[Buildroot] [PATCH 1/1] board/stm32f469-disco: update board configuration

Christophe Priouzeau christophe.priouzeau at foss.st.com
Mon Jul 12 09:43:49 UTC 2021


Hi,
With the increase size of the kernel and support of stm32f4
board on U-Boot, I prefer to use U-Boot as first boot stage instead of 
afboot.
The usage of U-Boot, permit to be more generic and permit to have more 
functionnality (like support of network, boot on sdcard, use external 
storage, ...).
To goal of this boards configuration are to provide a generic way to 
boot a linux on stm32f469 board.
The usage of XIP kernel can be interesting but given the size of the 
kernel and the potential increase size due to addition of driver, the 
xip kernel usage are a specific configuration which are no interest to 
be on generic bsp configuration but on specific configuration.

Regards
Christophe
> ------------------------------------------------------------------------
> *From:* Ygenks <eugentoo at gmail.com>
> *Sent:* Friday, July 9, 2021 7:36 PM
> *To:* 
> *Cc:* Christophe PRIOUZEAU <christophe.priouzeau at st.com>; Ygenks 
> <eugentoo at gmail.com>
> *Subject:* [PATCH 1/1] board/stm32f469-disco: update board configuration
> From: Ygenks <eugentoo at gmail.com>
> 
> Update STM32F469-disco configuration files to operate with new kernel.
> 
> Result of make tinyconfig was taken as a starting point to fit kernel
> into flash memory.
> Current setup fits in 2MB on-chip flash memory with rootfs
> offloaded to MMC card.
> 
> Kernel features enabled:
>      - MMC card driver
>      - DRM MIPI-DSI drivers
>      - Random number generator
> Fixes:
>      - Move kernel to new flash bank due to growth of dtb size
>      - Fix kernel start address in bootloader
>      - Remove outdated path which doesn't affect normal operation mode
> 
> Signed-off-by: Yauheni Saldatsenka <eugentoo at gmail.com>
> Signed-off-by: Ygenks <eugentoo at gmail.com>
> ---
>   .../common/stm32f4xx/genimage.cfg.template    |  10 +
>   .../common/stm32f4xx/stm32-post-build.sh      |   7 +
>   .../stm32f469-disco/flash.sh                  |   4 +-
>   .../stm32f469-disco/linux/defconfig           | 133 ++++++++++
>   .../stm32f469-disco/linux/stm32f469-disco.dts | 240 ++++++++++++++++++
>   .../0002-kernel-start-address.patch           |  21 ++
>   .../patches/afboot-stm32/0003-no-mpu.patch    |  22 ++
>   configs/stm32f469_disco_defconfig             |  31 +--
>   8 files changed, 452 insertions(+), 16 deletions(-)
>   create mode 100644 
> board/stmicroelectronics/common/stm32f4xx/genimage.cfg.template
>   create mode 100644 
> board/stmicroelectronics/stm32f469-disco/linux/defconfig
>   create mode 100644 
> board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts
>   create mode 100644 
> board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch
>   create mode 100644 
> board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch
> 
> diff --git 
> a/board/stmicroelectronics/common/stm32f4xx/genimage.cfg.template 
> b/board/stmicroelectronics/common/stm32f4xx/genimage.cfg.template
> new file mode 100644
> index 0000000000..771b9dc8a1
> --- /dev/null
> +++ b/board/stmicroelectronics/common/stm32f4xx/genimage.cfg.template
> @@ -0,0 +1,10 @@
> +image sdcard.img {
> +       hdimage {
> +               gpt = true
