-ddr3-lvds-v10', '#_saradc_ch0=512')])
...

diff --git a/scripts/mkimg b/scripts/mkimg
index 1d895602935..5e1355b9da8 100755
--- a/scripts/mkimg
+++ b/scripts/mkimg
@@ -248,6 +248,7 @@ if [ "${srctree}" != "${objtree}" ]; then
 fi
 scripts/resource_tool ${DTB_PATH} ${LOGO} ${LOGO_KERNEL} >/dev/null
 echo "  Image:  resource.img (with ${DTB} ${LOGO} ${LOGO_KERNEL}) is ready"
+./scripts/mkmultidtb.py PX30-EVB

 if [ -f "${BOOT_IMG}" ]; then
        if file -L -p -b ${BOOT_IMG} | grep -q 'Device Tree Blob' ; then

CONFIG_ROCKCHIP_HWID_DTB=y

./arch/arm/mach-rockchip/resource_img.c // 具体实现：rockchip_read_hwid_dtb()

...

&pinctrl {
    u-boot,dm-spl;  // 追加该属性，让该节点被保留在U-Boot DTB中。下同。
};

&gpio0 {
    u-boot,dm-spl;
};

&gpio1 {
    u-boot,dm-spl;
};

...

......
mmc0(part 0) is current device
boot mode: None
DTB: rk3326-evb-lp3-v10#_saradc_ch0=166.dtb // 打印匹配的DTB，否则默认"rk-kernel.dtb"
Using kernel dtb
......

CONFIG_ROCKCHIP_USB_BOOT=y

commit 369e944c844f783508b7839ae86a3418e2f63bc7
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Thu Dec 12 18:07:07 2019 +0800

    fdt/Makefile: make u-boot-dtb.bin 8-byte aligned

    The dts/kern.dtb is appended after u-boot-dtb.bin for U-disk boot.

    Make sure u-boot-dtb.bin is 8-byte aligned to avoid data-abort on
    calling: fdt_check_header(gd->fdt_blob_kern).

    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
    Change-Id: Id5f2daf0c5446e7ea828cb970d3d4879e3acda86

369e944 fdt/Makefile: make u-boot-dtb.bin 8-byte aligned
b3b57ac rockchip: board: fix always entering recovery on normal boot U-disk
e0cee41 rockchip: resource: add sha1/256 verify for kernel dtb
5e817a0 tools: rockchip: resource_tool: add sha1 for file entry
fc474da lib: sha256: add sha256_csum()
0ed06f1 rockchip: support boot from U-disk
01f0422 common: bootm: skip usb_stop() if usb is boot device
5704c89 fdtdec: support pack "kern.dtb" to the end of u-boot.bin
3bdef7e gpt: return 1 directly when test the mbr sector

commit f9c0b0b72673a65865b00a8824908ca6f12ecc32
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Thu Nov 7 09:21:36 2019 +0800

    tools: resource: add sha1 for file entry

    Base on U-Boot next-dev branch:
    (5e817a0 tools: rockchip: resource_tool: add sha1 for file entry)

    Change-Id: Ife061cabacab488dbecf2a3245d58cc660091dbd
    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

commit 078785057478c789bb033ba06925fa3a07e3130a
Author: Tao Huang <huangtao@rock-chips.com>
Date:   Thu Nov 7 17:53:38 2019 +0800

    rk: scripts/resource_tool: add sha1 for file entry

    From u-boot 5e817a0ea427 ("tools: rockchip: resource_tool: add sha1 for file
entry").
    Merge all C files to one resource_tool.c

    Change-Id: If63ba77d1f5a3660bd6ef87769bb456fa086ae71
    Signed-off-by: Tao Huang <huangtao@rock-chips.com>

CONFIG_AMP
CONFIG_ROCKCHIP_AMP

./drivers/cpu/rockchip_amp.c

./drivers/cpu/amp.its

./tools/mkimage  // 完整编译⼀次U-Boot后会⾃动⽣成

commit c51cf04095dde2df2dd047e70d2c7fb0866ea916
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Tue Oct 19 03:16:35 2021 +0000

    cpu: amp.its: update amps "arm64" => "arm"

    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
    Change-Id: I99de02c5b6c62ffdd9b25565acd172801d6e983c

/dts-v1/;
/ {
    description = "FIT source file for rockchip AMP";
    #address-cells = <1>;

    // 所有AMP固件（不含Linux）请在images节点下指定；
    images {
        amp1 {
            description  = "bare-mental-core1";       // 必选项：描述信息
            data         = /incbin/("./amp1.bin");    // 必选项：amp1固件
            type         = "firmware";  // 必选项：不做改动
            compression  = "none";      // 必选项：不做改动
        arch         = "arm";       // 必选项："arm64"：64位， "arm"：32位
        cpu          = <0x100>;     // 必选项：cpu硬件id(mpidr)
        thumb        = <0>;         // 必选项：0: arm or thumb2; 1: 纯thumb
        hyp          = <0>;         // 必选项：0: el1/svc; 1: el2/hyp
        load         = <0x01800000>;// 必选项：固件加载和运⾏地址
        udelay       = <1000000>;   // 可选项：启动完当前CPU后做延时后再启动下⼀个CPU
        hash {                      // 必选项：不做改动
            algo = "sha256";
        };
    };

    amp2 {
        description  = "bare-mental-core2";
        data         = /incbin/("./amp2.bin");
        type         = "firmware";
        compression  = "none";
        arch         = "arm";
        cpu          = <0x200>;
        thumb        = <0>;
        hyp          = <0>;
        load         = <0x03800000>;
        udelay       = <1000000>;
        hash {
            algo = "sha256";
        };
    };

    amp3 {
        description  = "bare-mental-core3";
        data         = /incbin/("./amp3.bin");
        type         = "firmware";
        compression  = "none";
        arch         = "arm";
        cpu          = <0x300>;
        thumb        = <0>;
        hyp          = <0>;
        load         = <0x05800000>;
        udelay       = <1000000>;
        hash {
            algo = "sha256";
        };
    };
};

configurations {
    default = "conf";
    conf {
        description = "Rockchip AMP images";
        rollback-index = <0x0>;
        // 指定需要被加载的固件及其加载、启动顺序，但是主核不受此顺序限制。
        loadables = "amp1", "amp2", "amp3";

        signature {
                algo = "sha256,rsa2048";
                padding = "pss";
                key-name-hint = "dev";
                sign-images = "loadables";
            };

            // Linux CPU的运⾏状态指定：
            // （1）只有udelay属性是可选项；
            // （2）启动地址不可配，由U-Boot的平台配置⽂件决定，例如：rk3568_common.h；
            linux {
                description  = "linux-os";
                arch         = "arm64";
                cpu          = <0x000>;    // CPU0跑linux
                thumb        = <0>;
                hyp          = <0>;
                udelay       = <1000000>;
            };
        };
    };
};

cpus {
    #address-cells = <2>;
    #size-cells = <0>;

    cpu0: cpu@0 {
        device_type = "cpu";
        compatible = "arm,cortex-a55";
        reg = <0x0 0x0>;    // mpidr
        ......
    };

    cpu1: cpu@100 {
        device_type = "cpu";
        compatible = "arm,cortex-a55";
        reg = <0x0 0x100>;  // mpidr
        ......
    };
    ......
};

// 0xe00为固件头⼤⼩，不建议改变
./tools/mkimage -f ./drivers/cpu/amp.its -E -p 0xe00 amp.img

......
// 主核加载固件amp3固件
### Loading loadables from FIT Image at 7bdbcf80 ...
   Trying 'amp3' loadables subimage
     Description:  rtthread
     Type:         Firmware
     Compression:  uncompressed
     Data Start:   0x7bdbdd80
     Data Size:    311296 Bytes = 304 KiB
     Architecture: ARM
     Load Address: 0x01800000
     Hash algo:    sha256
     Hash value:   d08db937e4d7bd4125056239154bb30d44a2fcca9e70aa8dea448fabda4838d5
   Verifying Hash Integrity ... sha256+ OK
   Loading loadables from 0x7bdbdd80 to 0x01800000
### Booting FIT Image FIT: No fit blob
FIT: No FIT image
ANDROID: reboot reason: "(none)"
optee api revision: 2.0
TEEC: Waring: Could not find security partition
Not AVB images, AVB skip
ANDROID: Hash OK

// 主核加载Linux固件
Booting IMAGE kernel at 0x03880000 with fdt at 0x0a100000...

Fdt Ramdisk skip relocation
### Booting Android Image at 0x0387f800 ...
Kernel load addr 0x03880000 size 21655 KiB
### Flattened Device Tree blob at 0x0a100000
   Booting using the fdt blob at 0x0a100000
   XIP Kernel Image from 0x03880000 to 0x03880000 ... OK
  'reserved-memory' ramoops@110000: addr=110000 size=f0000
   Using Device Tree in place at 000000000a100000, end 000000000a12322a
vp1 adjust cursor plane from 0 to 1
vp0, plane_mask:0x2a, primary-id:5, curser-id:1
vp1 adjust cursor plane from 1 to 0
vp1, plane_mask:0x15, primary-id:4, curser-id:0
vp2, plane_mask:0x0, primary-id:0, curser-id:-1
Adding bank(fixed): 0x03880000 - 0x80000000 (size: 0x7c780000)

// ⾄此，所有的固件都被加载完毕，如下开始按⽅案的优先级规则去启动各个CPU。

// 主核启动CPU0跑Linux (CPU1/2后续通过Linux启动)
AMP: Brought up cpu[0] with state 0x12, entry 0x03880000 ...OK
// 主核启动⾃⼰（CPU3）跑AMP固件
AMP: Brought up cpu[300, self] with state 0x10, entry 0x01800000 ...OK

// Linux在CPU0上运⾏：
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x412fd050]
[    0.000000] Linux version 4.19.193 (stevenliu@stevenliu) (gcc version 6.3.1 20170404
(Linaro GCC 6.3-2017.05), GNU ld (Linaro_Binutils-2017.05) 2.27.0.20161019) #5 SMP Mon Sep
13 16:22:51 CST 2021
[    0.000000] Machine model: Rockchip RK3568 EVB1 DDR4 V10 Board
......

RK809/RK816/RK817/RK818/cw201x。

// 框架
CONFIG_DM_CHARGE_DISPLAY
CONFIG_CHARGE_ANIMATION
CONFIG_DM_FUEL_GAUGE
// 驱动
CONFIG_POWER_FG_CW201X
CONFIG_POWER_FG_RK818
CONFIG_POWER_FG_RK817
CONFIG_POWER_FG_RK816

./drivers/power/charge-display-uclass.c

// 负责管理整个充电过程，它会获取电量、充电类型、按键事件，发起低功耗休眠等。
./drivers/power/charge_animation.c

./drivers/power/fuel_gauge/fuel_gauge_uclass.c

./drivers/power/fuel_gauge/fg_rk818.c
./drivers/power/fuel_gauge/fg_rk817.c   // rk809复⽤
./drivers/power/fuel_gauge/fg_rk816.c
......

charge-display-uclass.c
    => charge_animation.c
        => fuel_gauge_uclass.c
            => fg_rkxx.c

$ ls tools/images/
battery_0.bmp  battery_1.bmp  battery_2.bmp  battery_3.bmp  battery_4.bmp  battery_bmp
battery_fail.bmp

./pack_resource.sh <input resource.img> 或
./scripts/pack_resource.sh <input resource.img>

./pack_resource.sh  /home/cjh/3399/kernel/resource.img

Pack ./tools/images/ & /home/guest/3399/kernel/resource.img to resource.img ...
Unpacking old image(/home/guest/3399/kernel/resource.img):
rk-kernel.dtb logo.bmp logo_kernel.bmp
Pack to resource.img successed!
Packed resources:
rk-kernel.dtb battery_1.bmp battery_2.bmp battery_3.bmp battery_4.bmp battery_bmp
battery_fail.bmp logo.bmp logo_kernel.bmp battery_0.bmp

resource.img is packed ready

hd resource.img | less

00000000  52 53 43 45 00 00 00 00  01 01 01 00 0a 00 00 00  |RSCE............|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
......
*
00000400  45 4e 54 52 62 61 74 74  65 72 79 5f 31 2e 62 6d  |ENTRbattery_1.bm| // 图⽚1
00000410  70 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |p...............|
00000420  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000500  00 00 00 00 4d 00 00 00  9c 18 00 00 00 00 00 00  |....M...........|
00000510  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000600  45 4e 54 52 62 61 74 74  65 72 79 5f 32 2e 62 6d  |ENTRbattery_2.bm| // 图⽚2
00000610  70 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |p...............|
00000620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
......

charge-animation {
    compatible = "rockchip,uboot-charge";
    status = "okay";

    rockchip,uboot-charge-on = <0>;             // 是否开启U-Boot充电
    rockchip,android-charge-on = <1>;           // 是否开启Android充电
    rockchip,uboot-exit-charge-level = <5>;     // U-Boot充电时，允许开机的最低电量
    rockchip,uboot-exit-charge-voltage = <3650>;// U-Boot充电时，允许开机的最低电压
    rockchip,screen-on-voltage = <3400>;        // U-Boot充电时，允许点亮屏幕的最低电压

    rockchip,uboot-low-power-voltage = <3350>;  // U-Boot⽆条件强制进⼊充电模式的最低电压

    rockchip,system-suspend = <1>;              // 是否灭屏时进⼊trust低功耗待机（要ATF⽀持）
    rockchip,auto-off-screen-interval = <20>;   // ⾃动灭屏超时，单位秒，默认15s
    rockchip,auto-wakeup-interval = <10>;       // 休眠⾃动唤醒时间，单位秒。如果值为0或没
                                                // 有这个属性，则禁⽌休眠⾃动唤醒，⼀般⽤于
                                                // 压⼒测试使⽤
    rockchip,auto-wakeup-screen-invert = <1>;   // 休眠⾃动唤醒时是否需要亮/灭屏
};

/*
 * IF you want to use your own charge images, please:
 *
 * 1. Update the following 'image[]' to point to your own images;
 * 2. You must set the failed image as last one and soc = -1 !!!
 */
static const struct charge_image image[] = {
    { .name = "battery_0.bmp", .soc = 5, .period = 600 },
    { .name = "battery_1.bmp", .soc = 20, .period = 600 },
    { .name = "battery_2.bmp", .soc = 40, .period = 600 },
    { .name = "battery_3.bmp", .soc = 60, .period = 600 },
    { .name = "battery_4.bmp", .soc = 80, .period = 600 },
    { .name = "battery_bmp", .soc = 100, .period = 600 },
    { .name = "battery_fail.bmp", .soc = -1, .period = 1000 },
};

// @name：图⽚的名字；
// @soc：图⽚对应的电量；
// @period：图⽚刷新时间（单位：ms）；
// 注意：最后⼀张图⽚必须是 fail 图⽚，且“soc=-1”不可改变 !!

CONFIG_LED_CHARGING_NAME
CONFIG_LED_CHARGING_FULL_NAME

CONFIG_CLK

./drivers/clk/clk-uclass.c

./drivers/clk/rockchip/...

// 申请时钟
int clk_get_by_index(struct udevice *dev, int index, struct clk *clk);
int clk_get_by_name(struct udevice *dev, const char *name, struct clk *clk);

// 使能/关闭时钟
int clk_enable(struct clk *clk);
int clk_disable(struct clk *clk);

// 配置/获取频率
ulong (*get_rate)(struct clk *clk);
ulong (*set_rate)(struct clk *clk, ulong rate);

// 配置/获取相位
int (*get_phase)(struct clk *clk);
int (*set_phase)(struct clk *clk, int degrees);

cru: clock-controller@ff2b0000 {
    compatible = "rockchip,px30-cru";
    ......
    assigned-clocks =
        <&pmucru PLL_GPLL>, <&pmucru PCLK_PMU_PRE>,
        <&pmucru SCLK_WIFI_PMU>, <&cru ARMCLK>,
        <&cru ACLK_BUS_PRE>, <&cru ACLK_PERI_PRE>,
        <&cru HCLK_BUS_PRE>, <&cru HCLK_PERI_PRE>,
        <&cru PCLK_BUS_PRE>, <&cru SCLK_GPU>;
    assigned-clock-rates =
        <1200000000>, <100000000>,
        <26000000>, <600000000>,
        <200000000>, <200000000>,
        <150000000>, <150000000>,
        <100000000>, <200000000>;
    ......
}

#define APLL_HZ         (600 * MHz)
#define GPLL_HZ         (800 * MHz)
#define CPLL_HZ         (384 * MHz)
#define NPLL_HZ         (600 * MHz)
#define PPLL_HZ         (676 * MHz)
#define PMU_PCLK_HZ     ( 48 * MHz)
#define ACLKM_CORE_HZ   (300 * MHz)
#define ATCLK_CORE_HZ   (300 * MHz)
#define PCLK_DBG_HZ     (100 * MHz)
#define PERIHP_ACLK_HZ  (150 * MHz)
#define PERIHP_HCLK_HZ  ( 75 * MHz)
#define PERIHP_PCLK_HZ  (37500 * KHz)
#define PERILP0_ACLK_HZ (300 * MHz)
#define PERILP0_HCLK_HZ (100 * MHz)
#define PERILP0_PCLK_HZ ( 50 * MHz)
#define PERILP1_HCLK_HZ (100 * MHz)
#define PERILP1_PCLK_HZ ( 50 * MHz)
......

int set_armclk_rate(void)
{
    struct px30_clk_priv *priv;
    struct clk clk;
    int ret;

    ret = rockchip_get_clk(&clk.dev);
    if (ret) {
        printf("Failed to get clk dev\n");
        return ret;
    }
    clk.id = ARMCLK;
    priv = dev_get_priv(clk.dev);
    ret = clk_set_rate(&clk, priv->armclk_hz);
    if (ret < 0) {
        printf("Failed to set armclk %lu\n", priv->armclk_hz);
        return ret;
    }
    priv->set_armclk_rate = true;

    return 0;
}

#ifdef CONFIG_CLK_SCMI
#include <dm.h>
/*
 * armclk: 1104M:
 *  rockchip,clk-init = <1104000000>,
 *  vdd_cpu : regulator-init-microvolt = <825000>;
 * armclk: 1416M(by default):
 *  rockchip,clk-init = <1416000000>,
 *  vdd_cpu : regulator-init-microvolt = <900000>;
 * armclk: 1608M:
 *  rockchip,clk-init = <1608000000>,
 *  vdd_cpu : regulator-init-microvolt = <975000>;
 */

int set_armclk_rate(void)
{
    struct clk clk;
    u32 *rates = NULL;
    int ret, size, num_rates;

    ret = rockchip_get_scmi_clk(&clk.dev);
    if (ret) {
        printf("Failed to get scmi clk dev\n");
        return ret;
    }

    size = dev_read_size(clk.dev, "rockchip,clk-init");
    if (size < 0)
        return 0;

    num_rates = size / sizeof(u32);
    rates = calloc(num_rates, sizeof(u32));
    if (!rates)
        return -ENOMEM;

    ret = dev_read_u32_array(clk.dev, "rockchip,clk-init",
                 rates, num_rates);
    if (ret) {
        printf("Cannot get rockchip,clk-init reg\n");
        return -EINVAL;
    }
    clk.id = 0;
    ret = clk_set_rate(&clk, rates[clk.id]);
    if (ret < 0) {
        printf("Failed to set armclk\n");
        return ret;
    }
    return 0;
}
#endif

CLK: (sync kernel. arm: enter 1200000 KHz, init 1200000 KHz, kernel 800000 KHz)
  apll 800000 KHz
  dpll 392000 KHz
  cpll 1000000 KHz
  gpll 1188000 KHz
  npll 24000 KHz
  ppll 100000 KHz
  hsclk_bus 297000 KHz
  msclk_bus 198000 KHz
  lsclk_bus 99000 KHz
  msclk_peri 198000 KHz
  lsclk_peri 99000 KHz

CONFIG_DM_CRYPTO
// 2选1，各平台的defconfig已默认使能对应配置。
CONFIG_ROCKCHIP_CRYPTO_V1
CONFIG_ROCKCHIP_CRYPTO_V2

./drivers/crypto/crypto-uclass.c
./cmd/crypto.c

// crypto v1:
./drivers/crypto/rockchip/crypto_v1.c

// crytpo v2:
./drivers/crypto/rockchip/crypto_v2.c
./drivers/crypto/rockchip/crypto_v2_pka.c
./drivers/crypto/rockchip/crypto_v2_util.c

// 获取crypto：
struct udevice *crypto_get_device(u32 capability);
// SHA接⼝：
int crypto_sha_init(struct udevice *dev, sha_context *ctx);
int crypto_sha_update(struct udevice *dev, u32 *input, u32 len);
int crypto_sha_final(struct udevice *dev, sha_context *ctx, u8 *output);
int crypto_sha_csum(struct udevice *dev, sha_context *ctx,
            char *input, u32 input_len, u8 *output);
// RSA接⼝：
int crypto_rsa_verify(struct udevice *dev, rsa_key *ctx, u8 *sign, u8 *output);

crypto: crypto@ff8b0000 {
    u-boot,dm-pre-reloc;

    compatible = "rockchip,rk3399-crypto";
    reg = <0x0 0xff8b0000 0x0 0x10000>;
    clock-names = "sclk_crypto0", "sclk_crypto1";
    clocks = <&cru SCLK_CRYPTO0>, <&cru SCLK_CRYPTO1>; // 不需要指定频率，默认100M
    status = "disabled";
};

crypto: crypto@ff0b0000 {
    u-boot,dm-pre-reloc;

    compatible = "rockchip,px30-crypto";
    reg = <0x0 0xff0b0000 0x0 0x4000>;
    clock-names = "sclk_crypto", "apkclk_crypto";
    clocks = <&cru SCLK_CRYPTO>, <&cru SCLK_CRYPTO_APK>;
    clock-frequency = <200000000>, <300000000>; // ⼀般需要指定频率
    status = "disabled";
};

CONFIG_DM_VIDEO
CONFIG_DISPLAY
CONFIG_DRM_ROCKCHIP
CONFIG_DRM_ROCKCHIP_PANEL
CONFIG_DRM_ROCKCHIP_DW_HDMI
CONFIG_DRM_ROCKCHIP_DW_HDMI_QP
CONFIG_DRM_ROCKCHIP_INNO_HDMI
CONFIG_ROCKCHIP_INNO_HDMI_PHY
CONFIG_DRM_ROCKCHIP_INNO_MIPI_PHY
CONFIG_DRM_ROCKCHIP_INNO_VIDEO_PHY
CONFIG_DRM_ROCKCHIP_INNO_VIDEO_COMBO_PHY
CONFIG_DRM_ROCKCHIP_DW_MIPI_DSI
CONFIG_DRM_ROCKCHIP_DW_MIPI_DSI2
CONFIG_DRM_ROCKCHIP_DW_DP
CONFIG_DRM_ROCKCHIP_ANALOGIX_DP
CONFIG_DRM_ROCKCHIP_LVDS
CONFIG_DRM_ROCKCHIP_RGB
CONFIG_DRM_ROCKCHIP_RK618
CONFIG_DRM_ROCKCHIP_RK628
CONFIG_DRM_ROCKCHIP_SAMSUNG_MIPI_DCPHY
CONFIG_PHY_ROCKCHIP_SAMSUNG_HDPTX_HDMI
CONFIG_ROCKCHIP_DRM_TVE
CONFIG_SII902X

drivers/video/drm/rockchip_display.c
drivers/video/drm/rockchip_display.h
drivers/video/drm/rockchip_crtc.c
drivers/video/drm/rockchip_crtc.h
drivers/video/drm/rockchip_connector.c
drivers/video/drm/rockchip_connector.h
drivers/video/drm/rockchip_bridge.c
drivers/video/drm/rockchip_bridge.h
drivers/video/drm/rockchip_panel.c
drivers/video/drm/rockchip_panel.h
drivers/video/drm/rockchip_phy.c
drivers/video/drm/rockchip_phy.h

vop:
  drivers/video/drm/rockchip_vop.c
  drivers/video/drm/rockchip_vop.h
  drivers/video/drm/rockchip_vop_reg.c
  drivers/video/drm/rockchip_vop_reg.h
  drivers/video/drm/rockchip_vop2.c

rgb:
  drivers/video/drm/rockchip_rgb.c
  drivers/video/drm/rockchip_rgb.h

lvds:
  drivers/video/drm/rockchip_lvds.c
  drivers/video/drm/rockchip_lvds.h

mipi:
  drivers/video/drm/drm_mipi_dsi.c
  drivers/video/drm/dw_mipi_dsi.c
  drivers/video/drm/dw_mipi_dsi2.c

edp:
  drivers/video/drm/rockchip_analogix_dp.c
  drivers/video/drm/rockchip_analogix_dp.h
  drivers/video/drm/rockchip_analogix_dp_reg.c
  drivers/video/drm/rockchip_analogix_dp_reg.h

hdmi:
  drivers/video/drm/dw_hdmi.c
  drivers/video/drm/dw_hdmi.h
  drivers/video/drm/rockchip_dw_hdmi.c
  drivers/video/drm/rockchip_dw_hdmi.h
  drivers/video/drm/dw_hdmi_qp.c
  drivers/video/drm/dw_hdmi_qp.h
  drivers/video/drm/rockchip_dw_hdmi_qp.c
  drivers/video/drm/rockchip_dw_hdmi_qp.h

cvbs:
  drivers/video/drm/rockchip_tve.c
  drivers/video/drm/rockchip_tve.h

dp:
  drivers/video/drm/dw-dp.c

bridge:
  drivers/video/drm/rk618.c
  drivers/video/drm/rk618.h
  drivers/video/drm/rk618_lvds.c
  drivers/video/drm/rk618_lvds.c
  drivers/video/drm/rk628/
  drivers/video/drm/sii902x.c

// 显⽰ U-Boot logo 和 kernel logo：
void rockchip_show_logo(void);

// 显⽰ bmp 图⽚，⽬前主要⽤于充电图⽚显⽰：
void rockchip_show_bmp(const char *bmp);

// 将 U-Boot 中的⼀些变量通过 dtb 传给内核。
// 包括 kernel logo 的⼤⼩、地址、格式、bcsh/csc配置、crtc 输出扫描时序以及过扫描的配置等。
void rockchip_display_fixup(void *blob);

reserved-memory {
    #address-cells = <2>;
    #size-cells = <2>;
    ranges;

    drm_logo: drm-logo@00000000 {
        compatible = "rockchip,drm-logo";
        // 预留buffer⽤于kernel logo的存放，具体地址和⼤⼩在U-Boot中会修改
        reg = <0x0 0x0 0x0 0x0>;
    };
};

