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|
#############################################################
#
# U-Boot
#
#############################################################
U_BOOT_VERSION:=$(call qstrip,$(BR2_UBOOT_VERSION))
U_BOOT_BOARD_NAME:=$(call qstrip,$(BR2_TARGET_UBOOT_BOARDNAME))
# U-Boot may not be selected in the configuration, but mkimage might
# be needed to build/prepare a kernel image. In this case, we just
# pick some random stable U-Boot version that will be used just to
# build mkimage.
ifeq ($(U_BOOT_VERSION),)
U_BOOT_VERSION=2010.03
endif
U_BOOT_SOURCE:=u-boot-$(U_BOOT_VERSION).tar.bz2
U_BOOT_SITE:=ftp://ftp.denx.de/pub/u-boot
U_BOOT_DIR:=$(BUILD_DIR)/u-boot-$(U_BOOT_VERSION)
U_BOOT_CAT:=$(BZCAT)
U_BOOT_BIN:=u-boot.bin
U_BOOT_TOOLS:=$(HOST_DIR)/usr/bin/mkimage
MKIMAGE:=$(U_BOOT_TOOLS)
U_BOOT_AUTOSCRIPT=$(BINARIES_DIR)/autoscript
U_BOOT_TARGETS:=$(BINARIES_DIR)/$(U_BOOT_BIN) $(U_BOOT_TOOLS)
ifeq ($(call qstrip,$(BR2_TARGET_UBOOT_DEFAULT_ENV)),y)
U_BOOT_TARGETS += u-boot-autoscript
endif
TARGET_UBOOT_IPADDR:=$(call qstrip,$(BR2_TARGET_UBOOT_IPADDR))
TARGET_UBOOT_SERVERIP:=$(call qstrip,$(BR2_TARGET_UBOOT_SERVERIP))
TARGET_UBOOT_GATEWAY:=$(call qstrip,$(BR2_TARGET_UBOOT_GATEWAY))
TARGET_UBOOT_NETMASK:=$(call qstrip,$(BR2_TARGET_UBOOT_NETMASK))
TARGET_UBOOT_ETHADDR:=$(call qstrip,$(BR2_TARGET_UBOOT_ETHADDR))
# u-boot still uses arch=ppc for powerpc
U_BOOT_ARCH=$(KERNEL_ARCH:powerpc=ppc)
U_BOOT_INC_CONF_FILE:=$(U_BOOT_DIR)/include/config.h
U_BOOT_TARGET_TOOLS:=
ifeq ($(BR2_TARGET_UBOOT_TOOL_MKIMAGE),y)
U_BOOT_TARGETS+=$(TARGET_DIR)/usr/bin/mkimage
endif
ifeq ($(BR2_TARGET_UBOOT_TOOL_ENV),y)
U_BOOT_TARGETS+=$(TARGET_DIR)/usr/sbin/fw_printenv
endif
U_BOOT_CONFIGURE_OPTS += CONFIG_NOSOFTFLOAT=1
# Define a helper function
define insert_define
@echo "#ifdef $(strip $(1))" >> $(U_BOOT_INC_CONF_FILE)
@echo "#undef $(strip $(1))" >> $(U_BOOT_INC_CONF_FILE)
@echo "#endif" >> $(U_BOOT_INC_CONF_FILE)
@echo '#define $(strip $(1)) $(call qstrip,$(2))' >> $(U_BOOT_INC_CONF_FILE)
endef
$(DL_DIR)/$(U_BOOT_SOURCE):
$(call DOWNLOAD,$(U_BOOT_SITE),$(U_BOOT_SOURCE))
$(U_BOOT_DIR)/.unpacked: $(DL_DIR)/$(U_BOOT_SOURCE)
$(U_BOOT_CAT) $(DL_DIR)/$(U_BOOT_SOURCE) \
| tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
mkdir -p $(U_BOOT_DIR)
touch $@
$(U_BOOT_DIR)/.patched: $(U_BOOT_DIR)/.unpacked
toolchain/patch-kernel.sh $(U_BOOT_DIR) boot/u-boot \
u-boot-$(U_BOOT_VERSION)-\*.patch \
