5 files changed, 212 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/image/Makefile b/target/linux/bcm27xx/image/Makefile
new file mode 100644
index 0000000000..421a89263d
--- /dev/null
+++ b/target/linux/bcm27xx/image/Makefile
@@ -0,0 +1,154 @@
+# 
+# Copyright (C) 2012-2019 OpenWrt.org
+# Copyright (C) 2016-2017 LEDE project
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+FAT32_BLOCK_SIZE=1024
+FAT32_BLOCKS=$(shell echo $$(($(CONFIG_TARGET_KERNEL_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE))))
+
+define Build/Compile
+	$(CP) $(LINUX_DIR)/COPYING $(KDIR)/COPYING.linux
+endef
+
+### Image scripts ###
+define Build/boot-common
+	rm -f $@.boot
+	mkfs.fat -C $@.boot $(FAT32_BLOCKS)
+	mcopy -i $@.boot $(KDIR)/COPYING.linux ::
+	mcopy -i $@.boot $(KDIR)/LICENCE.broadcom ::
+	mcopy -i $@.boot cmdline.txt ::
+	mcopy -i $@.boot config.txt ::
+	mcopy -i $@.boot distroconfig.txt ::
+	mcopy -i $@.boot $(IMAGE_KERNEL) ::$(KERNEL_IMG)
+	$(foreach dts,$(shell echo $(DEVICE_DTS)),mcopy -i $@.boot $(DTS_DIR)/$(dts).dtb ::;)
+	mmd -i $@.boot ::/overlays
+	mcopy -i $@.boot $(DTS_DIR)/overlays/*.dtbo ::/overlays/
+	mcopy -i $@.boot $(DTS_DIR)/overlays/README ::/overlays/
+endef
+
+define Build/boot-2708
+	mcopy -i $@.boot $(KDIR)/bootcode.bin ::
+	mcopy -i $@.boot $(KDIR)/start.elf ::
+	mcopy -i $@.boot $(KDIR)/start_cd.elf ::
+	mcopy -i $@.boot $(KDIR)/start_x.elf ::
+	mcopy -i $@.boot $(KDIR)/fixup.dat ::
+	mcopy -i $@.boot $(KDIR)/fixup_cd.dat ::
+	mcopy -i $@.boot $(KDIR)/fixup_x.dat ::
+endef
+
+define Build/boot-2711
+	mcopy -i $@.boot $(KDIR)/start4.elf ::
+	mcopy -i $@.boot $(KDIR)/start4cd.elf ::
+	mcopy -i $@.boot $(KDIR)/start4x.elf ::
+	mcopy -i $@.boot $(KDIR)/fixup4.dat ::
+	mcopy -i $@.boot $(KDIR)/fixup4cd.dat ::
+	mcopy -i $@.boot $(KDIR)/fixup4x.dat ::
+endef
+
+define Build/sdcard-img
+	./gen_rpi_sdcard_img.sh $@ $@.boot $(IMAGE_ROOTFS) \
+		$(CONFIG_TARGET_KERNEL_PARTSIZE) $(CONFIG_TARGET_ROOTFS_PARTSIZE)
+endef
+
+### Devices ###
+define Device/Default
+  DEVICE_VENDOR := Raspberry Pi
+  KERNEL := kernel-bin
+  KERNEL_IMG := kernel.img
+  IMAGES := factory.img.gz sysupgrade.img.gz
+  IMAGE/sysupgrade.img.gz := boot-common | boot-2708 | sdcard-img | gzip | append-metadata
+  IMAGE/factory.img.gz := boot-common | boot-2708 | sdcard-img | gzip
+endef
+
+define Device/rpi
+  DEVICE_MODEL := B/B+/CM/Zero/ZeroW
+  DEVICE_DTS := \
+	bcm2708-rpi-b bcm2708-rpi-b-plus \
+	bcm2708-rpi-cm \
+	bcm2708-rpi-zero bcm2708-rpi-zero-w
+  SUPPORTED_DEVICES := \
+	rpi-b rpi-b-plus rpi-cm rpi-zero rpi-zero-w \
+	raspberrypi,model-b raspberrypi,model-b-plus raspberrypi,model-b-rev2 \
+	raspberrypi,compute-module raspberrypi,compute-module-1 \
+	raspberrypi,model-zero raspberrypi,model-zero-w
+  DEVICE_PACKAGES := \
+	cypress-firmware-43430-sdio \
+	cypress-nvram-43430-sdio-rpi-zero-w \
+	kmod-brcmfmac wpad-basic
+endef
+ifeq ($(SUBTARGET),bcm2708)
+  TARGET_DEVICES += rpi
+endif
+
+define Device/rpi-2
+  DEVICE_MODEL := 2B/3B/3B+/3CM/4B
+  DEVICE_DTS := \
+	bcm2709-rpi-2-b bcm2710-rpi-2-b \
+	bcm2710-rpi-3-b bcm2710-rpi-3-b-plus \
+	bcm2711-rpi-4-b \
+	bcm2710-rpi-cm3
+  SUPPORTED_DEVICES := \
+	rpi-2-b rpi-3-b rpi-3-b-plus rpi-cm \
+	raspberrypi,2-model-b raspberrypi,2-model-b-rev2 \
+	raspberrypi,3-model-b raspberrypi,3-model-b-plus \
+	raspberrypi,3-compute-module raspberrypi,compute-module-3 \
+	raspberrypi,4-model-b
+  DEVICE_PACKAGES := \
+	cypress-firmware-43430-sdio \
+	cypress-nvram-43430-sdio-rpi-3b \
+	cypress-firmware-43455-sdio \
+	cypress-nvram-43455-sdio-rpi-3b-plus cypress-nvram-43455-sdio-rpi-4b \
+	kmod-brcmfmac wpad-basic
+  IMAGE/sysupgrade.img.gz := boot-common | boot-2708 | boot-2711 | sdcard-img | gzip | append-metadata
+  IMAGE/factory.img.gz := boot-common | boot-2708 | boot-2711 | sdcard-img | gzip
+endef
+ifeq ($(SUBTARGET),bcm2709)
+  TARGET_DEVICES += rpi-2
+endif
+
+define Device/rpi-3
+  DEVICE_MODEL := 2B-1.2/3B/3B+/3CM
