| Message ID | 1530784243-20823-2-git-send-email-narmstrong@baylibre.com |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | [1/2] dt-bindings: amlogic: Add support for GXL S805X and the P241 board | expand |
On Thu, Jul 05, 2018 at 11:50:42AM +0200, Neil Armstrong wrote: > 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(+) Reviewed-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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)
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(+)