u-boot-$(U_BOOT_VERSION)-\*.patch.$(ARCH)
ifneq ($(qstrip $(BR2_TARGET_UBOOT_CUSTOM_PATCH_DIR)),)
toolchain/patch-kernel.sh $(U_BOOT_DIR) $(U_BOOT_CUSTOM_PATCH_DIR) u-boot-$(U_BOOT_VERSION)-\*.patch
endif
touch $@
$(U_BOOT_DIR)/.configured: $(U_BOOT_DIR)/.patched
ifeq ($(U_BOOT_BOARD_NAME),)
$(error NO U-Boot board name set. Check your BR2_TARGET_UBOOT_BOARDNAME setting)
endif
$(TARGET_CONFIGURE_OPTS) \
CFLAGS="$(TARGET_CFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS)" \
$(U_BOOT_CONFIGURE_OPTS) \
$(MAKE) -C $(U_BOOT_DIR) \
$(UBOOT_BOARD_NAME)_config
touch $@
$(U_BOOT_DIR)/.header_modified: $(U_BOOT_DIR)/.configured
# Modify configuration header in $(U_BOOT_INC_CONF_FILE)
ifdef BR2_TARGET_UBOOT_DEFAULT_ENV
@echo >> $(U_BOOT_INC_CONF_FILE)
@echo "/* Add a wrapper around the values Buildroot sets. */" >> $(U_BOOT_INC_CONF_FILE)
@echo "#ifndef __BR2_ADDED_CONFIG_H" >> $(U_BOOT_INC_CONF_FILE)
@echo "#define __BR2_ADDED_CONFIG_H" >> $(U_BOOT_INC_CONF_FILE)
$(call insert_define, DATE, $(DATE))
$(call insert_define, CONFIG_LOAD_SCRIPTS, 1)
endif # BR2_TARGET_UBOOT_DEFAULT_ENV
ifdef BR2_TARGET_UBOOT_NETWORK
ifneq ($(strip $(BR2_TARGET_UBOOT_IPADDR)),"")
$(call insert_define, CONFIG_IPADDR, $(BR2_TARGET_UBOOT_IPADDR))
ifneq ($(strip $(BR2_TARGET_UBOOT_GATEWAY)),"")
$(call insert_define, CONFIG_GATEWAYIP, $(BR2_TARGET_UBOOT_GATEWAY))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_NETMASK)),"")
$(call insert_define, CONFIG_NETMASK, $(BR2_TARGET_UBOOT_NETMASK))
endif
endif # end BR2_TARGET_U_BOOT_IPADDR
ifneq ($(strip $(BR2_TARGET_UBOOT_SERVERIP)),"")
$(call insert_define, CONFIG_SERVERIP, $(BR2_TARGET_UBOOT_SERVERIP))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_ETHADDR)),"")
$(call insert_define, CONFIG_ETHADDR, $(BR2_TARGET_UBOOT_ETHADDR))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_ETH1ADDR)),)
ifneq ($(strip $(BR2_TARGET_UBOOT_ETH1ADDR)),"")
$(call insert_define, CONFIG_ETH1ADDR, $(BR2_TARGET_UBOOT_ETH1ADDR))
endif
endif
endif # BR2_TARGET_UBOOT_NETWORK
ifeq ($(BR2_TARGET_UBOOT_SILENT),y)
$(call insert_define, CONFIG_SILENT_CONSOLE,)
endif
ifdef BR2_TARGET_UBOOT_DEFAULT_ENV
ifneq ($(strip $(BR2_TARGET_UBOOT_KERNEL_START)),"")
$(call insert_define, KERNEL_START, $(BR2_TARGET_UBOOT_KERNEL_START))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_KERNEL_LOCATION)),"")
$(call insert_define, KERNEL_LOCATION, $(BR2_TARGET_UBOOT_KERNEL_LOCATION))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_FILESYSTEM_START)),"")
