大家好！
我使用的是STM32MP135DAE7，官方TF-A、OPTEE源码中使用I2C4挂载PMIC，我更改为I2C5后，程序下载失败，相关配置内容如下。请各位大神帮忙，看看哪有不妥？
1.TF-A中：
dts中与I2C4源码相比，更换了I2C5接口，指定I2C5时钟源CLK_I2C5_HSI
i2c5 {
pinctrl-names = "default";
pinctrl-0 = <&i2c5_pins_a>;
i2c-scl-rising-time-ns = <185>;
i2c-scl-falling-time-ns = <20>;
clock-frequency = <400000>;
status = "okay";
pmic: stpmic@33 {
compatible = "st,stpmic1";
reg = <0x33>;
status = "okay";
regulators {
compatible = "st,stpmic1-regulators";
buck1-supply = <&vin>;
buck2-supply = <&vin>;
buck3-supply = <&vin>;
buck4-supply = <&vin>;
ldo1-supply = <&vin>;
ldo2-supply = <&vin>;//llsdtest
ldo4-supply = <&vin>;
ldo5-supply = <&vin>;
ldo6-supply = <&vin>;
vref_ddr-supply = <&vin>;
pwr_sw1-supply = <&bst_out>;
pwr_sw2-supply = <&v3v3_ao>;
vddcpu: buck1 {
regulator-name = "vddcpu";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-over-current-protection;
};
vdd_ddr: buck2 {
regulator-name = "vdd_ddr";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-over-current-protection;
};
vdd: buck3 {
regulator-name = "vdd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
st,mask-reset;
regulator-over-current-protection;
};
vddcore: buck4 {
regulator-name = "vddcore";
regulator-min-microvolt = <1250000>;
regulator-max-microvolt = <1250000>;
regulator-always-on;
regulator-over-current-protection;
};
vdd_adc: ldo1 {
regulator-name = "vdd_adc";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-always-on;//llsdtest
};
/*llsdtest*/
vdd_v3v3: ldo2 {
regulator-name = "vdd_v3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_usb: ldo4 {
regulator-name = "vdd_usb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd_sd: ldo5 {
regulator-name = "vdd_sd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
//regulator-boot-on;
regulator-always-on;
};
v1v8_periph: ldo6 {
regulator-name = "v1v8_periph";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
};
vref_ddr: vref_ddr {
regulator-name = "vref_ddr";
regulator-always-on;
};
bst_out: boost {
regulator-name = "bst_out";
};
v3v3_sw: pwr_sw2 {
regulator-name = "v3v3_sw";
regulator-active-discharge = <1>;
regulator-always-on;
};
};
};
};
rcc {
//secure-status = "disable";
st,clksrc = <
CLK_MPU_PLL1P
CLK_AXI_PLL2P
CLK_MLAHBS_PLL3
CLK_CKPER_HSE
CLK_RTC_LSE
CLK_SDMMC1_PLL4P
CLK_SDMMC2_PLL4P
CLK_STGEN_HSE
CLK_USBPHY_HSE
//CLK_I2C4_HSI//llsd
CLK_I2C5_HSI//llsd
CLK_USBO_USBPHY
CLK_I2C12_HSI
CLK_UART2_HSI
CLK_UART4_HSI
;
};
2.OPTEE中：
dts中与I2C4比，修改了节点&etzpc，加密的GPIO由I2C4改为I2C5，更换I2C接口，定义I2C5时钟源
&etzpc {
st,decprot = <
DECPROT(STM32MP1_ETZPC_ADC1_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_ADC2_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_BKPSRAM_ID, DECPROT_S_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_DCMIPP_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_DDRCTRLPHY_ID, DECPROT_NS_R_S_W, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_ETH1_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_ETH2_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_FMC_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_HASH_ID, DECPROT_S_RW, DECPROT_UNLOCK)//llsd
DECPROT(STM32MP1_ETZPC_I2C3_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_I2C4_ID, DECPROT_NS_RW, DECPROT_UNLOCK)
DECPROT(STM32MP1_ETZPC_I2C5_ID, DECPROT_S_RW, DECPROT_UNLOCK)//llsd1
......
>;
};
&gpiof {
st,protreg = < (TZPROT(3)) >;
};
&gpiod {
st,protreg = < (TZPROT(7)) >;
};
&gpioh {
st,protreg = < (TZPROT(13)) >;
};
&gpiof {
st,protreg = < (TZPROT(8)) >;
};
&i2c5 {
pinctrl-names = "default";
pinctrl-0 = <&i2c5_pins_a>;
i2c-scl-rising-time-ns = <185>;
i2c-scl-falling-time-ns = <20>;
clock-frequency = <400000>;
status = "okay";
/*llsd2*/
pmic: stpmic@33 {
......
};
};
&rcc {
compatible = "st,stm32mp13-rcc", "syscon";
//pinctrl-0 = <&rcc_mco_pins_a>;
pinctrl-names = "default";
st,clksrc = <
CLK_MPU_PLL1P
CLK_AXI_PLL2P
CLK_MLAHBS_PLL3
CLK_RTC_LSE
CLK_MCO1_HSE
CLK_MCO2_DISABLED
CLK_CKPER_HSE
CLK_ETH1_PLL4P
CLK_ETH2_PLL4P
CLK_SDMMC1_PLL4P
CLK_SDMMC2_PLL4P
CLK_STGEN_HSE
CLK_USBPHY_HSE
//CLK_I2C4_HSI//llsd
CLK_I2C5_HSI//llsd
......
>
......
};
比较怀疑是OPTEE配置问题，参照I2C4配置的，还未看出有什么不妥，麻烦大家了，谢谢
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你已经将I2C5的时钟源设置为
CLK_I2C5_HSI。确保这个时钟源已经被正确配置，并且I2C5的时钟频率符合PMIC的要求。STM32MP系列的I2C时钟频率通常设置为400kHz