STM32MP157 u-boot2021.10移植
STM32MP157 u-boot2021.10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
-
- 2.2.1 修改串口Uart
- 2.2.2 修改时钟
- 2.2.3 修改电源
- 2.2.4 修改DDR
- 2.2.5 删除LCD HDMI和音频
- 2.2.6 修改EMMC和SD卡
- 2.2.6 修改USB
- 2.2.7 修改ethernet
- 2.2.8 修改LED
- 3. 编译下载
-
- 3.1 编译
- 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
- STM32MP157 optee3.16移植
- 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 u-boot-stm32mp-v2021.10-stm32mp1-r1-r0.tar.xz
#进入源码目录
$ cd u-boot-stm32mp-v2021.10-stm32mp1-r1/
#打补丁
$ for p in `ls -1 ../*.patch`; do patch -p1 < $p; done
执行以下命令完成编译，DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/u-boot是U-Boot编译结果存放的目录，如果不设置就会在上一级产生deploy目录存放编译结果，同级目录下生成的build目录存放编译中间文件。
#设置编译器
$ source ../../../../toolchain/environment-setup-cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi
#设置FIP目录
$ export FIP_DEPLOYDIR_ROOT=$PWD/../../FIP_artifacts
#编译
$ make -f $PWD/../Makefile.sdk DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/u-boot -j12 all
$ make -f $PWD/../Makefile.sdk -j12 all
因为TF_A和OPTEE我们只编译了参考母板和自己的板子，所以我们删除其他板子。编译还是有错误，没搞懂我们稍加修改，编译通过。但是FIP生成了两次，这是因为UBOOT_CONFIGS += trusted出现了两次，删掉一个即可。
#在86行，deploy-targets变量定义之后添加如下代码，定义fip_devicetree变量
fip_devicetree := $(foreach config, $(if $(UBOOT_CONFIG),$(UBOOT_CONFIG),$(UBOOT_CONFIGS)), \
$(foreach defconfig, $(if $(UBOOT_DEFCONFIG),$(UBOOT_DEFCONFIG),$(UBOOT_DEFCONFIG_$(config))), $(if $(DEVICETREE),$(DEVICETREE),$(UBOOT_DEVICETREE_$(defconfig)))) \
)
fip: $(deploy-targets)
FIP_DEPLOYDIR_UBOOT=$(DEPLOYDIR) FIP_DEVICETREE="$(DEVICETREE)" fiptool-stm32mp
#将上面两行改为
fip: $(deploy-targets)
FIP_DEPLOYDIR_UBOOT=$(DEPLOYDIR) FIP_DEVICETREE="$(fip_devicetree)" fiptool-stm32mp
2. 移植
2.1 添加自己的板子
执行一下命令完成自己的板子文件的创建
$ cd configs/
$ cp stm32mp15_defconfig stm32mp15_100ask_defconfig
$ cd ../arch/arm/dts/
$ cp stm32mp15xx-dkx.dtsi stm32mp15xx-100ask.dtsi
$ cp stm32mp157d-dk1.dts stm32mp157d-100ask.dts
#因为stm32mp157d-dk1-u-boot.dtsi只包含了stm32mp157a-dk1-u-boot.dtsi
$ cp stm32mp157a-dk1-u-boot.dtsi stm32mp157d-100ask-u-boot.dtsi
$ cp stm32mp15-ddr3-2x4Gb-1066-binG.dtsi stm32mp15-ddr3-2x2Gb-1066-binG.dtsi
修改设备树dts目录的Makefile，添加自己的设备树
//dtb-$(CONFIG_STM32MP15x)变量后追加stm32mp157d-100ask
dtb-$(CONFIG_STM32MP15x) += \
stm32mp157a-avenger96.dtb \
stm32mp157a-dk1.dtb \
stm32mp157a-ed1.dtb \
stm32mp157a-ev1.dtb \
stm32mp157a-icore-stm32mp1-ctouch2.dtb \
stm32mp157a-icore-stm32mp1-edimm2.2.dtb \
stm32mp157a-microgea-stm32mp1-microdev2.0.dtb \
stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dtb \
