ARM: dts: aspeed: everest: 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>
Link: https://lore.kernel.org/r/20210329150020.13632-21-eajames@linux.ibm.com
Signed-off-by: Joel Stanley <joel@jms.id.au>

diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
index 52d2aba..5f8dd3c 100644 (file)
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
@@ -2308,6 +2308,20 @@
        use-ncsi;
 };
 
+&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>;