&route-edp {
    status = "okay";                      // 使能U-Boot logo显⽰功能
    logo,uboot = "logo.bmp";              // 指定U-Boot logo显⽰的图⽚
    logo,kernel = "logo_kernel.bmp";      // 指定kernel logo显⽰的图⽚
    logo,mode = "center";                 // center：居中显⽰，fullscreen：全屏显⽰
    logo,rotate = <90>;                   // 旋转⻆度：90/180/270
    charge_logo,mode = "center";          // center：居中显⽰，fullscreen：全屏显⽰
    connect = <&vopb_out_edp>;            // 确定显⽰通路，vopb->edp->panel
};
&edp {
    status = "okay"; // 使能edp
};

&vopb {
    status = "okay"; // 使能vopb
};

&panel {
    "simple-panel";
    ...
    status = "okay";

    disp_timings: display-timings {
        native-mode = <&timing0>;
        timing0: timing0 {
            ...
        };
    };
};

--- a/configs/evb-rk3308_defconfig
+++ b/configs/evb-rk3308_defconfig
@@ -4,7 +4,6 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
CONFIG_ROCKCHIP_RK3308=y
CONFIG_ROCKCHIP_SPL_RESERVE_IRAM=0x0
CONFIG_RKIMG_BOOTLOADER=y
-# CONFIG_USING_KERNEL_DTB is not set
CONFIG_TARGET_EVB_RK3308=y
CONFIG_DEFAULT_DEVICE_TREE="rk3308-evb"
CONFIG_DEBUG_UART=y
@@ -55,6 +54,11 @@ CONFIG_USB_GADGET_DOWNLOAD=y
CONFIG_G_DNL_MANUFACTURER="Rockchip"
CONFIG_G_DNL_VENDOR_NUM=0x2207
CONFIG_G_DNL_PRODUCT_NUM=0x330d
+CONFIG_DM_VIDEO=y
+CONFIG_DISPLAY=y
+CONFIG_DRM_ROCKCHIP=y
+CONFIG_DRM_ROCKCHIP_RGB=y
+CONFIG_LCD=y
CONFIG_USE_TINY_PRINTF=y
CONFIG_SPL_TINY_MEMSET=y
CONFIG_ERRNO_STR=y

// rk3308
make rk3308_defconfig rk3308-display.config
// rv1103/rv1106
make rv1106_defconfig rv1106-display.config

./drivers/video/rockchip/

1d30bcc rockchip: resource: support parse "logo" partition picture

commit 07f987d8d495380787203e2bc2accd44100e6051
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Sun Dec 8 18:00:37 2019 +0800

    rockchip: resource: support parse logo_kernel.bmp from logo partition

    "logo" partition layout, not change order:

    |----------------------| 0x00
    | raw logo.bmp         |
    |----------------------| N*512-byte aligned
| raw logo_kernel.bmp  |
|----------------------|

N: the sector count of logo.bmp

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I2deba013d3963c99664c5bfd69693835a46ba48f

cat logo.bmp > logo.img && truncate -s %512 logo.img && cat logo_kernel.bmp >> logo.img

U-Boot 2017.09-g042c01531e-210512-dirty #cjh (May 14 2021 - 11:25:03 +0800)

Model: Rockchip RK3568 Evaluation Board
PreSerial: 2, raw, 0xfe660000
DRAM:  2 GiB
Sysmem: init
Relocation Offset: 7d34f000, fdt: 7b9f8758
Using default environment

dwmmc@fe2b0000: 1, dwmmc@fe2c0000: 2, sdhci@fe310000: 0
Bootdev(atags): mmc 0
MMC0: HS200, 200Mhz
PartType: EFI
boot mode: normal
FIT: No fdt blob
Android 11.0, Build 2021.4, v2
Found DTB in boot part
// 如下打印说明logo.img分区的图⽚被正确识别到。
LOGO: logo.bmp
LOGO: logo_kernel.bmp
DTB: rk-kernel.dtb
HASH(c): OK
......

&vp1 {
    xmirror-enable;
};

diff --git a/drivers/video/drm/rockchip_display.c b/drivers/video/drm/rockchip_display.c
index b1773ba6942..d1606db1ba5 100644
--- a/drivers/video/drm/rockchip_display.c
+++ b/drivers/video/drm/rockchip_display.c
@@ -52,7 +52,7 @@
 #define RK_BLK_SIZE 512
 #define BMP_PROCESSED_FLAG 8399
 #define BYTES_PER_PIXEL sizeof(uint32_t)
-#define MAX_IMAGE_BYTES (8 * 1024 * 1024)
+#define MAX_IMAGE_BYTES (32 * 1024 * 1024)

 DECLARE_GLOBAL_DATA_PTR;
 static LIST_HEAD(rockchip_display_list);
diff --git a/include/configs/rk3576_common.h b/include/configs/rk3576_common.h
index 16abba314c5..b4a8ec3b898 100644
--- a/include/configs/rk3576_common.h
+++ b/include/configs/rk3576_common.h
@@ -22,7 +22,7 @@
 #endif
 #define CONFIG_SPL_LOAD_FIT_ADDRESS    0x42000000

-#define CONFIG_SYS_MALLOC_LEN          (32 << 20)
+#define CONFIG_SYS_MALLOC_LEN          (32 << 21)
 #define CONFIG_SYS_CBSIZE              1024

 #ifdef CONFIG_SUPPORT_USBPLUG

./drivers/power/dvfs/dvfs-uclass.c
./include/dvfs.h
./cmd/dvfs.c

./drivers/power/dvfs/rockchip_wtemp_dvfs.c

// 执⾏⼀次dvfs策略
int dvfs_apply(struct udevice *dev);

// 如果存在repeat属性，当温度不在阈值范围内时循环执⾏dvfs策略
int dvfs_repeat_apply(struct udevice *dev);

CONFIG_DM_DVFS=y
CONFIG_ROCKCHIP_WTEMP_DVFS=y

CONFIG_DM_THERMAL=y
CONFIG_ROCKCHIP_THERMAL=y
CONFIG_USING_KERNEL_DTB=y

#ifdef CONFIG_DM_DVFS
#define CONFIG_PREBOOT  "dvfs repeat"
#else
#define CONFIG_PREBOOT
#endif

uboot-wide-temperature {
    compatible = "rockchip,uboot-wide-temperature";

    // 可选项。表⽰是否在U-Boot阶段触发cpu的最⾼/低温度阈值时让宽温驱动停⽌启动系统，
    // 且不断执⾏宽温处理策略，直到芯⽚温度回归到阈值范围内才继续启动系统。
    cpu,low-temp-repeat;
    cpu,high-temp-repeat;

    // 可选项。表⽰是否在U-Boot阶段触发dmc的最⾼/低温度阈值时让宽温驱动停⽌启动系统，
    // 且不断执⾏宽温处理策略，直到芯⽚温度回归到阈值范围内才继续启动系统。
    dmc,low-temp-repeat;
    dmc,high-temp-repeat;

    status = "okay";
};

// <NULL>表明没有指定低温阈值
DVFS: cpu: low=<NULL>'c, high=95'c, Vmax=1350000uV, tz_temp=88.0'c, h_repeat=0, l_repeat=0

DVFS: 90.352'c
DVFS: cpu(high): 600000000->408000000 Hz, 1050000->950000 uV

DVFS: 10.352'c
DVFS: cpu(low): 600000000->600000000 Hz, 1050000->1100000 uV

DVFS: dmc: ......
DVFS: dmc(high): ......
DVFS: dmc(low): ......

CONFIG_MISC
// 2选1，各平台的defconfig已默认使能对应配置。
CONFIG_ROCKCHIP_EFUSE
CONFIG_ROCKCHIP_OTP

CONFIG_SPL_MISC=y
CONFIG_SPL_ROCKCHIP_SECURE_OTP=y
// 禁⽤maskrom升级⽅式的⽀持，仅部分平台⽀持。
CONFIG_SPL_OTP_DISABLE_SD=y
CONFIG_SPL_OTP_DISABLE_USB=y
CONFIG_SPL_OTP_DISABLE_UART=y
CONFIG_SPL_OTP_DISABLE_SPI2APB=y
// 撤销已写⼊OTP的rsa公钥hash，仅部分平台⽀持。
CONFIG_SPL_REVOKE_PUB_KEY=y

// 有如下定义则说明⽀持禁⽤maskrom升级⽅式
#define OTP_DISABLE_UPGRADE_ADDR    0x154
#define OTP_DISABLE_USB_VAL     0x3
#define OTP_DISABLE_SD_VAL      0xc
#define OTP_DISABLE_UART_VAL        0x30
#define OTP_DISABLE_SPI2APB_VAL     0xc0
// 有如下定义则说明⽀持撤销已写⼊OTP的rsa公钥hash，默认仅⽀持撤销⼀次，需要⽀持多次撤销请联系RK⼯程师处理
#define OTP_NEXT_RSA_HASH_ADDR      0x1a0
#define OTP_NEXT_RSA_HASH_SIZE      32
#define OTP_RSA_HASH_REVOKE_VAL     0x3
#define OTP_RSA_HASH_REVOKE_ADDR    0x23
#define OTP_RSA_HASH_REVOKE_SIZE    1

./drivers/misc/misc-uclass.c

// non-secure:
./drivers/misc/rockchip-efuse.c
./drivers/misc/rockchip-otp.c
// secure，以RK3588为例：
./drivers/misc/rk3588-secure-otp.S

int misc_read(struct udevice *dev, int offset, void *buf, int size)
int misc_write(struct udevice *dev, int offset, void *buf, int size)
// ⾃带回读校验
int misc_otp_write_verify(struct udevice *dev, int offset, const uint8_t *write_buf, int
size)

otp: otp@ff210000 {
    compatible = "rockchip,rk3308-otp";
    reg = <0x0 0xff210000 0x0 0x4000>;
};

secure_otp: secure_otp@0xff2a8000 {
    compatible = "rockchip,rk3308-secure-otp";
    reg = <0x0 0xff2a8000 0x0 0x4000>;
    secure_conf = <0xff2b0004>;
    mask_addr = <0xff540000>;
};

char data[10] = {0};
struct udevice *dev;

/* retrieve the device */
ret = uclass_get_device_by_driver(UCLASS_MISC,
                  DM_GET_DRIVER(rockchip_otp), &dev);
if (ret) {
    printf("no misc-device found\n");
    return 0;
}

misc_read(dev, 0x10, &data, 10);

char data[10] = {0};
struct udevice *dev;
int i;

dev = misc_otp_get_device(OTP_S);
if (!dev)
    return -ENODEV;
for (i = 0; i < 10; i++)
    data[i] = i;

// 基础版本
misc_otp_write(dev, 0x10, &data, 10);
memset(data, 0, 10);
misc_otp_read(dev, 0x10, &data, 10);
// 优化版本
misc_otp_write_verify(dev, 0x10, &data, 10);

./net/*
./drivers/net/*
./drivers/net/phy/*

./drivers/net/designware.c
./drivers/net/dwc_eth_qos.c
./drivers/net/gmac_rockchip.c

// designware:
CONFIG_DM_ETH=y
CONFIG_ETH_DESIGNWARE=y
CONFIG_GMAC_ROCKCHIP=y
// dwc_eth_qos:
CONFIG_DM_ETH=y
CONFIG_DM_ETH_PHY=y
CONFIG_DWC_ETH_QOS=y
CONFIG_GMAC_ROCKCHIP=y

diff --git a/include/configs/rv1126_common.h b/include/configs/rv1126_common.h
index 933917f3f0..9d70795fb8 100644
--- a/include/configs/rv1126_common.h
+++ b/include/configs/rv1126_common.h
@@ -50,6 +50,7 @@
 #define CONFIG_SYS_SDRAM_BASE          0
 #define SDRAM_MAX_SIZE                 0xfd000000

+#define CONFIG_SYS_NONCACHED_MEMORY    (1 << 20)       /* 1 MiB */
 #ifndef CONFIG_SPL_BUILD

Command line interface  ---> Network commands  --->

[*] bootp, tftpboot
[ ] tftp put
[ ] tftp download and bootm
[ ] tftp download and flash
[ ] tftpsrv
[ ] rarpboot
-*- dhcp
-*- pxe
[ ] nfs
-*- mii
-*- ping
[ ] cdp
[ ] sntp
[ ] dns
[ ] linklocal
[ ] ethsw

void net_init(void);
int eth_register(struct eth_device *dev);
int phy_init(void);

int eth_register(struct eth_device *dev);
int phy_register(struct phy_driver *drv);

int eth_send(void *packet, int length);
int eth_rx(void);

int phy_read(struct phy_device *phydev, int devad, int regnum);
int phy_write(struct phy_device *phydev, int devad, int regnum, u16 val);

&gmac {
    phy-mode = "rgmii";
    clock_in_out = "input";

    snps,reset-gpio = <&gpio3 RK_PA0 GPIO_ACTIVE_LOW>;
    snps,reset-active-low;
    /* Reset time is 20ms, 100ms for rtl8211f */
    snps,reset-delays-us = <0 20000 100000>;

    assigned-clocks = <&cru CLK_GMAC_SRC>, <&cru CLK_GMAC_TX_RX>, <&cru
CLK_GMAC_ETHERNET_OUT>;
    assigned-clock-parents = <&cru CLK_GMAC_SRC_M1>, <&cru RGMII_MODE_CLK>;
    assigned-clock-rates = <125000000>, <0>, <25000000>;

    pinctrl-names = "default";
    pinctrl-0 = <&rgmiim1_pins &clk_out_ethernetm1_pins>;

    tx_delay = <0x2a>;
    rx_delay = <0x1a>;

    phy-handle = <&phy>;
    status = "okay";
};

Usage:
dhcp [loadAddress] [[hostIPaddr:]bootfilename]

=> dhcp 0x20000000 192.168.0.100:kernel.img
ethernet@ffc40000 Waiting for PHY auto negotiation to complete. done
BOOTP broadcast 1
DHCP client bound to address 192.168.0.106 (2 ms)
Using ethernet@ffc40000 device
TFTP from server 192.168.0.100; our IP address is 192.168.0.106
Filename 'kernel.img'.
Load address: 0x20000000
Loading: #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         ###############################################################
         1.5 MiB/s
done
Bytes transferred = 19054084 (122be04 hex)

=> ping 192.168.0.1
ethernet@ffc40000 Waiting for PHY auto negotiation to complete. done
Using ethernet@ffc40000 device
host 192.168.0.1 is alive

Usage:
tftp [loadAddress] [[hostIPaddr:]bootfilename]

=> setenv ipaddr 192.168.1.101
=> setenv serverip 192.168.1.100

=> tftp kernel.img 0x20000000
ethernet@ffc40000 Waiting for PHY auto negotiation to complete. done
Using ethernet@ffc40000 device
TFTP from server 192.168.1.100; our IP address is 192.168.1.101
Filename 'kernel.img'.
Load address: 0x20000000
Loading: #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################
         12.2 MiB/s
done
Bytes transferred = 20275220 (1356014 hex)

CONFIG_DM_GPIO
CONFIG_ROCKCHIP_GPIO

./drivers/gpio/gpio-uclass.c

./drivers/gpio/rk_gpio.c

// 申请/释放GPIO
int gpio_request_by_name(struct udevice *dev, const char *list_name,
                         int index, struct gpio_desc *desc, int flags);
int gpio_request_by_name_nodev(ofnode node, const char *list_name, int index,
                               struct gpio_desc *desc, int flags);
int gpio_request_list_by_name(struct udevice *dev, const char *list_name,
                              struct gpio_desc *desc_list, int max_count, int flags);
int gpio_request_list_by_name_nodev(ofnode node, const char *list_name,
                                    struct gpio_desc *desc_list, int max_count,
                                    int flags);
int dm_gpio_free(struct udevice *dev, struct gpio_desc *desc)

// 配置GPIO⽅向。@flags：GPIOD_IS_OUT（输出）和 GPIOD_IS_IN（输⼊）
int dm_gpio_set_dir_flags(struct gpio_desc *desc, ulong flags);

// 设置/获取GPIO电平
int dm_gpio_get_value(const struct gpio_desc *desc)
int dm_gpio_set_value(const struct gpio_desc *desc, int value)

int gpio_request(unsigned gpio, const char *label)
int gpio_free(unsigned gpio)
int gpio_direction_input(unsigned gpio)
int gpio_direction_output(unsigned gpio, int value)
int gpio_get_value(unsigned gpio)
int gpio_set_value(unsigned gpio, int value)

gpio0_a7 = (0 * 32) + (0 * 8) + 7 = 7
gpio1_b6 = (1 * 32) + (1 * 8) + 6 = 46
gpio3_c2 = (3 * 32) + (2 * 8) + 2 = 114

CONFIG_IRQ
CONFIG_GICV2
CONFIG_GICV3

./drivers/irq/irq-gpio-switch.c
./drivers/irq/irq-gpio.c
./drivers/irq/irq-generic.c
./drivers/irq/irq-gic.c
./drivers/irq/virq.c
./include/irq-generic.h

// CPU本地中断开关
void enable_interrupts(void);
int disable_interrupts(void);

// GPIO转换成中断号
int gpio_to_irq(struct gpio_desc *gpio);
int phandle_gpio_to_irq(u32 gpio_phandle, u32 pin);
int hard_gpio_to_irq(unsigned gpio);

// 注册/释放中断回调
void irq_install_handler(int irq, interrupt_handler_t *handler, void *data);
void irq_free_handler(int irq);

// 使能/关闭中断
int irq_handler_enable(int irq);
int irq_handler_disable(int irq);

// 中断触发类型
int irq_set_irq_type(int irq, unsigned int type);

// 此⽅法可以动态解析dts配置，⽐较灵活、常⽤。
int gpio_to_irq(struct gpio_desc *gpio);

battery {
    compatible = "battery,rk817";
    ......
    dc_det_gpio = <&gpio2 7 GPIO_ACTIVE_LOW>;
    ......
};
struct gpio_desc dc_det;
int ret, irq;

ret = gpio_request_by_name_nodev(dev_ofnode(dev), "dc_det_gpio", 0,
                                 &dc_det, GPIOD_IS_IN);
// 为了⽰例简单，省去返回值判断
if (!ret) {
    irq = gpio_to_irq(&dc_det);
    irq_install_handler(irq, ...);
    irq_set_irq_type(irq, IRQ_TYPE_EDGE_FALLING);
    irq_handler_enable(irq);
}

// 此⽅法可以动态解析dts配置，⽐较灵活、常⽤。
int phandle_gpio_to_irq(u32 gpio_phandle, u32 pin);

rk817: pmic@20 {
    compatible = "rockchip,rk817";
    reg = <0x20>;
    ......
    interrupt-parent = <&gpio0>;             // "&gpio0": 指向gpio0节点的phandle；
    interrupts = <7 IRQ_TYPE_LEVEL_LOW>;     // "7": pin脚；
    ......
};
u32 interrupt[2], phandle;
int irq, ret;

phandle = dev_read_u32_default(dev->parent, "interrupt-parent", -1);
if (phandle < 0) {
    printf("failed get 'interrupt-parent', ret=%d\n", phandle);
    return phandle;
}

ret = dev_read_u32_array(dev->parent, "interrupts", interrupt, 2);
if (ret) {
    printf("failed get 'interrupt', ret=%d\n", ret);
    return ret;
}

// 为了⽰例简单，省去返回值判断
irq = phandle_gpio_to_irq(phandle, interrupt[0]);
irq_install_handler(irq, pwrkey_irq_handler, dev);
irq_set_irq_type(irq, IRQ_TYPE_EDGE_FALLING);
irq_handler_enable(irq);

// 此⽅法直接强制指定 gpio，传⼊的 gpio 必须通过特殊的宏来声明才⾏，不够灵活，不建议使⽤。
int hard_gpio_to_irq(unsigned gpio);

int gpio0_a0, irq;

// 为了⽰例简单，省去返回值判断
gpio0_a0 = RK_IRQ_GPIO(RK_GPIO0, RK_PA0);
irq = hard_gpio_to_irq(gpio0_a0);
irq_install_handler(irq, ...);
irq_handler_enable(irq);

CONFIG_DM_I2C
CONFIG_SYS_I2C_ROCKCHIP

./drivers/i2c/i2c-uclass.c

./drivers/i2c/rk_i2c.c
./drivers/i2c/i2c-gpio.c    // gpio模拟i2c通讯，⽬前⽤不到

// i2c 读写
int dm_i2c_read(struct udevice *dev, uint offset, uint8_t *buffer, int len)
int dm_i2c_write(struct udevice *dev, uint offset, const uint8_t *buffer, int len)

// 对上⾯接⼝的封装
int dm_i2c_reg_read(struct udevice *dev, uint offset)
int dm_i2c_reg_write(struct udevice *dev, uint offset, unsigned int val);

CONFIG_IO_DOMAIN
CONFIG_ROCKCHIP_IO_DOMAIN

./drivers/power/io-domain/io-domain-uclass.c

./drivers/power/io-domain/rockchip-io-domain.c

void io_domain_init(void)

CONFIG_DM_KEY
CONFIG_RK8XX_PWRKEY
CONFIG_ADC_KEY
CONFIG_GPIO_KEY
CONFIG_RK_KEY

./include/dt-bindings/input/linux-event-codes.h
./drivers/input/key-uclass.c
./include/key.h

./drivers/input/rk8xx_pwrkey.c    // ⽀持PMIC的pwrkey(RK805/RK809/RK816/RK817)
./drivers/input/rk_key.c          // ⽀持compatible = "rockchip,key"
./drivers/input/gpio_key.c        // ⽀持compatible = "gpio-keys"
./drivers/input/adc_key.c         // ⽀持compatible = "adc-keys"

int key_read(int code)

/include/dt-bindings/input/linux-event-codes.h

enum key_state {
    KEY_PRESS_NONE,      // ⾮完整的短按（没有释放按键）或⾮完整⻓按（按下时间不够⻓）；
    KEY_PRESS_DOWN,      // ⼀次完整的短按（按下=>释放）；
    KEY_PRESS_LONG_DOWN, // ⼀次完整的⻓按（可以不释放）；
    KEY_NOT_EXIST,       // 按键不存在
};

#define KEY_LONG_DOWN_MS    2000

int ret;

ret = key_read(KEY_VOLUMEUP);
...

CONFIG_LED_GPIO

drivers/led/led-uclass // 默认编译

drivers/led/led_gpio.c // ⽀持 compatible = "gpio-leds"

// 获取led device
int led_get_by_label(const char *label, struct udevice **devp);
// 设置/获取led状态
int led_set_state(struct udevice *dev, enum led_state_t state);
enum led_state_t led_get_state(struct udevice *dev);
// 忽略，⽬前未做底层驱动实现
int led_set_period(struct udevice *dev, int period_ms);

leds {
    compatible = "gpio-leds";
    status = "okay";

    blue-led {
        gpios = <&gpio2 RK_PA1 GPIO_ACTIVE_LOW>;
        label = "battery_full";
        default-state = "off";
    };

    green-led {
        gpios = <&gpio2 RK_PA0 GPIO_ACTIVE_LOW>;
        label = "greenled";
        default-state = "off";
    };

    ......
};

CONFIG_MTD=y
CONFIG_CMD_MTD=y

struct mtd_info *get_mtd_device_nm(const char *name);
int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char
*buf);
int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);

#include <mtd.h>

#define MTD_SPINOR_NAME     "nor0"

static int mtd_demo(void)
{
    char *mtd_name = MTD_SPINOR_NAME;
    struct mtd_info *mtd;
    size_t retlen, off, size;
    u_char *des_buf;
    int ret;

    mtd = get_mtd_device_nm(mtd_name);
    if (IS_ERR_OR_NULL(mtd)) {
        printf("MTD device %s not found, ret %ld\n",
               mtd_name, PTR_ERR(mtd));
        return CMD_RET_FAILURE;
    }

    des_buf = (u_char *)0x4000000;

    off = 0x4000000;
    size = 0x800;

    ret = mtd_read(mtd, off, size, &retlen, des_buf);
    if (ret || size != retlen) {
        pr_err("mtd read fail, ret=%d retlen=%ld size=%ld\n", ret, retlen, size);
    }

    return ret;
}

// MTD驱动
CONFIG_MTD=y
CONFIG_CMD_MTDPARTS=y
CONFIG_MTD_DEVICE=y

// MTD block设备驱动
CONFIG_CMD_MTD_BLK=y
CONFIG_MTD_BLK=y

// 其他nand设备驱动config
......

