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authorEmmanuel Gil Peyrot <linkmauve@linkmauve.fr>2021-08-01 09:38:20 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2021-08-13 22:04:25 +1000
commitb11748e693166679acc13c8a4328a71efe1d4a89 (patch)
tree0763c538e16175261bb8e7539fafa2907fd4d46f /arch/powerpc/boot
parent1bce54250045443d55659b0b23be51e87ed2b919 (diff)
downloadlinux-b11748e693166679acc13c8a4328a71efe1d4a89.tar.bz2
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
Diffstat (limited to 'arch/powerpc/boot')
-rw-r--r--arch/powerpc/boot/dts/wii.dts8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/boot/dts/wii.dts b/arch/powerpc/boot/dts/wii.dts
index aaa381da1906..c5fb54f8cc02 100644
--- 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 {