Initial commit

target/linux/stm32/image/Makefile

@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2024 Bootlin
+#
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+define Build/boot-img-ext4
+	rm -fR $@.boot
+	mkdir -p $@.boot
+	$(foreach dts,$(DEVICE_DTS), $(CP) $(KDIR)/image-$(dts).dtb $@.boot/$(dts).dtb;)
+	$(CP) $(IMAGE_KERNEL) $@.boot/$(KERNEL_IMG)
+	$(INSTALL_DIR) $@.boot/extlinux
+	$(CP) ./extlinux.conf $@.boot/extlinux/
+	$(SED) 's/@KERNEL@/$(KERNEL_IMG)/' $@.boot/extlinux/extlinux.conf
+	$(SED) 's/@DEVICE@/$(DEVICE_NAME)/' $@.boot/extlinux/extlinux.conf
+	$(SED) 's/@DTS@/$(DEVICE_DTS)/' $@.boot/extlinux/extlinux.conf
+	$(SED) 's/@ROOT@/PARTUUID=$(shell echo $(IMG_PART_DISKGUID) | sed 's/00$$/05/')/' $@.boot/extlinux/extlinux.conf
+
+	make_ext4fs -J -L kernel -l $(CONFIG_TARGET_KERNEL_PARTSIZE)M \
+		$(if $(SOURCE_DATE_EPOCH),-T $(SOURCE_DATE_EPOCH)) \
+		$@.bootimg $@.boot
+endef
+
+define Build/sdcard-img
+	GUID=$(IMG_PART_DISKGUID) ./gen_stm32_sdcard_img.sh \
+	     $@ $(STAGING_DIR_IMAGE)/tf-a-$(DEVICE_NAME).stm32 \
+	     $(STAGING_DIR_IMAGE)/fip-$(DEVICE_NAME).bin $@.bootimg $(IMAGE_ROOTFS) \
+	     $(ENV_SIZE) $(CONFIG_TARGET_KERNEL_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
+endef
+
+define Device/Default
+  PROFILES := Default
+  DEVICE_VENDOR := STMicroelectronics
+  IMAGES := factory.img.gz sysupgrade.img.gz
+  IMAGE/factory.img.gz := boot-img-ext4 | sdcard-img | gzip
+  IMAGE/sysupgrade.img.gz := boot-img-ext4 | sdcard-img | gzip | append-metadata
+  KERNEL := kernel-bin
+  KERNEL_NAME := zImage
+  KERNEL_IMG := zImage
+  DEVICE_DTS_DIR := $(DTS_DIR)/st
+  ENV_SIZE := 0x200000
+  DEVICE_PACKAGES := kmod-brcmfmac \
+		     murata-firmware-43430-sdio \
+		     murata-nvram-43430-sdio \
+		     wpad-basic-mbedtls \
+		     kmod-phy-stm32-usbphyc \
+		     kmod-usb2 \
+		     kmod-usb-storage \
+		     kmod-usb-ledtrig-usbport \
+		     -mtd
+endef
+
+define Device/stm32mp135f-dk
+  DEVICE_MODEL := STM32MP135F-DK
+  DEVICE_DTS := stm32mp135f-dk
+  SUPPORTED_DEVICES := st,stm32mp135f-dk
+endef
+
+TARGET_DEVICES += stm32mp135f-dk
+
+$(eval $(call BuildImage))

target/linux/stm32/image/extlinux.conf

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+label @DEVICE@-openwrt
+  kernel /@KERNEL@
+  devicetree /@DTS@.dtb
+  append root=@ROOT@ rootwait

target/linux/stm32/image/gen_stm32_sdcard_img.sh

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+#!/bin/sh
+# Copyright (C) 2024 Bootlin
+
+set -ex
+[ $# -eq 8 ] || {
+    echo "SYNTAX: $0 <file> <fsbl> <fip> <bootfs image> <rootfs image> <env size> <bootfs size> <rootfs size>"
+    exit 1
+}
+
+OUTPUT="${1}"
+FSBL="${2}"
+FIP="${3}"
+BOOTFS="${4}"
+ROOTFS="${5}"
+ENVSIZE="$((${6} / 1024))"
+BOOTFSSIZE="${7}"
+ROOTFSSIZE="${8}"
+
+set $(ptgen -o "${OUTPUT}" -g -a 4 -l 2048 -G ${GUID} -N fsbla -p 2M -N fip -p 3M -N u-boot-env -p "${ENVSIZE}" -N boot -p${BOOTFSSIZE}M -N rootfs -p ${ROOTFSSIZE}M)
+FSBLAOFFSET="$((${1} / 512))"
+FSBLASIZE="$((${2} / 512))"
+FIPOFFSET="$((${3} / 512))"
+FIPSIZE="$((${4} / 512))"
+ENVOFFSET="$((${5} / 512))"
+ENVSIZE="$((${6} / 512))"
+BOOTFSOFFSET="$((${7} / 512))"
+BOOTFSSIZE="$((${8} / 512))"
+ROOTFSOFFSET="$((${9} / 512))"
+ROOTFSSIZE="$((${10} / 512))"
+
+dd bs=512 if="${FSBL}" of="${OUTPUT}" seek="${FSBLAOFFSET}" conv=notrunc
+dd bs=512 if="${FIP}"  of="${OUTPUT}" seek="${FIPOFFSET}" conv=notrunc
+dd bs=512 if=/dev/zero of="${OUTPUT}" seek="${ENVOFFSET}" count="${ENVSIZE}" conv=notrunc
+dd bs=512 if="${BOOTFS}" of="${OUTPUT}" seek="${BOOTFSOFFSET}" conv=notrunc
+dd bs=512 if="${ROOTFS}" of="${OUTPUT}" seek="${ROOTFSOFFSET}" conv=notrunc