From 930c46e86123aeea1c73ae55d70ff3dcfc077992 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Beh=C3=BAn?= Date: Thu, 17 Feb 2022 13:54:43 +0100 Subject: [PATCH 3/3] arm: mvebu: turris_omnia: Reset the board immediately on DDR training failure MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Stefan Roese Reviewed-by: Pali Rohár --- configs/turris_omnia_defconfig | 1 + 1 file changed, 1 insertion(+) --- a/configs/turris_omnia_defconfig +++ b/configs/turris_omnia_defconfig @@ -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