> +       }
> +
> +       partition rootfs {
> +               image = "rootfs.ext2"
> +               bootable = "yes"
> +       }
> +}
> diff --git 
> a/board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh 
> b/board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh
> index e324afe59a..6a31f7d872 100755
> --- a/board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh
> +++ b/board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh
> @@ -6,3 +6,10 @@ sed -i '/^devpts/d' ${TARGET_DIR}/etc/fstab
>   # Kernel is built without network support
>   rm -f ${TARGET_DIR}/etc/init.d/S40network
>   rm -rf ${TARGET_DIR}/etc/network/
> +
> +GENIMAGE_CFG="$(mktemp --suffix genimage.cfg)"
> +GENIMAGE_TMP="${BUILD_DIR}/genimage.tmp"
> +
> +support/scripts/genimage.sh -c ${GENIMAGE_CFG}
> +
> +rm -f ${GENIMAGE_CFG}
> diff --git a/board/stmicroelectronics/stm32f469-disco/flash.sh 
> b/board/stmicroelectronics/stm32f469-disco/flash.sh
> index 984d2b2599..1f223c2ad7 100755
> --- a/board/stmicroelectronics/stm32f469-disco/flash.sh
> +++ b/board/stmicroelectronics/stm32f469-disco/flash.sh
> @@ -13,6 +13,8 @@ ${OUTPUT_DIR}/host/bin/openocd -f 
> board/stm32f469discovery.cfg \
>     -c "reset init" \
>     -c "flash probe 0" \
>     -c "flash info 0" \
> -  -c "flash write_image erase ${OUTPUT_DIR}/images/u-boot.bin 0x08000000" \
> +  -c "flash write_image erase ${OUTPUT_DIR}/images/stm32f469i-disco.bin 
> 0x08000000" \
> +  -c "flash write_image erase ${OUTPUT_DIR}/images/stm32f469-disco.dtb 
> 0x08004000" \
> +  -c "flash write_image erase ${OUTPUT_DIR}/images/xipImage 0x08010000" \
>     -c "reset run" \
>     -c "shutdown"
> diff --git a/board/stmicroelectronics/stm32f469-disco/linux/defconfig 
> b/board/stmicroelectronics/stm32f469-disco/linux/defconfig
> new file mode 100644
> index 0000000000..52441d12d0
> --- /dev/null
> +++ b/board/stmicroelectronics/stm32f469-disco/linux/defconfig
> @@ -0,0 +1,133 @@
> +# CONFIG_LOCALVERSION_AUTO is not set
> +CONFIG_KERNEL_XZ=y
> +CONFIG_NO_HZ_IDLE=y
> +CONFIG_HIGH_RES_TIMERS=y
> +CONFIG_PREEMPT=y
> +CONFIG_LOG_BUF_SHIFT=12
> +CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=10
> +CONFIG_CC_OPTIMIZE_FOR_SIZE=y
> +# CONFIG_MULTIUSER is not set
> +# CONFIG_SYSFS_SYSCALL is not set
> +# CONFIG_FHANDLE is not set
> +# CONFIG_POSIX_TIMERS is not set
> +# CONFIG_BUG is not set
> +# CONFIG_BASE_FULL is not set
> +# CONFIG_FUTEX is not set
> +# CONFIG_EPOLL is not set
> +# CONFIG_SIGNALFD is not set
> +# CONFIG_TIMERFD is not set
> +# CONFIG_EVENTFD is not set
> +# CONFIG_AIO is not set
> +# CONFIG_IO_URING is not set
> +# CONFIG_ADVISE_SYSCALLS is not set
> +# CONFIG_MEMBARRIER is not set
> +# CONFIG_KALLSYMS is not set
> +# CONFIG_RSEQ is not set
> +CONFIG_EMBEDDED=y
> +# CONFIG_VM_EVENT_COUNTERS is not set
> +# CONFIG_COMPAT_BRK is not set
> +CONFIG_SLOB=y
> +# CONFIG_SLAB_MERGE_DEFAULT is not set
> +# CONFIG_MMU is not set
> +CONFIG_ARCH_STM32=y
> +# CONFIG_MACH_STM32F429 is not set
> +# CONFIG_MACH_STM32F746 is not set
> +# CONFIG_MACH_STM32F769 is not set
> +# CONFIG_MACH_STM32H743 is not set
> +CONFIG_CPU_V7M_NUM_IRQ=240
> +# CONFIG_ARM_DMA_MEM_BUFFERABLE is not set
> +CONFIG_SET_MEM_PARAM=y
> +CONFIG_DRAM_BASE=0xc0000000
> +CONFIG_DRAM_SIZE=0x01000000
> +CONFIG_HZ_1000=y