$(call insert_define, FILESYSTEM_START, $(BR2_TARGET_UBOOT_FILESYSTEM_START))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_FILESYSTEM_LOCATION)),"")
$(call insert_define, FILESYSTEM_LOCATION, $(BR2_TARGET_UBOOT_FILESYSTEM_LOCATION))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_FILESYSTEM_SIZE)),"")
$(call insert_define, FILESYSTEM_SIZE, $(BR2_TARGET_UBOOT_FILESYSTEM_SIZE))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_END_OF_FLASH)),"")
$(call insert_define, END_OF_FLASH, $(BR2_TARGET_UBOOT_END_OF_FLASH))
endif
ifneq ($(strip $(BR2_TARGET_UBOOT_MEMORY_SIZE)),"")
$(call insert_define, MEMORY_SIZE, $(BR2_TARGET_UBOOT_MEMORY_SIZE))
endif
@echo "#endif /* __BR2_ADDED_CONFIG_H */" >> $(U_BOOT_INC_CONF_FILE)
endif # BR2_TARGET_UBOOT_DEFAULT_ENV
touch $@
$(U_BOOT_DIR)/$(U_BOOT_BIN): $(U_BOOT_DIR)/.header_modified
$(TARGET_CONFIGURE_OPTS) \
CFLAGS="$(TARGET_CFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS)" \
$(U_BOOT_CONFIGURE_OPTS) \
$(MAKE) CROSS_COMPILE="$(TARGET_CROSS)" ARCH=$(U_BOOT_ARCH) \
-C $(U_BOOT_DIR)
$(BINARIES_DIR)/$(U_BOOT_BIN): $(U_BOOT_DIR)/$(U_BOOT_BIN)
rm -f $(BINARIES_DIR)/$(U_BOOT_BIN)
cp -dpf $(U_BOOT_DIR)/$(U_BOOT_BIN) $(BINARIES_DIR)/
# Build just mkimage for the host. It might have already been built by
# the U-Boot build procedure, but mkimage may also be needed even if
# U-Boot isn't selected in the configuration, to generate a kernel
# uImage.
$(MKIMAGE): $(U_BOOT_DIR)/.patched
mkdir -p $(@D)
$(MAKE) -C $(U_BOOT_DIR) tools
cp -dpf $(U_BOOT_DIR)/tools/mkimage $(@D)
$(TARGET_DIR)/usr/bin/mkimage: $(U_BOOT_DIR)/.configured
mkdir -p $(@D)
$(TARGET_CC) -I$(U_BOOT_DIR)/include -I$(U_BOOT_DIR)/tools \
-DUSE_HOSTCC -o $@ \
$(U_BOOT_DIR)/common/image.c \
$(wildcard $(addprefix $(U_BOOT_DIR)/tools/,default_image.c \
fit_image.c imximage.c kwbimage.c mkimage.c)) \
$(addprefix $(U_BOOT_DIR)/lib_generic/,crc32.c md5.c sha1.c) \
$(U_BOOT_DIR)/tools/os_support.c \
$(U_BOOT_DIR)/libfdt/fdt*.c
$(STRIPCMD) $(STRIP_STRIP_UNNEEDED) $@
$(TARGET_DIR)/usr/sbin/fw_printenv: $(U_BOOT_DIR)/.configured
mkdir -p $(@D)
$(TARGET_CC) -I$(U_BOOT_DIR)/include -I$(LINUX_HEADERS_DIR)/include \
-DUSE_HOSTCC -o $@ \
$(U_BOOT_DIR)/tools/env/*.c $(U_BOOT_DIR)/lib_generic/crc32.c
$(STRIPCMD) $(STRIP_STRIP_UNNEEDED) $@
ln -sf fw_printenv $(TARGET_DIR)/usr/sbin/fw_setenv
u-boot: $(U_BOOT_TARGETS)
