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[95.248.31.95]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b87959ca4d6sm1140527566b.39.2026.01.19.09.04.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jan 2026 09:04:15 -0800 (PST) From: Dario Binacchi To: buildroot@buildroot.org Cc: Dario Binacchi , linux-amarula@amarulasolutions.com Subject: [PATCH v2 1/1] configs/stm32h747_disco_sd: new defconfig Date: Mon, 19 Jan 2026 18:04:03 +0100 Message-ID: <20260119170403.2855377-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Original-Sender: dario.binacchi@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=AijIOWIL; spf=pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=dario.binacchi@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com; dara=neutral header.i=@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , 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 --- Changes v1 -> v2: - drop board/stmicroelectronics/stm32h747-disco/patches/linux-headers/linux-headers.hash - Replace #!/bin/bash with #!/bin/sh in board/stmicroelectronics/stm32h747-disco/flash_sd.sh - Set '-eu' in board/stmicroelectronics/stm32h747-disco/post-build.sh - Fix a typo in board/stmicroelectronics/stm32h747-disco/readme.txt - Use bootlin toolchain DEVELOPERS | 2 ++ .../stm32h747-disco/extlinux.conf | 4 +++ .../stm32h747-disco/flash_sd.sh | 18 +++++++++++ .../stm32h747-disco/genimage.cfg | 10 ++++++ .../stm32h747-disco/linux-sd.fragment | 1 + .../stm32h747-disco/patches/linux/linux.hash | 2 ++ .../stm32h747-disco/patches/uboot/uboot.hash | 2 ++ .../stm32h747-disco/post-build.sh | 9 ++++++ .../stm32h747-disco/readme.txt | 32 +++++++++++++++++++ configs/stm32h747_disco_sd_defconfig | 32 +++++++++++++++++++ 10 files changed, 112 insertions(+) create mode 100644 board/stmicroelectronics/stm32h747-disco/extlinux.conf create mode 100755 board/stmicroelectronics/stm32h747-disco/flash_sd.sh create mode 100644 board/stmicroelectronics/stm32h747-disco/genimage.cfg create mode 100644 board/stmicroelectronics/stm32h747-disco/linux-sd.fragment create mode 100644 board/stmicroelectronics/stm32h747-disco/patches/linux/linux.hash create mode 100644 board/stmicroelectronics/stm32h747-disco/patches/uboot/uboot.hash create mode 100755 board/stmicroelectronics/stm32h747-disco/post-build.sh create mode 100644 board/stmicroelectronics/stm32h747-disco/readme.txt create mode 100644 configs/stm32h747_disco_sd_defconfig diff --git a/DEVELOPERS b/DEVELOPERS index 9ed4bdb0a073..08c98ec53bf5 100644 --- a/DEVELOPERS +++ b/DEVELOPERS @@ -800,12 +800,14 @@ N: Dario Binacchi 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/ diff --git a/board/stmicroelectronics/stm32h747-disco/extlinux.conf b/board/stmicroelectronics/stm32h747-disco/extlinux.conf new file mode 100644 index 000000000000..36f60e346b6d --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/extlinux.conf @@ -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 diff --git a/board/stmicroelectronics/stm32h747-disco/flash_sd.sh b/board/stmicroelectronics/stm32h747-disco/flash_sd.sh new file mode 100755 index 000000000000..6f2e421aba39 --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/flash_sd.sh @@ -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 ${OUTPUT_DIR}/images/u-boot.bin 0x08000000" \ + -c "reset run" \ + -c "shutdown" diff --git a/board/stmicroelectronics/stm32h747-disco/genimage.cfg b/board/stmicroelectronics/stm32h747-disco/genimage.cfg new file mode 100644 index 000000000000..e911a94e46b5 --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/genimage.cfg @@ -0,0 +1,10 @@ +image sdcard.img { + hdimage { + } + + partition rootfs { + partition-type = 0x83 + image = "rootfs.ext2" + size = 32M + } +} diff --git a/board/stmicroelectronics/stm32h747-disco/linux-sd.fragment b/board/stmicroelectronics/stm32h747-disco/linux-sd.fragment new file mode 100644 index 000000000000..846229d0d468 --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/linux-sd.fragment @@ -0,0 +1 @@ +# CONFIG_XIP_KERNEL is not set diff --git a/board/stmicroelectronics/stm32h747-disco/patches/linux/linux.hash b/board/stmicroelectronics/stm32h747-disco/patches/linux/linux.hash new file mode 100644 index 000000000000..9f5d285c3569 --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/patches/linux/linux.hash @@ -0,0 +1,2 @@ +# Locally calculated +sha256 189d1f409cef8d0d234210e04595172df392f8cb297e14b447ed95720e2fd940 linux-6.18.5.tar.xz diff --git a/board/stmicroelectronics/stm32h747-disco/patches/uboot/uboot.hash b/board/stmicroelectronics/stm32h747-disco/patches/uboot/uboot.hash new file mode 100644 index 000000000000..b6a925ea4e89 --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/patches/uboot/uboot.hash @@ -0,0 +1,2 @@ +# Locally calculated +sha256 b60d5865cefdbc75da8da4156c56c458e00de75a49b80c1a2e58a96e30ad0d54 u-boot-2026.01.tar.bz2 diff --git a/board/stmicroelectronics/stm32h747-disco/post-build.sh b/board/stmicroelectronics/stm32h747-disco/post-build.sh new file mode 100755 index 000000000000..293bf30cb3ff --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/post-build.sh @@ -0,0 +1,9 @@ +#!/bin/sh +set -eu + +BOARD_DIR="$(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 diff --git a/board/stmicroelectronics/stm32h747-disco/readme.txt b/board/stmicroelectronics/stm32h747-disco/readme.txt new file mode 100644 index 000000000000..5c565de2112a --- /dev/null +++ b/board/stmicroelectronics/stm32h747-disco/readme.txt @@ -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/ + +*** 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. + diff --git a/configs/stm32h747_disco_sd_defconfig b/configs/stm32h747_disco_sd_defconfig new file mode 100644 index 000000000000..92cd23196bea --- /dev/null +++ b/configs/stm32h747_disco_sd_defconfig @@ -0,0 +1,32 @@ +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