> +# CONFIG_ATAGS is not set
> +CONFIG_XIP_KERNEL=y
> +CONFIG_XIP_PHYS_ADDR=0x08010000
> +CONFIG_XIP_DEFLATED_DATA=y
> +# CONFIG_SUSPEND is not set
> +# CONFIG_STACKPROTECTOR is not set
> +# CONFIG_COMPAT_32BIT_TIME is not set
> +# CONFIG_GCC_PLUGINS is not set
> +# CONFIG_BLK_DEV_BSG is not set
> +CONFIG_BINFMT_FLAT=y
> +CONFIG_BINFMT_SHARED_FLAT=y
> +# CONFIG_COREDUMP is not set
> +CONFIG_DEVTMPFS=y
> +CONFIG_DEVTMPFS_MOUNT=y
> +# CONFIG_STANDALONE is not set
> +# CONFIG_PREVENT_FIRMWARE_BUILD is not set
> +# CONFIG_FW_LOADER is not set
> +# CONFIG_ALLOW_DEV_COREDUMP is not set
> +# CONFIG_BLK_DEV is not set
> +CONFIG_EEPROM_93CX6=y
> +# CONFIG_CONSOLE_TRANSLATIONS is not set
> +# CONFIG_UNIX98_PTYS is not set
> +# CONFIG_LEGACY_PTYS is not set
> +# CONFIG_LDISC_AUTOLOAD is not set
> +CONFIG_SERIAL_STM32=y
> +CONFIG_SERIAL_STM32_CONSOLE=y
> +CONFIG_SERIAL_NONSTANDARD=y
> +# CONFIG_DEVMEM is not set
> +CONFIG_I2C_CHARDEV=y
> +CONFIG_I2C_STM32F4=y
> +CONFIG_I2C_STM32F7=y
> +CONFIG_GPIO_STMPE=y
> +# CONFIG_HWMON is not set
> +CONFIG_WATCHDOG=y
> +CONFIG_MFD_STMPE=y
> +CONFIG_REGULATOR=y
> +CONFIG_REGULATOR_FIXED_VOLTAGE=y
> +CONFIG_DRM=y
> +CONFIG_DRM_STM=y
> +CONFIG_DRM_STM_DSI=y
> +CONFIG_DRM_PANEL_SIMPLE=y
> +CONFIG_DRM_PANEL_ORISETECH_OTM8009A=y
> +CONFIG_LCD_CLASS_DEVICE=y
> +CONFIG_BACKLIGHT_CLASS_DEVICE=y
> +CONFIG_FRAMEBUFFER_CONSOLE=y
> +# CONFIG_USB_SUPPORT is not set
> +CONFIG_MMC=y
> +# CONFIG_PWRSEQ_EMMC is not set
> +CONFIG_MMC_ARMMMCI=y
> +CONFIG_NEW_LEDS=y
> +CONFIG_LEDS_CLASS=y
> +CONFIG_LEDS_GPIO=y
> +CONFIG_LEDS_TRIGGERS=y
> +CONFIG_LEDS_TRIGGER_HEARTBEAT=y
> +CONFIG_RTC_CLASS=y
> +CONFIG_RTC_DRV_STM32=y
> +CONFIG_DMADEVICES=y
> +CONFIG_STM32_DMA=y
> +CONFIG_STM32_DMAMUX=y
> +CONFIG_STM32_MDMA=y
> +# CONFIG_VIRTIO_MENU is not set
> +# CONFIG_VHOST_MENU is not set
> +CONFIG_IIO=y
> +CONFIG_STM32_ADC_CORE=y
> +CONFIG_STM32_ADC=y
> +CONFIG_EXT2_FS=y
> +# CONFIG_FILE_LOCKING is not set
> +# CONFIG_DNOTIFY is not set
> +# CONFIG_INOTIFY_USER is not set
> +# CONFIG_PROC_SYSCTL is not set
> +CONFIG_CONFIGFS_FS=y
> +# CONFIG_MISC_FILESYSTEMS is not set
> +CONFIG_NLS=y
> +CONFIG_CRYPTO=y
> +CONFIG_CRYPTO_CRC32C=y
> +CONFIG_CRC16=y
> +CONFIG_CRC_ITU_T=y
> +CONFIG_CRC7=y
> +CONFIG_PRINTK_TIME=y
> +CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
> +CONFIG_CONSOLE_LOGLEVEL_QUIET=15
> +CONFIG_MESSAGE_LOGLEVEL_DEFAULT=7
> +# CONFIG_SYMBOLIC_ERRNAME is not set
> +CONFIG_DEBUG_INFO=y
> +# CONFIG_ENABLE_MUST_CHECK is not set
> +# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
> +CONFIG_DEBUG_FS=y
> +# CONFIG_DEBUG_MISC is not set
> +# CONFIG_SCHED_DEBUG is not set
> +# CONFIG_RCU_TRACE is not set
> +# CONFIG_RUNTIME_TESTING_MENU is not set
> diff --git 
> a/board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts 
> b/board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts
> new file mode 100644
> index 0000000000..4c32d18d0e
> --- /dev/null
> +++ b/board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts
> @@ -0,0 +1,240 @@
> +/*
> + * Copyright 2016 - Lee Jones <lee.jones at linaro.org>
> + *
> + * This file is dual-licensed: you can use it either under the terms
> + * of the GPL or the X11 license, at your option. Note that this dual
> + * licensing only applies to this file, and not this project as a
> + * whole.
