Complete technical text from Chinese V1.1.0, covering RK3506 and Linux 6.1. ArmSoM platform reference only: verify the exact board SoC, SDK/BSP, trust/ATF, kernel, PMIC, power tree and wake-up pins. This does not establish support for every ArmSoM board. No English PDF or standalone technical figures are present; all four languages share the Chinese source. Code, configuration and logs are source examples, not hardware-tested ArmSoM results; no suspend or power commands were executed.
Incorrect power-off, clock or wake-source settings may prevent resume or cause data loss. Have an engineer familiar with the hardware verify examples before use. Source code comments, spelling, placeholders and ambiguities are retained without inventing constants.
1. System suspend
Linux suspend flow: the generic Linux-kernel suspend flow suspends peripheral modules and the OS, then enters RK3506 OPTEE to complete SoC suspend. Firmware: OPTEE corresponds to rk3506_tee_vx.yy.bin in rkbin. Considering feature completeness and bug fixes, the source recommends a version no earlier than:
rk3506_tee_v2.10.bin // sdk默认
rk3506_tee_ta_v1.10.bin // 客户有ta需求时使用
OPTEE suspend typically disables IP modules, clocks and PLLs, places DDR in self-refresh, switches the system bus to a low-speed clock (24M or 32K), powers off vdd_arm/vdd_logic and configures wake-up sources. Product-specific configuration is passed to OPTEE through DTS nodes during boot. Suspend options and methods are platform-specific and must not be transferred between platforms; this document applies only to RK3506. For VD_PMU and VD_Logic domains, consult the PMU chapter of the TRM.
1.1 Driver files
./drivers/soc/rockchip/rockchip_pm_config.c
./drivers/firmware/rockchip_sip.c
./include/dt-bindings/suspend/rockchip-rk3506.h
1.2 DTS node
rockchip_suspend: rockchip-suspend {
compatible = "rockchip,pm-rk3506";
status = "okay";
// 常规配置（必要，根据实际需求配置）
rockchip,sleep-mode-config = <
(0
| RKPM_ARMOFF_DDRPD
| RKPM_24M_OSC_DIS
| RKPM_32K_CLK
| RKPM_32K_SRC_RC
)
>;
// 唤醒源配置（必要，根据实际需求配置）
rockchip,wakeup-config = <
(0
| RKPM_GPIO0_WAKEUP_EN
)
>;
// 电源配置（必要，根据实际硬件设计进行配置）
rockchip,apios-suspend = <
(0
| RKPM_PWREN_CORE_GPIO0A2 | RKPM_PWREN_CORE_ACT_LOW
| RKPM_PWREN_SLEEP_GPIO0A0 | RKPM_PWREN_SLEEP_ACT_LOW
)
>;
// GPIO配置（可选，根据实际需求配置。用于配置外设io状态以便降低待机功耗）
#define GPIO0_IOC_GPIO0A_PULL_REG 0xff950200
#define GPIO0_IOC_GPIO0C_PULL_REG 0xff950208
#define GPIO0A3_PULL_DOWN 0x00c00080
#define GPIO0C5_PULL_DOWN 0x0c000800
rockchip,sleep-io-config = <
GPIO0_IOC_GPIO0C_PULL_REG GPIO0C5_PULL_DOWN /* PWM0_CH0_CPU */
GPIO0_IOC_GPIO0A_PULL_REG GPIO0A3_PULL_DOWN /* PWM0_CH2_LCD_BL */
>;
// 调试配置（可选，根据实际需求配置。用于调试分析）
rockchip,sleep-debug-en = <
(0
| RKPM_DBG_TIMEOUT_S(3)
)
>;
};
The Rockchip SDK generally supplies a generic, relatively complete reference configuration. Add or remove options according to the actual product requirements.
