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configs/stm32h747_disco_sd: new defconfig

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Support STM32h747i-disco board. It includes an STM32H747XI SoC with the
following resources:

 - 2 Mbytes Flash
 - 1 Mbyte SRAM
 - LCD-TFT controller
 - MIPI-DSI interface
 - FD-CAN
 - USB 2.0 high-speed/full-speed
 - Ethernet MAC
 - camera interface

Detailed information can be found at:
https://www.st.com/en/evaluation-tools/stm32h747i-disco.html

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
This commit is contained in:
Dario Binacchi
2026-01-19 18:04:03 +01:00
committed by Julien Olivain
parent c654e2b7c5
commit c5f5ac1cbb
10 changed files with 112 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
DEVELOPERS
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@@ -800,12 +800,14 @@ N: Dario Binacchi <dario.binacchi@amarulasolutions.com>
F: board/bsh/
F: board/stmicroelectronics/stm32f746-disco/
F: board/stmicroelectronics/stm32f769-disco/
F: board/stmicroelectronics/stm32h747-disco/
F: boot/ti-k3-boot-firmware/
F: configs/imx6ulz_bsh_smm_m2_defconfig
F: configs/imx8mn_bsh_smm_s2_defconfig
F: configs/imx8mn_bsh_smm_s2_pro_defconfig
F: configs/stm32f746_disco_sd_defconfig
F: configs/stm32f769_disco_sd_defconfig
F: configs/stm32h747_disco_sd_defconfig
F: package/aespipe/
F: package/armadillo/
F: package/atf/

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board/stmicroelectronics/stm32h747-disco/extlinux.conf Normal file
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@@ -0,0 +1,4 @@
label stm32h747i-disco-buildroot
kernel /boot/zImage
devicetree /boot/stm32h747i-disco.dtb
append console=ttySTM0,115200 root=/dev/mmcblk0p1 rw rootfstype=ext2 rootwait earlyprintk consoleblank=0 ignore_loglevel

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board/stmicroelectronics/stm32h747-disco/flash_sd.sh Executable file
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@@ -0,0 +1,18 @@
#!/bin/sh
OUTPUT_DIR=$1
if ! test -d "${OUTPUT_DIR}" ; then
echo "ERROR: no output directory specified."
echo "Usage: $0 OUTPUT_DIR"
exit 1
fi
"${OUTPUT_DIR}"/host/bin/openocd -f board/stm32h747i-disco.cfg \
-c "init" \
-c "reset init" \
-c "flash probe 0" \
-c "flash info 0" \
-c "flash write_image erase ${OUTPUT_DIR}/images/u-boot.bin 0x08000000" \
-c "reset run" \
-c "shutdown"

10
board/stmicroelectronics/stm32h747-disco/genimage.cfg Normal file
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@@ -0,0 +1,10 @@
image sdcard.img {
hdimage {
}
partition rootfs {
partition-type = 0x83
image = "rootfs.ext2"
size = 32M
}
}

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board/stmicroelectronics/stm32h747-disco/linux-sd.fragment Normal file
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# CONFIG_XIP_KERNEL is not set

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board/stmicroelectronics/stm32h747-disco/patches/linux/linux.hash Normal file
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@@ -0,0 +1,2 @@
# Locally calculated
sha256 189d1f409cef8d0d234210e04595172df392f8cb297e14b447ed95720e2fd940 linux-6.18.5.tar.xz

2
board/stmicroelectronics/stm32h747-disco/patches/uboot/uboot.hash Normal file
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@@ -0,0 +1,2 @@
# Locally calculated
sha256 b60d5865cefdbc75da8da4156c56c458e00de75a49b80c1a2e58a96e30ad0d54 u-boot-2026.01.tar.bz2

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board/stmicroelectronics/stm32h747-disco/post-build.sh Executable file
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@@ -0,0 +1,9 @@
#!/bin/sh
set -eu
BOARD_DIR="$(dirname "$0")"
# Kernel is built without devpts support
sed -i '/^devpts/d' "${TARGET_DIR}"/etc/fstab
install -m 0644 -D "${BOARD_DIR}"/extlinux.conf "${TARGET_DIR}"/boot/extlinux/extlinux.conf

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board/stmicroelectronics/stm32h747-disco/readme.txt Normal file
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@@ -0,0 +1,32 @@
STM32H747 Discovery
===================
This tutorial describes how to use the predefined Buildroot
configuration for the STM32H747 Discovery evaluation platform.
Building
--------
make stm32h747_disco_sd_defconfig
make
Flashing
--------
./board/stmicroelectronics/stm32h747-disco/flash_sd.sh output/
It will flash the U-Boot bootloader.
Creating SD card
----------------
Buildroot prepares an "sdcard.img" image in the output/images/ directory,
ready to be dumped on a SD card. Launch the following command as root:
dd if=output/images/sdcard.img of=/dev/<your-sd-device>
*** WARNING! This will destroy all the card content. Use with care! ***
For details about the medium image layout and its content, see the
definition in board/stmicroelectronics/stm32h747-disco/genimage.cfg.

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configs/stm32h747_disco_sd_defconfig Normal file
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BR2_arm=y
BR2_cortex_m7=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARMV7M_UCLIBC_STABLE=y
BR2_GLOBAL_PATCH_DIR="board/stmicroelectronics/stm32h747-disco/patches"
BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/stm32h747-disco/post-build.sh"
BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/stmicroelectronics/stm32h747-disco/genimage.cfg"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.5"
BR2_LINUX_KERNEL_DEFCONFIG="stm32"
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(LINUX_DIR)/arch/arm/configs/dram_0xd0000000.config board/stmicroelectronics/stm32h747-disco/linux-sd.fragment"
BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="zImage"
BR2_LINUX_KERNEL_DTS_SUPPORT=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="st/stm32h747i-disco"
BR2_LINUX_KERNEL_INSTALL_TARGET=y
BR2_PACKAGE_EVTEST=y
# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
BR2_TARGET_ROOTFS_EXT2=y
BR2_TARGET_ROOTFS_EXT2_SIZE="32M"
# BR2_TARGET_ROOTFS_TAR is not set
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
BR2_TARGET_UBOOT_CUSTOM_VERSION=y
BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2026.01"
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="stm32h747-disco"
BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
BR2_PACKAGE_HOST_GENIMAGE=y
BR2_PACKAGE_HOST_OPENOCD=y