> + *
> + *  a) This file is free software; you can redistribute it and/or
> + *     modify it under the terms of the GNU General Public License as
> + *     published by the Free Software Foundation; either version 2 of the
> + *     License, or (at your option) any later version.
> + *
> + *     This file is distributed in the hope that it will be useful,
> + *     but WITHOUT ANY WARRANTY; without even the implied warranty of
> + *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + *     GNU General Public License for more details.
> + *
> + *     You should have received a copy of the GNU General Public
> + *     License along with this file; if not, write to the Free
> + *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
> + *     MA 02110-1301 USA
> + *
> + * Or, alternatively,
> + *
> + *  b) Permission is hereby granted, free of charge, to any person
> + *     obtaining a copy of this software and associated documentation
> + *     files (the "Software"), to deal in the Software without
> + *     restriction, including without limitation the rights to use,
> + *     copy, modify, merge, publish, distribute, sublicense, and/or
> + *     sell copies of the Software, and to permit persons to whom the
> + *     Software is furnished to do so, subject to the following
> + *     conditions:
> + *
> + *     The above copyright notice and this permission notice shall be
> + *     included in all copies or substantial portions of the Software.
> + *
> + *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> + *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
> + *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
> + *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
> + *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
> + *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
> + *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> + *     OTHER DEALINGS IN THE SOFTWARE.
> + */
> +
> +/dts-v1/;
> +#include "stm32f469.dtsi"
> +#include "stm32f469-pinctrl.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +
> +/ {
> +       model = "STMicroelectronics STM32F469i-DISCO board";
> +       compatible = "st,stm32f469i-disco", "st,stm32f469";
> +
> +       chosen {
> +               bootargs = "root=/dev/mmcblk0 rw fbcon=map:0";
> +               stdout-path = "serial0:115200n8";
> +       };
> +
> +       memory at c0000000 {
> +               device_type = "memory";
> +               reg = <0xc0000000 0x1000000>;
> +       };
> +
> +       aliases {
> +               serial0 = &usart3;
> +       };
> +
> +       mmc_vcard: mmc_vcard {
> +               compatible = "regulator-fixed";
> +               regulator-name = "mmc_vcard";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +       };
> +
> +       vdd_dsi: vdd-dsi {
> +               compatible = "regulator-fixed";
> +               regulator-name = "vdd_dsi";
> +               regulator-min-microvolt = <3300000>;
> +               regulator-max-microvolt = <3300000>;
> +       };
> +
> +       soc {
> +               dma-ranges = <0xc0000000 0xc0000000 0x10000000>;
> +       };
> +
> +       leds {
> +               compatible = "gpio-leds";
> +               led-green {
> +                       gpios = <&gpiog 6 GPIO_ACTIVE_LOW>;
> +                       linux,default-trigger = "heartbeat";
> +               };
> +               led-orange {
> +                       gpios = <&gpiod 4 GPIO_ACTIVE_LOW>;
> +               };
> +               led-red {
> +                       gpios = <&gpiod 5 GPIO_ACTIVE_LOW>;
> +               };
> +               led-blue {
> +                       gpios = <&gpiok 3 GPIO_ACTIVE_LOW>;
> +               };
> +       };
> +
> +       gpio_keys {
> +               compatible = "gpio-keys";
> +               #address-cells = <1>;
> +               #size-cells = <0>;
> +               autorepeat;
> +               button at 0 {