2. DTS configuration
Currently supported configuration options are defined in:
./include/dt-bindings/suspend/rockchip-rk3506.h
2.1 General configuration
Configuration property:
rockchip,sleep-mode-config = <...>;
Configuration definitions:
// ARM不断电。产品上一般不使用，仅用于排查问题。
#define RKPM_ARMPD BIT(0)
// ARM断电 + ddr不进入低功耗。产品上一般不使用，仅用于排查问题。
#define RKPM_ARMOFF BIT(1)
// ARM断电 + ddr进入低功耗。
#define RKPM_ARMOFF_DDRPD BIT(2)
// ARM断电 + Logic断电 + ddr进入低功耗。
#define RKPM_ARMOFF_LOGOFF BIT(3)
// 关闭24M晶振（只有切到32k时钟的情况下才允许配上）。
#define RKPM_24M_OSC_DIS BIT(4)
// 系统时钟切到32K。
#define RKPM_32K_CLK BIT(5)
// 32K系统时钟的来源（要求必须配置RKPM_32K_CLK）。分别是：
// - 外部32k晶振（需要板子支持）
// - SoC内置RC400时钟分频到32k
// - 24M晶振分频(此时不能配置RKPM_24M_OSC_DIS)
// 如果在意待机耗时的准确性，选择建议：外部32k晶振 > 24M晶振分频(此时待机不能关晶振，功耗会比选择RC时钟更大) > SoC内置RC时钟。
// 如果不在意待机耗时的准确性，选择建议：SoC内置RC时钟。
#define RKPM_32K_SRC_OSC BIT(6)
#define RKPM_32K_SRC_RC BIT(7)
#define RKPM_32K_SRC_24XIN BIT(8)
// 使用分立电源方案且VDD_ARM使用PWM0_CH0控制PWM调压，需要配上。
#define RKPM_PWM0_CH0_REGULATOR BIT(9)
// 不关PWM0时钟，对应cru gate1[1]。如果待机时需要pwm0上的呼吸灯继续工作，需要配上。
#define RKPM_PWM0_SRC_24M_EN BIT(10)
// 不关PWM0时钟，对应cru gate1[0]。产品上一般不配，仅特殊需求或排查问题时使用。
#define RKPM_PWM0_SRC_PLL_EN BIT(11)
// 不关VD_Logic域的总时钟。产品上一般不配，仅特殊需求或排查问题时使用。
#define RKPM_LOG_CLK_ALIVE BIT(12)
// 不关PLL。产品上一般不配，仅特殊需求或排查问题时使用。
#define RKPM_GPLL_ALIVE BIT(13)
#define RKPM_V0PLL_ALIVE BIT(14)
#define RKPM_V1PLL_ALIVE BIT(15)
// 关闭GPIO4的输入使能。可能有一点待机功耗收益，但是无法支持GPIO4作为唤醒源。
// 客户自行验证后确认是否要用。
#define RKPM_GPIO4_IE_DIS BIT(16)
// VD_PMU域的模块不切到低速时钟。一般是待机情况下还需要VD_PMU域的模块正常工作时需要配上。
// 例如：系统待机时MCU也还继续工作，它要控制GPIO0上的pin脚状态。
#define RKPM_PMU_BUS_CLK_HS BIT(17)
// 仅在RK801电源方案上才配置。
#define RKPM_PWM0_CH0_CORE_PWREN BIT(18)
RK3506 currently supports two suspend modes: ARM power-off and ARM+LOGIC power-off.
2.2 Power configuration
Configuration property:
rockchip,apios-suspend = <...>;
Configuration definitions:
// PWRCTRL_SLEEP脚关电源时的极性
#define RKPM_PWREN_SLEEP_ACT_LOW PIN0(PWREN_ACT_LOW_MASK)
#define RKPM_PWREN_SLEEP_ACT_HIGH PIN0(PWREN_ACT_HIGH_MASK)
// PWRCTRL_SLEEP脚定义
#define RKPM_PWREN_SLEEP_GPIO0A0 PIN0(0)
#define RKPM_PWREN_SLEEP_GPIO0A1 PIN0(1)
#define RKPM_PWREN_SLEEP_GPIO0A2 PIN0(2)
#define RKPM_PWREN_SLEEP_GPIO0A3 PIN0(3)
#define RKPM_PWREN_SLEEP_GPIO0A4 PIN0(4)
#define RKPM_PWREN_SLEEP_GPIO0A5 PIN0(5)
#define RKPM_PWREN_SLEEP_GPIO0A6 PIN0(6)
#define RKPM_PWREN_SLEEP_GPIO0A7 PIN0(7)
#define RKPM_PWREN_SLEEP_GPIO0B0 PIN0(8)
#define RKPM_PWREN_SLEEP_GPIO0B1 PIN0(9)
#define RKPM_PWREN_SLEEP_GPIO0B2 PIN0(10)
#define RKPM_PWREN_SLEEP_GPIO0B3 PIN0(11)
#define RKPM_PWREN_SLEEP_GPIO0B4 PIN0(12)
