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board: phytec: phycore-am64x: Add watchdog start to bootcmd

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Allows run-time control over watchdog auto-start and the timeout via
setting the environment variable watchdog_timeout_ms. A value of zero
means "do not start". Use CONFIG_WATCHDOG_TIMEOUT_MSECS as initial value.
Users can enable the watchdog to monitor the boot process until userspace
or OS takes over to serve the watchdog.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
This commit is contained in:
Wadim Egorov 2025-07-30 17:42:15 +02:00 committed by Tom Rini
parent d27b7a1c77
commit 9de098a9f8
2 changed files with 9 additions and 1 deletions
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3
board/phytec/phycore_am64x/phycore_am64x.env
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@ -1,6 +1,7 @@
#include <env/phytec/k3_mmc.env>
#include <env/phytec/k3_net.env>
#include <env/phytec/k3_spi.env>
#include <env/phytec/watchdog.env>
fdtaddr=0x88000000
loadaddr=0x82000000
@ -26,3 +27,5 @@ spi_ramdisk_addr=0x2200000
bootmeths=script efi extlinux pxe
boot_targets=mmc1 mmc0 spi_flash dhcp
watchdog=watchdog@e000000

7
configs/phycore_am64x_a53_defconfig
View File

@ -39,7 +39,7 @@ CONFIG_SPL_LOAD_FIT=y
CONFIG_SPL_LOAD_FIT_ADDRESS=0x81000000
CONFIG_BOOTSTD_FULL=y
CONFIG_OF_BOARD_SETUP=y
CONFIG_BOOTCOMMAND="bootflow scan -lb; run ${boot}boot"
CONFIG_BOOTCOMMAND="run start_watchdog; bootflow scan -lb; run ${boot}boot"
CONFIG_DEFAULT_FDT_FILE="oftree"
# CONFIG_BOARD_INIT is not set
CONFIG_BOARD_LATE_INIT=y
@ -77,6 +77,7 @@ CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_MTD=y
CONFIG_CMD_USB=y
CONFIG_CMD_WDT=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_EFIDEBUG=y
CONFIG_CMD_RTC=y
@ -182,4 +183,8 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x0451
CONFIG_USB_GADGET_PRODUCT_NUM=0x6165
CONFIG_USB_GADGET_DOWNLOAD=y
CONFIG_USB_FUNCTION_MASS_STORAGE=y
# CONFIG_WATCHDOG is not set
# CONFIG_WATCHDOG_AUTOSTART is not set
CONFIG_WDT=y
CONFIG_WDT_K3_RTI=y
CONFIG_FS_FAT_MAX_CLUSTSIZE=16384