CONFIG_MTD=y
CONFIG_CMD_MTDPARTS=y
CONFIG_MTD_DEVICE=y
CONFIG_SPL_MTD_SUPPORT=y

// 其他nand设备驱动config
......

drivers/mtd/mtd-uclass.c
drivers/mtd/mtdcore.c
drivers/mtd/mtd_uboot.c
drivers/mtd/mtd_blk.c

unsigned long blk_dread(struct blk_desc *block_dev, lbaint_t start,
                        lbaint_t blkcnt, void *buffer)
unsigned long blk_dwrite(struct blk_desc *block_dev, lbaint_t start,
                        lbaint_t blkcnt, const void *buffer)

// 总使能
CONFIG_OPTEE_CLIENT

// 旧平台使⽤，如 RK312x、RK322x、RK3288、RK3228H、RK3368、RK3399
CONFIG_OPTEE_V1
// 新平台使⽤，如 RK3326、RK3308
CONFIG_OPTEE_V2
// 当 eMMC 的 RPMB 不能⽤时必须开启此配置，即启⽤security分区！
CONFIG_OPTEE_ALWAYS_USE_SECURITY_PARTITION

lib/optee_clientApi/

trusty_base_write_security_data()
trusty_base_read_security_data()
trusty_read_vbootkey_hash()
trusty_write_vbootkey_hash()
trusty_read_vbootkey_enable_flag()
trusty_read_attribute_hash()
trusty_write_attribute_hash()
trusty_write_oem_otp_key()
trusty_oem_otp_key_is_written()
trusty_set_oem_hr_otp_read_lock()
trusty_oem_otp_key_cipher()
trusty_read_oem_ns_otp()
trusty_write_oem_ns_otp()
trusty_write_ta_encryption_key()
trusty_ta_encryption_key_is_written()
trusty_write_oem_encrypt_data()
trusty_oem_encrypt_data_is_written()
trusty_check_security_level_flag()
trusty_write_oem_huk()

uint32_t trusty_base_write_security_data(char *filename,
                        uint32_t filename_size,
                        uint8_t *data,
                        uint32_t data_size)

uint32_t trusty_base_read_security_data(char *filename,
                           uint32_t filename_size,
                           uint8_t *data,
                           uint32_t data_size)

uint32_t trusty_read_vbootkey_hash(uint32_t *buf, uint32_t length);

uint32_t trusty_write_vbootkey_hash(uint32_t *buf, uint32_t length);

uint32_t trusty_read_vbootkey_enable_flag(uint8_t *flag);

uint32_t trusty_read_attribute_hash(uint32_t *buf, uint32_t length)

uint32_t trusty_write_attribute_hash(uint32_t *buf, uint32_t length)

uint32_t trusty_write_oem_otp_key(enum RK_OEM_OTP_KEYID key_id,
                                  uint8_t *byte_buf,
                                  uint32_t byte_len);

uint32_t trusty_oem_otp_key_is_written(enum RK_OEM_OTP_KEYID key_id, uint8_t *value);

uint32_t trusty_set_oem_hr_otp_read_lock(enum RK_OEM_OTP_KEYID key_id);

uint32_t trusty_oem_otp_key_cipher(enum RK_OEM_OTP_KEYID key_id,
                                   rk_cipher_config *config,
                                   uint32_t src_phys_addr,
                                   uint32_t dst_phys_addr,
                                   uint32_t len);

uint32_t trusty_read_oem_ns_otp(uint32_t byte_off, uint8_t *byte_buf, uint32_t byte_len)

uint32_t trusty_write_oem_ns_otp(uint32_t byte_off, uint8_t *byte_buf, uint32_t byte_len)

uint32_t trusty_write_ta_encryption_key(uint32_t *buf, uint32_t length)

uint32_t trusty_ta_encryption_key_is_written(uint8_t *value)

uint32_t trusty_write_oem_encrypt_data(uint32_t *buf, uint32_t length)

uint32_t trusty_oem_encrypt_data_is_written(uint8_t *value)

uint32_t trusty_check_security_level_flag(uint8_t flag)

uint32_t trusty_write_oem_huk(uint32_t *buf, uint32_t length)

=> mmc testsecurestorage

"TEEC: Could not find device"

"TEEC: Could not find security partition"

"TEEC: verify [%d] fail, cleanning ...."

"TEEC: Not enough space available in secure storage !"

./drivers/pci/*
./drivers/phy/*

drivers/pci/pcie_dw_rockchip.c
drivers/phy/phy-rockchip-snps-pcie3.c
drivers/phy/phy-rockchip-naneng-combphy.c

CONFIG_DM_REGULATOR_GPIO=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_PCI=y
CONFIG_DM_PCI=y
CONFIG_DM_PCI_COMPAT=y
CONFIG_PCI_PNP=y
CONFIG_PCIE_DW_ROCKCHIP=y
CONFIG_PHY_ROCKCHIP_SNPS_PCIE3=y
CONFIG_PHY_ROCKCHIP_NANENG_COMBOPHY=y
CONFIG_PHY=y
CONFIG_CMD_PCI=y
//添加NVMe⽀持
CONFIG_NVME=y
CONFIG_CMD_NVME=y
//添加PCIe转USB⽀持
CONFIG_USB_XHCI_PCI=y
//添加Embedded DTB ⽀持, 增加Embedded DTB ⽀持后镜像⼤⼩会变⼤
CONFIG_EMBED_KERNEL_DTB_ALWAYS=y
CONFIG_SPL_FIT_IMAGE_KB=2560

diff --git a/arch/arm/dts/rk3588-u-boot.dtsi b/arch/arm/dts/rk3588-u-boot.dtsi
index 3fe8054aac..a8e2defbad 100644
--- a/arch/arm/dts/rk3588-u-boot.dtsi
+++ b/arch/arm/dts/rk3588-u-boot.dtsi
@@ -22,6 +22,28 @@
                compatible = "rockchip,rk3588-secure-otp";
                reg = <0x0 0xfe3a0000 0x0 0x4000>;
        };
+
+       vcc12v_dcin: vcc12v-dcin {
+               u-boot,dm-pre-reloc;
+               compatible = "regulator-fixed";
+               regulator-name = "vcc12v_dcin";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <12000000>;
+               regulator-max-microvolt = <12000000>;
+       };
+
+       vcc3v3_pcie30: vcc3v3-pcie30 {
+               u-boot,dm-pre-reloc;
+               compatible = "regulator-fixed";
+               regulator-name = "vcc3v3_pcie30";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               enable-active-high;
+               gpio = <&gpio3 RK_PC3 GPIO_ACTIVE_HIGH>;
+               startup-delay-us = <5000>;
+               vin-supply = <&vcc12v_dcin>;
+       };
 };

 &firmware {
@@ -117,6 +139,19 @@
        status = "okay";
 };

+&pcie30phy {
+       u-boot,dm-pre-reloc;
+       rockchip,pcie30-phymode = <PHY_MODE_PCIE_AGGREGATION>;
+       status = "okay";
+};
+
+&pcie3x4 {
+       u-boot,dm-pre-reloc;
+       reset-gpios = <&gpio4 RK_PB6 GPIO_ACTIVE_HIGH>;
+       vpcie3v3-supply = <&vcc3v3_pcie30>;
+       status = "okay";
+};
+
 &uart2 {
        u-boot,dm-spl;
        status = "okay";

From b58a47956bbd03de0fcef572fa06cdeea974e2a9 Mon Sep 17 00:00:00 2001
From: Jon Lin <jon.lin@rock-chips.com>
Date: Thu, 9 Mar 2023 15:29:37 +0800
Subject: [PATCH] TEST: uboot: rk3566_evb2_v11: nvme

Change-Id: I87b3786a433691f3c385460fa8636291bce8ed9a
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
---
 arch/arm/dts/rk3568-u-boot.dtsi | 43 +++++++++++++++++++++++++++++++++
 configs/rk3568_defconfig        | 13 ++++++++++
 2 files changed, 56 insertions(+)

diff --git a/arch/arm/dts/rk3568-u-boot.dtsi b/arch/arm/dts/rk3568-u-boot.dtsi
index a0678e35db..1ab8ea4436 100644
--- a/arch/arm/dts/rk3568-u-boot.dtsi
+++ b/arch/arm/dts/rk3568-u-boot.dtsi
@@ -26,6 +26,27 @@
        cru_rst_addr = <0xfdd20470>;
        u-boot,dm-spl;
    };
+
+   dc_12v: dc-12v {
+       compatible = "regulator-fixed";
+       regulator-name = "dc_12v";
+       regulator-always-on;
+       regulator-boot-on;
+       regulator-min-microvolt = <12000000>;
+       regulator-max-microvolt = <12000000>;
+   };
+
+   vcc3v3_pcie: gpio-regulator {
+       u-boot,dm-pre-reloc;
+       compatible = "regulator-fixed";
+       regulator-name = "vcc3v3_pcie";
+       regulator-min-microvolt = <3300000>;
+       regulator-max-microvolt = <3300000>;
+       enable-active-high;
+       gpio = <&gpio0 RK_PC2 GPIO_ACTIVE_HIGH>;
+       startup-delay-us = <5000>;
+       vin-supply = <&dc_12v>;
+   };
 };

 &psci {
@@ -386,6 +407,28 @@
    status = "okay";
 };

+&pipegrf {
+   u-boot,dm-pre-reloc;
+   status = "okay";
+};
+
+&pipe_phy_grf2 {
+   u-boot,dm-pre-reloc;
+   status = "okay";
+};
+
+&combphy2_psq {
+   u-boot,dm-pre-reloc;
+   status = "okay";
+};
+
+&pcie2x1 {
+   u-boot,dm-pre-reloc;
+   reset-gpios = <&gpio1 RK_PB2 GPIO_ACTIVE_HIGH>;
+   vpcie3v3-supply = <&vcc3v3_pcie>;
+   status = "okay";
+};
+
 &pinctrl {
    u-boot,dm-pre-reloc;
    status = "okay";

CONFIG_EMBED_KERNEL_DTB=y
CONFIG_EMBED_KERNEL_DTB_ALWAYS=y
CONFIG_EMBED_KERNEL_DTB_PATH=”./dts/rk⽬标芯⽚-⽬标设备.dtb“  # 例如
CONFIG_EMBED_KERNEL_DTB_PATH="dts/rk3588-evb1.dtb"

diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c
index 979598ff7b..87d131e118 100644
--- a/arch/arm/mach-rockchip/board.c
+++ b/arch/arm/mach-rockchip/board.c
@@ -537,6 +537,11 @@ int board_init(void)
        io_domain_init();
 #endif
        set_armclk_rate();
+
+#ifdef CONFIG_PCI
+       pci_init();
+#endif
+
 #ifdef CONFIG_DM_DVFS
        dvfs_init(true);
 #endif

## Chapter-5 PCI 枚举，其中 CFG 映射的内存地址为 0x00000000f0000000
=> pci enum
pcie@fe150000: PCIe Linking... LTSSM is 0x1
pcie@fe150000: PCIe Linking... LTSSM is 0x6
pcie@fe150000: PCIe Linking... LTSSM is 0x4
pcie@fe150000: PCIe Linking... LTSSM is 0x210023
pcie@fe150000: PCIe Link up, LTSSM is 0x230011
pcie@fe150000: PCIE-0: Link up (Gen3-x2, Bus0)
pcie@fe150000: invalid flags type!
pcie@fe150000: Config space: [0x00000000f0000000 - 0x00000000f0100000, size 0x100000]

## Chapter-5 扫描所有设备
=> pci
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x1d87     0x3588     Bridge device           0x04
01.00.00   0x144d     0xa809     Mass storage controller 0x08

## Chapter-5 显⽰ bus 01 设备详细信息
=> pci 01 long
Scanning PCI devices on bus 1

Found PCI device 01.00.00:
  vendor ID =                   0x144d
  device ID =                   0xa809
  command register ID =         0x0006
  status register =             0x0010
  revision ID =                 0x00
  class code =                  0x01 (Mass storage controller)
  sub class code =              0x08
  programming interface =       0x02
  cache line =                  0x08
  latency time =                0x00
  header type =                 0x00
  BIST =                        0x00
  base address 0 =              0xf0300004
  base address 1 =              0x00000000
  base address 2 =              0x00000000
  base address 3 =              0x00000000
  base address 4 =              0x00000000
  base address 5 =              0x00000000
  cardBus CIS pointer =         0x00000000
  sub system vendor ID =        0x144d
  sub system ID =               0xa801
  expansion ROM base address =  0x00000000
  interrupt line =              0xff
  interrupt pin =               0x01
  min Grant =                   0x00
  max Latency =                 0x00
## Chapter-5 显⽰ bdf 01.00.00 设备 bar 映射地址，⽰例代码显⽰ bar0 映射内存地址 0xf0300000，size
0x4000，
=> pci bar 01.00.00
ID   Base                Size                Width  Type
----------------------------------------------------------
 0   0x00000000f0300000  0x0000000000004000  64     MEM

## Chapter-5 读取 bdf 01.00.00 设备 CFG 空间信息
=> pci d.w 01.00.00 0
00000000: 144d a809 0006 0010 0200 0108 0008 0000
00000010: 0004 f030 0000 0000 0000 0000 0000 0000
00000020: 0000 0000 0000 0000 0000 0000 144d a801
00000030: 0000 0000 0040 0000 0000 0000 01ff 0000

## Chapter-5 AER功能，⽤于读取指定设备的AER寄存器信息，输出格式与Linux lspci⼯具⼀致。
=> pci aer 01.00.0
    AER Capability found at offset 0x40
    UESta: DLP-- SDES-- TLP-- FCP-- CmpltTO-- CmpltAbrt-- UnxCmplt-- RxOF-- MalfTLP-- ECRC--
UnsupReq-- ACSViol--
    UEMsk: DLP-- SDES-- TLP-- FCP-- CmpltTO-- CmpltAbrt-- UnxCmplt-- RxOF-- MalfTLP-- ECRC--
UnsupReq-- ACSViol--
    UESvrt: DLP+ SDES- TLP+ FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC-
UnsupReq- ACSViol-
    CESta: RxErr-- BadTLP-- BadDLLP-- Rollover-- Timeout-- NonFatalErr--
    CEMsk: RxErr-- BadTLP-- BadDLLP-- Rollover-- Timeout-- NonFatalErr--
    AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-

## Chapter-5 retrain link功能，⽤于链路重新建⽴
=> pci x 01.00.0
    Retrain triggered for device 0001:0000
    Link Status for device 0001:0000: 0x1022
    Speed: Gen3
    Width: x2
    Link Up: Yes

## Chapter-5 FLR(Function Level Reset)功能，⽤于复位外设功能
=> pci flr 01.00.0
    FLR completed and state restored for device 01:00.0

## Chapter-5 发起nvme 扫描
=> nvme scan

## Chapter-5 罗列nvme设备详细信息
=> nvme details
    Blk device 0: Optional Admin Command Support:
            Namespace Management/Attachment: no
            Firmware Commit/Image download: yes
            Format NVM: yes
            Security Send/Receive: no
    Blk device 0: Optional NVM Command Support:
            Reservation: yes
            Save/Select field in the Set/Get features: yes
            Write Zeroes: yes
            Dataset Management: yes
            Write Uncorrectable: yes
    Blk device 0: Format NVM Attributes:
            Support Cryptographic Erase: No
            Support erase a particular namespace: Yes
            Support format a particular namespace: Yes
    Blk device 0: LBA Format Support:
    Blk device 0: End-to-End DataProtect Capabilities:
            As last eight bytes: No
            As first eight bytes: No
            Support Type3: No
            Support Type2: No
            Support Type1: No
    Blk device 0: Metadata capabilities:
            As part of a separate buffer: No
            As part of an extended data LBA: No

## Chapter-5 看到⼀个256GB的NVMe, 如果看不到容量，需要拔出设备确保完全掉电，重来。
=> nvme info
    Device 0: Vendor: 0x144d Rev: EXD7201Q Prod: S444NA0M384608
                Type: Hard Disk
                Capacity: 244198.3 MB = 238.4 GB (500118192 x 512)

## Chapter-5 选择ID为0的nvme设备
=> nvme device 0

Device 0: Vendor: 0x144d Rev: EXD7201Q Prod: S444NA0M384608
            Type: Hard Disk
            Capacity: 244198.3 MB = 238.4 GB (500118192 x 512)
... is now current device

## Chapter-5 将0x40000000内存设置位0x55aa55aa
=> md.l 0x40000000 1
    40000000: d08ec033                               3...
=> mw.l 0x40000000 0x55aa55aa
=> md.l 0x40000000 1
    40000000: 55aa55aa                               .U.U

## Chapter-5 从0x40000000内存开始取1个block数据，写⼊NVME的LBA 0地址
=> nvme write 0x40000000 0x0 0x1

    nvme write: device 0 block # 0, count 1 ... 1 blocks written: OK

## Chapter-5 检查下0x44000000内存，确认原始数据
=> md.l 0x44000000 1
    44000000: ffffffff                               ....

## Chapter-5 从NVMe的LBA 0地址，读取1个block数据，写⼊内存0x44000000
=> nvme read 0x44000000 0x0 0x1
    nvme read: device 0 block # 0, count 1 ... 1 blocks read: OK

## Chapter-5 确认0x44000000内存数据是从NVMe读回来的
=> md.l 0x44000000 1
    44000000: 55aa55aa

## Chapter-5 从0地址开始，擦除⼀个block
=> nvme erase 0x0 0x1
    nvme erase: device 0 block # 0, count 1 ... 1 blocks erased: OK

## Chapter-5 从NVMe的LBA 0地址，读取1个block数据，写⼊内存0x44000000
=> nvme read 0x44000000 0x0 0x1
    nvme read: device 0 block # 0, count 1 ... 1 blocks read: OK

## Chapter-5 确认0x44000000内存数据是从NVMe读回来的
=> md.l 0x44000000 0x200        #NVMe第⼀个block的数据已经清除了
    44000000: 00000000 00000000 00000000 00000000    ................
    44000010: 00000000 00000000 00000000 00000000    ................
    44000020: 00000000 00000000 00000000 00000000    ................
    ...

## Chapter-5 使⽤write zero功能清空0x100地址开始的⼀个block数据
=> nvme write_zeroes 0x100 0x1
    nvme write_zeroes: device 0 block # 0x100, count 1 ... 1 blocks write_zeroed: OK

=> pci
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x1d87     0x3588     Bridge device           0x04
01.00.00   0x1d87     0x356a     ???                     0x00
=> pci 1 long
Scanning PCI devices on bus 1

Found PCI device 01.00.00:
  vendor ID =                   0x1d87
  device ID =                   0x356a
  command register ID =         0x0006
  status register =             0x0010
  revision ID =                 0x01
  class code =                  0x12 (???)
  sub class code =              0x00
  programming interface =       0x00
  cache line =                  0x08
  latency time =                0x00
  header type =                 0x00
  BIST =                        0x00
  base address 0 =              0xf0400000    # BAR0 映射的 CPU 地址，由于 RK PCIe 采⽤ CPU-BUS
⼀⼀映射，所以 bus addr 相同值
  base address 1 =              0x00000000
  base address 2 =              0x0400000c
  base address 3 =              0x00000000
  base address 4 =              0xf0800000
  base address 5 =              0x00000000
  cardBus CIS pointer =         0x00000000
  sub system vendor ID =        0x0000
  sub system ID =               0x0000
  expansion ROM base address =  0x00000000
  interrupt line =              0xff
  interrupt pin =               0x01
  min Grant =                   0x00
  max Latency =                 0x00
=>

## Chapter-5 BAR CPU 访问，PIO 访问
md.l 0xf0400000 0x40

## Chapter-5 DMA read
mw.l 0x3c000000 0xffffffff
dcache flush 0x3c000000 0x100      # flush
mw.l 0xf538002c 0x1
mw.l 0xf5380300 0x4000008
mw.l 0xf5380304 0x0
mw.l 0xf5380308 0x100
mw.l 0xf538030c 0xf0400000
mw.l 0xf5380310 0x0
mw.l 0xf5380314 0x3c000000
mw.l 0xf5380318 0x0
mw.l 0xf5380030 0x0
dcache invalidate 0x3c000000 0x100  # invalidate
md.l 0x3c000000

## Chapter-5 DMA write
mw.l 0x3c000000 0xffffffff
dcache flush 0x3c000000 0x100 # flush
mw.l 0xf538000c 0x1
mw.l 0xf5380200 0x4000008
mw.l 0xf5380204 0x0
mw.l 0xf5380208 0x100
mw.l 0xf538020c 0x3c000000
mw.l 0xf5380210 0x0
mw.l 0xf5380214 0xf0400000
mw.l 0xf5380218 0x0
mw.l 0xf5380010 0x0
md.l 0x3c000000 0x40

commit b46a81a12dd4a1514a6522e33a1d16194f242d62
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Wed Sep 28 01:36:45 2022 +0000

    cmd: cache: Add flush/invalidate dcache range support

    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
    Change-Id: Id0e0cd9019072e8c557ebd2987b439057cb4ae3b

=> pci
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x1d87     0x356a     Bridge device           0x04
01.00.00   0x1d87     0x356a     ???                     0x00
=> pci 1 long
Scanning PCI devices on bus 1

Found PCI device 01.00.00:
  vendor ID =                   0x1d87
  device ID =                   0x356a
  command register ID =         0x0006
  status register =             0x0010
  revision ID =                 0x01
  class code =                  0x12 (???)
  sub class code =              0x00
  programming interface =       0x00
  cache line =                  0x08
  latency time =                0x00
  header type =                 0x00
  BIST =                        0x00
  base address 0 =              0xf0400000    # BAR0 映射的 CPU 地址，由于 RK PCIe 采⽤ CPU-BUS
⼀⼀映射，所以 bus addr 相同值
  base address 1 =              0x00000000
  base address 2 =              0x0400000c
  base address 3 =              0x00000000
  base address 4 =              0xf0800000
  base address 5 =              0x00000000
  cardBus CIS pointer =         0x00000000
  sub system vendor ID =        0x0000
  sub system ID =               0x0000
  expansion ROM base address =  0x00000000
  interrupt line =              0xff
  interrupt pin =               0x01
  min Grant =                   0x00
  max Latency =                 0x00
=>

## Chapter-5 BAR CPU 访问，PIO 访问
md.l 0xf0400000 0x40
## Chapter-5 DMA read
mw.l 0x3c000000 0xffffffff
dcache flush 0x3c000000 0x100      # flush
mw.l 0xf638002c 0x1
mw.l 0xf6380300 0x4000008
mw.l 0xf6380304 0x0
mw.l 0xf6380308 0x100
mw.l 0xf638030c 0xf0400000
mw.l 0xf6380310 0x0
mw.l 0xf6380314 0x3c000000
mw.l 0xf6380318 0x0
mw.l 0xf6380030 0x0
dcache invalidate 0x3c000000 0x100  # invalidate
md.l 0x3c000000

## Chapter-5 DMA write
mw.l 0x3c000000 0xffffffff
dcache flush 0x3c000000 0x100 # flush
mw.l 0xf638000c 0x1
mw.l 0xf6380200 0x4000008
mw.l 0xf6380204 0x0
mw.l 0xf6380208 0x100
mw.l 0xf638020c 0x3c000000
mw.l 0xf6380210 0x0
mw.l 0xf6380214 0xf0400000
mw.l 0xf6380218 0x0
mw.l 0xf6380010 0x0
md.l 0x3c000000 0x40

commit b46a81a12dd4a1514a6522e33a1d16194f242d62
Author: Joseph Chen <chenjh@rock-chips.com>
Date:   Wed Sep 28 01:36:45 2022 +0000

    cmd: cache: Add flush/invalidate dcache range support

    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
    Change-Id: Id0e0cd9019072e8c557ebd2987b439057cb4ae3b

pci display.l 20.00.00 0x80 1

Values:
0x0 (DISABLED): Disabled
0x1 (L0S_ENTRY_EN): L0s Entry Enabled
0x2 (L1_ENTRY_En): L1 Entry Enabled
0x3 (L0S_L1_ENTRY_EN): L0s and L1 Entry Enabled

## Chapter-5 RK3568 DMA read ca abort 信息
=> md.l 0xf63800b8 1
f63800b8: 00000100                               ....

CONFIG_PINCTRL_GENERIC
CONFIG_PINCTRL_ROCKCHIP

./drivers/pinctrl/pinctrl-uclass.c

./drivers/pinctrl/pinctrl-rockchip.c

int pinctrl_select_state(struct udevice *dev, const char *statename)    // 设置状态
int pinctrl_get_gpio_mux(struct udevice *dev, int banknum, int index)   // 获取状态

rk805/rk808/rk809/rk816/rk817/rk818

rk805/rk808/rk809/rk816/rk817/rk818/syr82x/tcs452x/fan53555/pwm/gpio/fixed

CONFIG_DM_PMIC
CONFIG_PMIC_CHILDREN
CONFIG_PMIC_RK8XX        // 适⽤于⽬前所有RK8XX系列芯⽚
CONFIG_DM_REGULATOR
CONFIG_REGULATOR_PWM
CONFIG_REGULATOR_RK8XX   // 适⽤于⽬前所有RK8XX系列芯⽚
CONFIG_REGULATOR_FAN53555

./drivers/power/pmic/pmic-uclass.c
./drivers/power/regulator/regulator-uclass.c

./drivers/power/pmic/rk8xx.c
./drivers/power/regulator/rk8xx.c
./drivers/power/regulator/fixed.c
./drivers/power/regulator/gpio-regulator.c
./drivers/power/regulator/pwm_regulator.c
./drivers/power/regulator/fan53555_regulator.c

// 获取regulator。 @platname：“regulator-name”指定的名字，如：vdd_arm、vdd_logic；
int regulator_get_by_platname(const char *platname, struct udevice **devp);

// 使能/关闭
int regulator_get_enable(struct udevice *dev);
int regulator_set_enable(struct udevice *dev, bool enable);
int regulator_set_suspend_enable(struct udevice *dev, bool enable);
int regulator_get_suspend_enable(struct udevice *dev);

// 配置/获取电压
int regulator_get_value(struct udevice *dev);
int regulator_set_value(struct udevice *dev, int uV);
int regulator_set_suspend_value(struct udevice *dev, int uV);
int regulator_get_suspend_value(struct udevice *dev);

vdd_arm: DCDC_REG1 {
    regulator-name = "vdd_arm";
    regulator-boot-on；                     // 必须配置
    regulator-min-microvolt = <712500>;
    regulator-max-microvolt = <1450000>;
    regulator-init-microvolt = <1100000>;   // 设置初始化电压为1.1v
    ......
};

vdd_arm: DCDC_REG1 {
    regulator-name = "vdd_arm";
    regulator-loader-ignore;// 仅对U-Boot阶段的regulator初始化有效，kernel⽆效
    ......
};

CONFIG_DM_RESET
CONFIG_RESET_ROCKCHIP

./drivers/reset/reset-uclass.c

./drivers/reset/reset-rockchip.c

// 获取reset句柄
int reset_get_by_index(struct udevice *dev, int index, struct reset_ctl *reset_ctl);
int reset_get_by_name(struct udevice *dev, const char *name,
                      struct reset_ctl *reset_ctl);
// 释放reset
int reset_free(struct reset_ctl *reset_ctl);
// 请求reset
int reset_request(struct reset_ctl *reset_ctl);
// 触发reset、释放reset
int reset_assert(struct reset_ctl *reset_ctl);
int reset_deassert(struct reset_ctl *reset_ctl);

struct reset_ctl reset_ctl;

ret = reset_get_by_name(dev, "mac-phy", &reset_ctl);
if (ret) {
    debug("reset_get_by_name() failed: %d\n", ret);
    return ret;
}

ret = reset_request(&reset_ctl);
if (ret)
    return ret;

ret = reset_assert(&reset_ctl);
if (ret)
    return ret;

......

ret = reset_deassert(&reset_ctl);
if (ret)
    return ret;

......

ret = reset_free(&reset_ctl);
if (ret)
    return ret;

// 格式：
reset-names = <name-string-list>
resets = <cru-phandle-list>

gmac2phy: ethernet@ff550000 {
    compatible = "rockchip,rk3328-gmac";
    ......

