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arch/arm: Enable FIT payloads

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Implements fit_payload_arch for the arm (aarch32) architecture, so that
FIT images can be used. The implementation is very similar to the
existing implementations for arm64 and riscv, and has mostly been
lifted from these other ports.

TEST: Booted Beaglebone Black (in progress port, to be submitted soon!)
with a FIT image containing a 5.4 kernel, dtb and initramfs.

Change-Id: I6b50c6f06b83c00a5b3622b5bbafe67130b6d233
Signed-off-by: Sam Lewis <sam.vr.lewis@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44377
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Sam Lewis
2020-08-09 15:33:00 +10:00
committed by Patrick Georgi
parent 3b9041a563
commit cb287987a1
4 changed files with 101 additions and 2 deletions
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4
payloads/Kconfig
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@@ -30,7 +30,7 @@ config PAYLOAD_ELF
config PAYLOAD_FIT
bool "A FIT payload"
depends on ARCH_ARM64 || ARCH_RISCV
depends on ARCH_ARM64 || ARCH_RISCV || ARCH_ARM
select PAYLOAD_FIT_SUPPORT
help
Select this option if you have a payload image (a FIT file) which
@@ -97,7 +97,7 @@ config PAYLOAD_FIT_SUPPORT
bool "FIT support"
default n
default y if PAYLOAD_LINUX && (ARCH_ARM || ARCH_ARM64 || ARCH_RISCV)
depends on ARCH_ARM64 || ARCH_RISCV
depends on ARCH_ARM64 || ARCH_RISCV || ARCH_ARM
select FLATTENED_DEVICE_TREE
help
Select this option if your payload is of type FIT.