stm32mp157c-dk2.dtb \
stm32mp157c-ed1.dtb \
stm32mp157c-ev1.dtb \
stm32mp157c-odyssey.dtb \
stm32mp15xx-dhcom-drc02.dtb \
stm32mp157d-dk1.dtb \
stm32mp157d-ed1.dtb \
stm32mp157d-ev1.dtb \
stm32mp157f-dk2.dtb \
stm32mp157f-ed1.dtb \
stm32mp157f-ev1.dtb \
stm32mp15xx-dhcom-pdk2.dtb \
stm32mp15xx-dhcom-picoitx.dtb \
stm32mp15xx-dhcor-avenger96.dtb \
stm32mp157d-100ask.dtb
对设备树做简单的修改，修改stm32mp157d-100ask.dts文件
13 #include "stm32mp15xx-dkx.dtsi"
//改为
13 #include "stm32mp15xx-100ask.dtsi"
16 model = "STMicroelectronics STM32MP157D-DK1 Discovery Board";
17 compatible = "st,stm32mp157d-dk1", "st,stm32mp157";
//改为
16 model = "STMicroelectronics STM32MP157D-100ASK Discovery Board";
17 compatible = "st,stm32mp157d-100ask", "st,stm32mp157";
修改stm32mp157d-100ask-u-boot.dtsi文件
8 #include "stm32mp15-ddr3-1x4Gb-1066-binG.dtsi"
//改为
8 #include "stm32mp15-ddr3-2x2Gb-1066-binG.dtsi"
在Makefile.sdk文件中添加自己的板子，删除stm32mp13_defconfig添加stm32mp15_100ask_defconfig
UBOOT_CONFIGS += trusted
# Init default config settings
UBOOT_DEFCONFIG_trusted += stm32mp15_defconfig
UBOOT_BINARY_stm32mp15_defconfig ?= u-boot.dtb
UBOOT_DEVICETREE_stm32mp15_defconfig ?= stm32mp157d-dk1
# Init default config settings
UBOOT_DEFCONFIG_trusted += stm32mp15_100ask_defconfig
UBOOT_BINARY_stm32mp15_100ask_defconfig ?= u-boot.dtb
UBOOT_DEVICETREE_stm32mp15_100ask_defconfig ?= stm32mp157d-100ask
编译生成了u-boot-stm32mp157d-100ask-trusted.dtb文件
2.2 修改设备树
U-Boot的SPL和TF-A的功能有重合，所以有一部分设备树是一样的。ST并没有使用U-Boot的SPL，和SPL相关的有些设备树不做修改也不影响，比如内存。这里我都做了修改，因为我也不知道具体哪些可以不改，stm32mp157d-100ask-u-boot.dtsi文件中基本是和SPL相关的。这篇文章的目的是启动Linux内核，所以LCD、HDMI和音频等驱动不会实现，但是会实现type-c和网络方便下载和调试。
2.2.1 修改串口Uart
100ASK_STM32MP157_V11开发板的串口和参考母板的串口都使用的是uart4，但是用的引脚不同。在stm32mp157d-100ask.dts文件中引用pinctrl节点，在其下追加uart4_pins_d、uart4_idle_pins_d和uart4_sleep_pins_d节点。
//修改stm32mp157d-100ask.dts文件
&pinctrl {
uart4_pins_d: uart4-3 {
pins1 {
pinmux = <STM32_PINMUX('A', 12, AF6)>; /* UART4_TX */
bias-disable;
drive-push-pull;
slew-rate = <0>;
};
pins2 {
pinmux = <STM32_PINMUX('A', 11, AF6)>; /* UART4_RX */
bias-disable;
};
};
uart4_idle_pins_d: uart4-idle-3 {
pins1 {
pinmux = <STM32_PINMUX('A', 12, ANALOG)>; /* UART4_TX */
};
pins2 {
pinmux = <STM32_PINMUX('A', 11, AF6)>; /* UART4_RX */
bias-disable;
};
};
uart4_sleep_pins_d: uart4-sleep-3 {
pins {
pinmux = <STM32_PINMUX('A', 12, ANALOG)>, /* UART4_TX */
<STM32_PINMUX('A', 11, ANALOG)>; /* UART4_RX */
};
};
};
修改uart4对引脚的配置，把uart4_pins_a改为uart4_pins_d。
//修改stm32mp15xx-100ask.dtsi文件