    // 指定reset属性
    reset-names = "stmmaceth", "mac-phy";
    resets = <&cru SRST_GMAC2PHY_A>, <&cru SRST_MACPHY>;
};

./drivers/rng/rng-uclass.c

./drivers/rng/rockchip_rng.c

CONFIG_DM_RNG=y
CONFIG_RNG_ROCKCHIP=y

// @buffer: 保存随机数输出
// @size: 随机数⻓度，单位：byte
int dm_rng_read(struct udevice *dev, void *buffer, size_t size)

compatible = "rockchip,cryptov1-rng";
compatible = "rockchip,cryptov2-rng";

./drivers/spi/spi-uclass.c

./drivers/spi/rk_spi.c

CONFIG_ROCKCHIP_SPI=y
CONFIG_CMD_SPI=y

// 初始化对应 SPI 总线
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, unsigned int max_hz,
unsigned int mode);

// 获取\释放总线
int spi_claim_bus(struct spi_slave *slave);
void spi_release_bus(struct spi_slave *slave);

// 常⽤读写接⼝
int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
                void *din, unsigned long flags);
int spi_write_then_read(struct spi_slave *slave, const u8 *opcode,
                        size_t n_opcode, const u8 *txbuf, u8 *rxbuf,
                        size_t n_buf);

&spi0 {
        u-boot,dm-pre-reloc;
        status = "okay";
};

static u32 spi_bus_test(int bus, int cs)
{
    struct spi_slave *spi_slave;
    u32 tx_data, rx_data;
    int ret;
#ifdef CONFIG_DM_SPI
    struct udevice *dev;
    char name[30], *str;

    snprintf(name, sizeof(name), "generic_%d:%d", bus, cs);
    str = strdup(name);
    if (!str)
        return -ENOMEM;
    ret = spi_get_bus_and_cs(bus, cs, 50000000, SPI_MODE_0, "spi_generic_drv", str, &dev,
&spi_slave);
    if (ret)
        return ret;
#else
    spi_slave = spi_setup_slave(bus, cs, 50000000, SPI_MODE_0);
    if (!spi_slave) {
        /*
         * Invalid bus 1 (err=-19) means that spi1 is disabled in dts
         * Invalid chip select 1:0 (err=-19) means that there is no dev under spi1 bus in
dts
         * check it in uboot dtb or kernel dtb(if is enabled)
         *
         * btw, spi_get_bus_and_cs support no sub dev operation but spi_setup_slave can't
         */
        return -ENODEV;
    }
#endif

    if (spi_claim_bus(spi_slave))
        return -ENODEV;

    tx_data = 0x12345678;
    ret = spi_xfer(spi_slave, 32, &tx_data, &rx_data, SPI_XFER_BEGIN | SPI_XFER_END);

    spi_release_bus(spi_slave);

    pr_err("%s succuss\n", __func__);

    return ret;
}

sspi 3:0.0 24 AAA           # bus3:cs0:mode0 传输⻓度为24bits 传输数据为 "AAA"

diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c
index 836b94a24ec..8aaa51b9e84 100644
--- a/drivers/spi/rk_spi.c
+++ b/drivers/spi/rk_spi.c
@@ -24,6 +24,8 @@

 DECLARE_GLOBAL_DATA_PTR;

+#undef _DEBUG
+#define _DEBUG 1
 /* Change to 1 to output registers at the start of each transaction */
 #define DEBUG_RK_SPI   0

=> sspi 0:0.0 24 AAA
rockchip_spi_ofdata_to_platdata: base=ff500000, max-frequency=50000000, deactivate_delay=0
rsd=0
rockchip_spi_probe: probe
rockchip_spi_probe: rate = 200000000        #控制器⼯作时钟
spi speed 50000000, div 4                   #io 时钟，io 时钟由控制器⼯作时钟 4 分频输出
rockchip_spi_xfer: dout=07fd640c, din=07fd63ec, len=3, flags=3
activate cs0
deactivate cs0
000000

CONFIG_RKNAND

./drivers/rknand/

CONFIG_RKFLASH

CONFIG_RKNANDC_NAND  /* ⼩容量并⼝Nand flash */
CONFIG_RKSFC_NOR     /* SPI Nor flash */
CONFIG_RKSFC_NAND    /* SPI Nand flash */

./drivers/rkflash/

CONFIG_MMC_DW=y
CONFIG_MMC_DW_ROCKCHIP=y
CONFIG_CMD_MMC=y

./drivers/mmc/

// MTD 驱动⽀持
CONFIG_MTD=y
CONFIG_CMD_MTD_BLK=y
CONFIG_SPL_MTD_SUPPORT=y
CONFIG_MTD_BLK=y
CONFIG_MTD_DEVICE=y

// spi nand 驱动⽀持
CONFIG_MTD_SPI_NAND=y
CONFIG_ROCKCHIP_SFC=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y

// nand 驱动⽀持
CONFIG_NAND=y
CONFIG_CMD_NAND=y
CONFIG_NAND_ROCKCHIP=y /* NandC v6 可根据 TRM NANDC->NANDC_NANDC_VER 寄存器确认，0x00000801 */
//CONFIG_NAND_ROCKCHIP_V9=y  /* NandC v9 可根据 TRM NANDC->NANDC_NANDC_VER 寄存器确认，
0x56393030, 例如：RK3326/PX30 为此版本 */
CONFIG_SPL_NAND_SUPPORT=y
CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
// nand page size需要按真实⼤⼩定义，如果使⽤容量⼤于等于512MB的NAND，⼀般需要配置为4096
#define CONFIG_SYS_NAND_PAGE_SIZE   2048

// spi nor 驱动⽀持
CONFIG_CMD_SF=y
CONFIG_CMD_SPI=y
CONFIG_SPI_FLASH=y
CONFIG_SF_DEFAULT_MODE=0x1
CONFIG_SF_DEFAULT_SPEED=50000000
CONFIG_SPI_FLASH_GIGADEVICE=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_SPI_FLASH_MTD=y
CONFIG_ROCKCHIP_SFC=y
CONFIG_SPL_SPI_SUPPORT=y
CONFIG_SPL_MTD_SUPPORT=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y

CONFIG_RKFLASH=n
CONFIG_RKNAND=n

./drivers/mtd/nand/raw          //SLC Nand 主控驱动及协议层
./drivers/mtd/nand/spi          //SPI Nand 协议层
./drivers/spi/rockchip_sfc.c    //SPI Flash 主控驱动
./drivers/mtd/spi               //SPI Nor 协议层

// 获取存储句柄
struct blk_desc *rockchip_get_bootdev(void)

// 访问接⼝
unsigned long blk_dread(struct blk_desc *block_dev, lbaint_t start,
                        lbaint_t blkcnt, void *buffer)
unsigned long blk_dwrite(struct blk_desc *block_dev, lbaint_t start,
                         lbaint_t blkcnt, const void *buffer)
unsigned long blk_derase(struct blk_desc *block_dev, lbaint_t start,
                         lbaint_t blkcnt)

// rkxxxx.dtsi配置
emmc: dwmmc@ff390000 {
    compatible = "rockchip,px30-dw-mshc", "rockchip,rk3288-dw-mshc";
    reg = <0x0 0xff390000 0x0 0x4000>;      // 控制器寄存器base address及⻓度
    max-frequency = <150000000>;            // eMMC普通模式时钟为50MHz,当配置为eMMC
                                            // HS200模式，该max-frequency⽣效
    clocks = <&cru HCLK_EMMC>, <&cru SCLK_EMMC>,
         <&cru SCLK_EMMC_DRV>, <&cru SCLK_EMMC_SAMPLE>;   // 控制器对应时钟编号
    clock-names = "biu", "ciu", "ciu-drv", "ciu-sample";  // 控制器时钟名
    fifo-depth = <0x100>;                                 // fifo深度，默认配置
    interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;        // 中断配置
    status = "disabled";
};

// rkxxxx-u-boot.dtsi
&emmc {
    u-boot,dm-pre-reloc;
    status = "okay";
}

// rkxxxx.dts
&emmc {
    bus-width = <8>;                   // 设备总线位宽
    cap-mmc-highspeed;                 // 标识此卡槽⽀持highspeed mmc
    mmc-hs200-1_8v;                    // ⽀持HS200
    supports-emmc;                     // 标识此插槽为eMMC功能，必须添加，否则⽆法初始化外设
    disable-wp;                        // 对于⽆物理WP管脚，需要配置
    non-removable;                     // 此项表⽰该插槽为不可移动设备。 此项为必须添加项
    num-slots = <1>;                   // 标识为第⼏插槽
    status = "okay";
};

&nandc0 {
    u-boot,dm-pre-reloc;
    status = "okay";
    #address-cells = <1>;
    #size-cells = <0>;

    nand@0 {
        u-boot,dm-pre-reloc;
        reg = <0>;
        nand-ecc-mode = "hw_syndrome";
        nand-ecc-strength = <16>;
        nand-ecc-step-size = <1024>;
    };
}

&sfc {
    u-boot,dm-pre-reloc;
    status = "okay";
    spi_nand: flash@0 {
        u-boot,dm-spl;
        compatible = "spi-nand";
        reg = <0>;
        spi-tx-bus-width = <1>;
        spi-rx-bus-width = <4>;
        spi-max-frequency = <96000000>;
    };
    spi_nor: flash@1 {
        u-boot,dm-spl;
        compatible = "jedec,spi-nor";
        reg = <0>;
        spi-tx-bus-width = <1>;
        spi-rx-bus-width = <4>;
        spi-max-frequency = <96000000>;
    };
};

diff --git a/drivers/spi/rockchip_sfc.c b/drivers/spi/rockchip_sfc.c
index 939b48e377c..62a425a29f4 100644
--- a/drivers/spi/rockchip_sfc.c
+++ b/drivers/spi/rockchip_sfc.c
@@ -790,7 +790,7 @@ static int rockchip_sfc_set_speed(struct udevice *bus, uint speed)
        sfc->cur_speed = speed;
        sfc->cur_real_speed = clk_get_rate(&sfc->clk);

-       dev_dbg(sfc->dev, "set_freq=%dHz real_freq=%dHz\n",
+       dev_err(sfc->dev, "set_freq=%dHz real_freq=%dHz\n",
                sfc->cur_speed, sfc->cur_real_speed);
 #else
        dev_dbg(sfc->dev, "sfc failed, CLK not support\n");

./drivers/thermal/thermal-uclass.c

./drivers/thermal/rockchip_thermal.c

CONFIG_DM_THERMAL=y
CONFIG_ROCKCHIP_THERMAL=y

// @temp: 保存获取到的温度
int thermal_get_temp(struct udevice *dev, int *temp)

// 使能配置
CONFIG_DEBUG_UART
CONFIG_SYS_NS16550

// 参数配置
CONFIG_DEBUG_UART_BASE
CONFIG_DEBUG_UART_CLOCK
CONFIG_BAUDRATE

./drivers/serial/serial-uclass.c

./drivers/serial/ns16550.c

&uart2 {
    u-boot,dm-pre-reloc;
    clock-frequency = <24000000>;
    status = "okay";
};

chosen {
    stdout-path = &uart2;
};

tools/ddrbin_tool
tools/ddrbin_param.txt
tools/ddrbin_tool_user_guide.txt

CONFIG_ROCKCHIP_PRELOADER_SERIAL  // 已经默认使能

aliases {
    mmc0 = &emmc;
    mmc1 = &sdmmc;

// 必须创建别名
    serial0 = &uart0;
    serial1 = &uart1;
    serial2 = &uart2;
    serial3 = &uart3;
    serial4 = &uart4;
    serial5 = &uart5;
    serial6 = &uart6;
    serial7 = &uart7;
};

.....

// 必须增加u-boot,dm-pre-reloc属性
&uart0 {
    u-boot,dm-pre-reloc;
};
&uart1 {
    u-boot,dm-pre-reloc;
};
&uart2 {
    u-boot,dm-pre-reloc;
    clock-frequency = <24000000>;
    status = "okay";
};
&uart3 {
    u-boot,dm-pre-reloc;
};
&uart4 {
    u-boot,dm-pre-reloc;
};

CONFIG_DISABLE_CONSOLE=y

// UART debug接⼝
void putc(const char c);
void puts(const char *s);
int printf(const char *fmt, ...);
void flushc(void);

// 跟外设通信功能的普通UART接⼝
int serial_dev_getc(struct udevice *dev);
int serial_dev_tstc(struct udevice *dev);
void serial_dev_putc(struct udevice *dev, char ch);
void serial_dev_puts(struct udevice *dev, const char *str);
void serial_dev_setbrg(struct udevice *dev, int baudrate);
void serial_dev_clear(struct udevice *dev);

CONFIG_USB=y

// gadget配置
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_MANUFACTURER="Rockchip"
CONFIG_USB_GADGET_VENDOR_NUM=0x2207
CONFIG_USB_GADGET_PRODUCT_NUM=0x330a // 根据芯⽚ID配置
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_DUALSPEED=y
// rockusb配置
#define CONFIG_USB_FUNCTION_MASS_STORAGE // 位于include/configs/rkxxx_common.h中
CONFIG_USB_GADGET_DOWNLOAD=y
CONFIG_CMD_ROCKUSB=y

// DWC3控制器配置
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_GADGET=y

// DWC2控制器配置
CONFIG_USB_GADGET_DWC2_OTG=y

// gadget框架
drivers/usb/gadget/g_dnl.c
drivers/usb/gadget/g_dnl.c
drivers/usb/gadget/config.c
drivers/usb/gadget/epautoconf.c
drivers/usb/gadget/usbstring.c
drivers/usb/gadget/f_mass_storage.c

// rockusb
cmd/rockusb.c
drivers/usb/gadget/f_rockusb.c

// controller
drivers/usb/gadget/dwc2_udc_otg* // dwc2 OTG控制器
drivers/usb/dwc3 // dwc3 OTG控制器

CONFIG_USB=y
CONFIG_DM_USB=y

// xHCI
CONFIG_USB_HOST=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DWC3=y
CONFIG_USB_DWC3_GENERIC=y

// EHCI
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_GENERIC=y

// OHCI
#define CONFIG_USB_OHCI_NEW // 位于include/configs/rkxxx_common.h中
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS      1
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_GENERIC=y

// 框架代码
cmd/usb.c
drivers/usb/host/usb-uclass.c

// EHCI
drivers/usb/host/ehci-generic.c
drivers/usb/host/ehci-hcd.c

// OHCI
drivers/usb/host/ohci-generic.c
drivers/usb/host/ohci-hcd.c

// xHCI
drivers/usb/host/xhci.c
drivers/usb/host/xhci-dwc3.c
drivers/usb/host/xhci-mem.c
drivers/usb/host/xhci-ring.c

CONFIG_PHY=y

// INNO USB2
CONFIG_PHY_ROCKCHIP_INNO_USB2=y
// INNO USB3
CONFIG_PHY_ROCKCHIP_INNO_USB3=y
// NANENG USB2
CONFIG_PHY_ROCKCHIP_NANENG_USB2=y
// NANENG COMBOPHY
CONFIG_PHY_ROCKCHIP_NANENG_COMBOPHY=y
// RK3399 USBDP PHY
CONFIG_PHY_ROCKCHIP_TYPEC=y

drivers/phy/phy-uclass.c

// INNO USB2
drivers/phy/phy-rockchip-inno-usb2.c
// INNO USB3
drivers/phy/phy-rockchip-inno-usb3.c
// NANENG USB2
drivers/phy/phy-rockchip-naneng-usb2.c
// NANENG COMBOPHY
drivers/phy/phy-rockchip-naneng-combphy.c
// RK3399 USBDP PHY
drivers/phy/phy-rockchip-typec.c

// USB键盘
CONFIG_USB_KEYBOARD=y
CONFIG_USB_KEYBOARD_FN_KEYS=y // ⽀持F1-F12, INS, HOME等快捷键。

// USB存储设备
CONFIG_USB_STORAGE=y

// 框架代码
common/usb.c
drivers/usb/host/usb-uclass.c

// USB键盘
drivers/input/usb_kbd.c
drivers/input/keyboard-uclass.c

// USB存储设备
common/usb/usb_storage.c

// DWC3控制器配置
// board/rockchip/evb_rk3399/evb_rk3399.c
#ifdef CONFIG_USB_DWC3
static struct dwc3_device dwc3_device_data = {
    .maximum_speed = USB_SPEED_HIGH,
    .base = 0xfe800000, // 根据不同芯⽚USB OTG控制器基地址进⾏修改
    .dr_mode = USB_DR_MODE_PERIPHERAL,
    .index = 0,
    .dis_u2_susphy_quirk = 1,
    .usb2_phyif_utmi_width = 16,
};

int usb_gadget_handle_interrupts(void)
{
    dwc3_uboot_handle_interrupt(0);
    return 0;
}

int board_usb_init(int index, enum usb_init_type init)
{
    return dwc3_uboot_init(&dwc3_device_data);
}
#endif

// DWC2控制器配置已在rockchip通⽤board.c⽂件实现，⼀般不需要修改。
// arch/arm/mach-rockchip/board.c

// 环境变量配置位于各板级头⽂件中
// include/configs/evb_rk3568.h

#define ROCKCHIP_DEVICE_SETTINGS \
        "stdin=serial,usbkbd\0" \

rockusb - Use the rockusb Protocol

Usage:
rockusb <USB_controller> <devtype> <dev[:part]>  e.g. rockusb 0 mmc 0

usb - USB sub-system

Usage:
usb start - start (scan) USB controller
usb reset - reset (rescan) USB controller
usb stop [f] - stop USB [f]=force stop
usb tree - show USB device tree
usb info [dev] - show available USB devices
usb test [dev] [port] [mode] - set USB 2.0 test mode
    (specify port 0 to indicate the device's upstream port)
    Available modes: J, K, S[E0_NAK], P[acket], F[orce_Enable]
usb storage - show details of USB storage devices
usb dev [dev] - show or set current USB storage device
usb part [dev] - print partition table of one or all USB storage    devices
usb read addr blk# cnt - read `cnt' blocks starting at block `blk#'
    to memory address `addr'
usb write addr blk# cnt - write `cnt' blocks starting at block `blk#'
    from memory address `addr'

CONFIG_ROCKCHIP_VENDOR_PARTITION

./arch/arm/mach-rockchip/vendor.c
./arch/arm/include/asm/arch-rockchip/vendor.h

int vendor_storage_read(u16 id, void *pbuf, u16 size)
int vendor_storage_write(u16 id, void *pbuf, u16 size)

CONFIG_WDT
CONFIG_ROCKCHIP_WATCHDOG

./drivers/watchdog/wdt-uclass.c

./drivers/watchdog/rockchip_wdt.c

// 设置喂狗超时时间且启动wdt（@flags默认填0）
int wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags);
// 关闭wdt
int wdt_stop(struct udevice *dev);
// 喂狗
int wdt_reset(struct udevice *dev);
// 忽略，⽬前未做底层驱动实现
int wdt_expire_now(struct udevice *dev, ulong flags)

config USING_KERNEL_DTB
        bool "Using dtb from Kernel/resource for U-Boot"
        depends on RKIMG_BOOTLOADER && OF_LIVE
        default y
        help
          This enable support to read dtb from resource and use it for U-Boot,
          the uart and emmc will still using U-Boot dtb, but other devices like
          regulator/pmic, display, usb will use dts node from kernel.

./doc/driver-model/livetree.txt

/*
 * @np: Pointer to device node, used for live tree
 * @of_offset: Pointer into flat device tree, used for flat tree. Note that this
 *      is not a really a pointer to a node: it is an offset value. See above.
 */
typedef union ofnode_union {
        const struct device_node *np;   /* will be used for future live tree */
        long of_offset;
} ofnode;

......
## Chapter-6 Booting Android Image at 0x0027f800 ...
Kernel load addr 0x00280000 size 23387 KiB
RAM disk load addr 0x0a200000 size 782 KiB
## Chapter-6 Flattened Device Tree blob at 08300000
   Booting using the fdt blob at 0x8300000
   XIP Kernel Image ... OK
  'reserved-memory' ramoops@110000: addr=110000 size=f0000
   Using Device Tree in place at 0000000008300000, end 0000000008314648

// kernel可⽤的内存空间
Adding bank: 0x00200000 - 0x08400000 (size: 0x08200000)
Adding bank: 0x0a200000 - 0x80000000 (size: 0x75e00000)
Total: 473.217 ms

Starting kernel ...

/* Magic for the A/B struct when serialized. */
#define AVB_AB_MAGIC "\0AB0"
#define AVB_AB_MAGIC_LEN 4

/* Versioning for the on-disk A/B metadata - keep in sync with avbtool. */
#define AVB_AB_MAJOR_VERSION 1
#define AVB_AB_MINOR_VERSION 0

/* Size of AvbABData struct. */
#define AVB_AB_DATA_SIZE 32

/* Maximum values for slot data */
#define AVB_AB_MAX_PRIORITY 15
#define AVB_AB_MAX_TRIES_REMAINING 7

typedef struct AvbABSlotData {
  /* Slot priority. Valid values range from 0 to AVB_AB_MAX_PRIORITY,
   * both inclusive with 1 being the lowest and AVB_AB_MAX_PRIORITY
   * being the highest. The special value 0 is used to indicate the
   * slot is unbootable.
   */
  uint8_t priority;

  /* Number of times left attempting to boot this slot ranging from 0
   * to AVB_AB_MAX_TRIES_REMAINING.
   */
  uint8_t tries_remaining;
  /* Non-zero if this slot has booted successfully, 0 otherwise. */
  uint8_t successful_boot;

  /* Reserved for future use. */
  uint8_t reserved[1];
} AVB_ATTR_PACKED AvbABSlotData;

/* Struct used for recording A/B metadata.
 *
 * When serialized, data is stored in network byte-order.
 */
typedef struct AvbABData {
  /* Magic number used for identification - see AVB_AB_MAGIC. */
  uint8_t magic[AVB_AB_MAGIC_LEN];

  /* Version of on-disk struct - see AVB_AB_{MAJOR,MINOR}_VERSION. */
  uint8_t version_major;
  uint8_t version_minor;

  /* Padding to ensure |slots| field start eight bytes in. */
  uint8_t reserved1[2];

  /* Per-slot metadata. */
  AvbABSlotData slots[2];

  /* Reserved for future use. */
  uint8_t reserved2[12];

  /* CRC32 of all 28 bytes preceding this field. */
  uint32_t crc32;
} AVB_ATTR_PACKED AvbABData;

typedef struct AvbABData {
  /* Magic number used for identification - see AVB_AB_MAGIC. */
  uint8_t magic[AVB_AB_MAGIC_LEN];

  /* Version of on-disk struct - see AVB_AB_{MAJOR,MINOR}_VERSION. */
  uint8_t version_major;
  uint8_t version_minor;

  /* Padding to ensure |slots| field start eight bytes in. */
  uint8_t reserved1[2];

  /* Per-slot metadata. */
  AvbABSlotData slots[2];

  /* mark last boot slot */
  uint8_t last_boot;
  /* Reserved for future use. */
  uint8_t reserved2[11];

  /* CRC32 of all 28 bytes preceding this field. */
  uint32_t crc32;
} AVB_ATTR_PACKED AvbABData;

typedef struct AvbABSlotData {
  /* Slot priority. Valid values range from 0 to AVB_AB_MAX_PRIORITY,
   * both inclusive with 1 being the lowest and AVB_AB_MAX_PRIORITY
   * being the highest. The special value 0 is used to indicate the
   * slot is unbootable.
   */
  uint8_t priority;

  /* Number of times left attempting to boot this slot ranging from 0
   * to AVB_AB_MAX_TRIES_REMAINING.
   */
  uint8_t tries_remaining;

  /* Non-zero if this slot has booted successfully, 0 otherwise. */
  uint8_t successful_boot;

  /* Mark update state, mark 1 if the slot is in update state, 0 otherwise. */
  uint8_t is_update : 1;
  /* Reserved for future use. */
  uint8_t reserved : 7;
} AVB_ATTR_PACKED AvbABSlotData;

successful_boot = 1;
priority = 15;
tries_remaining = 0;
is_update = 0;
last_boot = 0 or 1;     :refer to androidboot.slot_suffix

升级的slot设置：
successful_boot = 0;
priority = 14;
tries_remaining = 7;
is_update = 1;
lastboot = 0 or 1;     :refer to androidboot.slot_suffix

当前slot设置：
successful_boot = 1;
priority = 15;
tries_remaining = 0;
is_update = 0;
last_boot = 0 or 1;     :refer to androidboot.slot_suffix

升级的slot设置：
successful_boot = 0;
priority = 15;
tries_remaining = 7;
is_update = 0;
lastboot = 0 or 1;     :refer to androidboot.slot_suffix

当前slot设置：
successful_boot = 1;
priority = 14;
tries_remaining = 0;
is_update = 0;
last_boot = 0 or 1;     :refer to androidboot.slot_suffix

successful_boot = 0;
priority = 15;
tries_remaining = 7;
is_update = 0;
last_boot = 0 or 1;     :refer to androidboot.slot_suffix

升级的slot设置：
successful_boot = 0;
priority = 14;
tries_remaining = 7;
is_update = 1;
lastboot = 0 or 1;     :refer to androidboot.slot_suffix

当前slot设置：
successful_boot = 0;
priority = 15;
tries_remaining = 7;
is_update = 0;
last_boot = 0 or 1;     :refer to androidboot.slot_suffix

升级的slot设置：
successful_boot = 0;
priority = 15;
tries_remaining = 7;
is_update = 0;
lastboot = 0 or 1;     :refer to androidboot.slot_suffix

当前slot设置：
successful_boot = 0;
priority = 14;
tries_remaining = 7;
is_update = 0;
last_boot = 0 or 1;     :refer to androidboot.slot_suffix

