[PATCH V5 04/12] iot2050: Add watchdog start to bootcmd
Jan Kiszka
jan.kiszka at siemens.com
Fri Feb 3 13:26:33 CET 2023
From: Jan Kiszka <jan.kiszka at siemens.com>
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
and this to zero by default. Users can then enable the watchdog once the
use and OS which picks it up during boot.
Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
---
configs/iot2050_pg1_defconfig | 2 ++
configs/iot2050_pg2_defconfig | 2 ++
include/configs/iot2050.h | 9 +++++++++
3 files changed, 13 insertions(+)
diff --git a/configs/iot2050_pg1_defconfig b/configs/iot2050_pg1_defconfig
index 28930aac5eb..6c6af35cdee 100644
--- a/configs/iot2050_pg1_defconfig
+++ b/configs/iot2050_pg1_defconfig
@@ -32,6 +32,7 @@ CONFIG_OF_BOARD_SETUP=y
CONFIG_BOOTSTAGE=y
CONFIG_SHOW_BOOT_PROGRESS=y
CONFIG_SPL_SHOW_BOOT_PROGRESS=y
+CONFIG_BOOTCOMMAND="run start_watchdog; run distro_bootcmd"
CONFIG_CONSOLE_MUX=y
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_SPL_MAX_SIZE=0x58000
@@ -141,6 +142,7 @@ CONFIG_USB_DWC3_GENERIC=y
CONFIG_USB_KEYBOARD=y
# CONFIG_WATCHDOG is not set
# CONFIG_WATCHDOG_AUTOSTART is not set
+CONFIG_WATCHDOG_TIMEOUT_MSECS=0
CONFIG_WDT=y
CONFIG_WDT_K3_RTI=y
CONFIG_WDT_K3_RTI_LOAD_FW=y
diff --git a/configs/iot2050_pg2_defconfig b/configs/iot2050_pg2_defconfig
index c76abcca672..43410160c8a 100644
--- a/configs/iot2050_pg2_defconfig
+++ b/configs/iot2050_pg2_defconfig
@@ -32,6 +32,7 @@ CONFIG_OF_BOARD_SETUP=y
CONFIG_BOOTSTAGE=y
CONFIG_SHOW_BOOT_PROGRESS=y
CONFIG_SPL_SHOW_BOOT_PROGRESS=y
+CONFIG_BOOTCOMMAND="run start_watchdog; run distro_bootcmd"
CONFIG_CONSOLE_MUX=y
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_SPL_MAX_SIZE=0x58000
@@ -142,6 +143,7 @@ CONFIG_USB_DWC3_GENERIC=y
CONFIG_USB_KEYBOARD=y
# CONFIG_WATCHDOG is not set
# CONFIG_WATCHDOG_AUTOSTART is not set
+CONFIG_WATCHDOG_TIMEOUT_MSECS=0
CONFIG_WDT=y
CONFIG_WDT_K3_RTI=y
CONFIG_WDT_K3_RTI_LOAD_FW=y
diff --git a/include/configs/iot2050.h b/include/configs/iot2050.h
index 7d087413362..5186dfd8ff8 100644
--- a/include/configs/iot2050.h
+++ b/include/configs/iot2050.h
@@ -15,6 +15,14 @@
/* SPL Loader Configuration */
+#define WATCHDOG_ENV \
+ "watchdog_timeout_ms=" __stringify(CONFIG_WATCHDOG_TIMEOUT_MSECS) "\0" \
+ "start_watchdog=if test ${watchdog_timeout_ms} -gt 0; then " \
+ "wdt dev watchdog at 40610000; " \
+ "wdt start ${watchdog_timeout_ms}; " \
+ "echo Watchdog started, timeout ${watchdog_timeout_ms} ms; " \
+ "fi\0"
+
/* U-Boot general configuration */
#define EXTRA_ENV_IOT2050_BOARD_SETTINGS \
"usb_pgood_delay=900\0"
@@ -43,6 +51,7 @@
#define CFG_EXTRA_ENV_SETTINGS \
DEFAULT_LINUX_BOOT_ENV \
BOOTENV \
+ WATCHDOG_ENV \
EXTRA_ENV_IOT2050_BOARD_SETTINGS
#include <configs/ti_armv7_common.h>
--
2.35.3
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