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rockchip: Set default LNX_KRNL_IMG_TEXT_OFFSET_BASE to SYS_TEXT_BASE

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U-Boot can be chainloaded from vendor firmware on ARM64 chromebooks from
a GPT partition (roughly the same as in doc/chromium/chainload.rst), but
an appropriate image header must be built-in to the U-Boot binary by
enabling LINUX_KERNEL_IMAGE_HEADER.

This header has a field for an image load offset from 2MiB alignment
which must also be customized through LNX_KRNL_IMG_TEXT_OFFSET_BASE.
Set it equal to SYS_TEXT_BASE by default for Rockchip boards, which
happens to make this offset zero and works fine on chromebook_kevin
both for chainloading and bare-metal use.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Alper Nebi Yasak 2022-01-29 18:27:56 +03:00 committed by Kever Yang
parent 9acae54800
commit b42297ba81
1 changed files with 3 additions and 0 deletions
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3
arch/arm/mach-rockchip/Kconfig
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@ -390,6 +390,9 @@ config ROCKCHIP_SPI_IMAGE
containing U-Boot. The image is built by binman. U-Boot sits near
the start of the image.
config LNX_KRNL_IMG_TEXT_OFFSET_BASE
default SYS_TEXT_BASE
source "arch/arm/mach-rockchip/px30/Kconfig"
source "arch/arm/mach-rockchip/rk3036/Kconfig"
source "arch/arm/mach-rockchip/rk3128/Kconfig"