openwrt/target/linux/bcm4908/image/Makefile
Rafał Miłecki d92a9c97bf bcm4908: enable Netgear R8000P bootloader image
This enables building BCM4908 "raw" image that can be flashed using
bootloader web UI. It requires serial console access & stopping booting
by the "Press any key to stop auto run".

It's easy to build vendor like CHK image but it can't be safely flashed
using vendor UI at this point. Netgear implements method called "NAND
incremental flashing" that doesn't seem to flash bootfs partition as
provided.

Above method seems to update vmlinux.lz without updating 94908.dtb. It
prevents OpenWrt kernel from booting due to incomplete DTB file. Full
Netgear R8000P support can be enabled after finding a way to make vendor
firmware flash OpenWrt firmware including the 94908.dtb update.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2021-04-08 10:50:59 +02:00

90 lines
2.5 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0-only
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
DEVICE_VARS += ASUS_PRODUCTID ASUS_BUILD_NO ASUS_FW_REV ASUS_EXT_NO
DEVICE_VARS += NETGEAR_BOARD_ID NETGEAR_REGION
define Build/bcm4908asus
$(STAGING_DIR_HOST)/bin/bcm4908asus create -i $@ \
-p $(ASUS_PRODUCTID) -b $(ASUS_BUILD_NO) -f $(ASUS_FW_REV) \
-e $(ASUS_EXT_NO)
endef
define Build/bcm4908img
rm -fr $@-bootfs
mkdir -p $@-bootfs
cp -r $(DEVICE_NAME)/* $@-bootfs/
touch $@-bootfs/1-openwrt
cp $(DTS_DIR)/$(firstword $(DEVICE_DTS)).dtb $@-bootfs/94908.dtb
cp $(KDIR)/bcm63xx-cfe/$(subst _,$(comma),$(DEVICE_NAME))/cferam.000 $@-bootfs/
cp $(IMAGE_KERNEL) $@-bootfs/vmlinux.lz
$(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad=0x800000 --little-endian --squash-uids \
-v -e 128KiB -o $@-bootfs.jffs2 -d $@-bootfs -m none -n
$(STAGING_DIR_HOST)/bin/bcm4908img create $@.new -f $@-bootfs.jffs2 \
-a 0x20000 -f $@
mv $@.new $@
endef
define Build/bcm4908kernel
$(STAGING_DIR_HOST)/bin/bcm4908kernel -i $@ -o $@.new
mv $@.new $@
endef
define Build/bcm4908lzma
$(STAGING_DIR_HOST)/bin/lzma e -lc1 -lp2 -pb2 -d22 $@ $@.new
mv $@.new $@
endef
define Device/Default
KERNEL := kernel-bin | bcm4908lzma | bcm4908kernel
KERNEL_DEPENDS = $$(wildcard $(DTS_DIR)/$$(DEVICE_DTS).dts)
KERNEL_INITRAMFS_SUFFIX := .bin
KERNEL_INITRAMFS := kernel-bin | bcm4908lzma | bcm4908kernel
FILESYSTEMS := squashfs
KERNEL_NAME := Image
DEVICE_IMG_NAME = $$(DEVICE_IMG_PREFIX)-$$(1).$$(2)
BLOCKSIZE := 128k
PAGESIZE := 2048
IMAGE/bin := append-ubi | bcm4908img
endef
define Device/asus_gt-ac5300
DEVICE_VENDOR := Asus
DEVICE_MODEL := GT-AC5300
DEVICE_DTS := broadcom/bcm4908/bcm4908-asus-gt-ac5300
IMAGES := bin
IMAGE/bin := append-ubi | bcm4908img | bcm4908asus
ASUS_PRODUCTID := GT-AC5300
ASUS_BUILD_NO := 384
ASUS_FW_REV := 3.0.0.4
ASUS_EXT_NO := 21140
endef
TARGET_DEVICES += asus_gt-ac5300
define Device/netgear_r8000p
DEVICE_VENDOR := Netgear
DEVICE_MODEL := R8000P
DEVICE_DTS := broadcom/bcm4908/bcm4906-netgear-r8000p
IMAGES := bin
IMAGE/chk := append-ubi | bcm4908img | netgear-chk
NETGEAR_BOARD_ID := U12H359T00_NETGEAR
NETGEAR_REGION := 1
endef
TARGET_DEVICES += netgear_r8000p
define Device/tplink_archer-c2300-v1
DEVICE_VENDOR := TP-Link
DEVICE_MODEL := Archer C2300
DEVICE_VARIANT := v1
DEVICE_DTS := broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1
IMAGES := bin
IMAGE/bin := append-ubi | bcm4908img
BROKEN := y
endef
TARGET_DEVICES += tplink_archer-c2300-v1
$(eval $(call BuildImage))