powerpc: wii.dts: Reduce the size of the control area

This is wrong, but needed in order to avoid overlapping ranges with the
OTP area added in the next commit.  A refactor of this part of the
device tree is needed: according to Wiibrew[1], this area starts at
0x0d800000 and spans 0x400 bytes (that is, 0x100 32-bit registers),
encompassing PIC and GPIO registers, amongst the ones already exposed in
this device tree, which should become children of the control@d800000
node.

[1] https://wiibrew.org/wiki/Hardware/Hollywood_Registers

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210801073822.12452-4-linkmauve@linkmauve.fr

diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts
index aaa381da19066b0d5c34b3ddbe2d469cda594cb2..c5fb54f8cc02ad4c6e0ff25320dd35d7975ad62e 100644 (file)
--- a/arch/powerpc/boot/dts/wii.dts
+++ b/arch/powerpc/boot/dts/wii.dts
@@ -216,7 +216,13 @@
 
                control@d800100 {
                        compatible = "nintendo,hollywood-control";
-                       reg = <0x0d800100 0x300>;
+                       /*
+                        * Both the address and length are wrong, according to
+                        * Wiibrew this should be <0x0d800000 0x400>, but it
+                        * requires refactoring the PIC1 and GPIO nodes before
+                        * changing that.
+                        */
+                       reg = <0x0d800100 0xa0>;
                };
 
                disk@d806000 {