[PATCH 2/2] arm64: dts: rockchip: Add RGA2 support to rk356x

[Shengyu Qu]

Hi,
I remember someone said that rga2 has only 32bit address space but not having a mmu or mmu needs to be configured. Better ask by yourself in pine64 discord since I'm not sure about that.

Shengyu 


于 2022年11月22日 GMT+08:00 上午12:41:16, Michael Tretter <m.tretter at pengutronix.de> 写到:
>Hi,
>
>On Tue, 22 Nov 2022 00:01:28 +0800, Shengyu Qu wrote:
>> Someone from pine64 discord found that RGA2 doesn't work properly on over
>> 
>> 4GB memory RK3568 devices. Are you sure current driver works now?
>
>I am absolutely sure that the driver works on a 2GB ROCK3A board.
>Unfortunately, I don't have a device with 4GB or more memory and I cannot test
>the driver with such a device.
>
>As the documentation for the RGA2 is the same in the TRM of the rk3288 and
>rk3568, I would guess that the driver doesn't work on a rk3288 with more than
>4GB (if there is such a thing) either and the driver needs to be fixed for
>both SoCs.
>
>Michael