[U-Boot] [PATCH v2 09/14] DM: WDT: Convert WDT driver to use DM/DTS (including SYSRESET)

Lukasz Majewski lukma at denx.de
Tue Sep 3 14:38:45 UTC 2019


This commit enables support for CONFIG_WDT in the U-Boot proper. Moreover,
the SYSRESET_WATCHDOG driver is used to support 'reset' command.

As SPL is not yet ready for DM conversion, the CONFIG_HW_WATCHDOG is
enabled for it. This allows the legacy SPL code to work properly.

Signed-off-by: Lukasz Majewski <lukma at denx.de>
---

Changes in v2: None

 arch/arm/dts/imx6q-display5-u-boot.dtsi | 5 +++++
 configs/display5_defconfig              | 3 +++
 include/configs/display5.h              | 6 +++++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/dts/imx6q-display5-u-boot.dtsi b/arch/arm/dts/imx6q-display5-u-boot.dtsi
index b942218b7ab8..aa660b5aeb65 100644
--- a/arch/arm/dts/imx6q-display5-u-boot.dtsi
+++ b/arch/arm/dts/imx6q-display5-u-boot.dtsi
@@ -31,6 +31,11 @@
 	chosen {
 		stdout-path = &uart5;
 	};
+
+	wdt-reboot {
+		compatible = "wdt-reboot";
+		wdt = <&wdog1>;
+	};
 };
 
 &i2c3 {
diff --git a/configs/display5_defconfig b/configs/display5_defconfig
index 3719eb40d5ea..a3062854d89c 100644
--- a/configs/display5_defconfig
+++ b/configs/display5_defconfig
@@ -49,6 +49,7 @@ CONFIG_CMD_PART=y
 # CONFIG_CMD_PINMUX is not set
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_WDT=y
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
@@ -107,5 +108,7 @@ CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_MXC_UART=y
 CONFIG_SPI=y
 CONFIG_MXC_SPI=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
 CONFIG_I2C_EDID=y
 CONFIG_IMX_WATCHDOG=y
diff --git a/include/configs/display5.h b/include/configs/display5.h
index a3cb62367c4c..e66bb65c21c6 100644
--- a/include/configs/display5.h
+++ b/include/configs/display5.h
@@ -348,7 +348,11 @@
 
 /* Watchdog */
 #define CONFIG_WATCHDOG_TIMEOUT_MSECS   15000
-
+#if defined(CONFIG_SPL_BUILD)
+#undef CONFIG_WDT
+#undef CONFIG_WATCHDOG
+#define CONFIG_HW_WATCHDOG
+#endif
 /* ENV config */
 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 #define CONFIG_ENV_SIZE		(SZ_64K)
-- 
2.11.0



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