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[lantiq] Support booting the Speedport W502V using BRN-BOOT.

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While the disadvantage is less available flash space, it's easy and
safe to flash without opening the device.
Going back to the original firmware is also possible.

This patch add two firmware utilities, mkbrncmdline and mkbrnboot.

mkbrncmdline patches the uncompressed kernel so the registeres a0 to
a3 are initialized and the memory size is passed in.

mkbrnboot takes the lzma compressed kernel and squashfs images and
creates a firmware image that can be flashed using the BRN-BOOT
recovery kernel, which is booted by holding both buttons when
powering up the device and will listen on http://192.168.2.1.

The firmware file from bin/lantiq/ to use is
openwrt-lantiq-danube-ARV4525PW-BRNDTW502-brnImage

The BRN-BOOT recovery kernel does size-check the image, so if it's
too big to fit into flash it will complain accordingly.

A second patch is needed to make the wired network interface work
since there is no u-boot to pre-initialise it.

Signed-off-by: Tobias Diedrich <ranma+openwrt@tdiedrich.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30532 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
blogic
2012-02-14 17:48:04 +00:00
parent cefea1a955
commit 61b8a7cdc6
6 changed files with 511 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
target/linux/lantiq/image/Makefile
View File

@@ -23,6 +23,12 @@ define PatchKernelLzma
$(call CompressLzma,$(KDIR)/vmlinux-$(1),$(KDIR)/vmlinux-$(1).lzma)
endef
define MkBrnImage
mkbrncmdline -i $(KDIR)/vmlinux-$(4) -o $(KDIR)/vmlinux-$(4)-brn BRN-BOOT $(6)
$(call CompressLzma,$(KDIR)/vmlinux-$(4)-brn,$(KDIR)/vmlinux-$(4)-brn.lzma)
mkbrnimg -s $(1) -m $(2) -o $(3) $(KDIR)/vmlinux-$(4)-brn.lzma $(KDIR)/root.$(5)
endef
define MkImageLzma
mkimage -A mips -O linux -T kernel -a 0x80002000 -C lzma \
-e 0x80002000 -n 'MIPS OpenWrt Linux-$(LINUX_VERSION)' \
@@ -32,6 +38,7 @@ endef
define Image/Build/squashfs
cat $(KDIR)/uImage-$(2) $(KDIR)/root.$(1) > $(BIN_DIR)/$(IMG_PREFIX)-$(2)-$(1).image
$(call prepare_generic_squashfs,$(BIN_DIR)/$(IMG_PREFIX)-$(2)-$(1).image)
$(if $(3),$(call MkBrnImage,$(3),$(4),$(BIN_DIR)/$(IMG_PREFIX)-$(2)-$(3)-brnImage,$(2),$(1),$(5)))
endef
define Image/Build/jffs2-64k
@@ -109,7 +116,7 @@ define Image/BuildKernel/Profile/ARV4525PW
endef
define Image/Build/Profile/ARV4525PW
$(call Image/Build/$(1),$(1),ARV4525PW)
$(call Image/Build/$(1),$(1),ARV4525PW,BRNDTW502,0x12345678,memsize=32)
endef
define Image/BuildKernel/Profile/ARV7525PW