#define RKPM_PWREN_SLEEP_GPIO0B5 PIN0(13)
#define RKPM_PWREN_SLEEP_GPIO0B6 PIN0(14)
#define RKPM_PWREN_SLEEP_GPIO0B7 PIN0(15)
#define RKPM_PWREN_SLEEP_GPIO0C0 PIN0(16)
#define RKPM_PWREN_SLEEP_GPIO0C1 PIN0(17)
#define RKPM_PWREN_SLEEP_GPIO0C2 PIN0(18)
#define RKPM_PWREN_SLEEP_GPIO0C3 PIN0(19)
#define RKPM_PWREN_SLEEP_GPIO0C4 PIN0(20)
#define RKPM_PWREN_SLEEP_GPIO0C5 PIN0(21)
#define RKPM_PWREN_SLEEP_GPIO0C6 PIN0(22)
#define RKPM_PWREN_SLEEP_GPIO0C7 PIN0(23)
#define RKPM_PWREN_SLEEP_GPIO1B1 PIN0(24)
#define RKPM_PWREN_SLEEP_GPIO1B2 PIN0(25)
#define RKPM_PWREN_SLEEP_GPIO1B3 PIN0(26)
#define RKPM_PWREN_SLEEP_GPIO1C2 PIN0(27)
#define RKPM_PWREN_SLEEP_GPIO1C3 PIN0(28)
#define RKPM_PWREN_SLEEP_GPIO1D1 PIN0(29)
#define RKPM_PWREN_SLEEP_GPIO1D2 PIN0(30)
#define RKPM_PWREN_SLEEP_GPIO1D3 PIN0(31)
// PWRCTRL_CORE脚关电源时的极性
#define RKPM_PWREN_CORE_ACT_LOW PIN8(PWREN_ACT_LOW_MASK)
#define RKPM_PWREN_CORE_ACT_HIGH PIN8(PWREN_ACT_HIGH_MASK)
// PWRCTRL_CORE脚定义
#define RKPM_PWREN_CORE_GPIO0A0 PIN8(0)
#define RKPM_PWREN_CORE_GPIO0A1 PIN8(1)
#define RKPM_PWREN_CORE_GPIO0A2 PIN8(2)
#define RKPM_PWREN_CORE_GPIO0A3 PIN8(3)
#define RKPM_PWREN_CORE_GPIO0A4 PIN8(4)
#define RKPM_PWREN_CORE_GPIO0A5 PIN8(5)
#define RKPM_PWREN_CORE_GPIO0A6 PIN8(6)
#define RKPM_PWREN_CORE_GPIO0A7 PIN8(7)
#define RKPM_PWREN_CORE_GPIO0B0 PIN8(8)
#define RKPM_PWREN_CORE_GPIO0B1 PIN8(9)
#define RKPM_PWREN_CORE_GPIO0B2 PIN8(10)
#define RKPM_PWREN_CORE_GPIO0B3 PIN8(11)
#define RKPM_PWREN_CORE_GPIO0B4 PIN8(12)
#define RKPM_PWREN_CORE_GPIO0B5 PIN8(13)
#define RKPM_PWREN_CORE_GPIO0B6 PIN8(14)
#define RKPM_PWREN_CORE_GPIO0B7 PIN8(15)
#define RKPM_PWREN_CORE_GPIO0C0 PIN8(16)
#define RKPM_PWREN_CORE_GPIO0C1 PIN8(17)
#define RKPM_PWREN_CORE_GPIO0C2 PIN8(18)
#define RKPM_PWREN_CORE_GPIO0C3 PIN8(19)
#define RKPM_PWREN_CORE_GPIO0C4 PIN8(20)
#define RKPM_PWREN_CORE_GPIO0C5 PIN8(21)
#define RKPM_PWREN_CORE_GPIO0C6 PIN8(22)
#define RKPM_PWREN_CORE_GPIO0C7 PIN8(23)
#define RKPM_PWREN_CORE_GPIO1B1 PIN8(24)
#define RKPM_PWREN_CORE_GPIO1B2 PIN8(25)
#define RKPM_PWREN_CORE_GPIO1B3 PIN8(26)
#define RKPM_PWREN_CORE_GPIO1C2 PIN8(27)
#define RKPM_PWREN_CORE_GPIO1C3 PIN8(28)
#define RKPM_PWREN_CORE_GPIO1D1 PIN8(29)
#define RKPM_PWREN_CORE_GPIO1D2 PIN8(30)
#define RKPM_PWREN_CORE_GPIO1D3 PIN8(31)
RK3506 hardware supports one or two pwrctrl pins to control the suspend state of vdd_core, vdd_logic and other supplies. Configure them according to the actual hardware design and suspend requirements. Example from arch/arm/boot/dts/rk3502-evb1-v10.dtsi:
rockchip,sleep-mode-config = <
(0
| RKPM_ARMOFF_DDRPD