&uart4 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&uart4_pins_a>;
pinctrl-1 = <&uart4_sleep_pins_a>;
pinctrl-2 = <&uart4_idle_pins_a>;
/delete-property/dmas;
/delete-property/dma-names;
status = "okay";
};
//改为
&uart4 {
pinctrl-names = "default", "sleep", "idle";
pinctrl-0 = <&uart4_pins_d>;
pinctrl-1 = <&uart4_sleep_pins_d>;
pinctrl-2 = <&uart4_idle_pins_d>;
/delete-property/dmas;
/delete-property/dma-names;
status = "okay";
};
2.2.2 修改时钟
由于我们参考的官方母板采用的是有源晶振，100ASK_STM32MP157_V11开发板采用了无源晶振。上图是官方晶振原理图，下图为100ASK_STM32MP157_V11开发板原理图。U-Boot时钟为SPL阶段初始化，所以可以不改。
//删除stm32mp157d-100ask-u-boot.dtsi文件如下代码
&clk_hse {
st,digbypass;
};
2.2.3 修改电源
由于我们参考的官方母板使用了STPMIC1电源管理芯片，但是100ASK_STM32MP157_V11开发板没有使用电源管理芯片，使用的是固定电源。我们需要删除STPMIC1相关的东西，然后添加一些固定电源域完善设备树。
//修改stm32mp15xx-100ask.dtsi文件
/ {
// 此处代码已省略
vin: vin {
compatible = "regulator-fixed";
regulator-name = "vin";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
};
//此处添加以下这些固定电源域
vddcore: regulator-vddcore {
compatible = "regulator-fixed";
regulator-name = "vddcore";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
};
vdd: regulator-vdd {
compatible = "regulator-fixed";
regulator-name = "vdd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};
v3v3: regulator-v3v3 {
compatible = "regulator-fixed";
regulator-name = "v3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};
vdd_usb: regulator-vdd-usb {
compatible = "regulator-fixed";
regulator-name = "vdd_usb";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};
};
&i2c4 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c4_pins_a>;
pinctrl-1 = <&i2c4_sleep_pins_a>;
i2c-scl-rising-time-ns = <185>;
i2c-scl-falling-time-ns = <20>;
clock-frequency = <400000>;
status = "okay";
/* spare dmas for other usage */
/delete-property/dmas;
/delete-property/dma-names;
stusb1600@28 {
compatible = "st,stusb1600";
reg = <0x28>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
interrupt-parent = <&gpioi>;
pinctrl-names = "default";
pinctrl-0 = <&stusb1600_pins_a>;
status = "okay";
vdd-supply = <&vin>;
connector {
compatible = "usb-c-connector";
label = "USB-C";
power-role = "dual";
typec-power-opmode = "default";
port {
con_usbotg_hs_ep: endpoint {
remote-endpoint = <&usbotg_hs_ep>;
};
};
};
};
/* 删除这部分注释代码
pmic: stpmic@33 {
compatible = "st,stpmic1";
reg = <0x33>;
interrupts-extended = <&exti_pwr 55 IRQ_TYPE_EDGE_FALLING>;
interrupt-controller;
#interrupt-cells = <2>;
status = "okay";
regulators {
// 此处代码已省略
};
*/
};
/* 删除这个节点
&vrefbuf {
