target/linux/brcm63xx/image/Makefile

   1 #
   2 # Copyright (C) 2006 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 include $(TOPDIR)/rules.mk
   8 include $(INCLUDE_DIR)/image.mk
   9
  10 LOADADDR = 0x80010000           # RAM start + 16M
  11 KERNEL_ENTRY = $(LOADADDR)      # Newer kernels add a jmp to the kernel_entry at the start of the binary
  12 RAMSIZE = 0x01000000            # 64MB
  13
  14 LOADER_MAKEOPTS= \
  15                 KDIR=$(KDIR) \
  16                 LOADADDR=$(LOADADDR) \
  17                 KERNEL_ENTRY=$(KERNEL_ENTRY) \
  18                 RAMSIZE=$(RAMSIZE)
  19
  20 define trxalign/jffs2-128k
  21 -a 0x20000
  22 endef
  23 define trxalign/jffs2-64k
  24 -a 0x10000
  25 endef
  26 define trxalign/squashfs
  27 -a 1024
  28 endef
  29
  30 define Image/Build/CFE
  31         # Generate the tagged image
  32         $(STAGING_DIR_HOST)/bin/imagetag -i $(KDIR)/vmlinux.lzma.cfe -f $(KDIR)/root.$(1) \
  33                 -o $(BIN_DIR)/openwrt-$(2)-$(1)-cfe.bin \
  34                 -b $(2) -c $(3) -e $(LOADADDR) -l $(LOADADDR)
  35 #               -b $(2) -c $(3) -e $(KERNEL_ENTRY) -l $(LOADADDR)
  36
  37         $(call prepare_generic_squashfs,$(BIN_DIR)/openwrt-$(2)-$(1)-cfe.bin)
  38 endef
  39
  40 define Build/Clean
  41         $(MAKE) -C lzma-loader clean
  42 endef
  43
  44 define Image/Prepare
  45         # Standard LZMA kernel
  46         cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
  47
  48         # CFE is a LZMA nazi! It took me hours to find out the parameters!
  49         # Also I think lzma has a bug cause it generates different output depending on
  50         # if you use stdin / stdout or not. Use files instead of stdio here, cause
  51         # otherwise CFE will complain and not boot the image.
  52         $(STAGING_DIR_HOST)/bin/lzma e -d22 -fb64 -a1 $(KDIR)/vmlinux $(KDIR)/vmlinux.lzma.tmp
  53
  54         # Strip out the length, CFE doesn't like this
  55         dd if=$(KDIR)/vmlinux.lzma.tmp of=$(KDIR)/vmlinux.lzma.cfe bs=5 count=1
  56         dd if=$(KDIR)/vmlinux.lzma.tmp of=$(KDIR)/vmlinux.lzma.cfe ibs=13 obs=5 skip=1 seek=1 conv=notrunc
  57         rm -f $(KDIR)/vmlinux.lzma.tmp
  58
  59         # Build the LZMA loader
  60         rm -f $(KDIR)/loader.gz
  61         $(MAKE) -C lzma-loader \
  62                 BUILD_DIR="$(KDIR)" \
  63                 TARGET="$(KDIR)" \
  64                 clean install
  65
  66         echo -ne "\\x00" >> $(KDIR)/loader.gz
  67         rm -f $(KDIR)/fs_mark
  68         touch $(KDIR)/fs_mark
  69         $(call prepare_generic_squashfs,$(KDIR)/fs_mark)
  70
  71 endef
  72
  73 define Image/Build
  74         $(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1)) -f $(KDIR)/root.$(1)
  75         $(call Image/Build/CFE,$(1),96345GW2,6345)
  76 endef
  77
  78 $(eval $(call BuildImage))