[PATCH] ARM: dts: at91: enable watchdog for SAMA5D3 Xplained
Michael Opdenacker
michael.opdenacker at bootlin.com
Thu Dec 9 07:45:40 PST 2021
Like on the SAMA5D2 and SAMA5D4 Xplained boards,
enable the watchdog device on the SAMA5D3 Xplained board.
As explained on drivers/watchdog/at91sam9_wdt.c,
for the watchdog driver to work in Linux, you need to make sure
that the bootstrap / bootloader doesn't disable the watchdog,
as the Watchdog Timer Mode Register can be only written to once.
Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>
---
arch/arm/boot/dts/at91-sama5d3_xplained.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/at91-sama5d3_xplained.dts b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
index d72c042f2850..440eccc9eb38 100644
--- a/arch/arm/boot/dts/at91-sama5d3_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d3_xplained.dts
@@ -79,6 +79,10 @@ timer1: timer at 1 {
};
};
+ watchdog: watchdog at fffffe40 {
+ status = "okay";
+ };
+
i2c0: i2c at f0014000 {
pinctrl-0 = <&pinctrl_i2c0_pu>;
status = "okay";
--
2.25.1
More information about the linux-arm-kernel
mailing list