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u-boot: build signed image for OMAP processors

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Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Luca Ceresoli 2012-05-17 10:11:31 +00:00 committed by Peter Korsgaard
parent 761dc51bdb
commit 7212479492
2 changed files with 57 additions and 0 deletions
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32
boot/uboot/Config.in
View File

@ -99,6 +99,38 @@ config BR2_TARGET_UBOOT_FORMAT_LDR
endchoice
config BR2_TARGET_UBOOT_OMAP_IFT
depends on BR2_TARGET_UBOOT_FORMAT_BIN
depends on BR2_arm || BR2_armeb
select BR2_PACKAGE_HOST_OMAP_U_BOOT_UTILS
bool "produce a .ift signed image (OMAP)"
help
Use gpsign to produce an image of u-boot.bin signed with
a Configuration Header for booting on OMAP processors.
This allows U-Boot to boot without the need for an
intermediate bootloader (e.g. x-loader) if it is written
on the first sector of the boot medium.
This only works for some media, such as NAND. Check your
chip documentation for details. You might also want to
read the documentation of gpsign, the tool that generates
the .ift image, at:
https://github.com/nmenon/omap-u-boot-utils/blob/master/README
if BR2_TARGET_UBOOT_OMAP_IFT
config BR2_TARGET_UBOOT_OMAP_IFT_CONFIG
string "gpsign Configuration Header config file"
help
The Configuration Header (CH) config file defines the
desired content of the CH for the signed image.
It usually contains external RAM settings and
possibly other external devices initialization.
The omap-u-boot-utils software contains example
configuration files for some boards:
https://github.com/nmenon/omap-u-boot-utils/tree/master/configs
endif
menuconfig BR2_TARGET_UBOOT_NETWORK
bool "Custom Network Settings"
help

25
boot/uboot/uboot.mk
View File

@ -33,6 +33,7 @@ else ifeq ($(BR2_TARGET_UBOOT_FORMAT_IMG),y)
UBOOT_BIN = u-boot.img
else
UBOOT_BIN = u-boot.bin
UBOOT_BIN_IFT = $(UBOOT_BIN).ift
endif
UBOOT_ARCH=$(KERNEL_ARCH)
@ -88,12 +89,36 @@ define UBOOT_BUILD_CMDS
$(UBOOT_MAKE_TARGET)
endef
define UBOOT_BUILD_OMAP_IFT
$(HOST_DIR)/usr/bin/gpsign -f $(@D)/u-boot.bin \
-c $(call qstrip,$(BR2_TARGET_UBOOT_OMAP_IFT_CONFIG))
endef
define UBOOT_INSTALL_IMAGES_CMDS
cp -dpf $(@D)/$(UBOOT_BIN) $(BINARIES_DIR)/
$(if $(BR2_TARGET_UBOOT_SPL),
cp -dpf $(@D)/$(BR2_TARGET_UBOOT_SPL_NAME) $(BINARIES_DIR)/)
endef
define UBOOT_INSTALL_OMAP_IFT_IMAGE
cp -dpf $(@D)/$(UBOOT_BIN_IFT) $(BINARIES_DIR)/
endef
ifeq ($(BR2_TARGET_UBOOT_OMAP_IFT),y)
# we NEED a config file unless we're at make source
ifeq ($(filter source,$(MAKECMDGOALS)),)
ifeq ($(call qstrip,$(BR2_TARGET_UBOOT_OMAP_IFT_CONFIG)),)
$(error No gpsign config file. Check your BR2_TARGET_UBOOT_OMAP_IFT_CONFIG setting)
endif
ifeq ($(wildcard $(call qstrip,$(BR2_TARGET_UBOOT_OMAP_IFT_CONFIG))),)
$(error gpsign config file $(BR2_TARGET_UBOOT_OMAP_IFT_CONFIG) not found. Check your BR2_TARGET_UBOOT_OMAP_IFT_CONFIG setting)
endif
endif
UBOOT_DEPENDENCIES += host-omap-u-boot-utils
UBOOT_POST_BUILD_HOOKS += UBOOT_BUILD_OMAP_IFT
UBOOT_POST_INSTALL_IMAGES_HOOKS += UBOOT_INSTALL_OMAP_IFT_IMAGE
endif
$(eval $(call GENTARGETS))
ifeq ($(BR2_TARGET_UBOOT),y)