米尔STM32MP25x开发板Bring Up培训课程(二)

    st,pwrctrl-sel = <3>;

    st,pwrctrl-reset;

   };

   vref_ddr: refddr {

    regulator-name = 'vref_ddr';

    regulator-always-on;

    st,pwrctrl-sel = <1>;

    st,pwrctrl-enable;

    default {

     regulator-on-in-suspend;

    };

    lplv {

     regulator-on-in-suspend;

    };

    standby {

     regulator-on-in-suspend;

    };

    off {

     regulator-off-in-suspend;

    };

   };

  };

 };

};

 /* USER CODE END i2c7 */

};

增加CPU电源配置

/* USER CODE BEGIN addons */

&pwr {

 pinctrl-names = 'default';

 pinctrl-0 = <&wakeup_pins>;

 status = 'okay';

 vdd33ucpd: vdd33ucpd {

  status = 'okay';

  regulator-min-microvolt = <3300000>;

  regulator-max-microvolt = <3300000>;

  vdd33ucpd-supply = <&vdd3v3_usb>;

  regulator-always-on;

 };

 vdda18adc: vdda18adc {

  status = 'okay';

  regulator-min-microvolt = <1800000>;

  regulator-max-microvolt = <1800000>;

  vdda18adc-supply = <&v1v8>;

  regulator-always-on;

 };

 vddgpu: vddgpu {

  status = 'okay';

  vddgpu-supply = <&vddgpu_pmic>;

 };

 vddio1: vddio1 {

  status = 'okay';

  regulator-min-microvolt = <3300000>;

  regulator-max-microvolt = <3300000>;

  vddio1-supply = <&vddio_sdcard>;

 };

 vddio2: vddio2 {

  status = 'okay';

  vddio2-supply = <&v1v8>;

  regulator-always-on;

 };

 vddio3: vddio3 {

  status = 'okay';

  vddio3-supply = <&vddio_pmic>;

  regulator-always-on;

 };

 vddio4: vddio4 {

  status = 'okay';

  vddio4-supply = <&vddio_pmic>;

  regulator-always-on;

 };

 vddio: vddio {

  status = 'okay';

  vdd-supply = <&vddio_pmic>;

 };

};

&cpu0 {

        cpu-supply = <&vddcpu>;

};

&scmi_regu {

 scmi_vddcore: voltd-vddcore {

  reg = BUCK2>;

  voltd-supply = <&vddcore>;

 };

 scmi_v1v8: voltd-v1v8 {

  reg = ;

  voltd-supply = <&v1v8>;

 };

 scmi_v3v3: voltd-v3v3 {

  reg = ;

  voltd-supply = <&v3v3>;

 };

 scmi_vdd_emmc: voltd-vdd-emmc {

  reg = ;

  voltd-supply = <&vdd_emmc>;

 };

 scmi_vdd3v3_usb: voltd-vdd3v3-usb {

  reg = ;

  voltd-supply = <&vdd3v3_usb>;

 };

 scmi_vdd_sdcard: voltd-vdd_sdcard {

  reg = ;

  voltd-supply = <&vdd_sdcard>;

 };

};

/* USER CODE END addons */

/* USER CODE BEGIN addons */

&risaf2 {

 status = 'disabled';

};

&risaf5 {

 status = 'disabled';

};

&rtc {

 status = 'okay';

};

&tamp {

        wakeup-source;

        wakeup-parent = <&exti2>;

        st,tamp-passive-precharge = <2>;

        st,tamp-passive-nb-sample = <4>;

        st,tamp-passive-sample-clk-div = <16384>;

        /* Tamper button */

        tamp_button: tamp-passive@1 {

                status = 'disabled';

                reg = ;

                pinctrl-0 = <&tamp_in1_pin_a>;

                st,tamp-mode = ;

        };

};

/* USER CODE END addons */

在上一章节中提到stm32mp257d-bringup-mx-resmem.dtsi 和 stm32mp257d-bringup-mx-rif.dtsi 直接使用 SourceCode 压缩包 Optee-os 目录中的文件，如果还未拷贝，需要将其通过软链接或者拷贝的方式放到stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee/core/arch/arm/dts/目录下。

编译 Optee

myir@myir-vm: cd /home/myir/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee

myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee$ source /opt/st/myd-ld25x/4.2.4-snapshot/environment-setup-cortexa35-ostl-linux

myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee$ export FIP_DEPLOYDIR_ROOT=../../FIP_artifacts

myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee$ export FWDDR_DIR=../../stm32mp-ddr-phy-A2022.11-r0/stm32mp-ddr-phy-A2022.11

myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee$ make -f $PWD/../Makefile.sdk DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/optee CFG_EMBED_DTB_SOURCE_FILE=stm32mp257d-bringup-mx optee

注：已将上述Optee单独编译的命令存放在/home/myir/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee/build.sh

可以看到已经生成了bin文件

2.3. 配置和编译Uboot

已同样的方式进行手动添加uboot的设备树的一些配置，使用编辑工具打开uboot下的(BringupCA35DeviceTreeBringupu-bootstm32mp257d-bringup-mx.dts)

/* USER CODE BEGIN root */

aliases {

 serial0 = &usart2;

};

chosen {

 stdout-path = 'serial0:115200n8';

 };

/* USER CODE END root */

 需要增加eMMC的配置

&sdmmc2{

        pinctrl-names = 'default', 'opendrain', 'sleep';

        pinctrl-0 = <&sdmmc2_pins_mx>;

        pinctrl-1 = <&sdmmc2_opendrain_pins_mx>;

        pinctrl-2 = <&sdmmc2_sleep_pins_mx>;

        status = 'okay';

        /* USER CODE BEGIN sdmmc2 */

        non-removable;

        no-sd;

        no-sdio;

        st,neg-edge;

        bus-width = <8>;

        vmmc-supply = <&scmi_vdd_emmc>;

        vqmmc-supply = <&scmi_vddio2>;

        mmc-ddr-1_8v;

        mmc-hs200-1_8v;

        /* USER CODE END sdmmc2 */

};

 添加USB配置，后续用于刷机

/* USER CODE BEGIN addons */

&usb2_phy1{

        status = 'okay';

        /* USER CODE BEGIN usb2_phy1 */

        vdd33-supply = <&scmi_vdd3v3_usb>;

        /* USER CODE END usb2_phy1 */

};

&usb2_phy2{

        status = 'okay';

        /* USER CODE BEGIN usb2_phy2 */

        vdd33-supply = <&scmi_vdd3v3_usb>;

        /* USER CODE END usb2_phy2 */

};

&usb3dr{

        status = 'okay';

        /* USER CODE BEGIN usb3dr */

        dwc3: usb@48300000 {

                maximum-speed = 'high-speed';

                usb-role-switch;

                port {

                        dwc3_ep: endpoint {

                                remote-endpoint = <&typec_ep>;

                        };

                };

        };

        /* USER CODE END usb3dr */

};

&usbh{

        status = 'okay';

        /* USER CODE BEGIN usbh */

        usbh_ehci: usb@482f0000 {

                #address-cells = <1>;

                #size-cells = <0>;

                /* onboard HUB */

                hub@1 {