米尔STM32MP25x开发板Bring Up培训课程(二)

                        compatible = 'usb424,2514';

                        reg = <1>;

                        vdd-supply = <&scmi_v3v3>;

                };

        };

        usbh_ohci: usb@482e0000 {

                status = 'disabled';

        };

        /* USER CODE END usbh */

};

&scmi_regu {

        scmi_vddio1: regulator@0 {

                regulator-min-microvolt = <1800000>;

                regulator-max-microvolt = <3300000>;

        };

        scmi_vddcore: regulator@11  {

                reg = BUCK2>;

                regulator-name = 'vddcore';

        };

        scmi_v1v8: regulator@14  {

                reg = ;

                regulator-name = 'v1v8';

        };

        scmi_v3v3: regulator@16 {

                reg = ;

                regulator-name = 'v3v3';

        };

        scmi_vdd_emmc: regulator@18 {

                reg = ;

                regulator-name = 'vdd_emmc';

        };

        scmi_vdd3v3_usb: regulator@20 {

                reg = ;

                regulator-name = 'vdd3v3_usb';

        };

        scmi_vdd_sdcard: regulator@23 {

                reg = ;

                regulator-name = 'vdd_sdcard';

        };

};

&mlahb {

        intc_rpmsg: interrupt-controller@1 {

                compatible = 'rpmsg,intc';

                reg = <1 0>;

                #interrupt-cells = <1>;

                interrupt-controller;

        };

        i2c_rpmsg: i2c@2 {

                compatible = 'rpmsg,i2c-controller';

                reg = <2 0>;

                rpmsg,dev-id = 'rpmsg_i2c';

                #address-cells = <1>;

                #size-cells = <0>;

                status = 'okay';

                typec@35 {

                        compatible = 'st,stm32mp25-typec';

                        reg = <0x35>;

                        interrupts-extended = <&intc_rpmsg 0>;

                        status = 'okay';

                        connector {

                                compatible = 'usb-c-connector';

                                label = 'USB-C';

                                port {

                                        typec_ep: endpoint {

                                                remote-endpoint = <&dwc3_ep>;

                                        };

                                };

                        };

                };

        };

};

/* USER CODE END addons */

使用编辑工具打开uboot下的(BringupCA35DeviceTreeBringupu-bootstm32mp257d-bringup-mx-u-boot.dtsi)

/* USER CODE BEGIN addons */

&dwc3 {

        dr_mode = 'peripheral';

        /delete-node/ port;

};

&i2c_rpmsg {

        /delete-node/ typec@35;

};

&usart2 {

 u-boot,dm-pre-reloc;

};

&usart2_pins_mx {

 u-boot,dm-pre-reloc;

 pins1 {

  u-boot,dm-pre-reloc;

 };

 pins2 {

  u-boot,dm-pre-reloc;

 };

};

/* USER CODE END addons */

PMIC配置与tf-a一样，这里略写。

修改完成后，编译 U-Boot

myir@myir-vm:~$ cd stm32mp25x-BringUp-bsp/myir-st-uboot/u-boot-myir

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

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

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

myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-uboot/u-boot-myir$ make -f $PWD/../Makefile.sdk DEPLOYDIR=../../FIP_artifacts/u-boot UBOOT_CONFIG=default UBOOT_DEFCONFIG=stm32mp25_defconfig UBOOT_BINARY=u-boot.dtb DEVICETREE=stm32mp257d-bringup-mx FIP_CONFIG='optee-emmc' all

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

编译完成后生成fip文件在定义的FIP_artifacts文件夹下，如下图所示：