u-boot/board/st
Marek Vasut b3d97f8ce3 ARM: stm32: Power cycle Buck3 in reset on DHSOM
In case the DHSOM is in suspend state and either reset button is pushed
or IWDG2 triggers a watchdog reset, then DRAM initialization could fail
as follows:

  "
  RAM: DDR3L 32bits 2x4Gb 533MHz
  DDR invalid size : 0x4, expected 0x40000000
  DRAM init failed: -22
  ### ERROR ### Please RESET the board ###
  "

Avoid this failure by not keeping any Buck regulators enabled during reset,
let the SoC and DRAMs power cycle fully. Since the change which keeps Buck3
VDD enabled during reset is ST specific, move this addition to ST specific
SPL board initialization so that it wouldn't affect the DHSOM .

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2023-08-16 15:19:57 +02:00
..
common ARM: stm32: Power cycle Buck3 in reset on DHSOM 2023-08-16 15:19:57 +02:00
stih410-b2260 common: Drop asm/global_data.h from common header 2021-02-02 15:33:42 -05:00
stm32f429-discovery doc: Add documentation for STM32 MCUs 2022-05-10 13:56:12 +02:00
stm32f429-evaluation doc: Add documentation for STM32 MCUs 2022-05-10 13:56:12 +02:00
stm32f469-discovery doc: Add documentation for STM32 MCUs 2022-05-10 13:56:12 +02:00
stm32f746-disco video: Drop use of the lcd header file 2022-10-30 20:07:17 +01:00
stm32h743-disco doc: Add documentation for STM32 MCUs 2022-05-10 13:56:12 +02:00
stm32h743-eval doc: Add documentation for STM32 MCUs 2022-05-10 13:56:12 +02:00
stm32h750-art-pi doc: Add documentation for STM32 MCUs 2022-05-10 13:56:12 +02:00
stm32mp1 ARM: stm32: Power cycle Buck3 in reset on DHSOM 2023-08-16 15:19:57 +02:00
stv0991 bootstage: Eliminate when not enabled 2021-07-07 10:17:54 -04:00