Thread (5 messages) flat view 5 messages, 3 authors, 2018-07-16

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

From: robh@kernel.org (Rob Herring)
Date: 2018-07-16 22:04:40
Also in: linux-amlogic, linux-devicetree, lkml

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 <redacted>
---
 Documentation/devicetree/bindings/arm/amlogic.txt | 6 ++++++
 1 file changed, 6 insertions(+)
Reviewed-by: Rob Herring <robh@kernel.org>
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