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arm: mvebu: turris_omnia: Reset the board immediately on DDR training failure

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The state of the current DDR training code for Armada 38x is such that
we cannot be sure it will always train successfully - although after the
last change we were yet unable to find a board that failed DDR training,
from experience in the last 2 years we know that it is possible.

The experience also tells us that in many cases the board fails training
only sometimes, and after a reset the training is successful.

Enable the new option that makes the board reset itself on DDR training
failure immediately. Until now we called hang() in such a case, which
meant that the board was reset by the MCU after 120 seconds.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Pali Rohár <pali@kernel.org>
This commit is contained in:
Marek Behún 2022-02-17 13:54:43 +01:00 committed by Stefan Roese
parent 871ee6634d
commit 4b7db75616
1 changed files with 1 additions and 0 deletions
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configs/turris_omnia_defconfig
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@ -11,6 +11,7 @@ CONFIG_NR_DRAM_BANKS=2
CONFIG_SYS_MEMTEST_START=0x00800000
CONFIG_SYS_MEMTEST_END=0x00ffffff
CONFIG_TARGET_TURRIS_OMNIA=y
CONFIG_DDR_RESET_ON_TRAINING_FAILURE=y
CONFIG_ENV_SIZE=0x10000
CONFIG_ENV_OFFSET=0xF0000
CONFIG_ENV_SECT_SIZE=0x10000