From c19e2b44cb0b6d643bc5629d410e72d1b0cc9fd9 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Sun, 18 Feb 2018 23:25:03 +0100 Subject: [PATCH] dt-bindings: arm: amlogic: Add support for GXL S905W and the P281 board - WiP S905W SoC is another SoC from the GXL family. It is a cost-reduced version of the S905X SoC. The following differences are known: - S905W supports HDMI resolutions up to 4k@30fps (while S905X support resolutions up to 4k@60fps) - the built-in video decoders of S905W decode up to 4k@30fps (while S905X supports decoding up to 4k@60fps) - CPU speed on S905W is limited to 1.2GHz (compared to 1.5GHz on S905X) - the DRAM interface on S905W is limited to 16-bit (GXL supports both, 16-bit and 32-bit) The P281 is a development board from Amlogic which uses the S905W SoC. It uses the same PCB layout as the S905D P231 board. TODO: - pin-compatible??? - max GPU frequency is 650M??? Signed-off-by: Martin Blumenstingl --- Documentation/devicetree/bindings/arm/amlogic.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt index f747f47922c55d..0819fe15c807c1 100644 --- a/Documentation/devicetree/bindings/arm/amlogic.txt +++ b/Documentation/devicetree/bindings/arm/amlogic.txt @@ -37,6 +37,10 @@ Boards with the Amlogic Meson GXL S905D SoC shall have the following properties: Required root node property: compatible: "amlogic,s905d", "amlogic,meson-gxl"; +Boards with the Amlogic Meson GXL S905W SoC shall have the following properties: + Required root node property: + compatible: "amlogic,s905w", "amlogic,meson-gxl"; + Boards with the Amlogic Meson GXM S912 SoC shall have the following properties: Required root node property: compatible: "amlogic,s912", "amlogic,meson-gxm"; @@ -73,6 +77,8 @@ Board compatible values (alphabetically, grouped by SoC): - "amlogic,p230" (Meson gxl s905d) - "amlogic,p231" (Meson gxl s905d) + - "amlogic,p281" (Meson gxl s905w) + - "amlogic,q200" (Meson gxm s912) - "amlogic,q201" (Meson gxm s912) - "khadas,vim2" (Meson gxm s912)