STM32MP25x开发板Bring Up培训课程(中)
2025-02-20
1846
来源：米尔电子
米尔基于STM32MP257核心板及开发板
2.修改设备树
查看生成的Bring up工程空文件的设备树，CA35的设备树文件夹，其他的是M33核的工程资料。
我们可以看到生成的设备树文件如下：
myir@myir-vm:/mnt/hgfs/ShareWorkspace/stm32mp25x-bringup/Bringup/CA35/DeviceTree/Bringup$ tree -l . ├── kernel │ ├── stm32mp257d-bringup-mx.dts │ └── stm32mp257d-bringup-mx-resmem.dtsi ├── optee-os │ ├── stm32mp257d-bringup-mx.dts │ ├── stm32mp257d-bringup-mx-rcc.dtsi │ ├── stm32mp257d-bringup-mx-resmem.dtsi │ └── stm32mp257d-bringup-mx-rif.dtsi ├── tf-a │ ├── stm32mp257d-bringup-mx.dts │ ├── stm32mp257d-bringup-mx-fw-config.dts │ ├── stm32mp257d-bringup-mx-rcc.dtsi │ └── stm32mp25-mx.dtsi └── u-boot ├── stm32mp257d-bringup-mx.dts ├── stm32mp257d-bringup-mx-resmem.dtsi └── stm32mp257d-bringup-mx-u-boot.dtsi 4 directories, 13 files
以上的设备树已经配置了大部分内容的工程，但是工程是还无法全部启动，我们需要先把设备树同步到相应的BSP代码中。
stm32mp25x-BringUp-bsp.tar.gz已拷贝并解压到虚拟机：/home/myir。
注：windows和ubuntu之间目录共享
myir@myir-vm:~/stm32mp25x-BringUp-bsp$ tree -L 2 . ├── Bringup │ ├── Bringup.ioc │ ├── CA35 │ ├── CM33 │ ├── Common │ └── Drivers ├── build ├── FIP_artifacts │ ├── arm-trusted-firmware │ ├── fip │ ├── flash-all.sh │ ├── FlashLayout_emmc_stm32mp25x-bringup-mx.tsv │ ├── flash.sh │ ├── optee │ └── u-boot ├── myir-st-optee │ ├── fiptool-stm32mp │ ├── Makefile.sdk │ ├── myir-st-external-dt │ ├── myir-st-optee │ └── README ├── myir-st-tfa │ ├── fiptool-stm32mp │ ├── Makefile.sdk │ └── tf-a-myir ├── myir-st-uboot │ ├── fiptool-stm32mp │ ├── Makefile.sdk │ └── u-boot-myir └── stm32mp-ddr-phy-A2022 .11 -r0 ├── README.HOW_TO.txt └── stm32mp-ddr-phy-A2022 .11 19 directories, 13 files
在“虚拟机设置”选项中设置完成后， 启动虚拟机执行如下命令进行挂载：
myir@myir-vm# sudo vmhgfs-fuse .host:/ /mnt/hgfs -o allow_other
sudo 密码为：123456
在虚拟机的/mnt/hgfs目录下已经成功挂载上共享的目录，如未挂载上，可以重新启动下虚拟机。
/home/myir/目录为我这边虚拟机的目录，实际目录以自己本机为准。
tf-a设备树软链接：
myir@myir-vm:/mnt/hgfs/ShareWorkspace# ln -s /mnt/hgfs/ShareWorkspace/Bringup/CA35/DeviceTree/bringup/tf-a/* /home/myir/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir/fdts/
Optee-os设备树stm32mp257d-bringup-mx.dts和stm32mp257d-bringup-mx-rcc.dtsi软链接：
myir@myir-vm:/mnt/hgfs/ShareWorkspace# ln -s /mnt/hgfs/ShareWorkspace/Bringup/CA35/DeviceTree/bringup/optee-os/stm32mp257d-bringup-mx.dts /home/myir/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee/core/arch/arm/dts/ root@myir-vm:/mnt/hgfs/ShareWorkspace# ln -s /mnt/hgfs/ShareWorkspace/Bringup/CA35/DeviceTree/bringup/optee-os/stm32mp257d-bringup-mx-rcc.dtsi /home/myir/stm32mp25x-BringUp-bsp/myir-st-optee/myir-st-optee/core/arch/arm/dts/
Optee-os设备树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，可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。
Uboot设备树软链接：
myir@myir-vm:/mnt/hgfs/ShareWorkspace# ln -s /mnt/hgfs/ShareWorkspace/Bringup/CA35/DeviceTree/bringup/u-boot/* /home/myir/stm32mp25x-BringUp-bsp/myir-st-uboot/u-boot-myir/arch/arm/dts/
Kernel设备树软链接：
