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openwrt/target/linux/brcm63xx/image/Makefile
Álvaro Fernández Rojas 13253fbcbd brcm63xx: add sysupgrade images 
Some devices require padded images in order to prevent CFE from flashing them
to the wrong offset.
For small flashes (4/8) this is no big deal, but for larger flashes (16/32) this
implies 8 and 16 MB images, which is way too large and some devices aren't
capable of flashing them through sysupgrade.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2016-06-21 16:42:44 +02:00

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Makefile
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#
# Copyright (C) 2006-2015 OpenWrt.org
# Copyright (C) 2016 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
LOADADDR = 0x80010000 # RAM start + 64K
KERNEL_ENTRY = $(LOADADDR) # Newer kernels add a jmp to the kernel_entry at the start of the binary
LOADER_ENTRY = 0x80a00000 # RAM start + 10M, for relocate
RAMSIZE = 0x02000000 # 32MB
LZMA_TEXT_START = 0x81800000 # 32MB - 8MB
LOADER_MAKEOPTS= \
KDIR=$(KDIR) \
LOADADDR=$(LOADADDR) \
KERNEL_ENTRY=$(KERNEL_ENTRY) \
RAMSIZE=$(RAMSIZE) \
LZMA_TEXT_START=$(LZMA_TEXT_START) \
RELOCATE_MAKEOPTS= \
CACHELINE_SIZE=16 \
KERNEL_ADDR=$(KERNEL_ENTRY) \
CROSS_COMPILE=$(TARGET_CROSS) \
LZMA_TEXT_START=$(LOADER_ENTRY)
define Build/Compile
rm -rf $(KDIR)/relocate
$(CP) ../../generic/image/relocate $(KDIR)
$(MAKE) -C $(KDIR)/relocate $(RELOCATE_MAKEOPTS)
endef
### Kernel scripts ###
define Build/append-dtb
$(call Image/BuildDTB,../dts/$(DEVICE_DTS).dts,$@.dtb)
cat $@.dtb >> $@
endef
define Build/hcs-initramfs
$(STAGING_DIR_HOST)/bin/hcsmakeimage --magic_bytes=$(HCS_MAGIC_BYTES) \
--rev_maj=$(HCS_REV_MAJ) --rev_min=$(HCS_REV_MIN) --input_file=$@ \
--output_file=$@.hcs --ldaddress=$(LOADADDR)
mv $@.hcs $@
endef
define Build/loader-lzma
rm -rf $@.src
$(MAKE) -C lzma-loader \
$(LOADER_MAKEOPTS) \
PKG_BUILD_DIR="$@.src" \
TARGET_DIR="$(dir $@)" \
LOADER_DATA="$@" \
LOADER_NAME="$(notdir $@)" \
compile loader.$(1)
mv "$@.$(1)" "$@"
