STM32MP157 linux5.15移植
STM32MP157 linux5.15移植
- 1. 初次编译
- 2. 移植
-
- 2.1 添加自己的板子
- 2.2 修改设备树
- 3. 编译下载
-
- 3.1 编译
- 3.2 制作bootfs
- 3.2 下载
- 4. 总结
参考母板是STM32MP157D-DK1开发板，移植开发板为100ASK_STM32MP157_V11。
- STM32MP157 tf-a2.6 optee3.16 u-boot2021.10 linux5.15移植
- STM32MP157启动流程
- STM32MP157 tf-a2.6移植](http://t.csdn.cn/RsUmv)
- STM32MP157 optee3.16移植](http://t.csdn.cn/qXDNU)
- STM32MP157 u-boot2021.10移植
- STM32MP157 linux5.15移植
- STM32MP157 buildroot-2022.02.5构建根文件系统
1. 初次编译
解压源码，并打补丁。可以参考README.HOW_TO.txt文件，里面说了怎么解压和打补丁，并且还说了如何编译。
#解压源码
$ tar -xvf linux-5.15.24.tar.xz
#进入源码目录
$ cd linux-5.15.24/
#打补丁
$ for p in `ls -1 ../*.patch`; do patch -p1 < $p; done
执行下列命令完成初次编译，O="$PWD/../build"是指定编译的输出目录。每次配置完需要令保存自己的配置(我的配置已保存在arch/arm/configs/stm32mp157d_100ask_defconfig中)，防止丢失。
#设置编译器
$ source ../../../../toolchain/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi
#配置
$ make ARCH=arm O="$PWD/../build" multi_v7_defconfig fragment*.config
$ for f in `ls -1 ../fragment*.config`; do scripts/kconfig/merge_config.sh -m -r -O $PWD/../build $PWD/../build/.config $f; done
#进入编译目录
$ cd ../build/
#配置
$ make menuconfig
#编译uImage vmlinux dtbs modules
$ make ARCH=arm uImage vmlinux dtbs modules LOADADDR=0xC2000040 -j12
2. 移植
2.1 添加自己的板子
复制U-Boot源码下的stm32mp157d-100ask.dts和stm32mp15xx-100ask.dtsi设备树到Linux源码目录下的arch/arm/boot/dts目录中，修改设备树目录下的Makefile。
//dtb-$(CONFIG_ARCH_STM32)变量后追加stm32mp157d-100ask
dtb-$(CONFIG_ARCH_STM32) += \
stm32f429-disco.dtb \
stm32f469-disco.dtb \
stm32f746-disco.dtb \
// 此处代码已省略
stm32mp157c-lxa-mc1.dtb \
stm32mp157c-odyssey.dtb \
stm32mp157d-100ask.dtb
2.2 修改设备树
复制U-Boot的设备树无需做修改，只有网络需要简单调整。将qca,clk-out-frequency = <125000000>; qca,keep-pll-enabled;两个属性移到phy节点中。
ðernet0 {
status = "okay";
pinctrl-0 = <ðernet0_rgmii_pins_a>;
pinctrl-1 = <ðernet0_rgmii_sleep_pins_a>;
pinctrl-names = "default", "sleep";
phy-mode = "rgmii-id";
max-speed = <1000>;
phy-handle = <&phy0>;
nvmem-cells = <ðernet_mac_address>;
nvmem-cell-names = "mac-address";
//qca,clk-out-frequency = <125000000>;
//qca,keep-pll-enabled;
mdio0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
phy0: ethernet-phy@6 {
reg = <6>;
reset-gpios = <&gpiog 0 GPIO_ACTIVE_LOW>;
reset-assert-us = <2000>;
reset-deassert-us = <2000>;
//添加到这里
qca,clk-out-frequency = <125000000>;
qca,keep-pll-enabled;
};
};
};
3. 编译下载
3.1 编译
执行编译命令，进行编译。
$ make ARCH=arm uImage vmlinux dtbs modules LOADADDR=0xC2000040 -j12
3.2 制作bootfs
进入FIP_artifacts目录，执行下列命令制作bootfs。
$ mkdir boot
$ dd if=/dev/zero of=bootfs.ext4 bs=1M count=16
$ mkfs.ext4 -L bootfs bootfs.ext4
$ sudo mount bootfs.ext4 boot
$ sudo cp -f ../linux-stm32mp-5.15.24-stm32mp1-r1-r0/build/arch/arm/boot/uImage boot/
$ sudo cp -f ../linux-stm32mp-5.15.24-stm32mp1-r1-r0/build/arch/arm/boot/dts/stm32mp157d-100ask.dtb boot/
$ sudo umount boot
3.2 下载
选择一个脚本进行烧写，并设置好拨码开关启动。
#EMMC烧写脚本FlashLayout_emmc_stm32mp157d-100ask-trusted.tsv
#Opt Id Name Type IP Offset Binary
- 0x01 fsbl-boot Binary none 0x0 arm-trusted-firmware/tf-a-stm32mp157d-100ask-usb.stm32
- 0x03 fip-boot FIP none 0x0 fip/fip-stm32mp157d-100ask-trusted.bin
P 0x04 fsbl1 Binary mmc1 boot1 arm-trusted-firmware/tf-a-stm32mp157d-100ask-emmc.stm32
P 0x05 fsbl2 Binary mmc1 boot2 arm-trusted-firmware/tf-a-stm32mp157d-100ask-emmc.stm32