Note：STM32CubeMX的规则是先生成Kernel的dts，然后将生成的dts文件拷贝到u-boot目录下，也就是说u-boot的设备树stm32mp257d-bringup-mx.dts是从kernel目录拷贝过来的，所以在U-Boot阶段修改设备树，添加User code时，请同步修改kernel的设备树或者将修改好的设备树拷贝到Kernel目录，防止下次使用CubeMX生成设备树的时候，u-boot部分的修改被kernel未修改的设备树覆盖。
2.1.配置和编译TF-A
需要手动添加TF-A阶段的串口配置的user code.使用文本编辑工具打开生成的 打开 TF-A 设备树(BringupCA35DeviceTreeBringuptf-astm32mp257d-bringup-mx.dts)
添加头文件
/* USER CODE BEGIN includes */ #include "stm32mp25xf.dtsi" #include "stm32mp25-pinctrl.dtsi" /* USER CODE END includes */
在“USER CODE BEGIN root”位置添加“chosen”和“aliases”节点：
/* USER CODE BEGIN root */
aliases {
serial0 = &usart2;
};
chosen {
stdout-path = "serial0:115200n8";
};
/* USER CODE END root */增加PMIC配置
&i2c7{
pinctrl-names = "default";
pinctrl-0 = <&i2c7_pins_mx>;
status = "okay";
/* USER CODE BEGIN i2c7 */
pmic2: stpmic@33 {
compatible = "st,stpmic2";
reg = <0x33>;
status = "okay";
regulators {
compatible = "st,stpmic2-regulators";
vddcpu: buck1 {
regulator-name = "vddcpu";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <910000>;
regulator-always-on;
};
vddcore: buck2 {
regulator-name = "vddcore";
regulator-min-microvolt = <820000>;
regulator-max-microvolt = <820000>;
regulator-always-on;
};
vddgpu: buck3 {
regulator-name = "vddgpu";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-always-on;
};
vddio_pmic: buck4 {
regulator-name = "vddio_pmic";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
v1v8: buck5 {
regulator-name = "v1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
vdd2_ddr: buck6 {
regulator-name = "vdd2_ddr";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
};
v3v3: buck7 {
regulator-name = "v3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdda1v8_aon: ldo1 {
regulator-name = "vdda1v8_aon";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
vdd_emmc: ldo2 {
regulator-name = "vdd_emmc";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vdd1_ddr: ldo3 {
regulator-name = "vdd1_ddr";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-enable-ramp-delay = <1000>;
};
vdd3v3_usb: ldo4 {
regulator-name = "vdd3v3_usb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
v5v_hdmi: ldo5 {
regulator-name = "v5v_hdmi";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
};
vdd_sdcard: ldo7 {
regulator-name = "vdd_sdcard";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
vddio_sdcard: ldo8 {
regulator-name = "vddio_sdcard";
st,regulator-bypass-microvolt = <3300000>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
};
};
/* USER CODE END i2c7 */
};
&ddr{
status = "okay";
/* USER CODE BEGIN ddr */
vdd1-supply = <&vdd1_ddr>;
vdd2-supply = <&vdd2_ddr>;
vddq-supply = <&vdd2_ddr>;
/* USER CODE END ddr */
};使用文本编辑工具打开生成的 打开TF-A设备树(BringupCA35DeviceTreeBringuptf-astm32mp257d-bringup-mx-fw-config.dts)
本次配置不涉及防火墙内容，因此屏蔽如下内容：
/* st-mem-firewall {
bl31_context: bl31-context@81ff0000 {
reg = <0x0 0x81ff0000 0x0 0x10000>;
st,protreg = <RISAFPROT(RISAF_REG_ID(7), 0, 0, 0, RIF_NSEC, RIF_ENC_DIS, RIF_BREN_EN)>;
};
op_tee: op-tee@82000000 {
reg = <0x0 0x82000000 0x0 0x2000000>;
