Hi Shengyu, Michael, On Mon, Nov 21, 2022 at 2:13 PM Shengyu Qu <wiagn233@xxxxxxxxxxx> wrote: > > 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@xxxxxxxxxxxxxx> 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. > > In any case, if there's some kind of issue it must be in the driver, and not in the device tree binding (i.e. this patchset). Regards, Ezequiel