u-boot-autoscript: $(U_BOOT_AUTOSCRIPT).img
u-boot-clean:
-$(MAKE) -C $(U_BOOT_DIR) clean
rm -f $(U_BOOT_TOOLS) $(U_BOOT_TARGET_TOOLS)
u-boot-dirclean:
rm -rf $(U_BOOT_DIR)
u-boot-source: $(DL_DIR)/$(U_BOOT_SOURCE)
u-boot-unpacked: $(U_BOOT_DIR)/.patched
u-boot-configured: $(U_BOOT_DIR)/.header_modified
#############################################################
#
# Generate an autoscript with the configration items
#
#############################################################
$(U_BOOT_AUTOSCRIPT): .config
rm -f $(U_BOOT_AUTOSCRIPT)
ifneq ($(TARGET_UBOOT_IPADDR),)
echo setenv ipaddr $(TARGET_UBOOT_IPADDR) > $(U_BOOT_AUTOSCRIPT)
else
echo TARGET_UBOOT_IPADDR="$(TARGET_UBOOT_IPADDR)"
endif
ifneq ($(TARGET_UBOOT_SERVERIP),)
echo setenv serverip $(TARGET_UBOOT_SERVERIP) >> $(U_BOOT_AUTOSCRIPT)
endif
ifneq ($(TARGET_UBOOT_GATEWAY),)
echo setenv gatewayip $(TARGET_UBOOT_GATEWAY) >> $(U_BOOT_AUTOSCRIPT)
endif
ifneq ($(TARGET_UBOOT_NETMASK),)
echo setenv netmask $(TARGET_UBOOT_NETMASK) >> $(U_BOOT_AUTOSCRIPT)
endif
echo setenv linux $(LINUX26_KERNEL_NAME) >> $(U_BOOT_AUTOSCRIPT)
echo setenv kernel-version $(LINUX26_VERSION) >> $(U_BOOT_AUTOSCRIPT)
echo setenv kernel-date $(DATE) >> $(U_BOOT_AUTOSCRIPT)
echo setenv hostname $(TARGET_HOSTNAME) >> $(U_BOOT_AUTOSCRIPT)
echo setenv fs-date $(DATE) >> $(U_BOOT_AUTOSCRIPT)
echo setenv rd-1 rootfs.$(ARCH)-$(DATE).ext2 >> $(U_BOOT_AUTOSCRIPT)
echo setenv rd-2 rootfs.$(ARCH)-$(DATE).jffs2 >> $(U_BOOT_AUTOSCRIPT)
echo setenv rd rootfs.$(BR2_ARCH)-$(DATE).ext2 >> $(U_BOOT_AUTOSCRIPT)
echo setenv ver 1 >> $(U_BOOT_AUTOSCRIPT)
ifneq ($(TARGET_UBOOT_ETHADDR),)
echo setenv ethaddr $(TARGET_UBOOT_ETHADDR) >> $(U_BOOT_AUTOSCRIPT)
endif
echo setenv fstype ram >> $(U_BOOT_AUTOSCRIPT)
echo fs >> $(U_BOOT_AUTOSCRIPT)
echo os >> $(U_BOOT_AUTOSCRIPT)
echo setargs >> $(U_BOOT_AUTOSCRIPT)
echo saveenv >> $(U_BOOT_AUTOSCRIPT)
$(U_BOOT_AUTOSCRIPT).img: $(U_BOOT_AUTOSCRIPT) $(MKIMAGE)
$(MKIMAGE) -A $(ARCH) \
-O linux \
-T script \
-C none \
-a 0 \
-e 0 \
-n "autoscr config" \
-d $(U_BOOT_AUTOSCRIPT) \
$(U_BOOT_AUTOSCRIPT).img
#############################################################
#
# Toplevel Makefile options
#
#############################################################
ifeq ($(BR2_TARGET_UBOOT),y)
TARGETS+=u-boot
# we NEED a board name
ifeq ($(UBOOT_BOARD_NAME),)
$(error NO U-Boot board name set. Check your BR2_TARGET_UBOOT_BOARDNAME setting)
endif
endif
|