#!/bin/sh
touch temp.bin
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_prk.pem
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_psk.pem
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_pik.pem
python avbtool make_atx_certificate --output=pik_certificate.bin --subject=temp.bin --
subject_key=testkey_pik.pem --subject_is_intermediate_authority --subject_key_version 42 --
authority_key=testkey_prk.pem
python avbtool make_atx_certificate --output=psk_certificate.bin --subject=product_id.bin --
subject_key=testkey_psk.pem --subject_key_version 42 --authority_key=testkey_pik.pem
python avbtool make_atx_metadata --output=metadata.bin --
intermediate_key_certificate=pik_certificate.bin --
product_key_certificate=psk_certificate.bin

python avbtool make_atx_permanent_attributes --output=permanent_attributes.bin --
product_id=product_id.bin --root_authority_key=testkey_prk.pem

avbtool add_hash_footer --image boot.img --partition_size 33554432 --partition_name boot --
key testkey_psk.pem --algorithm SHA256_RSA4096

avbtool add_hashtree_footer --partition_size 536870912 --partition_name system --image
system.img --algorithm SHA256_RSA4096 --key testkey_psk.pem

python avbtool make_vbmeta_image --public_key_metadata metadata.bin --
include_descriptors_from_image boot.img --include_descriptors_from_image system.img --
generate_dm_verity_cmdline_from_hashtree system.img --algorithm SHA256_RSA4096 --key
testkey_psk.pem  --output vbmeta.img

openssl dgst -sha256 -out permanent_attributes_cer.bin -sign PrivateKey.pem
permanent_attributes.bin

fastboot stage permanent_attributes.bin
fastboot oem fuse at-perm-attr
fastboot stage permanent_attributes_cer.bin
fastboot oem fuse at-rsa-perm-attr

fastboot stage permanent_attributes.bin
fastboot oem fuse at-perm-attr

fastboot oem at-lock-vboot

CONFIG_RK_AVB_LIBAVB_ENABLE_ATH_UNLOCK=y

openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_puk.pem

python avbtool make_atx_certificate --output=puk_certificate.bin --subject=product_id.bin --
subject_key=testkey_puk.pem --usage=com.google.android.things.vboot.unlock --
subject_key_version 42 --authority_key=testkey_pik.pem

python avbtool make_atx_unlock_credential --output=unlock_credential.bin --
intermediate_key_certificate=pik_certificate.bin --
unlock_key_certificate=puk_certificate.bin --challenge=unlock_challenge.bin --
unlock_key=testkey_puk.pem

fastboot stage unlock_credential.bin
fastboot oem at-unlock-vboot

fastboot oem at-get-vboot-unlock-challenge
fastboot get_staged raw_unlock_challenge.bin

fastboot stage unlock_credential.bin
fastboot oem at-unlock-vboot

CONFIG_MISC=y
CONFIG_ROCKCHIP_EFUSE=y
CONFIG_ROCKCHIP_OTP=y

fastboot oem at-get-vboot-unlock-challenge
fastboot stage unlock_credential.bin
fastboot oem at-unlock-vboot

#!/bin/sh
python avb-challenge-verify.py raw_unlock_challenge.bin product_id.bin
python avbtool make_unlock_credential --output=unlock_credential.bin --
intermediate_key_certificate=pik_certificate.bin --
unlock_key_certificate=puk_certificate.bin --challenge=unlock_challenge.bin --
unlock_key=testkey_puk.pem

#/user/bin/env python
"This is a test module for getting unlock_challenge.bin"
import sys
import  os
from hashlib import sha256

def challenge_verify():
    if (len(sys.argv) != 3) :
        print "Usage: rkpublickey.py [challenge_file] [product_id_file]"
        return
    if ((sys.argv[1] == "-h") or (sys.argv[1] == "--h")):
        print "Usage: rkpublickey.py [challenge_file] [product_id_file]"
        return
    try:
        challenge_file = open(sys.argv[1], 'rb')
        product_id_file = open(sys.argv[2], 'rb')
        challenge_random_file = open('unlock_challenge.bin', 'wb')
        challenge_data = challenge_file.read(52)
        product_id_data = product_id_file.read(16)
        product_id_hash = sha256(product_id_data).digest()
        print("The challege version is %d" %ord(challenge_data[0]))
        if (product_id_hash != challenge_data[4:36]) :
            print("Product id verify error!")
            return
        challenge_random_file.write(challenge_data[36:52])
        print("Success!")

    finally:
        if challenge_file:
            challenge_file.close()
        if product_id_file:
            product_id_file.close()
        if challenge_random_file:
            challenge_random_file.close()

if __name__ == '__main__':
    challenge_verify()

CONFIG_OPTEE_CLIENT=y
CONFIG_OPTEE_V1=y
CONFIG_OPTEE_ALWAYS_USE_SECURITY_PARTITION=y  // 安全数据存储到security分区

CONFIG_AVB_LIBAVB=y
CONFIG_AVB_LIBAVB_AB=y
CONFIG_AVB_LIBAVB_ATX=y
CONFIG_AVB_LIBAVB_USER=y
CONFIG_RK_AVB_LIBAVB_USER=y
// 上⾯⼏个为必选，下⾯选择为⽀持 AVB 与 A/B 特性，两个特性可以分开使⽤。
CONFIG_ANDROID_AB=y //这个⽀持 A/B
CONFIG_ANDROID_AVB=y //这个⽀持 AVB
// 下⾯宏为仅有 efuse 的平台使⽤
CONFIG_ROCKCHIP_PRELOADER_PUB_KEY=y
// 下⾯宏需要严格unlock校验时候打开
CONFIG_RK_AVB_LIBAVB_ENABLE_ATH_UNLOCK=y
// 安全校验开启
CONFIG_AVB_VBMETA_PUBLIC_KEY_VALIDATE=y
// 如果需要cpuid作为challenge number，开启以下宏
CONFIG_MISC=y
CONFIG_ROCKCHIP_EFUSE=y
CONFIG_ROCKCHIP_OTP=y

&firmware_android {
    compatible = "android,firmware";
    boot_devices = "fe330000.sdhci";
    vbmeta {
        compatible = "android,vbmeta";
        parts = "vbmeta,boot,system,vendor,dtbo";
    };
    fstab {
        compatible = "android,fstab";
        vendor {
            compatible = "android,vendor";
            dev = "/dev/block/by-name/vendor";
            type = "ext4";
            mnt_flags = "ro,barrier=1,inode_readahead_blks=8";
            fsmgr_flags = "wait,avb";
        };
    };
};

firmware {
    android {
        compatible = "android,firmware";
        fstab {
            compatible = "android,fstab";
            system {
                compatible = "android,system";
                dev = "/dev/block/by-name/system";
                type = "ext4";
                mnt_flags = "ro,barrier=1,inode_readahead_blks=8";
                fsmgr_flags = "wait,verify,slotselect";
            };
            vendor {
                compatible = "android,vendor";
                dev = "/dev/block/by-name/vendor";
                type = "ext4";
                mnt_flags = "ro,barrier=1,inode_readahead_blks=8";
                fsmgr_flags = "wait,verify,slotselect";
            };
        };
    };
};

Kernel command line: androidboot.verifiedbootstate=green androidboot.slot_suffix=_a dm="1
vroot none ro 1,0 1031864 verity 1 PARTUUID=b2110000-0000-455a-8000-44780000706f
PARTUUID=b2110000-0000-455a-8000-44780000706f 4096 4096 128983 128983 sha1
90d1d406caac04b7e3fbf48b9a4dcd6992cc628e 4172683f0d6b6085c09f6ce165cf152fe3523c89 10
restart_on_corruption ignore_zero_blocks use_fec_from_device PARTUUID=b2110000-0000-455a-
8000-44780000706f fec_roots 2 fec_blocks 130000 fec_start 130000" root=/dev/dm-0
androidboot.vbmeta.device=PARTUUID=f24f0000-0000-4e1b-8000-791700006a98
androidboot.vbmeta.avb_version=1.1 androidboot.vbmeta.device_state=unlocked
androidboot.vbmeta.hash_alg=sha512 androidboot.vbmeta.size=6528
androidboot.vbmeta.digest=41991c02c82ea1191545c645e2ac9cc7ca08b3da0a2e3115aff479d2df61feaccd
d35b6360cfa936f6f4381e4557ef18e381f4b236000e6ecc9ada401eda4cae
androidboot.vbmeta.invalidate_on_error=yes androidboot.veritymode=enforcing

avbtool make_vbmeta_image --include_descriptors_from_image boot.img --
include_descriptors_from_image system.img --generate_dm_verity_cmdline_from_hashtree
system.img --include_descriptors_from_image vendor.img --algorithm SHA512_RSA4096 --key
testkey_psk.pem --public_key_metadata metadata.bin --output vbmeta.img

FIRMWARE_VER:8.0
MACHINE_MODEL:RK3326
MACHINE_ID:007
MANUFACTURER: RK3326
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: 3326
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT
CMDLINE:mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(trust),0x0000
2000@0x00008000(misc),0x00008000@0x0000a000(resource),0x00010000@0x00012000(kernel),0x000020
00@0x00022000(dtb),0x00002000@0x00024000(dtbo),0x00000800@0x00026000(vbmeta),0x00010000@0x00
026800(boot),0x00020000@0x00036800(recovery),0x00038000@0x00056800(backup),0x00002000@0x0008
e800(security),0x000c0000@0x00090800(cache),0x00514000@0x00150800(system),0x00008000@0x00664
800(metadata),0x000c0000@0x0066c800(vendor),0x00040000@0x0072c800(oem),0x00000400@0x0076c800
(frp),-@0x0076cc00(userdata:grow)
uuid:system=af01642c-9b84-11e8-9b2a-234eb5e198a0

FIRMWARE_VER:8.1
MACHINE_MODEL:RK3326
MACHINE_ID:007
MANUFACTURER: RK3326
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: 3326
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT
CMDLINE:
mtdparts=rk29xxnand:0x00002000@0x00004000(uboot_a),0x00002000@0x00006000(uboot_b),0x00002000
@0x00008000(trust_a),0x00002000@0x0000a000(trust_b),0x00001000@0x0000c000(misc),0x00001000@0
x0000d000(vbmeta_a),0x00001000@0x0000e000(vbmeta_b),0x00020000@0x0000e000(boot_a),0x00020000
@0x0002e000(boot_b),0x00100000@0x0004e000(system_a),0x00300000@0x0032e000(system_b),0x001000
00@0x0062e000(vendor_a),0x00100000@0x0072e000(vendor_b),0x00002000@0x0082e000(oem_a),0x00002
000@0x00830000(oem_b),0x0010000@0x00832000(factory),0x00008000@0x842000(factory_bootloader),
0x00080000@0x008ca000(oem),-@0x0094a000(userdata)

fastboot usb 0

fastboot flash < partition > [ < filename > ]
fastboot erase < partition >
fastboot getvar < variable > | all
fastboot set_active < slot >
fastboot reboot
fastboot reboot-bootloader
fastboot flashing unlock
fastboot flashing lock
fastboot stage [ < filename > ]
fastboot get_staged [ < filename > ]
fastboot oem fuse at-perm-attr-data
fastboot oem fuse at-perm-attr
fastboot oem fuse at-rsa-perm-attr
fastboot oem at-get-ca-request
fastboot oem at-set-ca-response
fastboot oem at-lock-vboot
fastboot oem at-unlock-vboot
fastboot oem at-disable-unlock-vboot
fastboot oem fuse at-bootloader-vboot-key
fastboot oem format
fastboot oem at-get-vboot-unlock-challenge
fastboot oem at-reset-rollback-index

version                               /* fastboot 版本 */
version-bootloader                    /* U-Boot 版本 */
version-baseband
product                               /* 产品信息 */
serialno                              /* 序列号 */
secure                                /* 是否开启安全校验 */
max-download-size                     /* fastboot ⽀持单次传输最⼤字节数 */
logical-block-size                    /* 逻辑块数 */
erase-block-size                      /* 擦除块数 */
partition-type : < partition >        /* 分区类型 */
partition-size : < partition >        /* 分区⼤⼩ */
unlocked                              /* 设备lock状态 */
off-mode-charge
battery-voltage
variant
battery-soc-ok
slot-count                            /* slot 数⽬ */
has-slot: < partition >               /* 查看slot内是否有该分区名 */
current-slot                          /* 当前启动的slot */
slot-suffixes                         /* 当前设备具有的slot,打印出其name */
slot-successful: < _a | _b >          /* 查看分区是否正确校验启动过 */
slot-unbootable: < _a | _b >          /* 查看分区是否被设置为unbootable */
slot-retry-count: < _a | _b >         /* 查看分区的retry-count次数 */
at-attest-dh
at-attest-uuid
at-vboot-state

PS E:\U-Boot-AVB\adb> .\fastboot.exe getvar all
(bootloader) version:0.4
(bootloader) version-bootloader:U-Boot 2017.09-gc277677
(bootloader) version-baseband:N/A
(bootloader) product:rk3229
(bootloader) serialno:7b2239270042f8b8
(bootloader) secure:yes
(bootloader) max-download-size:0x04000000
(bootloader) logical-block-size:0x512
(bootloader) erase-block-size:0x80000
(bootloader) partition-type:bootloader_a:U-Boot
(bootloader) partition-type:bootloader_b:U-Boot
(bootloader) partition-type:tos_a:U-Boot
(bootloader) partition-type:tos_b:U-Boot
(bootloader) partition-type:boot_a:U-Boot
(bootloader) partition-type:boot_b:U-Boot
(bootloader) partition-type:system_a:ext4
(bootloader) partition-type:system_b:ext4
(bootloader) partition-type:vbmeta_a:U-Boot
(bootloader) partition-type:vbmeta_b:U-Boot
(bootloader) partition-type:misc:U-Boot
(bootloader) partition-type:vendor_a:ext4
(bootloader) partition-type:vendor_b:ext4
(bootloader) partition-type:oem_bootloader_a:U-Boot
(bootloader) partition-type:oem_bootloader_b:U-Boot
(bootloader) partition-type:factory:U-Boot
(bootloader) partition-type:factory_bootloader:U-Boot
(bootloader) partition-type:oem_a:ext4
(bootloader) partition-type:oem_b:ext4
(bootloader) partition-type:userdata:ext4
(bootloader) partition-size:bootloader_a:0x400000
(bootloader) partition-size:bootloader_b:0x400000
(bootloader) partition-size:tos_a:0x400000
(bootloader) partition-size:tos_b:0x400000
(bootloader) partition-size:boot_a:0x2000000
(bootloader) partition-size:boot_b:0x2000000
(bootloader) partition-size:system_a:0x20000000
(bootloader) partition-size:system_b:0x20000000
(bootloader) partition-size:vbmeta_a:0x10000
(bootloader) partition-size:vbmeta_b:0x10000
(bootloader) partition-size:misc:0x100000
(bootloader) partition-size:vendor_a:0x4000000
(bootloader) partition-size:vendor_b:0x4000000
(bootloader) partition-size:oem_bootloader_a:0x400000
(bootloader) partition-size:oem_bootloader_b:0x400000
(bootloader) partition-size:factory:0x2000000
(bootloader) partition-size:factory_bootloader:0x1000000
(bootloader) partition-size:oem_a:0x10000000
(bootloader) partition-size:oem_b:0x10000000
(bootloader) partition-size:userdata:0x7ad80000
(bootloader) unlocked:no
(bootloader) off-mode-charge:0
(bootloader) battery-voltage:0mv
(bootloader) variant:rk3229_evb
(bootloader) battery-soc-ok:no
(bootloader) slot-count:2
(bootloader) has-slot:bootloader:yes
(bootloader) has-slot:tos:yes
(bootloader) has-slot:boot:yes
(bootloader) has-slot:system:yes
(bootloader) has-slot:vbmeta:yes
(bootloader) has-slot:misc:no
(bootloader) has-slot:vendor:yes
(bootloader) has-slot:oem_bootloader:yes
(bootloader) has-slot:factory:no
(bootloader) has-slot:factory_bootloader:no
(bootloader) has-slot:oem:yes
(bootloader) has-slot:userdata:no
(bootloader) current-slot:a
(bootloader) slot-suffixes:a,b
(bootloader) slot-successful:a:yes
(bootloader) slot-successful:b:no
(bootloader) slot-unbootable:a:no
(bootloader) slot-unbootable:b:yes
(bootloader) slot-retry-count:a:0
(bootloader) slot-retry-count:b:0
(bootloader) at-attest-dh:1:P256
(bootloader) at-attest-uuid:
all: Done!
finished. total time: 0.636s

rk_sign_tool cc --chip 3399
rk_sign_tool kk --out .

rk_sign_tool lk --key privateKey.pem --pubkey publicKey.pem

rk_sign_tool sl --loader loader.bin

rk_sign_tool si --img uboot.img
rk_sign_tool si --img trust.img

#!/bin/bash
touch temp.bin
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_prk.pem
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_psk.pem
openssl genpkey -algorithm RSA -pkeyopt rsa_keygen_bits:4096 -outform PEM -out
testkey_pik.pem
python avbtool make_atx_certificate --output=pik_certificate.bin --subject=temp.bin --
subject_key=testkey_pik.pem --subject_is_intermediate_authority --subject_key_version 42 --
authority_key=testkey_prk.pem
python avbtool make_atx_certificate --output=psk_certificate.bin --subject=product_id.bin --
subject_key=testkey_psk.pem --subject_key_version 42 --authority_key=testkey_pik.pem
python avbtool make_atx_metadata --output=metadata.bin --
intermediate_key_certificate=pik_certificate.bin --
product_key_certificate=psk_certificate.bin
python avbtool make_atx_permanent_attributes --output=permanent_attributes.bin --
product_id=product_id.bin --root_authority_key=testkey_prk.pem
python avbtool add_hash_footer --image boot.img --partition_size 33554432 --partition_name
boot --key testkey_psk.pem --algorithm SHA256_RSA4096
python avbtool make_vbmeta_image --public_key_metadata metadata.bin --
include_descriptors_from_image boot.img --algorithm SHA256_RSA4096 --key testkey_psk.pem  --
output vbmeta.img
openssl dgst -sha256 -out permanent_attributes_cer.bin -sign PrivateKey.pem
permanent_attributes.bin

rkdeveloptool db loader.bin
rkdeveloptool ul loader.bin
rkdeveloptool gpt parameter.txt
rkdeveloptool wlx uboot uboot.img
rkdeveloptool wlx trust trust.img
rkdeveloptool wlx boot boot.img
rkdeveloptool wlx system system.img

fastboot stage permanent_attributes.bin
fastboot oem fuse at-perm-attr

fastboot stage permanent_attributes.bin
fastboot oem fuse at-perm-attr
fastboot stage permanent_attributes_cer.bin
fastboot oem fuse at-rsa-perm-attr

#define DEBUG

U-Boot 2017.09-01725-g03b8d3b-dirty (Jul 06 2018 - 10:08:27 +0800)

initcall: 0000000000214388
initcall: 0000000000214724
Model: Rockchip RK3399 Evaluation Board
initcall: 0000000000214300
DRAM:  initcall: 0000000000203f68
initcall: 0000000000214410  // 结合反汇编找出地址对应的函数
initcall: 00000000002140dc
....
3.8 GiB
initcall: 00000000002143b8
....
Relocation Offset is: f5c03000
initcall: 00000000f5e176bc
initcall: 00000000002146a4 (relocated to 00000000f5e176a4)
initcall: 0000000000214668 (relocated to 00000000f5e17668)

...

// 读操作
md - memory display
Usage: md [.b, .w, .l, .q] address [# of objects]

// 写操作
mw - memory write (fill)
Usage: mw [.b, .w, .l, .q] address value [count]

=> md.l 0x76000000 0x10
76000000: fffffffe ffffffff ffffffff ffffffff    ................
76000010: ffffffdf ffffffff feffffff ffffffff    ................
76000020: ffffffff ffffffff ffffffff ffffffff    ................
76000030: ffffffff ffffffff ffffffff ffffffff    ................

=> mw.l 0x76000000 0xffff1234 // ⾼16位有mask
=> md.l 0x76000000 0x10       // 回读
76000000: ffff1234 ffffffff ffffffff ffffffff    ................
76000010: ffffffdf ffffffff feffffff ffffffff    ................
76000020: ffffffff ffffffff ffffffff ffffffff    ................
76000030: ffffffff ffffffff ffffffff ffffffff    ................

=> iomem
iomem - Show iomem data by device compatible

Usage:
// @<compatible>：节点的compatible部分关键词匹配
iomem <compatible> <start offset>  <end offset>
eg: iomem -grf 0x0 0x200

// 这⾥为了和"rockchip, rk3288-pmugrf" 区分开，所以⽤"-grf"作为关键词
=> iomem -grf 0x0 0x20
rockchip,rk3228-grf:
11000000:  00000000 00000000 00004000 00002000
11000010:  00000000 00005028 0000a5a5 0000aaaa
11000020:  00009955

=> i2c
i2c - I2C sub-system

Usage:
i2c dev [dev] - show or set current I2C bus
i2c md chip address[.0, .1, .2] [# of objects] - read from I2C device
i2c mw chip address[.0, .1, .2] value [count] ‐ write to I2C device (fill)
......

=> i2c dev 0                     // 切到i2c0（指定⼀次即可）
Setting bus to 0

=> i2c md 0x1b 0x2e 0x20         // i2c设备地址为1b(7位地址)，读取0x2e开始的连续0x20个寄存器值
002e: 11 0f 00 00 11 0f 00 00 01 00 00 00 09 00 00 0c    ................
003e: 00 0a 0a 0c 0c 0c 00 07 07 0a 00 0c 0c 00 00 00    ................

=> i2c dev 0                     // 切到i2c0（指定⼀次即可）
Setting bus to 0

=> i2c mw 0x1b 0x2e 0x10         // i2c设备地址为1b(7位地址)，对0x2e寄存器赋值为0x10
=> i2c md 0x1b 0x2e 0x20         // 回读
002e: 10 0f 00 00 11 0f 00 00 01 00 00 00 09 00 00 0c    ................
003e: 00 0a 0a 0c 0c 0c 00 07 07 0a 00 0c 0c 00 00 00    ................

=> gpio
gpio - query and control gpio pins

Usage:
gpio <input|set|clear|toggle> <pin>
    - input/set/clear/toggle the specified pin
gpio status [-a] [<bank> | <pin>]  - show [all/claimed] GPIOs

=> gpio status -a
Bank A:
A0: input: 0 [ ]
A1: output: 1 [ ]
A2: input: 1 [ ]
...
A29: unused: 1 [ ]
A30: unknown
A31: unused: 0 [ ]
...
D6: input: 0 [ ]
D7: output: 1 [x] vcc18-lcd-n.gpio
...
D31: input: 0 [ ]

Bank E:
E0: input: 0 [ ]
E1: input: 0 [ ]

=> gpio input A7

=> gpio clear A7

=> gpio set A7

=> gpio toggle A7

=> fdt
fdt - flattened device tree utility commands

Usage:
fdt addr [-c]  <addr> [<length>]    - Set the [control] fdt location to <addr>
fdt print  <path> [<prop>]          - Recursive print starting at <path>
fdt list   <path> [<prop>]          - Print one level starting at <path>
......
NOTE: Dereference aliases by omitting the leading '/', e.g. fdt print ethernet0.

=> fdt addr $fdt_addr_r   // 指定fdt地址
=> fdt print              // 把fdt内容全部打印出来

=> mmc info
Device: dwmmc@ff0f0000                  // 设备节点
Manufacturer ID: 15
OEM: 100
Name: 8GME4
Timing Interface: High Speed            // 速度模式
Tran Speed: 52000000                    // 当前速度
Rd Block Len: 512
MMC version 5.1
High Capacity: Yes
Capacity: 7.3 GiB                       // 存储容量
Bus Width: 8-bit                        // 总线宽度
Erase Group Size: 512 KiB
HC WP Group Size: 8 MiB
User Capacity: 7.3 GiB WRREL
Boot Capacity: 4 MiB ENH
RPMB Capacity: 512 KiB ENH

=> mmc dev 0                            // 切换到eMMC
=> mmc dev 1                            // 切换到sd卡

mmc read addr blk# cnt
mmc write addr blk# cnt
mmc erase blk# cnt
例：
=> mmc read 0x70000000 0 1    // 读取MMC设备第⼀个block，⼤⼩为1 sector的数据到内存0x70000000
=> mmc write 0x70000000 0 1   // 把内存0x70000000起1 sector的数据写到存储第⼀个block起位置
=> mmc erase 0 1              // 擦除存储第⼀个block起1 sector数据

CONFIG_BOOTSTAGE_PRINTF_TIMESTAMP

[    0.259266] U-Boot 2017.09-01739-g856f373-dirty (Jul 10 2018 - 20:26:05 +0800)
[    0.260596] Model: Rockchip RK3399 Evaluation Board
[    0.261332] DRAM:  3.8 GiB
Relocation Offset is: f5bfd000
Using default environment

[    0.354038] dwmmc@fe320000: 1, sdhci@fe330000: 0
[    0.521125] Card did not respond to voltage select!
[    0.521188] mmc_init: -95, time 9
[    0.671451] switch to partitions #0, OK
[    0.671500] mmc0(part 0) is current device
[    0.675507] boot mode: None
[    0.683738] DTB: rk-kernel.dtb
[    0.706940] Using kernel dtb
......

=> dm tree

 Class      Probed        Driver               Name
----------------------------------------------------------
 root       [ + ]   root_driver                root_driver
 syscon     [   ]   rk322x_syscon              |-- syscon@11000000
 serial     [ + ]   ns16550_serial             |-- serial@11030000 *
 clk        [ + ]   clk_rk322x                 |-- clock-controller@110e0000
 sysreset   [   ]   rockchip_sysreset          |   |-- sysreset
 reset      [   ]   rockchip_reset             |   `-- reset
 mmc        [ + ]   rockchip_rk3288_dw_mshc    |-- dwmmc@30020000 *
 blk        [ + ]   mmc_blk                    |   `-- dwmmc@30020000.blk *
 ram        [   ]   rockchip_rk322x_dmc        |-- dmc@11200000
 serial     [ + ]   ns16550_serial             |-- serial@11020000
 i2c        [ + ]   i2c_rockchip               |-- i2c@11050000
 ......

=> dm uclass

uclass 0: root
- * root_driver @ 7be54c88, seq 0, (req -1)

uclass 11: adc
- * saradc@ff100000 @ 7be56220, seq 0, (req -1)
......
uclass 40: backlight
- * backlight @ 7be81178, seq 0, (req -1)

uclass 77: key
-   rockchip-key @ 7be811f0
......

