[PATCH v3 3/5] powerpc: wii.dts: Expose HW_SRNPROT on this platform

[Emmanuel Gil Peyrot]

This Hollywood register isn’t properly understood, but can allow or
reject access to the SRAM, which we need to set for RTC usage if it
isn’t previously set correctly beforehand.

See https://wiibrew.org/wiki/Hardware/Hollywood_Registers#HW_SRNPROT

Signed-off-by: Emmanuel Gil Peyrot <linkmauve at linkmauve.fr>
---
 arch/powerpc/boot/dts/wii.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts
index c5720fdd0686..34d9732d5910 100644
--- a/arch/powerpc/boot/dts/wii.dts
+++ b/arch/powerpc/boot/dts/wii.dts
@@ -175,6 +175,11 @@ PIC1: pic1 at d800030 {
 			interrupts = <14>;
 		};
 
+		srnprot at d800060 {
+			compatible = "nintendo,hollywood-srnprot";
+			reg = <0x0d800060 0x4>;
+		};
+
 		GPIO: gpio at d8000c0 {
 			#gpio-cells = <2>;
 			compatible = "nintendo,hollywood-gpio";
-- 
2.34.1