st,protreg = <RISAFPROT(RISAF_REG_ID(8), 0, 0, 0, RIF_NSEC, RIF_ENC_DIS, RIF_BREN_EN)>;
};
};
*/新增如下内容：
/* USER CODE BEGIN root */
dtb-registry {
soc_fw-config {
load-address = <0x0 0x81fc0000>;
max-size = <0x40000>;
};
tos_fw {
load-address = <0x0 0x82000000>;
max-size = <0x2000000>;
};
};
st-mem-firewall {
bl31_context: bl31-context@81fc0000 {
reg = <0x0 0x81fc0000 0x0 0x40000>;
st,protreg = <RISAFPROT(RISAF_REG_ID(7),RIF_CID0_BF|RIF_CID1_BF, RIF_CID0_BF|RIF_CID1_BF, 0, RIF_SEC, RIF_ENC_DIS, RIF_BREN_EN)>;
};
op_tee: op-tee@82000000 {
reg = <0x0 0x82000000 0x0 0x2000000>;
st,protreg = <RISAFPROT(RISAF_REG_ID(8), RIF_CID0_BF|RIF_CID1_BF, RIF_CID0_BF|RIF_CID1_BF, 0, RIF_SEC, RIF_ENC_DIS, RIF_BREN_EN)>;
};
};
/* USER CODE END root */以上已完成配置，就可以进行TF-A的单独编译。
myir@myir-vm: cd /home/myir/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir$ source /opt/st/myd-ld25x/4.2.4-snapshot/environment-setup-cortexa35-ostl-linux myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir$ export FIP_DEPLOYDIR_ROOT=../../FIP_artifacts myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir$ export FWDDR_DIR=../../stm32mp-ddr-phy-A2022.11-r0/stm32mp-ddr-phy-A2022.11 myir@myir-vm:~/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir$ make -f $PWD/../Makefile.sdk DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/arm-trusted-firmware TF_A_CONFIG="optee-emmc usb" TF_A_DEVICETREE=stm32mp257d-bringup-mx ELF_DEBUG_ENABLE='1' stm32 metadata
注：已将上述TF-A单独编译的命令存放在/home/myir/stm32mp25x-BringUp-bsp/myir-st-tfa/tf-a-myir/build.sh
编译完成：
2.2.配置与编译Optee-OS
现在进行OP-TEE的配置编译，首先需要在设备树中添加串口UART以及PWR相关的配置：
串口部分配置：
在之前STM32CubeMX配置串口的过程中，UART的配置是没办法在OP-TEE中使能的，也就是说OP-TEE的设备树中没有任何关于串口的配置，包括UART节点以及引脚，这些都需要我们手动添加上去：
(BringupCA35DeviceTreeBringupoptee-osstm32mp257d-bringup-mx.dts)
/* USER CODE BEGIN includes */ #include "stm32mp25-pinctrl.dtsi" #include <dt-bindings/mfd/st,stpmic2.h> #include <dt-bindings/regulator/st,stm32mp25-regulator.h> #include <dt-bindings/reset/stm32mp25-resets.h> #include <dt-bindings/soc/stm32mp-provisioning.h> #include <dt-bindings/tamper/st,stm32mp25-tamp.h> #include "stm32mp25xf.dtsi" /* USER CODE END includes */
/* USER CODE BEGIN root */
aliases {
serial0 = &usart2;
};
chosen {
stdout-path = "serial0:115200n8";
};
shadow-prov {
compatible = "st,provisioning";
hconf1_prov {
nvmem-cells = <&hconf1_otp>;
st,shadow-value = <0x00008DB6>;
};
};/* USER CODE END root */
&rcc{
status = "okay";
/* USER CODE BEGIN rcc */
st,c1msrd = <2>;
st,clk_opp {
st,ck_cpu1 {
cfg_1 {
hz = <1000000000>;
st,clksrc = <0>;
st,pll = <&pll1_cfg_1000Mhz>;
};
cfg_2 {
hz = <600000000>;
st,clksrc = <0>;
st,pll = <&pll2_cfg_600Mhz>;
};
};
};
/* USER CODE END rcc */
};添加pin脚定义
/* USER CODE BEGIN addons */
&usart2 {
pinctrl-names = "default";
pinctrl-0 = <&usart2_pins_a>;
status = "okay";
};
/* USER CODE BEGIN addons */使用是PMIC，那么VDD_CPU的配置需要包含在PMIC中，所以同样的建议copy tf-a里的配置，增加到I2C7的设备树里。
&i2c7{
status = "okay";
/* USER CODE BEGIN i2c7 */
