diff mbox series

[v2,2/3] configs/stm32f746_disco_sd: new defconfig

Message ID 20240820191927.2126281-3-dario.binacchi@amarulasolutions.com
State Changes Requested, archived
Headers show
Series tinyinit and stm32f746_disco_sd_defconfig | expand

Commit Message

Dario Binacchi Aug. 20, 2024, 7:19 p.m. UTC
The commit adds support for STM32F746G-DISCO board. The discovery kit is
a complete demonstration and development platform for STMicroelectronics
Arm Cortex-M7-core-based STM32F746NG.

Board support package includes the following components:
- mainline Linux kernel 5.15.165
- mainline U-Boot 2024.07
- default packages from buildroot

Link: https://www.st.com/en/evaluation-tools/32f746gdiscovery.html
Co-Developed-by: Waldemar Brodkorb <wbx@openadk.org>
Tested-by: Waldemar Brodkorb <wbx@openadk.org>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---
Changes v1 -> v2:
 - Move Linux kernel from version 5.15.163 to 5.15.165.
 - Drop busybox-tiny.config and use package/busybox/busybox-minimal.config.
 - Remove the logo management.
 - Add the Tested-by tag.
 - Update the commit message

 DEVELOPERS                                    |  2 ++
 .../stm32f746-disco/extlinux.conf             |  4 +++
 .../stm32f746-disco/flash_sd.sh               | 22 +++++++++++++
 .../stm32f746-disco/genimage.cfg              | 27 ++++++++++++++++
 .../stm32f746-disco/linux.fragment            | 13 ++++++++
 .../patches/linux-headers/linux-headers.hash  |  1 +
 .../stm32f746-disco/patches/linux/linux.hash  |  2 ++
 .../stm32f746-disco/patches/uboot/uboot.hash  |  2 ++
 .../stm32f746-disco/post-build.sh             |  9 ++++++
 .../stm32f746-disco/readme.txt                | 31 +++++++++++++++++++
 configs/stm32f746_disco_sd_defconfig          | 31 +++++++++++++++++++
 11 files changed, 144 insertions(+)
 create mode 100644 board/stmicroelectronics/stm32f746-disco/extlinux.conf
 create mode 100755 board/stmicroelectronics/stm32f746-disco/flash_sd.sh
 create mode 100644 board/stmicroelectronics/stm32f746-disco/genimage.cfg
 create mode 100644 board/stmicroelectronics/stm32f746-disco/linux.fragment
 create mode 120000 board/stmicroelectronics/stm32f746-disco/patches/linux-headers/linux-headers.hash
 create mode 100644 board/stmicroelectronics/stm32f746-disco/patches/linux/linux.hash
 create mode 100644 board/stmicroelectronics/stm32f746-disco/patches/uboot/uboot.hash
 create mode 100755 board/stmicroelectronics/stm32f746-disco/post-build.sh
 create mode 100644 board/stmicroelectronics/stm32f746-disco/readme.txt
 create mode 100644 configs/stm32f746_disco_sd_defconfig
diff mbox series

Patch

diff --git a/DEVELOPERS b/DEVELOPERS
index 45cc1cc48996..e8dc27f7ad47 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -785,10 +785,12 @@  F:	package/xinetd/
 
