技术专栏
RK3568开发板安卓系统之驱动调试（四）
4 驱动调试
4.1 电源配置
RK GPIO编号说明
A组: A0-A7对应0-7B组: B0-B7对应8-15C组: C0-C7对应16-23D组: D0-D7对应24-31
GPIO编号计算方法:
例如：GPIO4_C4 = 4*32+16+4 = 148
4.1.1 查看原理图
4.1.2 获取需要的配置信息，并在dts里配置
通过查看原理图，获取到相应的信息，然后在dts里配置
1、RK809和TCS4525是挂在I2C0下。输出电压VDD_CPU为0.9V, dts配置如下
vdd_cpu: tcs4525@1c {
compatible = "tcs,tcs452x";
reg = <0x1c>;
vin-supply = <&vcc5v0_sys>;
regulator-compatible = "fan53555-reg";
regulator-name = "vdd_cpu";
...
regulator-init-microvolt = <900000>;
...
};
2、RK809各输入电压的输入源
| 输入电压 | 输入源 |
|---|---|
| VCC1 | VCC5V0_SYS |
| VCC2 | VCC5V0_SYS |
| VCC3 | VCC5V0_SYS |
| VCC4 | VCC5V0_SYS |
| VCC5 | VCC3V3_SYS |
| VCC6 | VCC3V3_SYS |
| VCC7 | VCC3V3_SYS |
| VCC8 | VCC3V3_SYS |
| VCC9 | VCC3V3_SYS |
dts配置如下：
vcc1-supply = <&vcc5v0_SYS>;
vcc2-supply = <&vcc5v0_SYS>;
vcc3-supply = <&vcc5v0_SYS>;
vcc4-supply = <&vcc5v0_SYS>;
vcc5-supply = <&vcc3v3_sys>;
vcc6-supply = <&vcc3v3_sys>;
vcc7-supply = <&vcc3v3_sys>;
vcc8-supply = <&vcc3v3_sys>;
vcc9-supply = <&vcc3v3_sys>;
通过查看原理图，VCC5V0_SYS是底板给的，VCC3V3_SYS是由VCC5V0_SYS转的
3、RK809输出电压名及其电压值
| 电源名称 | 电压值 | |
|---|---|---|
| BUCK1 | VDD_LOGIC | 0.9V |
| BUCK2 | VDD_GPU | 0.9V |
| BUCK3 | VCC_DDR | 硬件调节 |
| BUCK4 | VDD_NPU | 0.9V |
| LDO1 | VDDA0V9_IMAGE | 0.9V |
| LDO2 | VDDA_0V9 | 0.9V |
| LDO3 | VDDA0V9_PMU | 0.9V |
| LDO4 | VCCIO_ACODEC | 3.3V |
| LDO5 | VCCIO_SD | 1.8-3.3V |
| LDO6 | VCC3V3_PMU | 3.3V |
| LDO7 | VCCA_1V8 | 1.8V |
| LDO8 | VCCA1V8_PMU | 1.8V |
| LDO9 | VCCA1V8_IMAGE | 1.8V |
| SWCUT1 | VCC_3V3 | 3.3V |
| SWCUT2 | VCC3V3_SD | 3.3V |
| BUCK5 | VCC_1V8 | 1.8V |
dts里配置
regulators {
vdd_logic: DCDC_REG1 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1350000>;
regulator-init-microvolt = <900000>;
regulator-ramp-delay = <6001>;
regulator-initial-mode = <0x2>;
regulator-name = "vdd_logic";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdd_gpu: DCDC_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1350000>;
regulator-init-microvolt = <900000>;
regulator-ramp-delay = <6001>;
regulator-initial-mode = <0x2>;
regulator-name = "vdd_gpu";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc_ddr: DCDC_REG3 {
regulator-always-on;
regulator-boot-on;
regulator-initial-mode = <0x2>;
regulator-name = "vcc_ddr";
regulator-state-mem {
regulator-on-in-suspend;
};
};
vdd_npu: DCDC_REG4 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1350000>;
regulator-init-microvolt = <900000>;
regulator-ramp-delay = <6001>;
regulator-initial-mode = <0x2>;
regulator-name = "vdd_npu";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdda0v9_image: LDO_REG1 {
regulator-boot-on;
regulator-always-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
regulator-name = "vdda0v9_image";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdda_0v9: LDO_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
regulator-name = "vdda_0v9";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdda0v9_pmu: LDO_REG3 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
regulator-name = "vdda0v9_pmu";
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <900000>;
};
};
vccio_acodec: LDO_REG4 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_acodec";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vccio_sd: LDO_REG5 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_sd";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc3v3_pmu: LDO_REG6 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc3v3_pmu";
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
};
vcca_1v8: LDO_REG7 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcca_1v8";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcca1v8_pmu: LDO_REG8 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcca1v8_pmu";
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
};
vcca1v8_image: LDO_REG9 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcca1v8_image";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc_1v8: DCDC_REG5 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcc_1v8";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc_3v3: SWITCH_REG1 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc_3v3";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc3v3_sd: SWITCH_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc3v3_sd";
regulator-state-mem {
regulator-off-in-suspend;
};
};
};
在原有配置的基础上增加、删除、修改4 驱动调试
在原有配置的基础上增加、删除、修改4.1 电源配置
RK GPIO编号说明
A组: A0-A7对应0-7
B组: B0-B7对应8-15
C组: C0-C7对应16-23
D组: D0-D7对应24-31
GPIO编号计算方法:
例如：GPIO4_C4 = 4*32+16+4 = 148
4.1.1 查看原理图
4.1.2 获取需要的配置信息，并在dts里配置
通过查看原理图，获取到相应的信息，然后在dts里配置
1、RK809和TCS4525是挂在I2C0下。输出电压VDD_CPU为0.9V, dts配置如下
vdd_cpu: tcs4525@1c {
compatible = "tcs,tcs452x";
reg = <0x1c>;
vin-supply = <&vcc5v0_sys>;
regulator-compatible = "fan53555-reg";
regulator-name = "vdd_cpu";
...