// 此处代码已省略;
};
*/
//修改stm32mp157d-100ask-u-boot.dtsi文件
/* 删除这个节点
&pmic {
u-boot,dm-pre-reloc;
};
*/
官方开发板上电U-Boot利用ADC检测了供电type-c的供电电压是否正常，100ASK_STM32MP157_V11没有这个设计需要去掉，我们直接删除ADC设备树。
//修改stm32mp15xx-100ask.dtsi文件
/* 删除这个节点
&adc {
pinctrl-names = "default";
pinctrl-0 = <&adc12_usb_cc_pins_a>;
vdd-supply = <&vdd>;
vdda-supply = <&vdd>;
vref-supply = <&vrefbuf>;
status = "okay";
adc1: adc@0 {
// 此处代码已省略
};
adc2: adc@100 {
// 此处代码已省略
};
};
*/
最关键的一行st,adc_usb_pd = <&adc1 18>, <&adc1 19>;，ADC是用来检查上电电压，删了这一行就不会检测了，但是我们板子没ADC的设计直接删除。
//修改stm32mp157d-100ask-u-boot.dtsi文件
/ {
config {
u-boot,boot-led = "heartbeat";
u-boot,error-led = "error";
u-boot,mmc-env-partition = "u-boot-env";
//st,adc_usb_pd = <&adc1 18>, <&adc1 19>; 删除这行
st,fastboot-gpios = <&gpioa 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
st,stm32prog-gpios = <&gpioa 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
};
};
/* 删除这个节点
&adc {
status = "okay";
};
*/
2.2.4 修改DDR
DDR是在TF-A中初始化的可以不改，直接复制TF_A中的stm32mp15-ddr3-2x2Gb-1066-binG.dtsi文件。
/*
* Copyright (C) 2015-2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
*
*/
/*
* File generated by STMicroelectronics STM32CubeMX DDR Tool for MPUs
* DDR type: DDR3 / DDR3L
* DDR width: 32bits
* DDR density: 4Gb
* System frequency: 533000kHz
* Relaxed Timing Mode: false
* Address mapping type: RBC
*
* Save Date: 2022.08.28, save Time: 00:42:46
*/
#define DDR_MEM_NAME "DDR3-DDR3L 32bits 533000kHz"
#define DDR_MEM_SPEED 533000
#define DDR_MEM_SIZE 0x20000000
#define DDR_MSTR 0x00040401
#define DDR_MRCTRL0 0x00000010
#define DDR_MRCTRL1 0x00000000
#define DDR_DERATEEN 0x00000000
#define DDR_DERATEINT 0x00800000
#define DDR_PWRCTL 0x00000000
#define DDR_PWRTMG 0x00400010
#define DDR_HWLPCTL 0x00000000
#define DDR_RFSHCTL0 0x00210000
#define DDR_RFSHCTL3 0x00000000
#define DDR_RFSHTMG 0x0081008B
#define DDR_CRCPARCTL0 0x00000000
#define DDR_DRAMTMG0 0x121B2414
#define DDR_DRAMTMG1 0x000A041C
#define DDR_DRAMTMG2 0x0608090F
#define DDR_DRAMTMG3 0x0050400C
#define DDR_DRAMTMG4 0x08040608
#define DDR_DRAMTMG5 0x06060403
#define DDR_DRAMTMG6 0x02020002
#define DDR_DRAMTMG7 0x00000202
#define DDR_DRAMTMG8 0x00001005
#define DDR_DRAMTMG14 0x000000A0
#define DDR_ZQCTL0 0xC2000040
#define DDR_DFITMG0 0x02060105
#define DDR_DFITMG1 0x00000202
#define DDR_DFILPCFG0 0x07000000
#define DDR_DFIUPD0 0xC0400003
#define DDR_DFIUPD1 0x00000000
#define DDR_DFIUPD2 0x00000000
#define DDR_DFIPHYMSTR 0x00000000
#define DDR_ODTCFG 0x06000600