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c7_pins_a>;
pinctrl-1 = <&i2c7_sleep_pins_a>;
i2c-scl-rising-time-ns = <185>;
i2c-scl-falling-time-ns = <20>;
clock-frequency = <400000>;
#address-cells = <1>;
#size-cells = <0>;
pmic2: stpmic2@33 {
compatible = "st,stpmic2";
reg = <0x33>;
st,wakeup-pin-number = <1>;
st,pmic-it-id = <IT_PKEY_FA IT_PKEY_RI>;
st,notif-it-id = <0 1>;
status = "okay";
regulators {
compatible = "st,stpmic2-regulators";
ldo1-supply = <&vddio_pmic>;
vddcpu: buck1 {
regulator-name = "vddcpu";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <910000>;
regulator-always-on;
st,pwrctrl-sel = <2>;
st,pwrctrl-enable;
default {
regulator-off-in-suspend;
};
lplv {
regulator-off-in-suspend;
};
standby {
regulator-off-in-suspend;
};
off {
regulator-off-in-suspend;
};
};
vddcore: buck2 {
regulator-name = "vddcore";
regulator-min-microvolt = <820000>;
regulator-max-microvolt = <820000>;
regulator-always-on;
st,pwrctrl-sel = <1>;
st,pwrctrl-enable;
default
{
regulator-on-in-suspend;
regulator-suspend-microvolt = <820000>;
};
lplv {
regulator-on-in-suspend;
regulator-suspend-microvolt = <670000>;
};
standby {
regulator-off-in-suspend;
};
off {
regulator-off-in-suspend;
};
};
vddgpu_pmic: buck3 {
regulator-name = "vddgpu_pmic";regulator-min-microvolt = <800000>;
regulator-max-microvolt = <900000>;
regulator-over-current-protection;
};
vddio_pmic: buck4 {
regulator-name = "vddio_pmic";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
st,mask-reset;
st,pwrctrl-sel = <1>;
st,pwrctrl-enable;
default {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
lplv {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
standby {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
off {
/* ToDo: switch to LP */
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
};
v1v8: buck5 {
regulator-name = "v1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
st,pwrctrl-sel = <1>;
st,pwrctrl-enable;
default {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
lplv {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
standby {regulator-off-in-suspend;
};
off {
regulator-off-in-suspend;
};
};
vdd2_ddr: buck6 {
regulator-name = "vdd2_ddr";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
//regulator-pull-down;
st,pwrctrl-sel = <1>;
st,pwrctrl-enable;
default {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1100000>;
};
lplv {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1100000>;
};
standby {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1100000>;
};
off {
regulator-off-in-suspend;
};
};
v3v3: buck7 {
regulator-name = "v3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-over-current-protection;
st,pwrctrl-sel = <1>;
st,pwrctrl-enable;
default {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
lplv {
regulator-on-in-suspend;
regulator-suspend-microvolt = <3300000>;
};
standby {
regulator-off-in-suspend;
};
off {
regulator-off-in-suspend;
};
};
vdda1v8_aon: ldo1 {
