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arm-trusted-firmware: allow to generate the BL31 image

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Some platforms (e.g Allwinner ARM64) don't build a FIP image out of
ATF, but only a BL31 image, which is then encapsulated in U-Boot. This
commit adds an ATF option to build such an image.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2017-12-03 22:48:06 +01:00 committed by Peter Korsgaard
parent 3f64b08ff0
commit 9684459113
2 changed files with 11 additions and 0 deletions
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7
boot/arm-trusted-firmware/Config.in
View File

@ -64,6 +64,13 @@ config BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP
platforms were ATF encapsulates the second stage bootloader
(such as U-Boot).
config BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31
bool "Build BL31 image"
help
This option enables building the BL31 image. This is
typically used on platforms where another bootloader (e.g
U-Boot) encapsulates ATF BL31.
config BR2_TARGET_ARM_TRUSTED_FIRMWARE_UBOOT_AS_BL33
bool "Use U-Boot as BL33"
depends on BR2_TARGET_UBOOT

4
boot/arm-trusted-firmware/arm-trusted-firmware.mk
View File

@ -47,6 +47,10 @@ ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP),y)
ARM_TRUSTED_FIRMWARE_MAKE_TARGETS += fip
endif
ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL31),y)
ARM_TRUSTED_FIRMWARE_MAKE_TARGETS += bl31
endif
define ARM_TRUSTED_FIRMWARE_BUILD_CMDS
$(TARGET_CONFIGURE_OPTS) \
$(MAKE) -C $(@D) $(ARM_TRUSTED_FIRMWARE_MAKE_OPTS) \