#define DDR_ODTMAP 0x00000001
#define DDR_SCHED 0x00000C01
#define DDR_SCHED1 0x00000000
#define DDR_PERFHPR1 0x01000001
#define DDR_PERFLPR1 0x08000200
#define DDR_PERFWR1 0x08000400
#define DDR_DBG0 0x00000000
#define DDR_DBG1 0x00000000
#define DDR_DBGCMD 0x00000000
#define DDR_POISONCFG 0x00000000
#define DDR_PCCFG 0x00000010
#define DDR_PCFGR_0 0x00000000
#define DDR_PCFGW_0 0x00000000
#define DDR_PCFGQOS0_0 0x02100C03
#define DDR_PCFGQOS1_0 0x00800100
#define DDR_PCFGWQOS0_0 0x01100C03
#define DDR_PCFGWQOS1_0 0x01000200
#define DDR_PCFGR_1 0x00000000
#define DDR_PCFGW_1 0x00000000
#define DDR_PCFGQOS0_1 0x02100C03
#define DDR_PCFGQOS1_1 0x00800040
#define DDR_PCFGWQOS0_1 0x01100C03
#define DDR_PCFGWQOS1_1 0x01000200
#define DDR_ADDRMAP1 0x00080808
#define DDR_ADDRMAP2 0x00000000
#define DDR_ADDRMAP3 0x00000000
#define DDR_ADDRMAP4 0x00001F1F
#define DDR_ADDRMAP5 0x07070707
#define DDR_ADDRMAP6 0x0F0F0707
#define DDR_ADDRMAP9 0x00000000
#define DDR_ADDRMAP10 0x00000000
#define DDR_ADDRMAP11 0x00000000
#define DDR_PGCR 0x01442E02
#define DDR_PTR0 0x0022AA5B
#define DDR_PTR1 0x04841104
#define DDR_PTR2 0x042DA068
#define DDR_ACIOCR 0x10400812
#define DDR_DXCCR 0x00000C40
#define DDR_DSGCR 0xF200011F
#define DDR_DCR 0x0000000B
#define DDR_DTPR0 0x38D488D0
#define DDR_DTPR1 0x098B00D8
#define DDR_DTPR2 0x10023600
#define DDR_MR0 0x00000840
#define DDR_MR1 0x00000000
#define DDR_MR2 0x00000208
#define DDR_MR3 0x00000000
#define DDR_ODTCR 0x00010000
#define DDR_ZQ0CR1 0x00000038
#define DDR_DX0GCR 0x0000CE81
#define DDR_DX1GCR 0x0000CE81
#define DDR_DX2GCR 0x0000CE81
#define DDR_DX3GCR 0x0000CE81
#include "stm32mp15-ddr.dtsi"
2.2.5 删除LCD HDMI和音频
U-Boot主要是为了启动Linux内核，所以音频和视频我并不打算实现，先将这些节点删除。
//修改stm32mp157d-100ask.dtsi文件
/ {
/* 删除这个节点
sound: sound {
compatible = "audio-graph-card";
label = "STM32MP15-DK";
routing =
"Playback" , "MCLK",
"Capture" , "MCLK",
"MICL" , "Mic Bias";
dais = <&sai2a_port &sai2b_port &i2s2_port>;
status = "okay";
};
*/
};
&i2c1 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c1_pins_a>;
pinctrl-1 = <&i2c1_sleep_pins_a>;
i2c-scl-rising-time-ns = <100>;
i2c-scl-falling-time-ns = <7>;
status = "okay";
/delete-property/dmas;
/delete-property/dma-names;
/* 删除这两个节点
hdmi-transmitter@39 {
// 此处代码已省略
};
cs42l51: cs42l51@4a {
// 此处代码已省略
};
*/
};
&i2s2 {
clocks = <&rcc SPI2>, <&rcc SPI2_K>, <&rcc PLL3_Q>, <&rcc PLL3_R>;
clock-names = "pclk", "i2sclk", "x8k", "x11k";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2s2_pins_a>;