regulator-name = "vdda1v8_aon";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
st,alternate-input-source;
st,mask-reset;
};
vdd_emmc: ldo2 {
regulator-name = "vdd_emmc";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-over-current-protection;
st,pwrctrl-sel = <3>;
st,pwrctrl-reset;
};
vdd1_ddr: ldo3 {
regulator-name = "vdd1_ddr";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
st,pwrctrl-sel = <1>;
st,pwrctrl-enable;
default {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
lplv {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
standby {
regulator-on-in-suspend;
regulator-suspend-microvolt = <1800000>;
};
off {
regulator-off-in-suspend;
};
};
vdd3v3_usb: ldo4 {
regulator-name = "vdd3v3_usb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-over-current-protection;
};
v5v_hdmi: ldo5 {
regulator-name = "v5v_hdmi";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
st,regulator-bypass-microvolt = <5000000>;
st,pwrctrl-sel = <0>;
st,pwrctrl-enable;
};
v5v_vconn: ldo6 {
regulator-name = "v5v_vconn";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
st,regulator-bypass-microvolt = <5000000>;
st,pwrctrl-sel = <0>;
st,pwrctrl-reset;
};
vdd_sdcard: ldo7 {
regulator-name = "vdd_sdcard";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-over-current-protection;
st,regulator-bypass-microvolt = <3300000>;
st,pwrctrl-sel = <3>;
st,pwrctrl-reset;
};
vddio_sdcard: ldo8 {
regulator-name = "vddio_sdcard";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-over-current-protection;
st,regulator-bypass-microvolt = <3300000>;
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 = <VOLTD_SCMI_STPMIC2_BUCK2>;
voltd-supply = <&vddcore>;
};
scmi_v1v8: voltd-v1v8 {
reg = <VOLTD_SCMI_STPMIC2_BUCK5>;
voltd-supply = <&v1v8>;
};
scmi_v3v3: voltd-v3v3 {
reg = <VOLTD_SCMI_STPMIC2_BUCK7>;
voltd-supply = <&v3v3>;
};
scmi_vdd_emmc: voltd-vdd-emmc {
reg = <VOLTD_SCMI_STPMIC2_LDO2>;
voltd-supply = <&vdd_emmc>;
};
scmi_vdd3v3_usb: voltd-vdd3v3-usb {
reg = <VOLTD_SCMI_STPMIC2_LDO4>;
voltd-supply = <&vdd3v3_usb>;
};
scmi_vdd_sdcard: voltd-vdd_sdcard {
reg = <VOLTD_SCMI_STPMIC2_LDO7>;
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 = <EXT_TAMPER_1 0>;
pinctrl-0 = <&tamp_in1_pin_a>;
st,tamp-mode = <TAMPER_POTENTIAL_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 {
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 = <VOLTD_SCMI_STPMIC2_BUCK2>;
regulator-name = "vddcore";
};
scmi_v1v8: regulator@14 {
reg = <VOLTD_SCMI_STPMIC2_BUCK5>;
regulator-name = "v1v8";
};
scmi_v3v3: regulator@16 {
reg = <VOLTD_SCMI_STPMIC2_BUCK7>;
regulator-name = "v3v3";
};
scmi_vdd_emmc: regulator@18 {
reg = <VOLTD_SCMI_STPMIC2_LDO2>;
regulator-name = "vdd_emmc";
};
scmi_vdd3v3_usb: regulator@20 {
reg = <VOLTD_SCMI_STPMIC2_LDO4>;
regulator-name = "vdd3v3_usb";
};
scmi_vdd_sdcard: regulator@23 {
reg = <VOLTD_SCMI_STPMIC2_LDO7>;
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：
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