| RKPM_24M_OSC_DIS
| RKPM_32K_CLK
| RKPM_32K_SRC_RC
| RKPM_PWM0_CH0_REGULATOR
)
>;
// - pwrctrl_core(gpio0_a2), 拉低时关vdd_core。
// - pwrctrl_sleep(gpio0_a0), 拉低时关vdd_logic和其它电源。
// - 注意：虽然这里两个pwrctrl脚都配置了，但RKPM_ARMOFF_DDRPD待机模式下只拉pwrctrl_core，只有RKPM_ARMOFF_LOGOFF模式下才会拉两个pwrctrl脚。
rockchip,apios-suspend = <
(0
| RKPM_PWREN_CORE_GPIO0A2 | RKPM_PWREN_CORE_ACT_LOW
| RKPM_PWREN_SLEEP_GPIO0A0 | RKPM_PWREN_SLEEP_ACT_LOW
)
>;
2.3 Wake-up source configuration
Configuration property:
rockchip,wakeup-config = <...>;
Configuration definitions:
// 暂不支持。有需求请提Redmine。
#define RKPM_ARM_WAKEUP_EN BIT(0)
#define RKPM_M0_WAKEUP_EN BIT(1)
#define RKPM_HPTIMER_WAKEUP_EN BIT(2)
// 已支持。
#define RKPM_GPIO0_WAKEUP_EN BIT(3)
#define RKPM_GPIO1_SHADOW_WAKEUP_EN BIT(4)
#define RKPM_GPIO2_WAKEUP_EN BIT(5)
#define RKPM_GPIO3_WAKEUP_EN BIT(6)
#define RKPM_GPIO4_WAKEUP_EN BIT(7)
// 暂不支持。有需求请提Redmine。
#define RKPM_PWM0_WAKEUP_EN BIT(8)
#define RKPM_PWM1_WAKEUP_EN BIT(9)
#define RKPM_PWM2_WAKEUP_EN BIT(10)
// 已支持。UART作为唤醒源的配置注意点：
// - 待机模式选择：vdd_logic不断电、时钟不要切到32k。
// - 内核uart节点：增加"wakeup-source;"属性。
// - uart时钟源应该是24M晶振、保证待机前uart时钟没有关闭。
#define RKPM_UART0_WAKEUP_EN BIT(11)
#define RKPM_UART1_WAKEUP_EN BIT(12)
#define RKPM_UART2_WAKEUP_EN BIT(13)
#define RKPM_UART3_WAKEUP_EN BIT(14)
#define RKPM_UART4_WAKEUP_EN BIT(15)
#define RKPM_UART5_WAKEUP_EN BIT(16)
// 已支持。（待机时系统时钟可以切到32K模式）
#define RKPM_USB0_DET_WAKEUP_EN BIT(17)
#define RKPM_USB1_DET_WAKEUP_EN BIT(18)
// 暂不支持。有需求请提Redmine。
#define RKPM_MAC0_WAKEUP_EN BIT(19)
#define RKPM_MAC1_WAKEUP_EN BIT(20)
#define RKPM_TIMER0_WAKEUP_EN BIT(21)
#define RKPM_TIMER1_WAKEUP_EN BIT(22)
#define RKPM_CAN0_WAKEUP_EN BIT(23)
#define RKPM_CAN1_WAKEUP_EN BIT(24)
#define RKPM_TOUCH_KEY_WAKEUP_EN BIT(25)
#define RKPM_SARADC_WAKUP_EN BIT(26)
#define RKPM_ALARM_WAKEUP_EN BIT(27)
#define RKPM_SECOND_CATCH_WAKEUP_EN BIT(28)
// 已支持。
#define RKPM_PMU_TIMEOUT_EN BIT(29)
Wake-up note: with ARM+LOGIC powered off, only module interrupts in VD_PMU are supported as wake sources, primarily GPIO0 and GPIO1_Shadow. For USB wake-up, ensure that the kernel repository includes the following patch:
commit 8e6926b1d4ae8ace396f5bd59e3e7801ca2ee98f
Author: Jianwei Zheng <jianwei.zheng@rock-chips.com>
Date: Fri Nov 15 16:37:45 2024 +0800
phy: rockchip: inno-usb2: support usb wakeup for rk3506
1. Support linestate filter time control register for OTG0 and OTG1.
2. Disable disconnect rise and disconnect fall irq. Because these
two interrupts will be triggered immediately after the system goes
into sleep mode, causing the system to be unable to sleep.