> +                       label = "User";
> +                       linux,code = <KEY_WAKEUP>;
> +                       gpios = <&gpioa 0 GPIO_ACTIVE_HIGH>;
> +               };
> +       };
> +
> +       /* This turns on vbus for otg for host mode (dwc2) */
> +       vcc5v_otg: vcc5v-otg-regulator {
> +               compatible = "regulator-fixed";
> +               enable-active-high;
> +               gpio = <&gpiob 2 GPIO_ACTIVE_HIGH>;
> +               regulator-name = "vcc5_host1";
> +               regulator-always-on;
> +       };
> +};
> +
> +&rcc {
> +       compatible = "st,stm32f469-rcc", "st,stm32f42xx-rcc", 
> "st,stm32-rcc";
> +};
> +
> +&clk_hse {
> +       clock-frequency = <8000000>;
> +};
> +
> +&dsi {
> +       #address-cells = <1>;
> +       #size-cells = <0>;
> +       status = "okay";
> +
> +       ports {
> +               #address-cells = <1>;
> +               #size-cells = <0>;
> +
> +               port at 0 {
> +                       reg = <0>;
> +                       dsi_in: endpoint {
> +                               remote-endpoint = <&ltdc_out_dsi>;
> +                       };
> +               };
> +
> +               port at 1 {
> +                       reg = <1>;
> +                       dsi_out: endpoint {
> +                               remote-endpoint = <&dsi_panel_in>;
> +                       };
> +               };
> +       };
> +
> +       panel-dsi at 0 {
> +               compatible = "orisetech,otm8009a";
> +               reg = <0>; /* dsi virtual channel (0..3) */
> +               reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>;
> +               power-supply = <&vdd_dsi>;
> +               status = "okay";
> +
> +               port {
> +                       dsi_panel_in: endpoint {
> +                               remote-endpoint = <&dsi_out>;
> +                       };
> +               };
> +       };
> +};
> +
> +&ltdc {
> +       status = "okay";
> +
> +       port {
> +               ltdc_out_dsi: endpoint at 0 {
> +                       remote-endpoint = <&dsi_in>;
> +               };
> +       };
> +};
> +
> +&rtc {
> +       status = "okay";
> +};
> +
> +&timers1 {
> +       status = "okay";
> +
> +       pwm {
> +               pinctrl-0 = <&pwm1_pins>;
> +               pinctrl-names = "default";
> +               status = "okay";
> +       };
> +
> +       timer at 0 {
> +               status = "okay";
> +       };
> +};
> +
> +&timers3 {
> +       status = "okay";
> +
> +       pwm {
> +               pinctrl-0 = <&pwm3_pins>;
> +               pinctrl-names = "default";
> +               status = "okay";
> +       };
> +
> +       timer at 2 {
> +               status = "okay";
> +       };
> +};
> +
> +&sdio {
> +       status = "okay";
> +       vmmc-supply = <&mmc_vcard>;
> +       cd-gpios = <&gpiog 2 GPIO_ACTIVE_LOW>;
> +       broken-cd;
> +       pinctrl-names = "default", "opendrain";
> +       pinctrl-0 = <&sdio_pins>;
> +       pinctrl-1 = <&sdio_pins_od>;
> +       bus-width = <4>;
> +};
> +
> +&usart3 {
> +       pinctrl-0 = <&usart3_pins_a>;
> +       pinctrl-names = "default";
> +       status = "okay";
> +};
> +
> +&usbotg_fs {
> +       dr_mode = "host";
> +       pinctrl-0 = <&usbotg_fs_pins_a>;
> +       pinctrl-names = "default";
> +       status = "okay";
> +};
> diff --git 
> a/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch 
> b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch
> new file mode 100644
> index 0000000000..614effa85b
> --- /dev/null
> +++ 
> b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0002-kernel-start-address.patch
> @@ -0,0 +1,21 @@
> +diff --git a/stm32f469i-disco.c b/stm32f469i-disco.c
> +index 2da1f4b65f..96e4dff65e 100644
> +--- a/stm32f469i-disco.c
> ++++ b/stm32f469i-disco.c
> +@@ -6,6 +6,7 @@
> + #include "gpio.h"
> + #include "mpu.h"
> +
> ++#define KERNEL_ADDR     0x08010000
