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39 lines
1.5 KiB
Diff
39 lines
1.5 KiB
Diff
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From 930c46e86123aeea1c73ae55d70ff3dcfc077992 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <marek.behun@nic.cz>
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Date: Thu, 17 Feb 2022 13:54:43 +0100
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Subject: [PATCH 3/3] arm: mvebu: turris_omnia: Reset the board immediately on
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DDR training failure
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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The state of the current DDR training code for Armada 38x is such that
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we cannot be sure it will always train successfully - although after the
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last change we were yet unable to find a board that failed DDR training,
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from experience in the last 2 years we know that it is possible.
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The experience also tells us that in many cases the board fails training
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only sometimes, and after a reset the training is successful.
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Enable the new option that makes the board reset itself on DDR training
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failure immediately. Until now we called hang() in such a case, which
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meant that the board was reset by the MCU after 120 seconds.
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Signed-off-by: Marek Behún <marek.behun@nic.cz>
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Reviewed-by: Stefan Roese <sr@denx.de>
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Reviewed-by: Pali Rohár <pali@kernel.org>
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---
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configs/turris_omnia_defconfig | 1 +
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1 file changed, 1 insertion(+)
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--- a/configs/turris_omnia_defconfig
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+++ b/configs/turris_omnia_defconfig
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@@ -11,6 +11,7 @@ CONFIG_NR_DRAM_BANKS=2
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CONFIG_SYS_MEMTEST_START=0x00800000
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CONFIG_SYS_MEMTEST_END=0x00ffffff
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CONFIG_TARGET_TURRIS_OMNIA=y
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+CONFIG_DDR_RESET_ON_TRAINING_FAILURE=y
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CONFIG_ENV_SIZE=0x10000
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CONFIG_ENV_OFFSET=0xF0000
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CONFIG_ENV_SECT_SIZE=0x10000
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