 N:	Dario Binacchi <dario.binacchi@amarulasolutions.com>
 F:	board/bsh/
+F:	board/stmicroelectronics/stm32f746-disco/
 F:	board/stmicroelectronics/stm32f769-disco/
 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:	package/sscep/
 F:	package/tinyinit/
diff --git a/board/stmicroelectronics/stm32f746-disco/extlinux.conf b/board/stmicroelectronics/stm32f746-disco/extlinux.conf
new file mode 100644
index 000000000000..bb79c0b412a2
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/extlinux.conf
@@ -0,0 +1,4 @@ 
+label stm32f746-disco-buildroot
+  kernel /zImage
+  devicetree /stm32f746-disco.dtb
+  append console=ttySTM0,115200 root=/dev/mmcblk0p2 rw rootwait consoleblank=0 ignore_loglevel
diff --git a/board/stmicroelectronics/stm32f746-disco/flash_sd.sh b/board/stmicroelectronics/stm32f746-disco/flash_sd.sh
new file mode 100755
index 000000000000..4fe85448f984
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/flash_sd.sh
@@ -0,0 +1,22 @@ 
+#!/bin/bash
+
+if [ $# -eq 0 ]; then
+    OUTPUT_DIR=output
+else
+    OUTPUT_DIR=$1
+fi
+
+if ! test -d "${OUTPUT_DIR}" ; then
+    echo "ERROR: no output directory specified."
+    echo "Usage: $0 OUTPUT_DIR"
+    exit 1
+fi
+
+"${OUTPUT_DIR}"/host/bin/openocd -f board/stm32f746g-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/stm32f746-disco/genimage.cfg b/board/stmicroelectronics/stm32f746-disco/genimage.cfg
new file mode 100644
index 000000000000..6743d41972c0
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/genimage.cfg
@@ -0,0 +1,27 @@ 
+image boot.vfat {
+	vfat {
+		files = {
+			"zImage",
+			"stm32f746-disco.dtb",
+			"extlinux"
+		}
+	}
+
+	size = 16M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition u-boot {
+		partition-type = 0xC
+		image = "boot.vfat"
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext2"
+		size = 32M
+	}
+}
diff --git a/board/stmicroelectronics/stm32f746-disco/linux.fragment b/board/stmicroelectronics/stm32f746-disco/linux.fragment
new file mode 100644
index 000000000000..625fdced9e8d
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/linux.fragment
@@ -0,0 +1,13 @@ 
+# CONFIG_PREEMPT is not set
+# CONFIG_MULTIUSER is not set
+# CONFIG_TIMERFD is not set
+CONFIG_SET_MEM_PARAM=y
+CONFIG_DRAM_BASE=0xC0000000
+CONFIG_DRAM_SIZE=0x01000000
+# CONFIG_GCC_PLUGINS is not set
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_BLK_DEV is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_PROC_SYSCTL is not set
+# CONFIG_CRYPTO is not set
+CONFIG_RCU_TRACE=y
\ No newline at end of file
diff --git a/board/stmicroelectronics/stm32f746-disco/patches/linux-headers/linux-headers.hash b/board/stmicroelectronics/stm32f746-disco/patches/linux-headers/linux-headers.hash
new file mode 120000
index 000000000000..5808d92afe89
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/patches/linux-headers/linux-headers.hash
@@ -0,0 +1 @@ 
+../linux/linux.hash
\ No newline at end of file
diff --git a/board/stmicroelectronics/stm32f746-disco/patches/linux/linux.hash b/board/stmicroelectronics/stm32f746-disco/patches/linux/linux.hash
new file mode 100644
index 000000000000..7f78b950f35c
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/patches/linux/linux.hash
@@ -0,0 +1,2 @@ 
+# Locally calculated
+sha256  a36dd3e82ceb634afded31f2656568f57c4d9c4b399859f298b18116df11c6fe  linux-5.15.165.tar.xz
diff --git a/board/stmicroelectronics/stm32f746-disco/patches/uboot/uboot.hash b/board/stmicroelectronics/stm32f746-disco/patches/uboot/uboot.hash
new file mode 100644
index 000000000000..fe9b4f53dc63
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/patches/uboot/uboot.hash
@@ -0,0 +1,2 @@ 
+# Locally calculated
+sha256  f591da9ab90ef3d6b3d173766d0ddff90c4ed7330680897486117df390d83c8f  u-boot-2024.07.tar.bz2
diff --git a/board/stmicroelectronics/stm32f746-disco/post-build.sh b/board/stmicroelectronics/stm32f746-disco/post-build.sh
new file mode 100755
index 000000000000..2894ad851c66
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/post-build.sh
@@ -0,0 +1,9 @@ 
+#!/bin/sh
+BOARD_DIR="$(dirname "$0")"
+
+install -m 0644 -D "${BOARD_DIR}"/extlinux.conf "${BINARIES_DIR}"/extlinux/extlinux.conf
+
+# finalize the init script
+INIT_PATH="${TARGET_DIR}/sbin/init"
+sed -i "/^# Clear memory to reduce page fragmentation/d" "${INIT_PATH}"
+sed -i "/^echo 3 > \/proc\/sys\/vm\/drop_caches/d" "${INIT_PATH}"
diff --git a/board/stmicroelectronics/stm32f746-disco/readme.txt b/board/stmicroelectronics/stm32f746-disco/readme.txt
new file mode 100644
index 000000000000..4ac16da33132
--- /dev/null
+++ b/board/stmicroelectronics/stm32f746-disco/readme.txt
@@ -0,0 +1,31 @@ 
+STM32F746-DISCO
+===================
+
+This tutorial describes how to use the predefined Buildroot
+configuration for the STM32F746-DISCO evaluation platform.
+
+Building
+--------
+
+  make stm32f746_disco_sd_defconfig
+  make
+
+Flashing
+--------
+
+  ./board/stmicroelectronics/stm32f746-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/stm32f746-disco/genimage.cfg.
diff --git a/configs/stm32f746_disco_sd_defconfig b/configs/stm32f746_disco_sd_defconfig
new file mode 100644
index 000000000000..870dde318324
--- /dev/null
+++ b/configs/stm32f746_disco_sd_defconfig
@@ -0,0 +1,31 @@ 
+BR2_arm=y
+BR2_cortex_m7=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_15=y
+BR2_GLOBAL_PATCH_DIR="board/stmicroelectronics/stm32f746-disco/patches"
+BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
+BR2_INIT_TINYINIT=y
+BR2_ROOTFS_POST_BUILD_SCRIPT="board/stmicroelectronics/stm32f746-disco/post-build.sh"
+BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/stmicroelectronics/stm32f746-disco/genimage.cfg"
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.15.165"
+BR2_LINUX_KERNEL_DEFCONFIG="stm32"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/stmicroelectronics/stm32f746-disco/linux.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="stm32f746-disco"
+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="2024.07"
+BR2_TARGET_UBOOT_BOARD_DEFCONFIG="stm32f746-disco"
+BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
+BR2_PACKAGE_HOST_DOSFSTOOLS=y
+BR2_PACKAGE_HOST_GENIMAGE=y
+BR2_PACKAGE_HOST_MTOOLS=y
+BR2_PACKAGE_HOST_OPENOCD=y