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board/stmicroelectronics/common/stm32mp157: fix U-Boot corruption on the first boot

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The stm32mp157 images successfully boot only once. Subsequent boot
attempts fail to reach U-Boot. The root cause turns out to be in U-Boot
corruption during the first boot. The stm32mp1 U-Boot stores its
environment at the end of GPT partition named 'ssbl' since v2020.10-rc2.
However Buildroot genimage template for stm32mp157 boards creates 'ssbl'
partition w/o extra space for U-Boot primary and redundant environments.
This patch explicitly specifies 'ssbl' partition size that should be
enough for both u-boot.stm32 image (~1M) and both environments (16K).

Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Tested-by: Pierre-Jean Texier <texier.pj2@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Sergey Matyukevich 2021-07-04 18:45:14 +03:00 committed by Thomas Petazzoni
parent a9e405b079
commit 3e70251d36
1 changed files with 1 additions and 0 deletions
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board/stmicroelectronics/common/stm32mp157/genimage.cfg.template
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@ -13,6 +13,7 @@ image sdcard.img {
partition ssbl {
image = "u-boot.stm32"
size = 2M
}
partition rootfs {