> + #define CONFIG_HSE_HZ 8000000
> + #define CONFIG_PLL_M  8
> + #define CONFIG_PLL_N  360
> +@@ -85,7 +86,7 @@ static void fmc_wait_busy(void)
> +
> + void start_kernel(void)
> + {
> +-      void (*kernel)(uint32_t reserved, uint32_t mach, uint32_t dt) = 
> (void (*)(uint32_t, uint32_t, uint32_t))(0x08008000 | 1);
> ++      void (*kernel)(uint32_t reserved, uint32_t mach, uint32_t dt) = 
> (void (*)(uint32_t, uint32_t, uint32_t))(KERNEL_ADDR | 1);
> +
> +        kernel(0, ~0UL, 0x08004000);
> + }
> diff --git 
> a/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch 
> b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch
> new file mode 100644
> index 0000000000..bc66d2d0ef
> --- /dev/null
> +++ 
> b/board/stmicroelectronics/stm32f469-disco/patches/afboot-stm32/0003-no-mpu.patch
> @@ -0,0 +1,22 @@
> +diff --git a/stm32f469i-disco.c b/stm32f469i-disco.c
> +index d4d0909831..03f823f288 100644
> +--- a/stm32f469i-disco.c
> ++++ b/stm32f469i-disco.c
> +@@ -127,7 +127,7 @@ int main(void)
> +
> +        int i;
> +
> +-      mpu_config(0x0);
> ++      mpu_config(0xc0000000);
> +
> +        if (*FLASH_CR & FLASH_CR_LOCK) {
> +                *FLASH_KEYR = 0x45670123;
> +@@ -229,7 +229,7 @@ int main(void)
> +        usart_setup(usart_base, 45000000);
> +        usart_putch(usart_base, '.');
> +
> +-      *SYSCFG_MEMRMP = 0x4;
> ++      /* *SYSCFG_MEMRMP = 0x4; */
> +
> +        start_kernel();
> +
> diff --git a/configs/stm32f469_disco_defconfig 
> b/configs/stm32f469_disco_defconfig
> index e538a664e2..b8fba2524c 100644
> --- a/configs/stm32f469_disco_defconfig
> +++ b/configs/stm32f469_disco_defconfig
> @@ -1,25 +1,26 @@
>   BR2_arm=y
>   BR2_cortex_m4=y
> -BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_12=y
> -BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh 
> board/stmicroelectronics/stm32f469-disco/post-build.sh"
> -BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
> -BR2_ROOTFS_POST_SCRIPT_ARGS="-c 
> board/stmicroelectronics/stm32f469-disco/genimage.cfg"
> +BR2_GLOBAL_PATCH_DIR="board/stmicroelectronics/stm32f469-disco/patches"
> +BR2_KERNEL_HEADERS_5_13=y
> +# BR2_UCLIBC_INSTALL_UTILS is not set
> +BR2_GCC_VERSION_11_X=y
> +BR2_GCC_ENABLE_LTO=y
> +BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/common/stm32f4xx/stm32-post-build.sh"
>   BR2_LINUX_KERNEL=y
> -BR2_LINUX_KERNEL_CUSTOM_VERSION=y
> -BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.12.11"
> -BR2_LINUX_KERNEL_DEFCONFIG="stm32"
> -BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(LINUX_DIR)/arch/arm/configs/dram_0x00000000.config 
> board/stmicroelectronics/stm32f469-disco/linux.fragment"
> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/stmicroelectronics/stm32f469-disco/linux/defconfig"
>   BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
> -BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="zImage"
> +BR2_LINUX_KERNEL_XZ=y
> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="xipImage"
>   BR2_LINUX_KERNEL_DTS_SUPPORT=y
>   BR2_LINUX_KERNEL_INTREE_DTS_NAME="stm32f469-disco"
> +BR2_LINUX_KERNEL_CUSTOM_DTS_PATH="board/stmicroelectronics/stm32f469-disco/linux/stm32f469-disco.dts"
>   BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config"
> +BR2_PACKAGE_FB_TEST_APP=y
> +BR2_PACKAGE_FBV=y
>   BR2_TARGET_ROOTFS_EXT2=y
> -BR2_TARGET_ROOTFS_EXT2_SIZE="32M"
> +BR2_TARGET_ROOTFS_EXT2_2r0=y
> +BR2_TARGET_ROOTFS_EXT2_SIZE="100M"
>   # BR2_TARGET_ROOTFS_TAR is not set
> -BR2_TARGET_UBOOT=y
> -BR2_TARGET_UBOOT_BOARD_DEFCONFIG="stm32f469-discovery"
> -BR2_PACKAGE_HOST_DOSFSTOOLS=y
> -BR2_PACKAGE_HOST_GENIMAGE=y
> -BR2_PACKAGE_HOST_MTOOLS=y
> +BR2_TARGET_AFBOOT_STM32=y
>   BR2_PACKAGE_HOST_OPENOCD=y
> -- 
> 2.32.0
> 
> 
> ST Restricted
> 


-- 
Best regards / Cordialement,

Christophe Priouzeau | Tel: +33 244027320
STMicroelectronics
ST online: www.st.com<http://www.st.com/>



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