ARM: dts: aspeed: rainier: Enable fan watchdog

Set watchdog 1 to pulse the fan watchdog circuit that drives the FAULT
pin of the MAX31785, resulting in fans running at full speed, if at
any point the BMC stops pulsing it, such as a BMC reboot at runtime.
Enable watchdog 2 for BMC reboots.

Signed-off-by: Matthew Barth <msbarth@linux.ibm.com>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20210329150020.13632-11-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index 8ffb8677ae9d45bf58a9d417ee00ec5d173442d0..7efc0b426f0a6bb3e4ffbf8e20e942dc76263a75 100644 (file)
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -1726,6 +1726,20 @@
        };
 };
 
+&wdt1 {
+       aspeed,reset-type = "none";
+       aspeed,external-signal;
+       aspeed,ext-push-pull;
+       aspeed,ext-active-high;
+
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_wdtrst1_default>;
+};
+
+&wdt2 {
+       status = "okay";
+};
+
 &xdma {
        status = "okay";
        memory-region = <&vga_memory>;