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

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Date:   Wed, 11 Jul 2018 09:57:42 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Kevin Hilman <khilman@...libre.com>
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        martin.blumenstingl@...glemail.com
Subject: Re: [PATCH 0/2] Add support for S805X based P241 Reference Design
 board

On 10/07/2018 00:48, Kevin Hilman wrote:
> Neil Armstrong <narmstrong@...libre.com> writes:
> 
>> 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
> 
> Applied to v4.19/dt64.
> 
> The cover letter didn't say, but I assume this was at least boot tested
> on a p241 board?

Exact, it's boot tested on a p241 board.

Neil


> 
> Thanks,
> 
> Kevin
>