rm -rf $@.src
endef
define Build/lzma
# CFE is a LZMA nazi! It took me hours to find out the parameters!
# Also I think lzma has a bug cause it generates different output depending on
# if you use stdin / stdout or not. Use files instead of stdio here, cause
# otherwise CFE will complain and not boot the image.
$(STAGING_DIR_HOST)/bin/lzma e $@ -d22 -fb64 -a1 $@.lzma
mv $@.lzma $@
endef
define Build/lzma-cfe
# Strip out the length, CFE doesn't like this
dd if=$@ of=$@.lzma.cfe bs=5 count=1
dd if=$@ of=$@.lzma.cfe ibs=13 obs=5 skip=1 seek=1 conv=notrunc
mv $@.lzma.cfe $@
endef
define Build/relocate-kernel
# CFE only allows ~4 MiB for the uncompressed kernels, but uncompressed
# kernel might get larger than that, so let CFE unpack and load at a
# higher address and make the kernel relocate itself to the expected
# location.
( \
dd if=$(KDIR)/relocate/loader.bin bs=32 conv=sync && \
perl -e '@s = stat("$@"); print pack("N", @s[7])' && \
cat $@ \
) > $@.relocate
mv $@.relocate $@
endef
### Image scripts ###
define rootfspad/jffs2-128k
--align-rootfs
endef
define rootfspad/jffs2-64k
--align-rootfs
endef
define rootfspad/squashfs
endef
define Image/LimitName16
$(shell expr substr "$(1)" 1 16)
endef
define Image/FileSystemStrip
$(subst root.,,$(notdir $(1)))
endef
define Build/cfe-bin
$(STAGING_DIR_HOST)/bin/imagetag -i $(word 1,$^) -f $(word 2,$^) \
--output $@ --boardid $(CFE_BOARD_ID) --chipid $(CFE_CHIP_ID) \
--entry $(LOADER_ENTRY) --load-addr $(LOADER_ENTRY) \
--info1 "$(call Image/LimitName16,$(DEVICE_NAME))" \
--info2 "$(call Image/FileSystemStrip,$(word 2,$^))" \
$(call rootfspad/$(call Image/FileSystemStrip,$(word 2,$^))) \
$(CFE_EXTRAS) $(1)
endef
define Build/cfe-old-bin
$(TOPDIR)/scripts/brcmImage.pl -t -p \
-o $@ -b $(CFE_BOARD_ID) -c $(CFE_CHIP_ID) \
-e $(LOADER_ENTRY) -a $(LOADER_ENTRY) \
-k $(word 1,$^) -r $(word 2,$^) \
$(CFE_EXTRAS)
endef
define Build/cfe-spw303v-bin
$(STAGING_DIR_HOST)/bin/imagetag -i $(word 1,$^) -f $(word 2,$^) \
--output $@ --boardid $(CFE_BOARD_ID) --chipid $(CFE_CHIP_ID) \
--entry $(LOADER_ENTRY) --load-addr $(LOADER_ENTRY) \
$(call rootfspad/$(call Image/FileSystemStrip,$(word 2,$^))) \
$(CFE_EXTRAS) $(1)
endef
define Build/spw303v-bin
$(STAGING_DIR_HOST)/bin/spw303v -i $@ -o $@.spw303v
mv $@.spw303v $@
endef
define Build/xor-image
$(STAGING_DIR_HOST)/bin/xorimage -i $@ -o $@.xor
mv $@.xor $@
endef
define Build/zyxel-bin
$(STAGING_DIR_HOST)/bin/zyxbcm -i $@ -o $@.zyxel
mv $@.zyxel $@
endef
define Build/redboot-bin
# Prepare kernel and rootfs
dd if=$(word 1,$^) of=$(BIN_DIR)/$(REDBOOT_PREFIX)-vmlinux.gz bs=65536 conv=sync
dd if=$(word 2,$^) of=$(BIN_DIR)/$(REDBOOT_PREFIX)-$(notdir $(word 2,$^)) bs=64k conv=sync
echo -ne \\xDE\\xAD\\xC0\\xDE >> $(BIN_DIR)/$(REDBOOT_PREFIX)-$(notdir $(word 2,$^))
# Generate the scripted image
$(TOPDIR)/scripts/redboot-script.pl \
-k $(BIN_DIR)/$(REDBOOT_PREFIX)-vmlinux.gz \
-r $(BIN_DIR)/$(REDBOOT_PREFIX)-$(notdir $(word 2,$^)) \
-a $(strip $(LOADADDR)) -f 0xbe430000 -l 0x7c0000 \
-s 0x1000 -t 20 -o $@.redbootscript
dd if="$@.redbootscript" of="$@.redbootscript.padded" bs=4096 conv=sync
cat \
"$@.redbootscript.padded" \
"$(BIN_DIR)/$(REDBOOT_PREFIX)-vmlinux.gz" \
"$(BIN_DIR)/$(REDBOOT_PREFIX)-$(notdir $(word 2,$^))" \
> "$@"
endef
define Device/Default
PROFILES = Default $$(DEVICE_NAME)
KERNEL_DEPENDS = $$(wildcard ../dts/$$(DEVICE_DTS).dts)
KERNEL_INITRAMFS_SUFFIX := .elf
DEVICE_DTS :=
endef
DEVICE_VARS += DEVICE_DTS
ATH5K_PACKAGES := kmod-ath5k wpad-mini
ATH9K_PACKAGES := kmod-ath9k wpad-mini
B43_PACKAGES := kmod-b43 wpad-mini
BRCMWL_PACKAGES := kmod-brcm-wl nas wlc
RT28_PACKAGES := kmod-rt2800-pci wpad-mini
RT61_PACKAGES := kmod-rt61-pci wpad-mini
USB1_PACKAGES := kmod-usb-ohci kmod-ledtrig-usbdev
USB2_PACKAGES := kmod-usb2 kmod-usb-ohci kmod-ledtrig-usbdev
include bcm63xx.mk
$(eval $(call BuildImage))
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