[PATCH 1/2] dt-bindings: amlogic: Add support for GXL S805X and the P241 board

Neil Armstrong
2018-07-05T09:50:42Z

The S805X is a variant of the Amlogic Meson GXL SoC family with the
following physical limitations :
- No SDCard interface
- No GPIOCLK pins
- No USB OTG ID pin (but Gadget feature can stil be forced)
- No 5V regulator
- Reduced ADC inputs (only ADC0 and ADC1)
- GPIODV_26, GPIOAO_3, GPIOAO_4, GPIOAO_5, GPIOAO_6, GPIOX_14,
GPIOX_15, GPIOH_3 are no more exposed on the package

Amlogic exposes the following SW limitations :
- HDMI max resolution should be 1080p60, VPU clock should be downgraded
- Video Decoding should be limited to 1080p60, VDEC clock should be downgraded
- CPU speed should be limited by SCPI OPP table to 1.2GHz
- DRAM interface is limited to DDR4 16bit up to 1GiB

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
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 6988056..849834c 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.txt
+++ b/Documentation/devicetree/bindings/arm/amlogic.txt
@@ -41,6 +41,10 @@ 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 S805X SoC shall have the following properties:
+ Required root node property:
+ compatible: "amlogic,s805x", "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";
@@ -79,6 +83,8 @@ Board compatible values (alphabetically, grouped by SoC):
- "amlogic,p230" (Meson gxl s905d)
- "amlogic,p231" (Meson gxl s905d)

+ - "amlogic,p241" (Meson gxl s805x)
+
- "amlogic,q200" (Meson gxm s912)
- "amlogic,q201" (Meson gxm s912)
- "khadas,vim2" (Meson gxm s912)
--
2.7.4