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#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/image.mk
LOADADDR = 0x81000000 # RAM start + 16M
KERNEL_ENTRY = 0x80100000
RAMSIZE = 0x00100000 # 1MB
FLASH_KERNEL := 0xBFD00000
FLASH_FS := 0xBE000000
LOADER_MAKEOPTS= \
KDIR=$(KDIR) \
LOADADDR=$(LOADADDR) \
KERNEL_ENTRY=$(KERNEL_ENTRY) \
RAMSIZE=$(RAMSIZE)
define Build/Clean
$(MAKE) -C ../generic/lzma-loader $(LOADER_MAKEOPTS) clean
endef
DROP_SECTIONS := .reginfo .mdebug .comment .note .pdr .options .MIPS.options
OBJCOPY_KERNEL := $(TARGET_CROSS)objcopy -S -O srec $(addprefix --remove-section=,$(DROP_SECTIONS))
define Image/Prepare
cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
# Build RAM image
$(MAKE) -C ../generic/lzma-loader \
$(LOADER_MAKEOPTS) \
clean compile
$(OBJCOPY_KERNEL) $(KDIR)/loader.elf $(KDIR)/kernel.ram.srec
# Build Flash image
$(MAKE) -C ../generic/lzma-loader \
$(LOADER_MAKEOPTS) \
IMAGE_COPY=1 \
LOADER_ENTRY=$(FLASH_KERNEL) \
LOADER_TYPE=_flash \
clean compile
$(OBJCOPY_KERNEL) $(KDIR)/loader_flash.elf $(KDIR)/kernel.flash.srec
endef
define Image/Build
$(TARGET_CROSS)objcopy -O srec -I binary --adjust-vma $(FLASH_FS) $(KDIR)/root.$(1) $(KDIR)/root.$(1).srec
grep -v S7 $(KDIR)/root.$(1).srec > $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
grep -v S0 $(KDIR)/kernel.flash.srec >> $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).img
endef
$(eval $(call BuildImage))
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