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 0xbe000000 $(KDIR)/root.$(1) $(KDIR)/root.$(1).srec
+ $(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 $(LINUX_DIR)/arch/mips/boot/compressed/images/zImage.flash.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))
PKG_NAME := loader
PKG_VERSION := 0.05
-PKG_BUILD_DIR := $(KDIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_BUILD_DIR := $(KDIR)/$(PKG_NAME)-$(PKG_VERSION)$(LOADER_TYPE)
$(PKG_BUILD_DIR)/.prepared:
mkdir $(PKG_BUILD_DIR)
$(PKG_BUILD_DIR)/vmlinux.lzma: $(KDIR)/vmlinux.lzma
$(CP) $< $@
-$(KDIR)/loader.elf: $(PKG_BUILD_DIR)/lzma.elf
+$(KDIR)/loader$(LOADER_TYPE).elf: $(PKG_BUILD_DIR)/lzma.elf
$(CP) $< $@
download:
prepare: $(PKG_BUILD_DIR)/.prepared
-compile: $(KDIR)/loader.elf
+compile: $(KDIR)/loader$(LOADER_TYPE).elf
install:
clean:
$(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
ifeq ($(IMAGE_COPY),1)
+LOADER_ENTRY ?= $(KERNEL_ENTRY)
lzma.o: decompress.o LzmaDecode.o kernel.o
sed -e 's,@LOADADDR@,$(LOADADDR),g' -e 's,@ENTRY@,entry,g' lzma.lds.in >lzma-stage2.lds
$(LD) -static --no-warn-mismatch -e entry -Tlzma-stage2.lds -o temp-$@ $^
$(LD) -no-warn-mismatch -T lzma-data.lds -r -o $@ -b binary lzma.tmp --oformat $(O_FORMAT)
lzma.elf: start.o lzma.o
- sed -e 's,@LOADADDR@,$(KERNEL_ENTRY),g' lzma-copy.lds.in >lzma-copy.lds
+ sed -e 's,@LOADADDR@,$(LOADER_ENTRY),g' lzma-copy.lds.in >lzma-copy.lds
$(LD) -s -Tlzma-copy.lds -o $@ $^
else
lzma.elf: start.o decompress.o LzmaDecode.o kernel.o