regulator-init-microvolt = <900000>;
...
};
2、RK809各输入电压的输入源
| 输入电压 | 输入源 |
| ————- | —————- |
| VCC1 | VCC5V0_SYS |
| VCC2 | VCC5V0_SYS |
| VCC3 | VCC5V0_SYS |
| VCC4 | VCC5V0_SYS |
| VCC5 | VCC3V3_SYS |
| VCC6 | VCC3V3_SYS |
| VCC7 | VCC3V3_SYS |
| VCC8 | VCC3V3_SYS |
| VCC9 | VCC3V3_SYS |
dts配置如下：
vcc1-supply = <&vcc5v0_SYS>;
vcc2-supply = <&vcc5v0_SYS>;
vcc3-supply = <&vcc5v0_SYS>;
vcc4-supply = <&vcc5v0_SYS>;
vcc5-supply = <&vcc3v3_sys>;
vcc6-supply = <&vcc3v3_sys>;
vcc7-supply = <&vcc3v3_sys>;
vcc8-supply = <&vcc3v3_sys>;
vcc9-supply = <&vcc3v3_sys>;
通过查看原理图，VCC5V0_SYS是底板给的，VCC3V3_SYS是由VCC5V0_SYS转的
3、RK809输出电压名及其电压值
| | 电压名称 | 电压值 |
| ———-| —————— | —————|
| BUCK1 | VDD_LOGIC | 0.9V |
| BUCK2 | VDD_GPU | 0.9V |
| BUCK3 | VCC_DDR | 硬件调节 |
| BUCK4 | VDD_NPU | 0.9V |
| LDO1 | VDDA0V9_IMAGE| 0.9V |
| LDO2 | VDDA_0V9 | 0.9V |
| LDO3 | VDDA0V9_PMU | 0.9V |
| LDO4 | VCCIO_ACODEC | 3.3V |
| LDO5 | VCCIO_SD | 1.8-3.3V |
| LDO6 | VCC3V3_PMU | 3.3V |
| LDO7 | VCCA_1V8 | 1.8V |
| LDO8 | VCCA1V8_PMU | 1.8V |
| LDO9 | VCCA1V8_IMAGE| 1.8V |
| SWCUT1 | VCC_3V3 | 3.3V |
| SWCUT2 | VCC3V3_SD | 3.3V |
| BUCK5 | VCC_1V8 | 1.8V |
dts里配置
regulators {
vdd_logic: DCDC_REG1 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1350000>;
regulator-init-microvolt = <900000>;
regulator-ramp-delay = <6001>;
regulator-initial-mode = <0x2>;
regulator-name = "vdd_logic";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdd_gpu: DCDC_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1350000>;
regulator-init-microvolt = <900000>;
regulator-ramp-delay = <6001>;
regulator-initial-mode = <0x2>;
regulator-name = "vdd_gpu";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc_ddr: DCDC_REG3 {
regulator-always-on;
regulator-boot-on;
regulator-initial-mode = <0x2>;
regulator-name = "vcc_ddr";
regulator-state-mem {
regulator-on-in-suspend;
};
};
vdd_npu: DCDC_REG4 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1350000>;
regulator-init-microvolt = <900000>;
regulator-ramp-delay = <6001>;
regulator-initial-mode = <0x2>;
regulator-name = "vdd_npu";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdda0v9_image: LDO_REG1 {
regulator-boot-on;
regulator-always-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
regulator-name = "vdda0v9_image";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdda_0v9: LDO_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
regulator-name = "vdda_0v9";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vdda0v9_pmu: LDO_REG3 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
regulator-name = "vdda0v9_pmu";
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <900000>;
};
};
vccio_acodec: LDO_REG4 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_acodec";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vccio_sd: LDO_REG5 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_sd";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc3v3_pmu: LDO_REG6 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc3v3_pmu";
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
};
vcca_1v8: LDO_REG7 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcca_1v8";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcca1v8_pmu: LDO_REG8 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcca1v8_pmu";
regulator-state-mem {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
};
vcca1v8_image: LDO_REG9 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcca1v8_image";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc_1v8: DCDC_REG5 {
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcc_1v8";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc_3v3: SWITCH_REG1 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc_3v3";
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc3v3_sd: SWITCH_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc3v3_sd";
regulator-state-mem {
regulator-off-in-suspend;
};
};
};
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