target/linux/rb532/image/Makefile

   1 #
   2 # Copyright (C) 2006-2010 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 $(INCLUDE_DIR)/image.mk
   9
  10 LOADADDR = 0x81000000           # RAM start + 16M
  11 KERNEL_ENTRY = 0x80101000
  12 RAMSIZE = 0x00100000            # 1MB
  13 IMAGE_COPY = 1
  14
  15 LOADER_MAKEOPTS= \
  16                 CROSS_COMPILE="$(TARGET_CROSS)" \
  17                 PATH="$(TARGET_PATH)" \
  18                 CC="$(TARGET_CC)" \
  19                 KDIR=$(KDIR) \
  20                 LOADADDR=$(LOADADDR) \
  21                 KERNEL_ENTRY=$(KERNEL_ENTRY) \
  22                 RAMSIZE=$(RAMSIZE) \
  23                 IMAGE_COPY=$(IMAGE_COPY)
  24
  25
  26 LOADER_DIR = $(GENERIC_PLATFORM_DIR)/image/lzma-loader
  27
  28 define Build/lzma-loader-elf
  29         rm -rf $@.loader
  30         mkdir -p $@.loader
  31         $(CP) $(LOADER_DIR)/src/* $@.loader/
  32         $(CP) $@ $@.loader/vmlinux.lzma
  33         $(MAKE) -C $@.loader $(LOADER_MAKEOPTS)
  34         cp $@.loader/lzma.elf $@
  35         rm -rf $@.loader
  36 endef
  37
  38 define Device/nand
  39   CMDLINE := ubi.mtd=1 ubi.block=0,rootfs root=/dev/ubiblock0_1
  40   BOARD_NAME := rb532
  41   SUPPORTED_DEVICES := rb532
  42   KERNEL_INITRAMFS := append-kernel | patch-cmdline | lzma | lzma-loader-elf
  43   KERNEL := $$(KERNEL_INITRAMFS) | kernel2minor -s 2048 -i 0 -c
  44   IMAGES := sysupgrade.bin
  45   FILESYSTEMS := squashfs
  46   IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
  47 endef
  48
  49 TARGET_DEVICES := nand
  50
  51 define Build/Clean
  52         $(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader $(LOADER_MAKEOPTS) clean
  53 endef
  54
  55 define Image/Prepare
  56         cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
  57         $(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader $(LOADER_MAKEOPTS) clean compile
  58 ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  59         $(STAGING_DIR_HOST)/bin/patch-cmdline $(KDIR)/vmlinux-initramfs '$(strip $(call Image/cmdline/yaffs2)) '
  60         cat $(KDIR)/vmlinux-initramfs | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
  61         $(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader $(LOADER_MAKEOPTS) clean compile
  62         $(CP) $(KDIR)/loader.elf $(KDIR)/loader-initramfs.elf
  63 endif
  64 endef
  65
  66 VMLINUX:=$(BIN_DIR)/$(IMG_PREFIX)-vmlinux-kernel
  67
  68 define Image/BuildKernel
  69         $(CP) $(KDIR)/loader.elf $(VMLINUX)
  70 ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  71         $(CP) $(KDIR)/loader-initramfs.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux-initramfs
  72 endif
  73 endef
  74
  75 define Image/cmdline/yaffs2
  76 root=/dev/mtdblock1 rootfstype=yaffs2
  77 endef
  78
  79 define Image/Build/squashfs
  80         dd if=/dev/zero bs=128k count=1 >> $(KDIR)/root.squashfs
  81 endef
  82
  83 define Image/Build
  84         $(call Image/Build/$(1),$(1))
  85         $(CP) $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-$(1).kernel
  86         $(STAGING_DIR_HOST)/bin/patch-cmdline $(BIN_DIR)/$(IMG_PREFIX)-$(1).kernel 'root=/dev/sda2 '
  87         ./gen_image.sh $(BIN_DIR)/$(IMG_PREFIX)-combined-$(1).bin \
  88                 6 $(BIN_DIR)/$(IMG_PREFIX)-$(1).kernel \
  89                 $(CONFIG_TARGET_ROOTFS_PARTSIZE) $(KDIR)/root.$(1) \
  90                 128
  91 endef
  92
  93 $(eval $(call BuildImage))