1 files changed, 193 insertions, 0 deletions
diff --git a/boot/u-boot/u-boot.mk b/boot/u-boot/u-boot.mk
new file mode 100644
index 000000000..ad67343a9
--- /dev/null
+++ b/boot/u-boot/u-boot.mk
@@ -0,0 +1,193 @@
+#############################################################
+#
+# U-Boot
+#
+#############################################################
+U_BOOT_VERSION:=$(call qstrip,$(BR2_TARGET_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 ($(U_BOOT_VERSION),)
+U_BOOT_VERSION=2010.03
+endif
+
+ifeq ($(U_BOOT_VERSION),custom)
+# Handle custom U-Boot tarballs as specified by the configuration
+U_BOOT_TARBALL=$(call qstrip,$(BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION))
+U_BOOT_SITE:=$(dir $(U_BOOT_TARBALL))
+U_BOOT_SOURCE:=$(notdir $(U_BOOT_TARBALL))
+else
+# Handle stable official U-Boot versions
+U_BOOT_SITE:=ftp://ftp.denx.de/pub/u-boot
+U_BOOT_SOURCE:=u-boot-$(U_BOOT_VERSION).tar.bz2
+endif
+
+U_BOOT_DIR:=$(BUILD_DIR)/u-boot-$(U_BOOT_VERSION)
+U_BOOT_CAT:=$(BZCAT)
+U_BOOT_BIN:=u-boot.bin
+
+MKIMAGE:=$(HOST_DIR)/usr/bin/mkimage
+
+U_BOOT_TARGETS:=$(BINARIES_DIR)/$(U_BOOT_BIN) $(MKIMAGE)
+
+# u-boot still uses arch=ppc for powerpc
+U_BOOT_ARCH=$(KERNEL_ARCH:powerpc=ppc)
+
+U_BOOT_INC_CONF_FILE:=$(U_BOOT_DIR)/include/config.h
+
+ifeq ($(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)
+	mkdir -p $(@D)
+	$(INFLATE$(suffix $(U_BOOT_SOURCE))) $(DL_DIR)/$(U_BOOT_SOURCE) \
+		| tar $(TAR_STRIP_COMPONENTS)=1 -C $(@D) $(TAR_OPTIONS) -
+	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)	\
+		$(U_BOOT_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_NETWORK
+	@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))
+	$(call insert_define, CONFIG_LOAD_SCRIPTS, 1)
+ifneq ($(strip $(BR2_TARGET_UBOOT_IPADDR)),"")
+	$(call insert_define, CONFIG_IPADDR, $(BR2_TARGET_UBOOT_IPADDR))
+endif
+ifneq ($(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, $(BR2_TARGET_UBOOT_NETMASK))
+endif
+ifneq ($(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)),"")
+	$(call insert_define, CONFIG_ETH1ADDR, $(BR2_TARGET_UBOOT_ETH1ADDR))
+endif
+	@echo "#endif /* __BR2_ADDED_CONFIG_H */" >> $(U_BOOT_INC_CONF_FILE)
+endif # BR2_TARGET_UBOOT_NETWORK
+	touch $@
+
+# Build U-Boot itself
+$(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 $(U_BOOT_DIR)
+
+# Copy the result to the images/ directory
+$(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 $(@D)
+
+# Build manually mkimage for the target
+$(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) $@
+
+# Build manually fw_printenv for the target
+$(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: $(U_BOOT_TARGETS)
+
+u-boot-clean:
+	-$(MAKE) -C $(U_BOOT_DIR) clean
+	rm -f $(MKIMAGE)
+
+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: $(U_BOOT_DIR)/.header_modified
+
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(BR2_TARGET_UBOOT),y)
+TARGETS+=u-boot
+
+# we NEED a board name
+ifeq ($(U_BOOT_BOARD_NAME),)
+$(error NO U-Boot board name set. Check your BR2_TARGET_UBOOT_BOARDNAME setting)
+endif
+
+endif