CONFIG_ROCKCHIP_DEBUGGER

CONFIG_ROCKCHIP_CRC

=Booting Rockchip format image=
kernel image CRC32 verify... okay.      // kernel 校验成功（如果失败则打印“fail！”）
boot image CRC32 verify... okay.        // boot 校验成功（如果失败则打印“fail！”）
kernel   @ 0x02080000 (0x01249808)
ramdisk  @ 0x0a200000 (0x001e6650)
## Chapter-8 Flattened Device Tree blob at 01f00000
   Booting using the fdt blob at 0x1f00000
  'reserved-memory' secure-memory@20000000: addr=20000000 size=10000000
   Loading Ramdisk to 08019000, end 081ff650 ... OK
   Loading Device Tree to 0000000008003000, end 0000000008018c97 ... OK
Adding bank: start=0x00200000, size=0x08200000
Adding bank: start=0x0a200000, size=0xede00000

Starting kernel ...

ANDROID_BOOT_IMAGE_HASH

HASH_ROCKCHIP_LEGACY

......
// 传递给内核的可⽤内存块（已去除安全内存块）。
Adding bank: 0x00200000 - 0x08400000 (size: 0x08200000)
Adding bank: 0x0a200000 - 0x40000000 (size: 0x35e00000)
Total: 895.411 ms

Starting kernel ...
[    0.000000] Booting Linux on physical CPU 0x0

./arch/arm/mach-rockchip/param.c

struct memblock *param_parse_ddr_mem(int *out_count)
{
    ......

    // 这⾥就是ddr传递给U-Boot的容量信息。
    // 因为可能出现不连续的地址，所以会分块传递，分别指明各个内存块的起始地址和⼤⼩。
    // PS: ⼀般情况下都是连续内存，不会需要分块。
    for (i = 0, n = 0; i < count; i++, n++) {
        // ⽐如2GB容量（连续地址），则：count=1, base = 0，size = 0x80000000。
        // ⽤⼾调试时可以在这⾥按需修改。
        base = t->u.ddr_mem.bank[i];
        size = t->u.ddr_mem.bank[i + count];

        /* 0~4GB */
        if (base < SZ_4GB) {
            mem[n].base = base;
            mem[n].size = ddr_mem_get_usable_size(base, size);
            if (base + size > SZ_4GB) {
                n++;
                mem[n].base_u64 = SZ_4GB;
                mem[n].size_u64 = base + size - SZ_4GB;
            }
        } else {
            /* 4GB+ */
            mem[n].base_u64 = base;
            mem[n].size_u64 = size;
        }

        assert(n < count + MEM_RESV_COUNT);
    }
    ......
}

NOTICE:  BL31: v1.3(debug):d98d16e
NOTICE:  BL31: Built : 15:03:07, May 10 2018
NOTICE:  BL31: Rockchip release version: v1.1
INFO:    GICv3 with legacy support detected. ARM GICV3 driver initialized in EL3
INFO:    Using opteed sec cpu_context!
INFO:    boot cpu mask: 0
INFO:    plat_rockchip_pmu_init(1151): pd status 3e
INFO:    BL31: Initializing runtime services
INFO:    BL31: Initializing BL32
INFO:    BL31: Preparing for EL3 exit to normal world
INFO:    Entry point address = 0x200000  // U-Boot地址
INFO:    SPSR = 0x3c9

INF [0x0] TEE-CORE:init_primary_helper:378: Release version: 1.9
INF [0x0] TEE-CORE:init_primary_helper:379: Next entry point address: 0x60000000  // U-Boot
地址
INF [0x0] TEE-CORE:init_teecore:83: teecore inits done

U-Boot 2017.09-01730-gb34f08b (Jul 06 2018 - 17:47:52 +0800)

U-Boot 2017.09-01730-gb34f08b-dirty (Jul 06 2018 - 17:35:04 +0800)

// U-Boot第⼀⾏打印，包含了commit版本、编译时间等信息
// 注意: 这⾥只是U-Boot"相对早"的第⼀⾏正规打印，⽽不是U-Boot能做出的最早打印
// 打开debug信息，可以看到更早的调试打印
U-Boot 2017.09-03033-g81b79f7-dirty (Jul 04 2019 - 15:04:00 +0800)

// U-Boot dts的“model"字段内容，通过这个信息可以知道我们使⽤了U-Boot哪份dts
Model: Rockchip RK3399 Evaluation Board
// 启⽤了preloader-serial功能，即沿⽤前级loader的串⼝配置，当前使⽤UART2作为打印⼝
PreSerial: 2
// 板⼦的总内存容量是2GB
DRAM: 2 GiB
// 当前版本⽀持了sysmem内存卡管理机制
Sysmem: init
// U-Boot会把⾃⼰的代码进⾏⾃搬移，从当前ddr靠前的位置搬到靠后的位置（详⻅U-Boot开发⽂档启动流程）
// ⾃搬移后的代码起始地址是0x7dbe2000, 这个信息在反汇编调试时可能有⽤到
Relocation Offset is: 7dbe2000
// ENV默认保存在ddr⾥。如果是选择保存在eMMC、Nand等存储介质⾥，则不会有这个打印
Using default environment

// 当前的存储介质是mmc0，即eMMC(如果是sd卡，则为mmc1)
dwmmc@fe320000: 1, sdhci@fe330000: 0
// 存储介质类型是通过atags，由前级miniloader传参告知U-Boot
Bootdev(atags): mmc 0
// 当前的eMMC的⼯作在HS400模式，时钟频率是150M
MMC0: HS400, 150Mhz
// 当前采⽤GPT分区表（如果是RK parameter分区表，则打印：RKPARM）
PartType: EFI
// 当前是recovery模式
// kernel⾥执⾏的"reboot xxx"命令，最终也是由这个打印来体现
boot mode: recovery
// Kernel DTB来⾃于recovery.img，其正常被加载
Load FDT from recovery part
DTB: rk-kernel.dtb
HASH: OK(c)

// ==> 注意：⾃此之后，U-Boot已经切到kernel dtb，后续所有外设驱动都使⽤kernel dtb的信息！！

// DTBO执⾏成功
ANDROID: fdt overlay OK
// I2C的速度，这个是U-Boot开机速度的影响因素之⼀，尤其对于DCDC和LDO⾮常多的PMIC，如果I2C速度慢，
// 那么对开机速度有⼀定影响。如果⽤⼾关⼼开机速度，可以关注这个信息
I2c speed: 400000Hz
// 当前PMIC是RK818
// on值对应ON_SOURCE寄存器，表明了当前这次PMIC上电的原因
// off值对应OFF_SOURCE寄存器，表明前⼀次关机或掉电的原因
// on和off信息，对于系统出现异常重启或关机等情况时，这是个有价值的信息
PMIC: RK818 (on=0x20 off=0x40)
// 各路可调压regulator的当前电压值，⼀般是DCDC且对应的是RK平台的arm、logic、center等电压
// 在出现系统启动异常、开机不稳定等问题时，这是个有价值的信息vdd_center 900000 uV
vdd_cpu_l 900000 uV
vdd_log 900000 uV
// Kernel dts的“model"字段内容，通过这个信息可以知道我们使⽤了Kernel的哪份dts
Model: Rockchip RK3399 Excavator Board edp avb (Android)
enter Recovery mode!
// 显⽰驱动的相关信息
Rockchip UBOOT DRM driver version: v1.0.1
Using display timing dts
Detailed mode clock 200000 kHz, flags[a]
  H: 1536 1548 1564 1612
  V: 2048 2056 2060 2068
bus_format: 100e
// clk-tree信息，具体含义请参考U-Boot开发⽂档的CLK章节
CLK: (uboot. arml: enter 816000 KHz, init 816000 KHz, kernel 0N/A)
CLK: (uboot. armb: enter 24000 KHz, init 24000 KHz, kernel 0N/A)
 aplll 816000 KHz
 apllb 24000 KHz
 dpll 800000 KHz
 cpll 200000 KHz
 gpll 800000 KHz
 npll 600000 KHz
 vpll 24000 KHz
 aclk_perihp 133333 KHz
 hclk_perihp 66666 KHz
 pclk_perihp 33333 KHz
 aclk_perilp0 266666 KHz
 hclk_perilp0 88888 KHz
 pclk_perilp0 44444 KHz
 hclk_perilp1 100000 KHz
 pclk_perilp1 50000 KHz
// GMAC驱动使能
Net:  eth0: ethernet@fe300000
// 开机⻓按ctrl+c，可在如下打印之后进⼊U-Boot命令⾏模式
Hit key to stop autoboot('CTRL+C'): 0
// 再⼀次知道当前是recovery模式
ANDROID: reboot reason: "recovery"
// vboot=0表⽰没有启⽤secureboot；当前是AVB固件，所以会⾛AVB的常规校验流程
Vboot=0, AVB images, AVB verify
// 设备是否unlock
read_is_device_unlocked() ops returned that device is UNLOCKED
// 原⽣的U-Boot默认是把整个boot.img/recovery.img加载起来，然后再把ramdisk、fdt、kernel再进⾏
// ⼀次搬移（称为relocation），搬到⽤⼾预定的地址上，这样是⽐较耗时的，尤其当ramdisk⾮常⼤的时候。
// RK平台做了修改，⼀次性直接从存储上把ramdisk、fdt、kernel搬到预定的内存地址。
// 有如下打印则说明启⽤了这种⼀次性搬移的操作，更省时间
Fdt Ramdisk skip relocation
// 加载Android格式的固件，把kernel加载到0x00280000，fdt加载到0x8300000
// 假如是LZ4压缩内核，这⾥可能打印：
// Booting LZ4 kernel at 0x00680000(Uncompress to 0x00280000) with fdt at 0x8300000...
Booting IMAGE kernel at 0x00280000 with fdt at 0x8300000...

// 忽略，可不关⼼
### Booting Android Image at 0x0027f800 ...
// kernel和ramdisk的加载地址以及⼤⼩
Kernel load addr 0x00280000 size 19081 KiB
RAM disk load addr 0x0a200000 size 9627 KiB
// fdt的加载地址
### Flattened Device Tree blob at 08300000
   Booting using the fdt blob at 0x8300000
// 忽略，可不关⼼
   XIP Kernel Image ... OK
// 这⾥仅仅是打印kernel dts指定的reserved-memory，可作为出内核启动出问题时的⼀个分析信息
   'reserved-memory' secure-memory@20000000: addr=20000000 size=10000000
// fdt的起始和结束地址
   Using Device Tree in place at 0000000008300000, end 000000000831c6f7
// 传递给内核，告知内核可使⽤的内存空间范围（ATF、optee等空间已经被除去）
Adding bank: 0x00200000 - 0x08400000 (size: 0x08200000)
Adding bank: 0x0a200000 - 0x80000000 (size: 0x75e00000)
// U-Boot阶段开机耗时
Total: 367.128 ms

// 由U-Boot打印，这个打印之后，U-Boot会完成⼀些ARM架构相关（⽐如：清cache、关中断、
// cpu状态切换等）和U-Boot的dm设备注销等清零⼯作，出问题的概率极低。
// 完成上述⼯作后就跳到kernel，因此也可以理解为，出现这个打印就是到了内核阶段。
Starting kernel ...

// kernel阶段的打印信息
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Initializing cgroup subsys cpuacct
[    0.000000] Initializing cgroup subsys schedtune
[    0.000000] Linux version 4.4.167 (hgc@ubuntu) (gcc version 6.3.1 20170404 (Linaro
GCC 6.3-2017.05) ) #83 SMP PREEMPT Thu Mar 21 09:31:08 CST 2019
[    0.000000] Boot CPU: AArch64 Processor [410fd034]
[    0.000000] earlycon: Early serial console at MMIO32 0xff1a0000 (options '')
[    0.000000] bootconsole [uart0] enabled
[    0.000000] Reserved memory: failed to reserve memory for node 'stb-
devinfo@00000000': base 0x0000000000000000, size 0 MiB
[    0.000000] cma: Reserved 16 MiB at 0x000000007f000000
......

U-Boot 2017.09-03352-gb1265b5 (Jul 12 2019 - 09:57:24 +0800)

Model: Rockchip RK3399 Evaluation Board
PreSerial: 2
DRAM:  2 GiB
Sysmem: init
Relocation Offset is: 7dbe2000
Using default environment
......

Hit key to stop autoboot('CTRL+C'):  0
ANDROID: reboot reason: "recovery"
// 因为是RK格式的固件，所以不可能是AVB格式
Not AVB images, AVB skip
// 因为是RK格式的固件，所以这⾥会提⽰加载android格式固件失败
// 因为⽬前启动优先级是：android格式 > RK格式 > distro格式
** Invalid Android Image header **
Android image load failed
Android boot failed, error -1.
// 当前是recovery模式
boot mode: recovery
// 启动RK格式的固件，加载ramdis、kernel、fdt
=Booting Rockchip format image=
fdt      @ 0x08300000 (0x00012dd0)
kernel   @ 0x00280000 (0x0119e008)
ramdisk  @ 0x0a200000 (0x00754540)

// 下⾯基本类同android格式固件的启动信息
Fdt Ramdisk skip relocation
### Flattened Device Tree blob at 08300000
   Booting using the fdt blob at 0x8300000
   Using Device Tree in place at 0000000008300000, end 0000000008315dcf
Adding bank: 0x00200000 - 0x08400000 (size: 0x08200000)
Adding bank: 0x0a200000 - 0x80000000 (size: 0x75e00000)
Total: 508.11 ms

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
......

U-Boot 2017.09-03352-gb1265b5 (Jul 12 2019 - 09:57:24 +0800)

Model: Rockchip RK3399 Evaluation Board
PreSerial: 2
DRAM:  2 GiB
Sysmem: init
Relocation Offset is: 7dbe2000
Using default environment
......

// 找到mmc0，即eMMCswitch to partitions #0, OK
mmc0(part 0) is current device
// 查找eMMC存储上第6个分区的固件（GPT分区表⾥，6对应的是boot.img分区，GPT⾥⽤"-bootable"属性指明）
Scanning mmc 0:6...
// 找到了配置⽂件extlinux.conf
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf

// 加载kernel
205 bytes read in 82 ms (2 KiB/s)
1:      rockchip-kernel-4.4
Retrieving file: /Image
13484040 bytes read in 1833 ms (7 MiB/s)

// 打包时指定的cmdline信息
append: earlycon=uart8250,mmio32,0xff1a0000 console=ttyS2,1500000n8 rw
root=/dev/mmcblk0p7 rootwait rootfstype=ext4 init=/sbin/init

// 加载fdt
Retrieving file: /rk3399.dtb
61714 bytes read in 54 ms (1.1 MiB/s)

// ==> 如果打包时没有ramdisk，就不会有ramdisk信息打印; 否则这⾥也会有打印

### Flattened Device Tree blob at 01f00000
   Booting using the fdt blob at 0x1f00000
   Loading Device Tree to 000000007df14000, end 000000007df26111 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
......

U-Boot 2017.09-03352-gb1265b5 (Jul 12 2019 - 09:57:24 +0800)

Model: Rockchip RK3399 Evaluation Board
PreSerial: 2
DRAM:  2 GiB
Sysmem: init
Relocation Offset is: 7dbe2000
Using default environment

......

// 找到mmc0，即eMMC
找不到固件的开机信息
switch to partitions #0, OK
mmc0(part 0) is current device
// 查找eMMC存储上第6个分区的固件（GPT分区表⾥，6对应的是boot.img分区，GPT⾥⽤"-bootable"属性指明）
Scanning mmc 0:6...
// 找到了配置⽂件extlinux.conf
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf

// 加载kernel
205 bytes read in 82 ms (2 KiB/s)
1:      rockchip-kernel-4.4
Retrieving file: /Image
13484040 bytes read in 1833 ms (7 MiB/s)

// 打包时指定的cmdline信息
append: earlycon=uart8250,mmio32,0xff1a0000 console=ttyS2,1500000n8 rw
root=/dev/mmcblk0p7 rootwait rootfstype=ext4 init=/sbin/init

// 加载fdt
Retrieving file: /rk3399.dtb
61714 bytes read in 54 ms (1.1 MiB/s)

// ==> 如果打包时没有ramdisk，就不会有ramdisk信息打印; 否则这⾥也会有打印

### Flattened Device Tree blob at 01f00000
   Booting using the fdt blob at 0x1f00000
   Loading Device Tree to 000000007df14000, end 000000007df26111 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
......
U-Boot 2017.09-03352-gb1265b5 (Jul 12 2019 - 09:57:24 +0800)

Model: Rockchip RK3399 Evaluation Board
PreSerial: 2
DRAM:  2 GiB
Sysmem: init
Relocation Offset is: 7dbe2000
Using default environment

......

Net:   eth0: ethernet@fe300000
Hit key to stop autoboot('CTRL+C'):  0 ANDROID: reboot reason: "recovery"
// 不是Android格式固件
Not AVB images, AVB skip
** Invalid Android Image header **
Android image load failed
Android boot failed, error -1.
boot mode: recovery

// 不是RK格式固件
=Booting Rockchip format image=
kernel: invalid image tag(0x45435352)
boot_rockchip_image kernel part read error

// 不是DISTRO格式固件。后⾯所有的打印都来在distro加载命令，因为distro命令会试图从mmc、nand、net、
// usb等所有我们预先定义的设备（详⻅rockchip-common.h中的宏定义：BOOT_TARGET_DEVICES）中去寻
// 找distro固件，即逐⼀扫描进⾏查找
switch to partitions #0, OK
mmc0(part 0) is current device
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
starting USB...
USB0:   Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.10
USB1:   Register 2000140 NbrPorts 2
Starting the controller
USB XHCI 1.10
USB2:   USB EHCI 1.00
USB3:   USB OHCI 1.0
USB4:   USB EHCI 1.00
USB5:   USB OHCI 1.0
scanning bus 0 for devices... 1 USB Device(s) found
scanning bus 1 for devices... 1 USB Device(s) found
scanning bus 2 for devices... 1 USB Device(s) found
scanning bus 3 for devices... 1 USB Device(s) found
scanning bus 4 for devices... 1 USB Device(s) found
scanning bus 5 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found

Device 0: unknown device
ethernet@fe300000 Waiting for PHY auto negotiation to complete......... TIMEOUT !
Could not initialize PHY ethernet@fe300000
missing environment variable: pxeuuid
missing environment variable: bootfile
Retrieving file: pxelinux.cfg/01-7a-1d-33-50-3d-a1
ethernet@fe300000 Waiting for PHY auto negotiation to complete..
......

// 最终distro命令对所有可能的存储介质都扫描后也找不到固件，就停在U-Boot命令⾏模式
=>

/dts-v1/;

/ {
    description = "Configuration to load ATF before U-Boot";
    #address-cells = <1>;

    images {
        uboot@1 {
            description = "U-Boot (64-bit)";
            data = /incbin/("u-boot-nodtb.bin");
            type = "standalone";
            os = "U-Boot";
            arch = "arm64";
            compression = "none";
            load = <0x00200000>;
        };

        atf@1 {
            description = "ARM Trusted Firmware";
            data = /incbin/("bl31_0x00010000.bin");
            type = "firmware";
            arch = "arm64";
            os = "arm-trusted-firmware";
            compression = "none";
            load = <0x00010000>;
            entry = <0x00010000>;
        };

        atf@2 {
            description = "ARM Trusted Firmware";
            data = /incbin/("bl31_0xff091000.bin");
            type = "firmware";
            arch = "arm64";
            os = "arm-trusted-firmware";
            compression = "none";
            load = <0xff091000>;
        };

        optee@1 {
            description = "OP-TEE";
            data = /incbin/("bl32.bin");
            type = "firmware";
            arch = "arm64";
            os = "op-tee";
            compression = "none";
            load = <0x08400000>;
        };

        fdt@1 {
            description = "rk3328-evb.dtb";
            data = /incbin/("arch/arm/dts/rk3328-evb.dtb");
            type = "flat_dt";
            compression = "none";
        };
    };

    configurations {
        default = "config@1";
        config@1 {
            description = "rk3328-evb.dtb";
            firmware = "atf@1";
            loadables = "uboot@1", "atf@2", "optee@1" ;
            fdt = "fdt@1";
        };
    };
};

                          mkimage + dtc
[u-boot.its] + [images]        ==>         [u-boot.itb]

cjh@ubuntu:~/uboot-nextdev/u-boot$ fdtdump u-boot.itb | less

/dts-v1/;
// magic:               0xd00dfeed
// totalsize:           0x497 (1175)
// off_dt_struct:       0x38
// off_dt_strings:      0x414
// off_mem_rsvmap:      0x28
// version:             17
// last_comp_version:   16
// boot_cpuid_phys:     0x0
// size_dt_strings:     0x83
// size_dt_struct:      0x3dc

/ {
    timestamp = <0x5d099c85>;
    description = "Configuration to load ATF before U-Boot";
    #address-cells = <0x00000001>;
    images {
        uboot@1 {
            data-size = <0x0009f8a8>;
            data-offset = <0x00000000>;
            description = "U-Boot (64-bit)";
            type = "standalone";
            os = "U-Boot";
            arch = "arm64";
            compression = "none";
            load = <0x00600000>;
        };
        atf@1 {
            data-size = <0x0000c048>;   // 编译过程⾃动增加了该字段，描述atf@1固件⼤⼩
            data-offset = <0x0009f8a8>; // 编译过程⾃动增加了该字段，描述atf@1固件偏移
            description = "ARM Trusted Firmware";
            type = "firmware";
            arch = "arm64";
            os = "arm-trusted-firmware";
            compression = "none";
            load = <0x00010000>;
            entry = <0x00010000>;
        };
        atf@2 {
            data-size = <0x00002000>;
            data-offset = <0x000ab8f0>;
            description = "ARM Trusted Firmware";
            type = "firmware";
            arch = "arm64";
            os = "arm-trusted-firmware";
            compression = "none";
            load = <0xfff82000>;
        };
        fdt@1 {
            data-size = <0x00005793>;
            data-offset = <0x000ad8f0>;
            description = "rk3308-evb.dtb";
            type = "flat_dt";
            ......
        };
        ......
    };
};

./doc/uImage.FIT/

CONFIG_SPL_LOAD_RKFW           // 使能开关
CONFIG_RKFW_TRUST_SECTOR       // trust.img分区地址，需要和分区表的定义保持⼀致
CONFIG_RKFW_U_BOOT_SECTOR      // uboot.img分区地址，需要和分区表的定义保持⼀致

./include/spl_rkfw.h
./common/spl/spl_rkfw.c

/ {
    aliases {
        mmc0 = &emmc;
        mmc1 = &sdmmc;
    };

    chosen {
        u-boot,spl-boot-order = &sdmmc, &nandc, &emmc;
        stdout-path = &uart2;
    };
    ......
};

  // 编译u-boot
  ......
  DTC     arch/arm/dts/rk3399-puma-ddr1866.dtb
  DTC     arch/arm/dts/rv1108-evb.dtb
make[2]: `arch/arm/dts/rk3328-evb.dtb' is up to date.
  SHIPPED dts/dt.dtb
  FDTGREP dts/dt-spl.dtb
  CAT     u-boot-dtb.bin
  MKIMAGE u-boot.img
  COPY    u-boot.dtb
  MKIMAGE u-boot-dtb.img
  COPY    u-boot.bin

  // 编译spl，有独⽴的spl/⽬录
  LD      spl/arch/arm/cpu/built-in.o
  CC      spl/board/rockchip/evb_rk3328/evb-rk3328.o
  LD      spl/dts/built-in.o
  CC      spl/common/init/board_init.o
  COPY    tpl/u-boot-tpl.dtb
  CC      spl/cmd/nvedit.o
  CC      spl/env/common.o
  CC      spl/env/env.o
  .....
  LD      spl/drivers/block/built-in.o

  ......

