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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2010-04-04 17:11:33 +0200 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2010-06-12 13:21:36 +0200 |
| commit | f2d16ae0e17370131e64438cd50d5a6c7ab0ea8d (patch) | |
| tree | 16abba56c2d28565cd14efa1689913abd5d38bd9 | |
| parent | dc63ef95f39302195b7430b6be00d250cc5c9aea (diff) | |
| download | buildroot-novena-f2d16ae0e17370131e64438cd50d5a6c7ab0ea8d.tar.gz buildroot-novena-f2d16ae0e17370131e64438cd50d5a6c7ab0ea8d.zip | |
u-boot: support building for mkimage
To build mkimage for the host (which is needed to build an uImage of
the kernel), it is not necessary to configure U-Boot, and therefore to
have a particular board selected.
Therefore, this commit:
* Adds a verification at U-Boot configure step that a U-Boot board
name has been defined
* Sets a default U-Boot version if none has been specified, so that
even when U-Boot isn't selected but we want to build mkimage for
the host, a particular U-Boot version is picked.
* Make the host mkimage target depend only on U-Boot being
downloaded/extracted/patched, and the target mkimage/fw_printenv
targets depend on U-Boot being fully configured.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| -rw-r--r-- | boot/u-boot/u-boot.mk | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/boot/u-boot/u-boot.mk b/boot/u-boot/u-boot.mk index ac16c8bf4..00724bae6 100644 --- a/boot/u-boot/u-boot.mk +++ b/boot/u-boot/u-boot.mk @@ -4,6 +4,15 @@ # ############################################################# 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 @@ -30,9 +39,6 @@ TARGET_UBOOT_ETHADDR:=$(call qstrip,$(BR2_TARGET_UBOOT_ETHADDR)) # u-boot still uses arch=ppc for powerpc U_BOOT_ARCH=$(KERNEL_ARCH:powerpc=ppc) -ifeq ($(UBOOT_BOARD_NAME),) -UBOOT_BOARD_NAME:=$(call qstrip,$(BR2_TARGET_UBOOT_BOARDNAME)) -endif U_BOOT_INC_CONF_FILE:=$(U_BOOT_DIR)/include/config.h @@ -73,6 +79,9 @@ 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)" \ @@ -154,11 +163,16 @@ $(BINARIES_DIR)/$(U_BOOT_BIN): $(U_BOOT_DIR)/$(U_BOOT_BIN) rm -f $(BINARIES_DIR)/$(U_BOOT_BIN) cp -dpf $(U_BOOT_DIR)/$(U_BOOT_BIN) $(BINARIES_DIR)/ -$(U_BOOT_TOOLS): $(U_BOOT_DIR)/$(U_BOOT_BIN) +# 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) - cp -dpf $(U_BOOT_DIR)/tools/mkimage $@ + $(MAKE) -C $(U_BOOT_DIR) tools + cp -dpf $(U_BOOT_DIR)/tools/mkimage $(@D) -$(TARGET_DIR)/usr/bin/mkimage: $(U_BOOT_DIR)/$(U_BOOT_BIN) +$(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 $@ \ @@ -171,7 +185,7 @@ $(TARGET_DIR)/usr/bin/mkimage: $(U_BOOT_DIR)/$(U_BOOT_BIN) $(STRIPCMD) $(STRIP_STRIP_UNNEEDED) $@ -$(TARGET_DIR)/usr/sbin/fw_printenv: $(U_BOOT_DIR)/$(U_BOOT_BIN) +$(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 $@ \ |