linux-kernel - [PATCH 0/2] Add support for S805X based P241 Reference Design board

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Date:   Thu,  5 Jul 2018 11:50:41 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        martin.blumenstingl@...glemail.com
Subject: [PATCH 0/2] Add support for S805X based P241 Reference Design board

The Amlogic P241 board is the Reference Design board for the S805X
variant of the Amlogic Meson GXL SoC family.

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

The P241 board has the following features :
- 1GiB DDR4 Memory
- HDMI Connector with CEC
- A/V jack with Stereo Audio and CVBS
- 10/100 Ethernet
- 2x USB2.0 Type-A
- On-board WiFi SDIO Module
- On-board eMMC storage
- Infraread Received
- Factory Reset button
- UART connector

Neil Armstrong (2):
  dt-bindings: amlogic: Add support for GXL S805X and the P241 board
  ARM64: dts: add S805X based P241 board

 Documentation/devicetree/bindings/arm/amlogic.txt  |   6 +
 arch/arm64/boot/dts/amlogic/Makefile               |   1 +
 .../boot/dts/amlogic/meson-gxl-s805x-p241.dts      | 218 +++++++++++++++++++++
 3 files changed, 225 insertions(+)
 create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s805x-p241.dts

-- 
2.7.4