+  KERNEL_IMG := kernel8.img
+  DEVICE_DTS := \
+	broadcom/bcm2710-rpi-2-b \
+	broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus \
+	broadcom/bcm2710-rpi-cm3
+  SUPPORTED_DEVICES := \
+	rpi-3-b rpi-3-b-plus \
+	raspberrypi,2-model-b-rev2 \
+	raspberrypi,3-model-b raspberrypi,3-model-b-plus \
+	raspberrypi,3-compute-module raspberrypi,compute-module-3
+  DEVICE_PACKAGES := \
+	cypress-firmware-43430-sdio \
+	cypress-nvram-43430-sdio-rpi-3b \
+	cypress-firmware-43455-sdio \
+	cypress-nvram-43455-sdio-rpi-3b-plus \
+	kmod-brcmfmac wpad-basic
+endef
+ifeq ($(SUBTARGET),bcm2710)
+  TARGET_DEVICES += rpi-3
+endif
+
+define Device/rpi-4
+  DEVICE_MODEL := 4B
+  KERNEL_IMG := kernel8.img
+  DEVICE_DTS := broadcom/bcm2711-rpi-4-b
+  SUPPORTED_DEVICES := \
+	raspberrypi,4-model-b
+  DEVICE_PACKAGES := \
+	cypress-firmware-43455-sdio \
+	cypress-nvram-43455-sdio-rpi-4b \
+	kmod-brcmfmac wpad-basic
+  IMAGE/sysupgrade.img.gz := boot-common | boot-2711 | sdcard-img | gzip | append-metadata
+  IMAGE/factory.img.gz := boot-common | boot-2711 | sdcard-img | gzip
+endef
+ifeq ($(SUBTARGET),bcm2711)
+  TARGET_DEVICES += rpi-4
+endif
+
+$(eval $(call BuildImage))
diff --git a/target/linux/bcm27xx/image/cmdline.txt b/target/linux/bcm27xx/image/cmdline.txt
new file mode 100644
index 0000000000..d9b7d867a7
--- /dev/null
+++ b/target/linux/bcm27xx/image/cmdline.txt
@@ -0,0 +1 @@
+console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=squashfs,ext4 rootwait
diff --git a/target/linux/bcm27xx/image/config.txt b/target/linux/bcm27xx/image/config.txt
new file mode 100644
index 0000000000..f8ca1bf2d4
--- /dev/null
+++ b/target/linux/bcm27xx/image/config.txt
@@ -0,0 +1,14 @@
+################################################################################
+# Bootloader configuration - config.txt
+################################################################################
+
+################################################################################
+# For overclocking and various other settings, see:
+# https://www.raspberrypi.org/documentation/configuration/config-txt/README.md
+################################################################################
+
+# OpenWrt config
+include distroconfig.txt
+
+[all]
+# Place your custom settings here.
diff --git a/target/linux/bcm27xx/image/distroconfig.txt b/target/linux/bcm27xx/image/distroconfig.txt
new file mode 100644
index 0000000000..54cf44346f
--- /dev/null
+++ b/target/linux/bcm27xx/image/distroconfig.txt
@@ -0,0 +1,14 @@
+################################################################################
+# Bootloader configuration - distroconfig.txt
+################################################################################
+
+# Restore PL011 (ttyAMA0) to GPIOs 14 & 15, instead of Mini UART (ttyS0).
+# Mini UART is disabled by default unless "enable_uart=1" is specified,
+#  which changes the core frequency to a fixed value and impacts performance.
+# See https://www.raspberrypi.org/documentation/configuration/uart.md
+[pi0w]
+dtoverlay=disable-bt
+[pi3]
+dtoverlay=disable-bt
+[pi4]
+dtoverlay=disable-bt
diff --git a/target/linux/bcm27xx/image/gen_rpi_sdcard_img.sh b/target/linux/bcm27xx/image/gen_rpi_sdcard_img.sh
new file mode 100755
index 0000000000..5e8fb2769c
--- /dev/null
+++ b/target/linux/bcm27xx/image/gen_rpi_sdcard_img.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+set -x
+[ $# -eq 5 ] || {
+    echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
+    exit 1
+}
+
+OUTPUT="$1"
+BOOTFS="$2"
+ROOTFS="$3"
+BOOTFSSIZE="$4"
+ROOTFSSIZE="$5"
+
+head=4
+sect=63
+
+set $(ptgen -o $OUTPUT -h $head -s $sect -l 4096 -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M)
+
+BOOTOFFSET="$(($1 / 512))"
+BOOTSIZE="$(($2 / 512))"
+ROOTFSOFFSET="$(($3 / 512))"
+ROOTFSSIZE="$(($4 / 512))"
+
+dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
+dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc
+
+
+