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arm-trusted-firmware: add option to enable/disable building FIP image

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Currently, our arm-trusted-firmware unconditionally builds a FIP
(Firmware Image Package). While this is often needed on platforms
where ATF encapsulates U-Boot, it is not the case on some other
platforms where it's U-Boot that encapsulates parts of ATF.

In order to prepare the support for the later platforms, we make
building the FIP image optional, and update the only defconfig we have
that uses ARM Trusted Firmware.

Note: we considered adding a "default y" here to preserve backward
compatibility, but there really isn't any default that is sane:
whether a FIP image needs to be built or not is purely platform
specific.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2017-12-03 22:48:04 +01:00 committed by Peter Korsgaard
parent ae2a68936f
commit 543dbf2d01
3 changed files with 16 additions and 1 deletions
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8
boot/arm-trusted-firmware/Config.in
View File

@ -56,6 +56,14 @@ config BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM
help
Target plaform to build for.
config BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP
bool "Build FIP image"
help
This option enables building the FIP image (Firmware Image
Package). This is typically the image format used by
platforms were ATF encapsulates the second stage bootloader
(such as U-Boot).
config BR2_TARGET_ARM_TRUSTED_FIRMWARE_ADDITIONAL_VARIABLES
string "Additional ATF build variables"
help

8
boot/arm-trusted-firmware/arm-trusted-firmware.mk
View File

@ -39,10 +39,16 @@ ARM_TRUSTED_FIRMWARE_MAKE_OPTS += SCP_BL2=$(BINARIES_DIR)/scp-fw.bin
ARM_TRUSTED_FIRMWARE_DEPENDENCIES += vexpress-firmware
endif
ARM_TRUSTED_FIRMWARE_MAKE_TARGETS = all
ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP),y)
ARM_TRUSTED_FIRMWARE_MAKE_TARGETS += fip
endif
define ARM_TRUSTED_FIRMWARE_BUILD_CMDS
$(TARGET_CONFIGURE_OPTS) \
$(MAKE) -C $(@D) $(ARM_TRUSTED_FIRMWARE_MAKE_OPTS) \
all fip
$(ARM_TRUSTED_FIRMWARE_MAKE_TARGETS)
endef
define ARM_TRUSTED_FIRMWARE_INSTALL_IMAGES_CMDS

1
configs/arm_juno_defconfig
View File

@ -14,6 +14,7 @@ BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_GIT=y
BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_URL="https://github.com/ARM-software/arm-trusted-firmware.git"
BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_VERSION="v1.2"
BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="juno"
BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP=y
BR2_TARGET_UBOOT=y
BR2_TARGET_UBOOT_BOARDNAME="vexpress_aemv8a_juno"
BR2_TARGET_UBOOT_CUSTOM_VERSION=y