./spl/u-boot-spl.bin

CONFIG_SPL_LIBDISK_SUPPORT=y
CONFIG_SPL_EFI_PARTITION=y
CONFIG_PARTITION_TYPE_GUID=y

./disk/part.c
./disk/part_efi.c

int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info);
int part_get_info_by_name(struct blk_desc *dev_desc,
                          const char *name, disk_partition_t *info);

CONFIG_SPL_AB=y

./common/spl/spl_ab.c

int spl_get_current_slot(struct blk_desc *dev_desc, char *partition, char *slot);
int spl_get_partitions_sector(struct blk_desc *dev_desc, char *partition,u32 *sectors);

chosen {
stdout-path = &uart2;
u-boot,spl-boot-order = &sdmmc, &sfc, &nandc, &emmc;
};

spi nor > spi nand > emmc > sd

sd > spi nor > spi nand > emmc

CONFIG_ROCKCHIP_PRELOADER_ATAGS=y

./arch/arm/include/asm/arch-rockchip/rk_atags.h
./arch/arm/mach-rockchip/rk_atags.c

int atags_set_tag(u32 magic, void *tagdata);
struct tag *atags_get_tag(u32 magic);

Maskrom -> ddr -> SPL -> Trust -> Kernel

CONFIG_SPL_PINCTRL_GENERIC=y
CONFIG_SPL_PINCTRL=y

./drivers/pinctrl/pinctrl-uclass.c
./drivers/pinctrl/pinctrl-generic.c
./drivers/pinctrl/pinctrl-rockchip.c

&pinctrl {
    u-boot,dm-spl;
};

&pcfg_pull_none_4ma {
    u-boot,dm-spl;
};

&pcfg_pull_up_4ma {
    u-boot,dm-spl;
};

&sdmmc {
    u-boot,dm-spl;
};

&sdmmc_pin {
    u-boot,dm-spl;
};

&sdmmc_clk {
    u-boot,dm-spl;
};

&sdmmc_cmd {
    u-boot,dm-spl;
};

&sdmmc_bus4 {
    u-boot,dm-spl;
};

&sdmmc_pwren {
    u-boot,dm-spl;
};

CONFIG_SPL_MMC_SUPPORT=y  // 默认已使能

./common/spl/spl_mmc.c

int spl_mmc_load_image(struct spl_image_info *spl_image,
                       struct spl_boot_device *bootdev);

// MTD 驱动⽀持
CONFIG_MTD=y
CONFIG_CMD_MTD_BLK=y
CONFIG_SPL_MTD_SUPPORT=y
CONFIG_MTD_BLK=y
CONFIG_MTD_DEVICE=y

// spi nand 驱动⽀持
CONFIG_MTD_SPI_NAND=y
CONFIG_ROCKCHIP_SFC=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y

// nand 驱动⽀持
CONFIG_NAND=y
CONFIG_CMD_NAND=y
CONFIG_NAND_ROCKCHIP=y /* NandC v6 可根据 TRM NANDC->NANDC_NANDC_VER 寄存器确认，0x00000801 */
//CONFIG_NAND_ROCKCHIP_V9=y  /* NandC v9 可根据 TRM NANDC->NANDC_NANDC_VER 寄存器确认，
0x56393030, 例如：RK3326/PX30 为此版本 */
CONFIG_SPL_NAND_SUPPORT=y
CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
CONFIG_SYS_NAND_U_BOOT_OFFS=0x8000
CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND=0x10000
// nand page size需要按真实⼤⼩定义，如果使⽤容量⼤于等于512MB的NAND，⼀般需要配置为4096
#define CONFIG_SYS_NAND_PAGE_SIZE   2048

// spi nor 驱动⽀持
CONFIG_CMD_SF=y
CONFIG_CMD_SPI=y
CONFIG_SPI_FLASH=y
CONFIG_SF_DEFAULT_MODE=0x1
CONFIG_SF_DEFAULT_SPEED=50000000
CONFIG_SPI_FLASH_GIGADEVICE=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_SPI_FLASH_MTD=y
CONFIG_ROCKCHIP_SFC=y
CONFIG_SPL_SPI_SUPPORT=y
CONFIG_SPL_MTD_SUPPORT=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y

./common/spl/spl_mtd_blk.c

int spl_mtd_load_image(struct spl_image_info *spl_image,
                       struct spl_boot_device *bootdev);

CONFIG_SPL_MISC=y
CONFIG_SPL_ROCKCHIP_SECURE_OTP=y

./drivers/misc/misc-uclass.c
./drivers/misc/rockchip-secure-otp.S

int misc_read(struct udevice *dev, int offset, void *buf, int size);
int misc_write(struct udevice *dev, int offset, void *buf, int size);

CONFIG_SPL_DM_CRYPTO=y

// 2选1，各平台的defconfig已默认使能对应配置。
CONFIG_SPL_ROCKCHIP_CRYPTO_V1=y
CONFIG_SPL_ROCKCHIP_CRYPTO_V2=y

./drivers/crypto/crypto-uclass.c
./drivers/crypto/rockchip/crypto_v1.c
./drivers/crypto/rockchip/crypto_v2.c
./drivers/crypto/rockchip/crypto_v2_pka.c
./drivers/crypto/rockchip/crypto_v2_util.c

u32 crypto_algo_nbits(u32 algo);
struct udevice *crypto_get_device(u32 capability);
int crypto_sha_init(struct udevice *dev, sha_context *ctx);
int crypto_sha_update(struct udevice *dev, u32 *input, u32 len);
int crypto_sha_final(struct udevice *dev, sha_context *ctx, u8 *output);
int crypto_sha_csum(struct udevice *dev, sha_context *ctx,
                    char *input, u32 input_len, u8 *output);
int crypto_rsa_verify(struct udevice *dev, rsa_key *ctx, u8 *sign, u8 *output);

chosen {
    stdout-path = &uart2;
};

&uart2 {
    u-boot,dm-pre-reloc;
    clock-frequency = <24000000>;
    status = "okay";
};

CONFIG_DEBUG_UART_BASE=0xff570000
CONFIG_ROCKCHIP_UART_MUX_SEL_M=2

Device Drivers ---> Serial drivers ---> (0xff570000) Base address of UART
ARM architecture ---> (2) UART mux select

CONFIG_ROCKCHIP_TPL_INIT_DRAM_TYPE=3

Device Drivers ---> (3) TPL select DRAM type

// 编译u-boot
......
DTC     arch/arm/dts/rv1108-evb.dtb
DTC     arch/arm/dts/rk3399-puma-ddr1866.dtb
DTC     arch/arm/dts/rv1126-evb.dtb
FDTGREP dts/dt.dtb
FDTGREP dts/dt-spl.dtb
FDTGREP dts/dt-tpl.dtb
CAT     u-boot-dtb.bin
MKIMAGE u-boot.img
COPY    u-boot.dtb
MKIMAGE u-boot-dtb.img
COPY    u-boot.bin
ALIGN   u-boot.bin

// 编译tpl，有独⽴的tpl/⽬录
......
CC      tpl/common/init/board_init.o
CC      tpl/disk/part.o
LD      tpl/common/init/built-in.o
......
LD      tpl/u-boot-tpl
......
OBJCOPY tpl/u-boot-tpl-nodtb.bin
COPY    tpl/u-boot-tpl.bin

./tpl/u-boot-tpl.bin

./make.sh rv1126

dd bs=4 skip=1 if=tpl/u-boot-tpl.bin of=tpl/u-boot-tpl-tag.bin && sed -i '1s/^/110B&/'
tpl/u-boot-tpl-tag.bin

./make.sh tpl

./doc/uImage.FIT/

/dts-v1/;

/ {
    description = "Simple image with OP-TEE support";
    #address-cells = <1>;

    images {
        uboot {
            description = "U-Boot";
            data = /incbin/("./u-boot-nodtb.bin");
            type = "standalone";
            os = "U-Boot";
            arch = "arm";
            compression = "none";
            load = <0x00400000>;
            hash {
                algo = "sha256";
            };
        };
        optee {
            description = "OP-TEE";
            data = /incbin/("./tee.bin");
            type = "firmware";
            arch = "arm";
            os = "op-tee";
            compression = "none";
            load = <0x8400000>;
            entry = <0x8400000>;
            hash {
                algo = "sha256";
            };
        };
        fdt {
            description = "U-Boot dtb";
            data = /incbin/("./u-boot.dtb");
            type = "flat_dt";
            compression = "none";
            hash {
                algo = "sha256";
            };
        };
    };

    // configurations 节点下可以定义任意多个不同的conf节点，但实际产品⽅案上我们只需要⼀个conf即可。
    configurations {
        default = "conf";
        conf {
            description = "Rockchip armv7 with OP-TEE";
            rollback-index = <0x0>;
            firmware = "optee";
            loadables = "uboot";
            fdt = "fdt";
            signature {
                algo = "sha256,rsa2048";
                padding = "pss";
                key-name-hint = "dev";
                sign-images = "fdt", "firmware", "loadables";
            };
        };
    };
};

                          mkimage + dtc
[u-boot.its] + [images]    =========>      [u-boot.itb]

cjh@ubuntu:~/uboot-nextdev/u-boot$ fdtdump fit/u-boot.itb | less

/dts-v1/;
// magic:       0xd00dfeed
// totalsize:       0x600 (1536)
// off_dt_struct:   0x48
// off_dt_strings:  0x48c
// off_mem_rsvmap:  0x28
// version:     17
// last_comp_version:   16
// boot_cpuid_phys: 0x0
// size_dt_strings: 0xc3
// size_dt_struct:  0x444

/memreserve/ 7f34d3411000 600;
/ {
    version = <0x00000001>;               // 新增固件版本号
    totalsize = <0x000bb600>;             // 新增字段描述整个itb⽂件的⼤⼩
    timestamp = <0x5ecb3553>;             // 新增当前固件⽣成时刻的时间戳
    description = "Simple image with OP-TEE support";
    #address-cells = <0x00000001>;
    images {
        uboot {
            data-size = <0x0007ed54>;     // 新增字段描述固件⼤⼩
            data-position = <0x00000a00>; // 新增字段描述固件偏移
            description = "U-Boot";
            type = "standalone";
            os = "U-Boot";
            arch = "arm";
            compression = "none";
            load = <0x00400000>;
            hash {
                // 新增固件的sha256校验和
                value = <0xeda8cd52 0x8f058118 0x00000003 0x35360000 0x6f707465 0x0000009f
0x00000091 0x00000000>;
                algo = "sha256";
            };
        };
        optee {
            data-size = <0x0003a058>;
            data-position = <0x0007f800>;
            description = "OP-TEE";
            type = "firmware";
            arch = "arm";
            os = "op-tee";
            compression = "none";
            load = <0x08400000>;
            entry = <0x08400000>;
            hash {
                value = <0xa569b7fc 0x2450ed39 0x00000003 0x35360000 0x66647400 0x00001686
0x000b9a00 0x552d426f>;
                algo = "sha256";
            };
        };
        fdt {
            data-size = <0x00001686>;
            data-position = <0x000b9a00>;
            description = "U-Boot dtb";
            type = "flat_dt";
            compression = "none";
            hash {
                value = <0x0f718794 0x78ece7b2 0x00000003 0x35360000 0x00000001 0x6e730000
0x636f6e66 0x00000000>;
                algo = "sha256";
            };
        };
    };
    configurations {
        default = "conf";
        conf {
            description = "Rockchip armv7 with OP-TEE";
            rollback-index = <0x00000001>; // 固件防回滚版本号，没有⼿动指定时默认为0
            firmware = "optee";
            loadables = "uboot";
            fdt = "fdt";
            signature {
                algo = "sha256,rsa2048";
                padding = "pss";
                key-name-hint = "dev";
                sign-images = "fdt", "firmware", "loadables";
            };
        };
    };
};

            fdt blob
|-----------------------------------|
|   |------|  |------|  |------|    |
|   | img0 |  | img1 |  | img2 |    | 结构1：image在fdt_blob内，即:itb = fdt_blob(含img)
|   |------|  |------|  |------|    |
|-----------------------------------|

|--------------|------|------|------|
|              |      |      |      |
|   fdt blob   | img0 | img1 | img2 | 结构2：image在fdt_blob外，即itb = fdt_blob + img
|              |      |      |      |
|--------------|------|------|------|

// 框架代码
./common/image.c
./common/image-fit.c
./common/spl/spl_fit.c

// 平台代码：
./arch/arm/mack-rockchip/fit.c
./cmd/bootfit.c

// ⼯具代码
./tools/mkimage.c
./tools/fit_image.c

// U-Boot阶段⽀持FIT
CONFIG_ROCKCHIP_FIT_IMAGE=y

// U-Boot阶段：安全启动、防回滚、硬件crypto
CONFIG_FIT_SIGNATURE=y
CONFIG_FIT_ROLLBACK_PROTECT=y
CONFIG_DM_CRYPTO=y
CONFIG_FIT_HW_CRYPTO=y
// SPL阶段：安全启动、防回滚、硬件crypto
CONFIG_SPL_FIT_SIGNATURE=y
CONFIG_SPL_FIT_ROLLBACK_PROTECT=y
CONFIG_SPL_DM_CRYPTO=y
CONFIG_SPL_FIT_HW_CRYPTO=y

// uboot.img镜像包含⼏份uboot.itb，单份uboot.itb多⼤
CONFIG_SPL_FIT_IMAGE_KB=2048
CONFIG_SPL_FIT_IMAGE_MULTIPLE=2

// uboot⼯程编译后默认输出fit格式的uboot.img; 否则为传统的RK格式uboot.img和trust.img。
CONFIG_ROCKCHIP_FIT_IMAGE_PACK=y

CONFIG_RSA_N_SIZE
CONFIG_RSA_E_SIZE
CONFIG_RSA_C_SIZE

// U-Boot 安全启动和防回滚机制
CONFIG_FIT_SIGNATURE=y
CONFIG_FIT_ROLLBACK_PROTECT=y

// SPL 安全启动和防回滚机制
CONFIG_SPL_FIT_SIGNATURE=y
CONFIG_SPL_FIT_ROLLBACK_PROTECT=y

// ⽂件：RKTRUST/RV1126TOS_TB.ini，⽤于快速开机产品，启⽤了MCU。
[TOS]
TOSTA=bin/rv11/rv1126_tee_ta_tb_v1.04.bin
ADDR=0x00040000

// MCU配置格式：固件路径，启动地址，状态(okay或disabled)。
// 如果为disabled，则mcu不会被打包进uboot.img中。
[MCU]
MCU=bin/rv11/rv1126_mcu_v1.02.bin,0x108000,okay

// ⽂件：RKTRUST/RV1126TOS_SPI_NOR_TINY.ini，⽤于⼩容量SPI Nor产品。
[TOS]
TOS=bin/rv11/rv1126_tee_v1.02.bin
ADDR=0x08400000
[MCU]
MCU=bin/rv11/rv1126_mcu_v1.00.bin,0x208000,disabled

// 压缩格式：gzip或none，不存在如下配置字段则默认⾮压缩。
[COMPRESSION]
COMPRESSION=gzip

device/rockchip/[platform]/xxx.its  // [platform]是平台⽬录

// 核⼼打包⼯具，编译完成后会⾃动⽣成，U-Boot和rkbin仓库下都有（U-Boot仓库下是实时编译⽣成）。
./tools/mkimage
// 固件打包脚本
./make.sh
// 固件重签名脚本
scripts/fit-resign.sh
// 固件解包脚本
scripts/fit-unpack.sh
// 固件替换脚本
./scripts/fit-repack.sh

./make.sh rv1126 --spl-new --uboot-version 10  // 可不指定 --spl-new和--uboot-version

  ......
  CC      spl/common/spl/spl.o
  CC      spl/lib/display_options.o
  LD      spl/common/spl/built-in.o
  LD      spl/lib/built-in.o
  LD      spl/u-boot-spl
  OBJCOPY spl/u-boot-spl-nodtb.bin
  CAT     spl/u-boot-spl-dtb.bin
  COPY    spl/u-boot-spl.bin
  CFGCHK  u-boot.cfg

out:rv1126_spl_loader_v1.00.100.bin
fix opt:rv1126_spl_loader_v1.00.100.bin
merge success(rv1126_spl_loader_v1.00.100.bin)
/home4/cjh/uboot-nextdev

// ⽣成 rv1126_spl_loader_v1.00.100.bin（⽤spl替代了RK平台传统的miniloader
// loader ini ⽂件来源
pack loader(SPL) okay! Input: /home4/cjh/rkbin/RKBOOT/RV1126MINIALL.ini
// 来⾃ --spl-new 参数的提⽰；⽤⼾可以选择不加这个参数。
pack loader with new: spl/u-boot-spl.bin

// ⽣成 uboot.img（包含trust和uboot），版本号为10
Image(no-signed, version=10):  uboot.img (FIT with uboot, trust...) is ready
// trust ini⽂件来源
pack uboot.img okay! Input: /home4/cjh/rkbin/RKTRUST/RV1126TOS.ini

Platform RV1126 is build OK, with exist .config

CONFIG_SPL_FIT_IMAGE_KB=2048    // 单份itb⼤⼩
CONFIG_SPL_FIT_IMAGE_MULTIPLE=2 // 打包的份数

cjh@ubuntu:~/uboot-nextdev$ fdtdump u-boot.dtb | less
/dts-v1/;
....

/ {
    #address-cells = <0x00000001>;
    #size-cells = <0x00000001>;
    compatible = "rockchip,rv1126-evb", "rockchip,rv1126";
    model = "Rockchip RV1126 Evaluation Board";

    // signature节点由mkimage⼯具⾃动插⼊⽣成，节点⾥保存了RSA-SHA算法类型、RSA核⼼因⼦参数等信息。
    signature {
        key-dev {
            required = "conf";
            algo = "sha256,rsa2048";
            rsa,np = <0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x1327f633 0x00000003 0x00000003 0x00000003 0xc7aead6a 0xb4c79f40 0xa82bdf76
0xfb2f8387 0xa1e06dce 0xd451a706 0xc7f865e3 0x3e2d7ca8 0x6a71762e 0x125f1828 0x36ab1a41
0xb7e9e852 0x7bd0011a 0x7279e0b8 0xf37e189c 0x8cf00963 0x00000100 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000377 0x00000004
0x00000004 0x00000004 0x00000002 0x00000003 0x69616c40 0x00000003 0x6d634066 0x00000010
0x66633630 0x73797363>;
            rsa,c = <0x00000000>;
            rsa,r-squared = <0x00000000>;
            rsa,modulus = <0xc25ae693 0xc359f2a4 0xa866c89d 0xb7b1994f 0xf9f9f690 0x518d54a7
0xda0b83e8 0x06606e12 0x6ad1cbf9 0x92438edd 0x81e039c0 0x5d7322cc 0x124cdc80 0xa0c3288a
0x9265c3ae 0x6ac47a4b 0x00000003 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000008 0x00000003 0x00000003 0x00000003 0x00000002
0x73657300 0x2f736572 0x00000000 0x2f64776d 0x00000003 0x6d634066 0x00000001 0x30303000
0x726f636b 0x67726600 0x00000008 0x00000003 0x00000004 0x00000001 0x30303000 0x726f636b
0x706d7567 0x00000003 0x00001000 0x00000003 0x00000002 0x6e616765 0x30000000 0x726f636b
0x706d7500 0x00000008>;
            rsa,exponent-BN = <0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000003 0x00010001 0xe95771c5 0x00000800 0x64657600
0x616c6961 0x0000002c 0x30303030 0x00000034 0x30303000 0x2f64776d 0x00000002 0x65303030
0x0000001b 0x3132362d 0x00000003 0x00020000 0x00000003 0x00000002 0x65303230 0x0000001b
0x3132362d 0x6e000000 0xfe020000 0x00000042 0x0000006d 0x722d6d61 0x65303030 0x0000001b
0x3132362d 0x00000003 0x00001000 0x00000002 0x6e74726f 0x30000000 0x726f636b 0x706d7563
0x0000003e 0x00000004 0x00000004 0x00000004 0x00000000 0x00000050 0x636c6f63 0x40666634
0x00000014 0x2c727631 0x00000008>;
            rsa,exponent = <0x00000000 0x00000368>;
            rsa,n0-inverse = <0xe95771c5>;
            rsa,num-bits = <0x00000800>;
            key-name-hint = "dev";
        };
    };

cjh@ubuntu:~/uboot-nextdev$ fdtdump uboot.img | less
/dts-v1/;
......

    configurations {
        default = "conf";
        conf {
            description = "Rockchip armv7 with OP-TEE";
            // 当前的固件版本号
            rollback-index = <0x0000001c>;
            firmware = "optee";
            loadables = "uboot";
            fdt = "fdt";

            // 被签名内容和签名结果，由mkimage⾃动插⼊
            signature {
                hashed-strings = <0x00000000 0x000000da>;
                // 指定被签名内容
                hashed-nodes = "/", "/configurations", "/configurations/conf",
"/images/fdt", "/images/fdt/hash", "/images/optee", "/images/optee/hash", "/images/uboot",
"/images/uboot/hash";
                // 进⾏签名的时间、签名者、版本
                timestamp = <0x5e9427b4>;
                signer-version = "2017.09-g8bb63db-200413-dirty #cjh";
                signer-name = "mkimage";
                // 签名结果！！(采⽤sha256+rsa2048)
                value = <0x78397d5d 0xb9219a0b 0xa7cb91a7 0xe1f32867 0x62719d9b 0x8901200c
0xfcbac03a 0x1295ccc8 0x1cff9608 0xdf5f69d2 0x21391225 0x7af10ca7 0x5527864f 0xb13f527e
0xddf9ee62 0xea50199d 0x00000003 0x35362c72 0x00000004 0x00000017 0x77617265 0x00000002
0x00000009 0x23616464 0x6d616765 0x73006172 0x6f6e006c 0x72790064 0x61636b2d 0x7265006c
0x006b6579 0x69676e2d 0x706f7369 0x7a650074 0x75650073 0x69676e65 0x73686564 0x642d7374
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000 0x00000000
0x00000000 0x00000000>;
                algo = "sha256,rsa2048";
                key-name-hint = "dev";
                sign-images = "fdt", "firmware", "loadables";
        };
    };
};

// 1. 放key的⽬录：keys
mkdir -p keys

// 2. 使⽤RK的"rk_sign_tool"⼯具⽣成RSA2048的私钥privateKey.pem和publicKey.pem（请参考
rk_sign_tool的使⽤⼿册），分别更名存放为：keys/dev.key和keys/dev.pubkey。

// 3. 使⽤-x509和私钥⽣成⼀个⾃签名证书：keys/dev.crt （效果本质等同于公钥）
openssl req -batch -new -x509 -key keys/dev.key -out keys/dev.crt

dev.crt  dev.key  dev.pubkey

// 必选。
CONFIG_FIT_SIGNATURE=y
CONFIG_SPL_FIT_SIGNATURE=y

// 可选。
CONFIG_FIT_ROLLBACK_PROTECT=y       // boot.img防回滚
CONFIG_SPL_FIT_ROLLBACK_PROTECT=y   // uboot.img防回滚

./make.sh rv1126 --spl-new --boot_img boot.img --recovery_img recovery.img

......

// 编译完成后，⽣成已签名的uboot.img和boot.img。
start to sign rv1126_spl_loader_v1.00.100.bin
......
sign loader ok.
......
Image(signed, version=0):  uboot.img (FIT with uboot, trust...) is ready
Image(signed, version=0):  recovery.img (FIT with kernel, fdt, resource...) is ready
Image(signed, version=0):  boot.img (FIT with kernel, fdt, resource...) is ready
Image(signed):  rv1126_spl_loader_v1.05.106.bin (with spl, ddr, usbplug) is ready
pack uboot.img okay! Input: /home4/cjh/rkbin/RKTRUST/RV1126TOS.ini

Platform RV1126 is build OK, with new .config(make rv1126-secure_defconfig)

// 指定 uboot.img和boot.img的最⼩版本号分别为10、12.
./make.sh rv1126 --spl-new --boot_img boot.img --recovery_img recovery.img --rollback-index-
uboot 10 --rollback-index-boot 12 --rollback-index-recovery 12

......

// 编译完成后，⽣成已签名的uboot.img和boot.img，且包含防回滚版本号。
start to sign rv1126_spl_loader_v1.00.100.bin
......
sign loader ok.
......
Image(signed, version=0, rollback-index=10):  uboot.img (FIT with uboot, trust) is ready
Image(signed, version=0, rollback-index=12):  recovery.img (FIT with kernel, fdt,
resource...) is ready
Image(signed, version=0, rollback-index=12):  boot.img (FIT with kernel, fdt, resource...)
is ready
Image(signed):  rv1126_spl_loader_v1.00.100.bin (with spl, ddr, usbplug) is ready

// 指定uboot.img和boot.img的最⼩版本号分别为10、12.
// 要求SPL阶段把公钥hash烧写到OTP/eFUSE中。
./make.sh rv1126 --spl-new --boot_img boot.img --recovery_img recovery.img --rollback-index-
uboot 10 --rollback-index-boot 12 --rollback-index-recovery 12 --burn-key-hash

......

// 使能 burn-key-hash
### spl/u-boot-spl.dtb: burn-key-hash=1

// 编译完成后，⽣成已签名的uboot.img和boot.img，且包含防回滚版本号。
start to sign rv1126_spl_loader_v1.00.100.bin
......
sign loader ok.
......
Image(signed, version=0, rollback-index=10):  uboot.img (FIT with uboot, trust) is ready
Image(signed, version=0, rollback-index=12):  recovery.img (FIT with kernel, fdt,
resource...) is ready
Image(signed, version=0, rollback-index=12):  boot.img (FIT with kernel, fdt, resource...)
is ready
Image(signed):  rv1126_spl_loader_v1.00.100.bin (with spl, ddr, usbplug) is ready

BW=32 Col=10 Bk=8 CS0 Row=15 CS=1 Die BW=16 Size=1024MB
out
U-Boot SPL board init
U-Boot SPL 2017.09-gacb99c5-200408-dirty #cjh (Apr 09 2020 - 20:51:21)
unrecognized JEDEC id bytes: 00, 00, 00

Trying to boot from MMC1
// SPL完成签名校验
sha256,rsa2048:dev+
// 防回滚检测：当前uboot.img固件版本号是10，本机的最⼩版本号是9
rollback index: 10 >= 9, OK
// SPL完成各⼦镜像的hash校验
### Checking optee ... sha256+ OK
### Checking uboot ... sha256+ OK
### Checking fdt ... sha256+ OK

Jumping to U-Boot via OP-TEE
I/TC:
E/TC:0 0 plat_rockchip_pmu_init:2003 0
E/TC:0 0 plat_rockchip_pmu_init:2006 cpu off
E/TC:0 0 plat_rockchip_pmusram_prepare:1945 pmu sram prepare 0x14b10000 0x8400880 0x1c
E/TC:0 0 plat_rockchip_pmu_init:2020 pmu sram prepare
E/TC:0 0 plat_rockchip_pmu_init:2056 remap
I/TC: OP-TEE version: 3.6.0-233-g35ecf936 #1 Tue Mar 31 08:46:13 UTC 2020 arm
I/TC: Next entry point address: 0x00400000
I/TC: Initialized

U-Boot 2017.09-gacb99c5-200408-dirty #cjh (Apr 09 2020 - 20:51:21 +0800)

Model: Rockchip RV1126 Evaluation Board
PreSerial: 2
DRAM:  1023.5 MiB
Sysmem: init
Relocation Offset: 00000000, fdt: 3df404e0
Using default environment

dwmmc@ffc50000: 0
Bootdev(atags): mmc 0
MMC0: HS200, 200Mhz
PartType: EFI
boot mode: normal
conf: sha256,rsa2048:dev+
resource: sha256+
DTB: rk-kernel.dtb
FIT: signed, conf required
HASH(c): OK

I2c0 speed: 400000Hz
PMIC:  RK8090 (on=0x10, off=0x00)
vdd_logic 800000 uV
vdd_arm 800000 uV
vdd_npu init 800000 uV
vdd_vepu init 800000 uV
......