pinctrl-1 = <&i2s2_sleep_pins_a>;
status = "okay";
/* 删除这个节点
i2s2_port: port {
// 此处代码已省略
};
*/
};
<dc {
pinctrl-names = "default", "sleep";
pinctrl-0 = <<dc_pins_a>;
pinctrl-1 = <<dc_sleep_pins_a>;
status = "okay";
/* 删除这个节点
port {
// 此处代码已省略
};
*/
};
&sai2 {
clocks = <&rcc SAI2>, <&rcc PLL3_Q>, <&rcc PLL3_R>;
clock-names = "pclk", "x8k", "x11k";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&sai2a_pins_a>, <&sai2b_pins_b>;
pinctrl-1 = <&sai2a_sleep_pins_a>, <&sai2b_sleep_pins_b>;
status = "okay";
/* 删除这两个节点
sai2a: audio-controller@4400b004 {
// 此处代码已省略
};
sai2b: audio-controller@4400b024 {
// 此处代码已省略
};
*/
};
2.2.6 修改EMMC和SD卡
100ASK_STM32MP157_V11开发板设计有EMMC，需要添加EMMC设备。100ASK_STM32MP157_V11开发板SD卡的设计和官方开发板的设计也有区别需要修改。
//修改stm32mp157d-100ask.dtsi文件
//SD卡修改为
&sdmmc1 {
pinctrl-names = "default", "opendrain", "sleep";
pinctrl-0 = <&sdmmc1_b4_pins_a>;
pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
broken-cd;
st,neg-edge;
bus-width = <4>;
vmmc-supply = <&v3v3>;
status = "okay";
};
//增加EMMC节点
&sdmmc2 {
pinctrl-names = "default", "opendrain", "sleep";
pinctrl-0 = <&sdmmc2_b4_pins_a &sdmmc2_d47_pins_a>;
pinctrl-1 = <&sdmmc2_b4_od_pins_a &sdmmc2_d47_pins_a>;
pinctrl-2 = <&sdmmc2_b4_sleep_pins_a &sdmmc2_d47_sleep_pins_a>;
non-removable;
no-sd;
no-sdio;
st,dirpol;
st,negedge;
bus-width = <8>;
vmmc-supply = <&v3v3>;
vqmmc-supply = <&v3v3>;
status = "okay";
};
2.2.6 修改USB
在pinctrl节点中添加fusb302_pins_a节点。
//修改stm32mp157d-100ask.dts文件
&pinctrl {
//增加这个节点
fusb302_pins_a: fusb302-0 {
pins {
pinmux = <STM32_PINMUX('F', 10, GPIO)>;
bias-pull-up;
};
};
};
官方开发板使用的是他们自己的USB芯片stusb1600，100ASK_STM32MP157_V11开发板用的是fusb302，但是他们好像是兼容的。100ASK_STM32MP157_V11开发板的usb芯片是在i2c1下地址是22，并且i2c1使用的复用引脚是i2c1_pins_b这一组，将"a"改为"b"。
//修改stm32mp157d-100ask.dtsi文件
&i2c1 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c1_pins_b>;
pinctrl-1 = <&i2c1_sleep_pins_b>;
i2c-scl-rising-time-ns = <100>;
i2c-scl-falling-time-ns = <7>;
status = "okay";
/delete-property/dmas;
/delete-property/dma-names;
//增加这个节点
fusb302@22 {
compatible = "fcs,fusb302", "st,stusb1600";
reg = <0x22>;
interrupts = <10 IRQ_TYPE_EDGE_FALLING>;
interrupt-parent = <&gpiof>;
pinctrl-names = "default";
pinctrl-0 = <&fusb302_pins_a>;
status = "okay";
typec_con: connector {
compatible = "usb-c-connector";
label = "USB-C";
power-role = "dual";
power-opmode = "default";
port {
con_usbotg_hs_ep: endpoint {
remote-endpoint = <&usbotg_hs_ep>;
};
};
};
};
};
&i2c4 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&i2c4_pins_a>;
