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display5: wdt: Enable WDT support (both SPL and u-boot)

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Test case:

The fitImage gets corrupted:

truncate -c -s 3M fitImage
run tftp_mmc_fitImg
setenv boot_os y
reset

[board shall hang in SPL with
"Trying to boot from MMC1" information]

Then after X seconds WDT is causing board to reset. After N boot attempts
we enter recovery mode.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2018-05-11 16:51:09 +02:00 committed by Stefano Babic
parent 27aede24bc
commit 76d1d169f3
4 changed files with 12 additions and 0 deletions
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5
board/liebherr/display5/spl.c
View File

@ -21,6 +21,7 @@
#include <fsl_esdhc.h>
#include <netdev.h>
#include <bootcount.h>
#include <watchdog.h>
#include "common.h"
DECLARE_GLOBAL_DATA_PTR;
@ -197,6 +198,10 @@ void board_init_f(ulong dummy)
displ5_set_iomux_misc_spl();
/* Initialize and reset WDT in SPL */
hw_watchdog_init();
WATCHDOG_RESET();
/* load/boot image from boot device */
board_init_r(NULL, 0);
}

1
configs/display5_defconfig
View File

@ -10,6 +10,7 @@ CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y
CONFIG_SPL_WATCHDOG_SUPPORT=y
CONFIG_DEFAULT_DEVICE_TREE="imx6q-display5"
CONFIG_FIT=y
CONFIG_SPL_LOAD_FIT=y

1
configs/display5_factory_defconfig
View File

@ -9,6 +9,7 @@ CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL=y
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y
CONFIG_SPL_WATCHDOG_SUPPORT=y
CONFIG_FIT=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,MX6Q"

5
include/configs/display5.h
View File

@ -383,6 +383,11 @@
#define CONFIG_MTD_PARTITIONS
#define CONFIG_MTD_DEVICE
/* Watchdog */
#define CONFIG_HW_WATCHDOG
#define CONFIG_IMX_WATCHDOG
#define CONFIG_WATCHDOG_TIMEOUT_MSECS 15000
/* ENV config */
#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
#define CONFIG_ENV_SIZE (SZ_64K)