Hit key to stop autoboot('CTRL+C'):  0
### Booting FIT Image at 0x3d8122c0 with size 0x0052b200
Fdt Ramdisk skip relocation
### Loading kernel from FIT Image at 3d8122c0 ...
   Using 'conf' configuration
   // uboot完成签名校验
   Verifying Hash Integrity ... sha256,rsa2048:dev+ OK
   // 防回滚检测：当前boot.img固件版本号是22，本机的最⼩版本号是21
   Verifying Rollback-index ... 22 >= 21, OK
   Trying 'kernel' kernel subimage
     Description:  Kernel for arm
     Type:         Kernel Image
     Compression:  uncompressed
     Data Start:   0x3d8234c0
     Data Size:    5349248 Bytes = 5.1 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: 0x02008000
     Entry Point:  0x02008000
     Hash algo:    sha256
     Hash value:   64b4a0333f7862967be052a67ee3858884fcefebf4565db5c3828a941a15f34a
   Verifying Hash Integrity ... sha256+ OK  // 完成kernel的hash校验
### Loading ramdisk from FIT Image at 3d8122c0 ...
   Using 'conf' configuration
   Trying 'ramdisk' ramdisk subimage
     Description:  Ramdisk for arm
     Type:         RAMDisk Image
     Compression:  uncompressed
     Data Start:   0x3dd3d4c0
     Data Size:    0 Bytes = 0 Bytes
     Architecture: ARM
     OS:           Linux
     Load Address: 0x0a200000
     Entry Point:  unavailable
     Hash algo:    sha256
     Hash value:   e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
   Verifying Hash Integrity ... sha256+ OK  // 完成ramdisk的hash校验
   Loading ramdisk from 0x3dd3d4c0 to 0x0a200000
### Loading fdt from FIT Image at 3d8122c0 ...
   Using 'conf' configuration
   Trying 'fdt' fdt subimage
     Description:  Device tree blob for arm
     Type:         Flat Device Tree
     Compression:  uncompressed
     Data Start:   0x3d812ec0
     Data Size:    66974 Bytes = 65.4 KiB
     Architecture: ARM
     Load Address: 0x08300000
     Hash algo:    sha256
     Hash value:   8fb1f170766270ed4f37cce4b082a51614cb346c223f96ddfe3526fafc5729d7
   Verifying Hash Integrity ... sha256+ OK // 完成fdt的hash校验
   Loading fdt from 0x3d812ec0 to 0x08300000
   Booting using the fdt blob at 0x8300000
   Loading Kernel Image from 0x3d8234c0 to 0x02008000 ... OK
   Using Device Tree in place at 08300000, end 0831359d
Adding bank: 0x00000000 - 0x08400000 (size: 0x08400000)
Adding bank: 0x0848a000 - 0x40000000 (size: 0x37b76000)
Total: 236.327 ms

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0xf00
[    0.000000] Linux version 4.19.111 (cjh@ubuntu) (gcc version 6.3.1 20170404 (Linaro GCC
6.3-2017.05)) #28 SMP PREEMPT Wed Mar 25 16:03:27 CST 2020
[    0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d

91b5d8722da scripts: Add fit-sign.sh
554ddf99bfb scripts: fit-core.sh: Add fit_signcfg export support
cb458c93a05 scripts: fit-core.sh: Add --no-sign support
bc02f36c3b2 scripts: fit-unpack: Support none digest node

44216040fad tools: build mkimage/fit_check_sign with -static
88d46662a9b tools: Add fit sign tools support

./make.sh rk3588 --spl-new --no-sign   # 必须追加 --spl-new --no-sign

uboot.img
rk3588_spl_loader_v1.18.113.bin
fit/fit_signcfg/

$ mkdir workspace
$ cd workspace
$ mkdir keys src output

$ cp ~/rkbin/tools/ ./ -R

cjh@sys2:/home4/cjh/rkbin/workspace$ tree
├── keys
│   ├── dev.crt
│   ├── dev.key
│   └── dev.pubkey
├── output
├── src
│   ├── fit_signcfg
│   │   ├── MINIALL.ini
│   │   ├── sign.readonly_config
│   │   └── test_images.tar.gz
│   ├── boot.img
│   ├── recovery.img
│   ├── rk3588_spl_loader_v1.18.113.bin
│   └── uboot.img
└── tools
    ├── bmp2gray16
    ├── boot_merger
    ├── burner_image_kits
    │   ├── make.sh
    │   ├── make_slc_nand.sh
    ......

$ ./tools/fit-sign.sh --key-dir keys/ --src-dir src/ --out-dir output/

$ tree output/
output/
├── boot.img
├── recovery.img
├── rk3588_spl_loader_v1.18.113.bin
└── uboot.img

$ ./tools/fit-sign.sh -h

Usage:
    ./tools/fit-sign.sh [args]

Args:
    --key-dir                  <dir>                         | Mandatory
    --src-dir                  <dir>                         | Mandatory
    --out-dir                  <dir>                         | Mandatory
    --burn-key-hash                                          | Optional
    --rollback-index           <image1 n1> <image2 n2> ...   | Optional
    --version                  <image1 n1> <image2 n2> ...   | Optional

./tools/fit-sign.sh --key-dir keys/ --src-dir src/ --out-dir output/ --version uboot.img 1
boot.img 3 --rollback-index uboot.img 3 boot.img 5

$ tree fit_signcfg/
fit_signcfg/
├── MINIALL.ini            # 打包loader⽤的ini⽂件。
├── sign.readonly_config   # 当前编译配置、uboot、loader版本相关的记录⽂件。
└── test_images.tar.gz     # 暂时⽆⽤，忽略。

cjh@ubuntu:~/uboot-nextdev$ fdtdump uboot.img | less
/dts-v1/;
......

configurations {
        default = "conf";
        conf {
            description = "Rockchip armv7 with OP-TEE";
            rollback-index = <0x0000001c>;
            firmware = "optee";
            loadables = "uboot";
            fdt = "fdt";

            signature {
                hashed-strings = <0x00000000 0x000000da>;
                // 这些节点的内容都会纳⼊被签名数据
                hashed-nodes = "/", "/configurations/conf", "/images/fdt",
"/images/fdt/hash", "/images/optee", "/images/optee/hash", "/images/uboot",
"/images/uboot/hash";
                ......

cjh@ubuntu:~/uboot-nextdev/u-boot$ fdtdump fit/u-boot.itb | less

/dts-v1/;
......

/ {
    totalsize = <0x000bb600>;
    timestamp = <0x5ecb3553>;
    description = "Simple image with OP-TEE support";
    #address-cells = <0x00000001>;
    images {
        uboot {
            data-size = <0x0007ed54>;
            data-position = <0x00000a00>;
            description = "U-Boot";
            type = "standalone";
            os = "U-Boot";
            arch = "arm";
            compression = "none";
            load = <0x00400000>;
            hash {
                // uboot镜像的hash，由mkimage⼯具⾃动计算⽣成
                value = <0xeda8cd52 0x8f058118 0x00000003 0x35360000 0x6f707465
0x0000009f 0x00000091 0x00000000>;
                algo = "sha256";
            };
        };
        ......

./make.sh rv1126 --spl-new --boot_img boot.img --rollback-index-uboot 10 --rollback-index-
boot 12 --no-check

// 被签名内容(data2sign意为：data to sign)
fit/uboot.data2sign
fit/boot.data2sign

// 已签名itb⽂件（使⽤临时私钥），我们的img⽂件由它们进⾏多备份后获得。
fit/uboot.itb
fit/boot.itb

openssl dgst -sha256 -sign dev.key -sigopt rsa_padding_mode:pss -out uboot.sig
uboot.data2sign

./scripts/fit-resign.sh -f fit/uboot.itb -s uboot.sig // 会⽣成新的uboot.img，⽤于烧写

cjh@ubuntu:~/uboot-nextdev$ ./scripts/fit-unpack.sh -f boot.img -o out
Unpack to directory out:
  fdt                 : 82813 bytes... sha256+
  kernel              : 5844640 bytes... sha256+
  ramdisk             : 0 bytes... sha256+
  resource            : 120832 bytes... sha256+

cjh@ubuntu:~/uboot-nextdev$ ./scripts/fit-unpack.sh -f uboot_legacy.img -o out/

uboot_legacy.img: Device Tree Blob version 17, size=2560, boot CPU=0, string block
size=197, DT structure block size=2204
Unpack to directory out:
  uboot               : 576352 bytes... sha256+
  atf-1               : 69089 bytes... sha256+
  atf-2               : 36864 bytes... sha256+
  atf-3               : 24576 bytes... sha256+
  optee               : 228134 bytes... sha256+
  fdt                 : 8867 bytes... sha256+

cjh@ubuntu:~/uboot-nextdev$ ./scripts/fit-repack.sh -f uboot.img -d out/

uboot.img: Device Tree Blob version 17, size=2560, boot CPU=0, string block size=197,
DT structure block size=2204
Unpack to directory out/repack/:
  uboot               : 576352 bytes... sha256+
  atf-1               : 69089 bytes... sha256+
  atf-2               : 36864 bytes... sha256+
  atf-3               : 24576 bytes... sha256+
  optee               : 228134 bytes... sha256+
  fdt                 : 8867 bytes... sha256+
  ......
Image(repack):  uboot.img is ready

// 必选。
CONFIG_FIT_SIGNATURE=y
CONFIG_SPL_FIT_SIGNATURE=y

// 可选。
CONFIG_FIT_ROLLBACK_PROTECT=y       // boot.img防回滚
CONFIG_SPL_FIT_ROLLBACK_PROTECT=y   // uboot.img防回滚

mkdir -p keys
../rkbin/tools/rk_sign_tool kk --bits 2048 --out .
cp privateKey.pem keys/dev.key && cp publicKey.pem keys/dev.pubkey
openssl req -batch -new -x509 -key keys/dev.key -out keys/dev.crt

// Linux：拷⻉boot.img，recovery.img到u-boot⽂件下，执⾏下列脚本签名loader,uboot,boot,recovery，设
置uboot,boot,recovery的防版本回滚号，注意防版本回滚号依据需要配置
./make.sh rv1126 --spl-new --boot_img boot.img --recovery_img recovery.img --rollback-index-
uboot 1 --rollback-index-boot 2

// Android：签名loader,uboot，设置uboot的防版本回滚号，注意防版本回滚号依据需要配置
./make.sh rv1126 --spl-new --rollback-index-uboot 1

Can't load XXXXXX//.rnd into RNG

touch ~/.rnd

// Linux：拷⻉boot.img，recovery.img到u-boot⽂件下，执⾏下列脚本签名loader,uboot,boot,recovery，设
置uboot,boot,recovery的防版本回滚号，注意防版本回滚号依据需要配置，使能烧写key hash
./make.sh rv1126 --spl-new --boot_img boot.img --recovery_img recovery.img --rollback-index-
uboot 1 --rollback-index-boot 2 --burn-key-hash

// Android：签名loader,uboot，设置uboot的防版本回滚号，注意防版本回滚号依据需要配置，使能烧写key hash
./make.sh rv1126 --spl-new --rollback-index-uboot 1 --burn-key-hash

CONFIG_SPL_KERNEL_BOOT=y             // 开启快速开机功能
CONFIG_SPL_BLK_READ_PREPARE=y        // 开启预加载功能
CONFIG_SPL_MISC_DECOMPRESS=y         // 开启解压功能
CONFIG_SPL_ROCKCHIP_HW_DECOMPRESS=y

cat ramdisk | gzip -n -f -9 > ramdisk.gz

ramdisk {
    data = /incbin/("./images-tb/ramdisk.gz");
    compression = "gzip"; // 压缩格式
    type = "ramdisk";
    arch = "arm";
    os = "linux";
    preload = <1>;        // 预加载标志
    comp = <0x5800000>;   // 加载地址
    load = <0x2800000>;   // 解压地址
    decomp-async;         // 异步解压
    hash {
        algo = "sha256";
        uboot-ignore = <1>; // 不做hash校验
    };
};

./make.sh rv1126-emmc-tb && ./make.sh --spl

[MCU]
MCU=bin/rv11/rv1126_mcu_v1.02.bin,0x108000,okay // 配置对应固件位置，启动地址和使能标志

https://10.10.10.29/admin/repos/rtos/rt-thread/rt-thread-amp
https://10.10.10.29/admin/repos/rk/mcu/hal

CONFIG_ROCKCHIP_THUNDER_BOOT=y           // 开启快速开机功能
CONFIG_ROCKCHIP_THUNDER_BOOT_MMC=y       // 开启⽀持emmc快速开机优化功能
CONFIG_ROCKCHIP_THUNDER_BOOT_SFC=y       // 开启⽀持spi nor快速开机优化功能
CONFIG_VIDEO_ROCKCHIP_THUNDER_BOOT_ISP=y // 开启⽀持ISP快速开机优化功能

memory: memory {
    device_type = "memory";
    reg = <0x00000000 0x20000000>; // 需要依据真实DDR容量预先定义，SPL不修正
};

reserved-memory {
    trust@0 {
        reg = <0x00000000 0x00200000>; // trust 空间
        no-map;
    };

    trust@200000 {
        reg = <0x00200000 0x00008000>;
    };

    ramoops@210000 {
        compatible = "ramoops";
        reg = <0x00210000 0x000f0000>;
        record-size = <0x20000>;
        console-size = <0x20000>;
        ftrace-size = <0x00000>;
        pmsg-size = <0x50000>;
    };

    rtos@300000 {
        reg = <0x00300000 0x00100000>; // 预留给⽤⼾端使⽤，没有使⽤可以删掉
        no-map;
    };

    ramdisk_r: ramdisk@2800000 {
        reg = <0x02800000 (48 * 0x00100000)>; // 解压源地址，可以依据实际⼤⼩进⾏更改
    };

    ramdisk_c: ramdisk@5800000 {
        reg = <0x05800000 (20 * 0x00100000)>; // 压缩源地址，可以依据实际⼤⼩进⾏更改
    };
};

/ {
        reserved-memory {
                mmc_ecsd: mmc@20f000 {
                        reg = <0x0020f000 0x00001000>; // SPL 给kernel上传ecsd区域
                };

                mmc_idmac: mmc@500000 {
                        reg = <0x00500000 0x00100000>; // 预加载ramdisk时，预留的idmac的内存区
域，预加载完成，该区域内存释放掉
                };
        };

        thunder_boot_mmc: thunder-boot-mmc {
                compatible = "rockchip,thunder-boot-mmc";
                reg = <0xffc50000 0x4000>;
                memory-region-src = <&ramdisk_c>;
                memory-region-dst = <&ramdisk_r>;
                memory-region-idmac = <&mmc_idmac>;
        };
};

/ {
        thunder_boot_spi_nor: thunder-boot-spi-nor {
                compatible = "rockchip,thunder-boot-sfc";
                reg = <0xffc90000 0x4000>;
                memory-region-src = <&ramdisk_c>;
                memory-region-dst = <&ramdisk_r>;
        };
};

CONFIG_RKIMG_ANDROID_BOOTMODE_LEGACY

commit a7774f5911624928ed1d9cfed5453aab206c512e
Author: Zhangbin Tong <zebulun.tong@rock-chips.com>
Date:   Thu Sep 6 17:35:16 2018 +0800

    common: boot_rkimg: set "androidboot.mode=" as "normal" or "charger"

    - The legacy setting rule is deprecated(Android SDK < 8.1).
    - Provide CONFIG_RKIMG_ANDROID_BOOTMODE_LEGACY to enable legacy setting.

    Change-Id: I5c8b442b02df068a0ab98ccc81a4f008ebe540c1
    Signed-off-by: Zhangbin Tong <zebulun.tong@rock-chips.com>
    Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

./scripts/mkbootimg
./scripts/unpack_bootimg
./scripts/repack-bootimg
./scripts/unpack_resource.sh
./scripts/stacktrace.sh
./tools/patman/patman
./tools/buildman/buildman

../rkbin/tools/resource_tool
../rkbin/tools/loaderimage
../rkbin/tools/trust_merger
../rkbin/tools/boot_merger

[VERSION]
MAJOR=0                     ----主版本号
MINOR=1                     ----次版本号
[BL30_OPTION]               ----bl30，⽬前设置为mcu bin
SEC=1                       ----存在BL30 bin
PATH=tools/rk_tools/bin/rk33/rk3368bl30_v2.00.bin   ----指定bin路径
ADDR=0xff8c0000             ----固件DDR中的加载和运⾏地址
[BL31_OPTION]               ----bl31，⽬前设置为多核和电源管理相关的bin
SEC=1                       ----存在BL31 bin
PATH=tools/rk_tools/bin/rk33/rk3368bl31-20150401-v0.1.bin----指定bin路径
ADDR=0x00008000             ----固件DDR中的加载和运⾏地址
[BL32_OPTION]
SEC=0                       ----不存在BL32 bin
[BL33_OPTION]
SEC=0                       ----不存在BL33 bin
[OUTPUT]
PATH=trust.img [OUTPUT]     ----输出固件名字

/*
 * @<sha>：可选。sha相关，参考make.sh
 * @<rsa>：可选。rsa相关，参考make.sh
 * @<size>：可选，格式：--size [KB] [count]。输出⽂件⼤⼩，省略时默认单份2M，打包2份
 * @[ini file]: 必选。ini⽂件
 */

./tools/trust_merger <sha> <rsa> <size> [ini file]

./tools/trust_merger --rsa 3 --sha 2 ./ RKTRUST/RK3399TRUST.ini
out:trust.img
merge success(trust.img)

// @[input image]: 必选。⽤于解包的固件，⼀般是trust.img

./tools/trust_merger --unpack [input image]

./tools/trust_merger --unpack trust.img

File Size = 4194304
Header Tag:BL3X
Header version:256
Header flag:35
SrcFileNum:4
SignOffset:992
Component 0:
ComponentID:BL31
StorageAddr:0x4
ImageSize:0x1c0
LoadAddr:0x10000
Component 1:
ComponentID:BL31
StorageAddr:0x1c4
ImageSize:0x10
LoadAddr:0xff8c0000
Component 2:
ComponentID:BL31
StorageAddr:0x1d4
ImageSize:0x48
LoadAddr:0xff8c2000
Component 3:
ComponentID:BL32
StorageAddr:0x21c
ImageSize:0x2e0
LoadAddr:0x8400000
unpack success

[CHIP_NAME]
NAME=RK320A                 ----芯⽚名称：”RK”加上与maskrom约定的4B芯⽚型号
[VERSION]
MAJOR=2                     ----主版本号
MINOR=36                    ----次版本号
[CODE471_OPTION]            ----code471，⽬前设置为ddr bin
NUM=1
Path1=tools/rk_tools/bin/rk32/rk3288_ddr_400MHz_v1.06.bin
[CODE472_OPTION]            ----code472，⽬前设置为usbplug bin
NUM=1
Path1=tools/rk_tools/bin/rk32/rk3288_usbplug_v2.36.bin
[LOADER_OPTION]
NUM=2
LOADER1=FlashData           ----flash data，⽬前设置为ddr bin
LOADER2=FlashBoot           ----flash boot，⽬前设置为miniloader bin
FlashData=tools/rk_tools/bin/rk32/rk3288_ddr_400MHz_v1.06.bin
FlashBoot=tools/rk_tools/bin/rk32/rk3288_miniloader_v2.36.bin
[OUTPUT]                    ----输出⽂件名
PATH=rk3288_loader_v1.06.236.bin

// @[ini file]: 必选。ini⽂件

./tools/boot_merger [ini file]

./tools/boot_merger ./RKBOOT/RK3399MINIALL.ini
out:rk3399_loader_v1.17.115.bin
fix opt:rk3399_loader_v1.17.115.bin
merge success(rk3399_loader_v1.17.115.bin)

// @[input image]: 必选。⽤于解包的固件，⼀般是loader⽂件

./tools/boot_merger --unpack [input image]

./tools/boot_merger --unpack rk3399_loader_v1.17.115.bin
unpack entry(rk3399_ddr_800MHz_v1.17)
unpack entry(rk3399_usbplug_v1.15)
unpack entry(FlashData)
unpack entry(FlashBoot)
unpack success

/*
 * @[input bin]: 必选。bin源⽂件
 * @[output image]：必选。输出⽂件
 * @[load_addr]：必选。加载地址
 * @<size>：可选，格式：--size [KB] [count]。输出⽂件⼤⼩，省略时默认单份1M，打包4份
 */

./tools/loaderimage --pack --uboot [input bin] [output image] [load_addr] <size>

./tools/loaderimage --pack --uboot ./u-boot.bin uboot.img 0x60000000 --size 1024 2

 load addr is 0x60000000!
pack input u-boot.bin
pack file size: 701981
crc = 0xc595eb85
uboot version: U-Boot 2017.09-02593-gb6e59d9 (Feb 18 2019 - 13:58:53)
pack uboot.img success!

/*
 * @[input image]: 必选。解包源⽂件
 * @[output bin]: 必选。解包输出⽂件，任意名字均可
 */

./tools/loaderimage --unpack --uboot [input image] [output bin]

./tools/loaderimage --unpack --uboot uboot.img uboot.bin
unpack input uboot.img
unpack uboot.bin success!

/*
 * @[input bin]: 必选。bin⽂件
 * @[output image]：必选。输出⽂件
 * @[load_addr]：必选。加载地址
 * @<size>：可选。格式：--size [KB] [count]，输出⽂件⼤⼩，省略时默认单份1M，打包4份
 */

./tools/loaderimage --pack --trustos [input bin] [output image] [load_addr] <size>

./tools/loaderimage --pack --trustos ./bin/rk32/rk322x_tee_v2.00.bin trust.img \
                       0x80000000  --size 1024 2

 load addr is 0x80000000!
pack input bin/rk32/rk322x_tee_v2.00.bin
pack file size: 333896
crc = 0x2de93b46
pack trust.img success!

/*
 * @[input image]: 必选。解包源⽂件
 * @[output bin]: 必选。解包输出⽂件，任意名均可
 */

./tools/loaderimage --unpack --trustos [input image] [output bin]

./tools/loaderimage --unpack --trustos trust.img tee.bin
unpack input trust.img
unpack tee.bin success!

./tools/resource_tool [--pack] [--image=<resource.img>] <file list>

./scripts/resource_tool ./arch/arm/boot/dts/rk3126-evb.dtb logo.bmp logo_kernel.bmp
Pack to resource.img successed!

./tools/resource_tool --unpack --image=<resource.img> [output dir]

./tools/resource_tool --unpack --image=resource.img ./out/

Dump header:
partition version:0.0
header size:1
index tbl:
        offset:1        entry size:1    entry num:3
Dump Index table:
entry(0):
        path:rk-kernel.dtb
        offset:4        size:33728
entry(1):
        path:logo.bmp
        offset:70       size:170326
entry(2):
        path:logo_kernel.bmp
        offset:403      size:19160
Unack resource.img to ./out successed!

./tools/mkimage -n rk3328 -T rksd -d tpl/u-boot-tpl.bin idbloader.img

./doc/mkimage.1

./scripts/mkbootimg --kernel zImage --second resource.img --ramdisk ramdisk.img --out
boot.img

./scripts/unpack_bootimg --boot_img boot.img --out out/

// 例如：只替换kernel
./scripts/repack-bootimg --boot_img boot.img --kernel zImage -o boot_repack.img

// 例如：只替换resource
./scripts/repack-bootimg --boot_img boot.img --second resource.img -o boot_repack.img

./scripts/pack_resource.sh resource.img

Pack ./tools/images/ & resource.img to resource.img ...
Unpacking old image(resource.img):
rk-kernel.dtb 1
Pack to resource.img successed!
Packed resources:
rk-kernel.dtb battery_1.bmp battery_2.bmp battery_3.bmp battery_4.bmp battery_5.bmp
battery_fail.bmp battery_0.bmp 8

resource.img is packed ready

./tools/buildman/README

[toolchain]
arm: ~/prebuilts/gcc/linux-x86/arm/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf/
aarch64: ~/prebuilts/gcc/linux-x86/aarch64/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-
gnu/

./tools/buildman/buildman rockchip

$ ./tools/buildman/buildman rockchip
boards.cfg is up to date. Nothing to do.
Building current source for 34 boards (4 threads, 1 job per thread)
   34    0    0 /34     evb-rk3326

./tools/patman/README

$ patman -h
Usage: patman [options]

Create patches from commits in a branch, check them and email them as
specified by tags you place in the commits. Use -n to do a dry run first.

Options:
  -h, --help            show this help message and exit
  -H, --full-help       Display the README file
  -c COUNT, --count=COUNT
                        Automatically create patches from top n commits
  -i, --ignore-errors   Send patches email even if patch errors are found
  -m, --no-maintainers  Don't cc the file maintainers automatically
  -n, --dry-run         Do a dry run (create but don't email patches)
  -p PROJECT, --project=PROJECT
                        Project name; affects default option values and
                        aliases [default: u-boot]
  -r IN_REPLY_TO, --in-reply-to=IN_REPLY_TO
                        Message ID that this series is in reply to
  -s START, --start=START
                        Commit to start creating patches from (0 = HEAD)
  -t, --ignore-bad-tags
                        Ignore bad tags / aliases
  --test                run tests
  -v, --verbose         Verbose output of errors and warnings
  --cc-cmd=CC_CMD       Output cc list for patch file (used by git)
  --no-check            Don't check for patch compliance
  --no-tags             Don't process subject tags as aliaes
  -T, --thread          Create patches as a single thread

patman -t -c3

commit 72aa9e3085e64e785680c3fa50a28651a8961feb
Author: Kever Yang <kever.yang@rock-chips.com>
Date:   Wed Sep 6 09:22:42 2017 +0800

    spl: add support to booting with OP-TEE

    OP-TEE is an open source trusted OS, in armv7, its loading and
    running are like this:
    loading:
    - SPL load both OP-TEE and U-Boot
    running:
    - SPL run into OP-TEE in secure mode;
    - OP-TEE run into U-Boot in non-secure mode;

    More detail:
    <https://github.com/OP-TEE/optee_os>
    and search for 'boot arguments' for detail entry parameter in:
    core/arch/arm/kernel/generic_entry_a32.S

    Cover-letter:
    rockchip: add tpl and OPTEE support for rk3229

    Add some generic options for TPL support for arm 32bit, and then
    and TPL support for rk3229(cortex-A7), and then add OPTEE support
    in SPL.

    Tested on latest u-boot-rockchip master.

    END

    Series-version: 4
    Series-changes: 4
    - use NULL instead of '0'
    - add fdt_addr as arg2 of entry

    Series-changes: 2
    - Using new image type for op-tee

    Change-Id: I3fd2b8305ba8fa9ea687ab7f3fd1ffd2fac9ece6
    Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

[PATCH v4 00/11] rockchip: add tpl and OPTEE support for rk3229

[PATCH v4,07/11] spl: add support to booting with OP-TEE

OP-TEE is an open source trusted OS, in armv7, its loading and
running are like this:
loading:
- SPL load both OP-TEE and U-Boot
running:
- SPL run into OP-TEE in secure mode;
- OP-TEE run into U-Boot in non-secure mode;

More detail:
<https://github.com/OP-TEE/optee_os>
and search for 'boot arguments' for detail entry parameter in:
core/arch/arm/kernel/generic_entry_a32.S

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
---

Changes in v4:
- use NULL instead of '0'
- add fdt_addr as arg2 of entry

Changes in v3: None
Changes in v2:
- Using new image type for op-tee

 common/spl/Kconfig     |  7 +++++++
 common/spl/Makefile    |  1 +
 common/spl/spl.c       |  9 +++++++++
 common/spl/spl_optee.S | 13 +++++++++++++
 include/spl.h          | 13 +++++++++++++
 5 files changed, 43 insertions(+)
 create mode 100644 common/spl/spl_optee.S