pinctrl-1 = <&i2c4_sleep_pins_a>;
i2c-scl-rising-time-ns = <185>;
i2c-scl-falling-time-ns = <20>;
clock-frequency = <400000>;
status = "okay";
/* spare dmas for other usage */
/delete-property/dmas;
/delete-property/dma-names;
/* 删除这个节点
stusb1600@28 {
// 此处代码已省略
};
*/
};
2.2.7 修改ethernet
100ASK_STM32MP157_V11开发板使用的phy芯片是AR8035，而且复位引脚是连接在G0引脚上的，所以要添加reset这些属性。qca,clk-out-frequency = <125000000>; qca,keep-pll-enabled;是AR8035的属性，应该添加在phy节点里，但是U-Boot得添加在这里，Linux里是添加在phy节点里的。
//修改stm32mp157d-100ask.dtsi文件
#include 添加AR8035驱动，将REALTEK改为ATHEROS。
#修改stm32mp15_100ask_defconfig文件
CONFIG_PHY_REALTEK=y
#改为
CONFIG_PHY_ATHEROS=y
2.2.8 修改LED
设置我们的LED，U-Boot正常运行这个灯常亮，Linux下这个灯是心跳灯。
//修改stm32mp157d-100ask.dtsi文件
/ {
led {
compatible = "gpio-leds";
led-blue {
label = "heartbeat";
//gpios = <&gpiod 11 GPIO_ACTIVE_HIGH>;改为下面这行
gpios = <&gpioa 10 GPIO_ACTIVE_LOW>;
linux,default-trigger = "heartbeat";
default-state = "off";
};
};
};
出现错误，这个灯会闪烁。
//修改stm32mp157d-100ask-u-boot.dtsi文件
/ {
config {
u-boot,boot-led = "heartbeat";
u-boot,error-led = "error";
u-boot,mmc-env-partition = "u-boot-env";
//st,fastboot-gpios = <&gpiog 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; 按键不知道干什么，改成我们自己的
//st,stm32prog-gpios = <&gpiog 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;按键不知道干什么，改成我们自己的
st,fastboot-gpios = <&gpioa 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
st,stm32prog-gpios = <&gpioa 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
};
led {
led-red {
label = "error";
//gpios = <&gpiog 8 GPIO_ACTIVE_LOW>; 错误指示灯
gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
default-state = "off";
status = "okay";
};
};
};
3. 编译下载
3.1 编译
执行编译命令，进行编译。
$ make -f $PWD/../Makefile.sdk DEPLOYDIR=$FIP_DEPLOYDIR_ROOT/u-boot -j12 all
3.2 下载
烧写验证，烧写脚本如下。烧写SD或EMMC如果超时，勾选掉最底下的两行檫除。
#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
#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
#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
#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
烧写并设置好拨码开关，启动。错误是因为没有设置MAC地址，设置地址并保存。
setenv ipaddr 192.168.0.250
setenv ethaddr 00:04:9f:04:d2:33
setenv gatewayip 192.168.0.1
setenv netmask 255.255.255.0
setenv serverip 192.168.0.100
saveenv
重启没有错误，dhcp向路由器从新申请一个IP，ping服务器成功。
4. 总结
对于上层代码兼容要更好些，无需修改源码就调好了这些驱动，Linux移植我们将直接使用U-Boot的设备树。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。移植源码获取：
git clone https://github.com/Sonboy97/arm-ostl-linux-gnueabi.git
版本：9ae04fa8dbea4c984243179d1faa6e39cd18d2dd