Change-Id: Ia6c1e58ef926f86dee6df0013aafe9bfe4586b52
Signed-off-by: Jianwei Zheng <jianwei.zheng@rock-chips.com>
2.4 GPIO configuration
Configuration property:
rockchip,sleep-io-config = <...>;
This property optimizes standby power. Products have demanding standby-power requirements, and unsuitable GPIO states (input, output, pull-up or pull-down) can increase consumption. If the corresponding driver cannot conveniently set a GPIO’s suspend state, configure it here. The settings take effect at the last stage of suspend; on resume, registers return to their pre-suspend state. Configure as required by the hardware design.
Configuration uses up to 16 pairs of “register address configuration value”. Only GPIO-controller GPIO_SWPORT_DR and GPIO_SWPORT_DDR registers and all IOC-controller registers are configurable. An invalid pair produces “(invalid)” in the suspend log and is ignored. More than 16 pairs produces “(overflow)” and the configuration is ignored.
2.5 Debug configuration
Configuration property:
rockchip,sleep-debug-en = <...>;
Do not use in production; for troubleshooting only. Configuration definitions:
// 待机时使能所有的时钟。
#define RKPM_DBG_CLK_UNGATE BIT(0)
// 待机时保持所有PLL都常开。
#define RKPM_DBG_PLLS_ALIVE BIT(1)
// 忽略。
#define RKPM_DBG_PMU_SOUT BIT(2)
// 执行SoC待机流程之前打印寄存器值。
#define RKPM_DBG_REG1 BIT(3)
// 执行SoC待机流程之后打印寄存器值。
#define RKPM_DBG_REG2 BIT(4)
// 忽略。
#define RKPM_DBG_DEEP_JTAG BIT(5)
#define RKPM_DBG_JTAG BIT(6)
// PMU内部的timer超时后自动唤醒(单位:秒)，一般仅用于开发阶段测试休眠唤醒使用。
#define RKPM_DBG_TIMEOUT_S(i) (((i) & 0xf) << 7)
// 执行SoC待机流程之前就让CPU进入低功耗。
// 用于测试中断无法唤醒系统的情况，目的是确认中断失效是否是因为SoC待机流程配置引起。
#define RKPM_DBG_DUMMY_WFI BIT(11)
// 在SoC待机流程的起始和结束位置插入两个5s的delay。用于确认某些异常是否因SoC待机流程引起。
#define RKPM_DBG_DUMMY_DELAY1 BIT(12)
#define RKPM_DBG_DUMMY_DELAY2 BIT(13)
// 类同 RKPM_DBG_REG1/2，打印出更多外设模块的寄存器值。
#define RKPM_DBG_PERI_REG BIT(14)
RKPM_DBG_REG1 prints register states after the kernel has completed all SUSPEND processing.
RKPM_DBG_REG2 prints register states before OPTEE performs the final sleep step. Use this option when analyzing IO power consumption during suspend.