P 0x06 metadata1 Binary mmc1 0x00080000 arm-trusted-firmware/metadata.bin
P 0x07 metadata2 Binary mmc1 0x00100000 arm-trusted-firmware/metadata.bin
P 0x08 fip-a FIP mmc1 0x00180000 fip/fip-stm32mp157d-100ask-trusted.bin
PED 0x09 fip-b FIP mmc1 0x00580000 none
PED 0x0A u-boot-env Binary mmc1 0x00980000 none
P 0x10 bootfs System mmc1 0x00A00000 bootfs.ext4
#EMMC烧写脚本FlashLayout_emmc_stm32mp157d-100ask-optee.tsv
#Opt Id Name Type IP Offset Binary
- 0x01 fsbl-boot Binary none 0x0 arm-trusted-firmware/tf-a-stm32mp157d-100ask-usb.stm32
- 0x03 fip-boot FIP none 0x0 fip/fip-stm32mp157d-100ask-optee.bin
P 0x04 fsbl1 Binary mmc1 boot1 arm-trusted-firmware/tf-a-stm32mp157d-100ask-emmc.stm32
P 0x05 fsbl2 Binary mmc1 boot2 arm-trusted-firmware/tf-a-stm32mp157d-100ask-emmc.stm32
P 0x06 metadata1 Binary mmc1 0x00080000 arm-trusted-firmware/metadata.bin
P 0x07 metadata2 Binary mmc1 0x00100000 arm-trusted-firmware/metadata.bin
P 0x08 fip-a FIP mmc1 0x00180000 fip/fip-stm32mp157d-100ask-optee.bin
PED 0x09 fip-b FIP mmc1 0x00580000 none
PED 0x0A u-boot-env Binary mmc1 0x00980000 none
P 0x10 bootfs System mmc1 0x00A00000 bootfs.ext4
#SD卡烧写脚本FlashLayout_sdcard_stm32mp157d-100ask-trusted.tsv
#Opt Id Name Type IP Offset Binary
- 0x01 fsbl-boot Binary none 0x0 arm-trusted-firmware/tf-a-stm32mp157d-100ask-usb.stm32
- 0x03 fip-boot FIP none 0x0 fip/fip-stm32mp157d-100ask-trusted.bin
P 0x04 fsbl1 Binary mmc0 0x00004400 arm-trusted-firmware/tf-a-stm32mp157d-100ask-sdcard.stm32
P 0x05 fsbl2 Binary mmc0 0x00044400 arm-trusted-firmware/tf-a-stm32mp157d-100ask-sdcard.stm32
P 0x06 metadata1 Binary mmc0 0x00084400 arm-trusted-firmware/metadata.bin
P 0x07 metadata2 Binary mmc0 0x000C4400 arm-trusted-firmware/metadata.bin
P 0x08 fip-a FIP mmc0 0x00104400 fip/fip-stm32mp157d-100ask-trusted.bin
PED 0x09 fip-b FIP mmc0 0x00504400 none
PED 0x0A u-boot-env Binary mmc0 0x00904400 none
P 0x10 bootfs System mmc0 0x00984400 bootfs.ext4
#SD卡烧写脚本FlashLayout_sdcard_stm32mp157d-100ask-optee.tsv
#Opt Id Name Type IP Offset Binary
- 0x01 fsbl-boot Binary none 0x0 arm-trusted-firmware/tf-a-stm32mp157d-100ask-usb.stm32
- 0x03 fip-boot FIP none 0x0 fip/fip-stm32mp157d-100ask-optee.bin
P 0x04 fsbl1 Binary mmc0 0x00004400 arm-trusted-firmware/tf-a-stm32mp157d-100ask-sdcard.stm32
P 0x05 fsbl2 Binary mmc0 0x00044400 arm-trusted-firmware/tf-a-stm32mp157d-100ask-sdcard.stm32
P 0x06 metadata1 Binary mmc0 0x00084400 arm-trusted-firmware/metadata.bin
P 0x07 metadata2 Binary mmc0 0x000C4400 arm-trusted-firmware/metadata.bin
P 0x08 fip-a FIP mmc0 0x00104400 fip/fip-stm32mp157d-100ask-optee.bin
PED 0x09 fip-b FIP mmc0 0x00504400 none
PED 0x0A u-boot-env Binary mmc0 0x00904400 none
P 0x10 bootfs System mmc0 0x00984400 bootfs.ext4
进入U-Boot命令行，mmc dev 0设置mmc设备(0是SD卡，1是EMMC)，mmc part查看分区表。
根据分区表设置bootcmd，saveenv保存环境变量并重启。
#SD卡设置
setenv bootcmd 'ext4load mmc 0:8 c2000000 uImage; ext4load mmc 0:8 c4000000 stm32mp157d-100ask.dtb; bootm c2000000 - c4000000'
#EMMC设置
setenv bootcmd 'ext4load mmc 1:6 c2000000 uImage; ext4load mmc 1:6 c4000000 stm32mp157d-100ask.dtb; bootm c2000000 - c4000000'
内核正常启动，无法挂载跟文件系统，内核给出了警告。
4. 总结
因为没有根文件系统，无法充分验证移植的正确性，下一篇文章我会利用Buildroot构建一个简单的根文件系统。这些代码只启动板子，其他功能问题并没有解决。
学习笔记仅供参考，欢迎指正错误，如有侵权请及时联系。
移植源码地址：https://pan.baidu.com/s/19PvQ9K2D4qQ_dqikRYTWrA
提取码：1234