2.6 LOGIC power-off configuration
To cover the standby scenarios of most products, the released SDK defaults to ARM power-off. The following reference-board configurations instead use ARM+LOGIC power-off. RK3506G-EVB1 board:
diff --git a/arch/arm/boot/dts/rk3502-evb1-v10.dtsi b/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
index 852840cc78c..69124f89661 100644
--- a/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
+++ b/arch/arm/boot/dts/rk3502-evb1-v10.dtsi
@@ -396,7 +396,7 @@
&rockchip_suspend {
rockchip,sleep-mode-config = <
(0
- | RKPM_ARMOFF_DDRPD
+ | RKPM_ARMOFF_LOGOFF
| RKPM_24M_OSC_DIS
| RKPM_32K_CLK
| RKPM_32K_SRC_RC
RK3506G-DEMO (RK801) board:
diff --git a/arch/arm/boot/dts/rk3506-rk801.dtsi b/arch/arm/boot/dts/rk3506-rk801.dtsi
index a0c0778a214..5028e00031b 100644
--- a/arch/arm/boot/dts/rk3506-rk801.dtsi
+++ b/arch/arm/boot/dts/rk3506-rk801.dtsi
@@ -104,7 +104,7 @@
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
- regulator-on-in-suspend;
+ regulator-off-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
};
@@ -114,7 +114,7 @@
regulator-boot-on;
regulator-always-on;
regulator-state-mem {
- regulator-on-in-suspend;
+ regulator-off-in-suspend;
};
};
};
diff --git a/arch/arm/boot/dts/rk3506g-demo-display-control.dts b/arch/arm/boot/dts/rk3506g-demo-display-control.dts
index 59f8ade8a32..f982c38bd89 100644
--- a/arch/arm/boot/dts/rk3506g-demo-display-control.dts
+++ b/arch/arm/boot/dts/rk3506g-demo-display-control.dts
@@ -580,7 +580,7 @@
&rockchip_suspend {
rockchip,sleep-mode-config = <
(0
- | RKPM_ARMOFF_DDRPD
+ | RKPM_ARMOFF_LOGOFF
| RKPM_24M_OSC_DIS
| RKPM_32K_CLK
| RKPM_32K_SRC_RC
3. Log messages
The following explains suspend and resume log messages. Some output is split into lines for annotation; different power modes produce different messages. The actual output is authoritative. RK3506 suspend log:
// 版本信息。其中："fwver: v1.10"是固件版本号；"-gxxxxx"是固件编译点的commit号。
3.13.0-885-gf24e46b4e16 #chenjh (gcc version 10.2.1 20201103 (GNU Toolchain for
the A-profile Architecture 10.2-2020.11 (arm-10.16))) #4 Fri Oct 18 17:07:30 CST
2024 arm, fwver: v1.10
// 配置信息。这些值对应了内核dts中rockchip_suspend节点的配置值，其中"cnt"表示当前第几次进入待机。
gcfg: cnt=2 global=0x000002b8, pwren=0x0000c2c0, wakeup=0x20000008,
dbg=0x00000180, idle: 0, 0, 0
// rc时钟信息，可以不关心。
rc400: hz=362900, div=6170/65319
// 待机配置的展开信息。对应内核dts中rockchip_suspend节点的配置内容，此处展开为字符串方便阅读。
suspend-mode: armoff_logoff, 24m_osc_dis, 32k_clk, 32k_src_rc, pwm0_ch0_regulator
debug-mode: timeout_3s
pwren-core: gpio0_a2 (act:low)
pwren-sleep: gpio0_a0 (act:low)
wakeup-en: gpio0_int, pmu_timeout_int
// 'sleep-io-config'的配置：
// - 如果键值对非法，则有类似显示："ff950210 0c000800(invalid)"。
// - 如果键值对超出16组，则有类似显示："ff950210 0c000800(overflow)"。
sleep-io:
ff950208 0c000800
ff950200 00c00080
// 0123... 表示待机过程中的软件步骤。打印完"wfi"表示整个SoC完全进入低功耗待机，等待外部中断唤醒系统。
0123g4567|wfi
RK3506 resume log (ARM power-off only):
// |654... 表示唤醒后软件步骤。注意：如果是Logic断电唤醒，则在这段信息之前还会有一段DDR bin的打印。
|6543g210
// 唤醒源和中断号。
wakeup-pmu: gpio0_int
wakeup-gpio: gpio0_c1
wakeup-irq: 32
// 系统待机累计时长（本轮待机时长）
Wfi-total: 3.441s (this: 1.420s)
RK3506 resume log (ARM+LOGIC power-off):
// 唤醒后先是一段ddr打印
DDR c7d3dcd3f0 typ 24/10/11-16:20:18,fwver: v1.02
tREFI:4x, sr_idle:93, pd_idle:13
ES
get rd_skew=0x2a, wr_skew=0x2a
PHY drv:clk:60,ca:160,DQ:80,odt:480
vrefinner:50%, vrefout:50%
dram drv:40,odt:0
sr_dq:0, sr_ca:0, sr_clk:0
rg:0x19-0x0-0x2, 0xd-0x0-0x2,status:a007
DDR3, 750MHz
BW=16 Col=10 Bk=8 CS0 Row=13 CS=1 Size=128MB
jump 0x68f4
// 唤醒流程代码的打印
|6543g210
wakeup-pmu: pmu_timeout_int
Wfi-total: 1394.184s (this: 4.979s)