于 2018年8月20日 GMT+08:00 下午8:00:46, Maxime Ripard <maxime.ripard@xxxxxxxxxxx> 写到: >Hi! > >On Wed, Aug 08, 2018 at 06:36:56PM +0800, Icenowy Zheng wrote: >> 在 2018-07-26四的 14:41 +0200，Maxime Ripard写道： >> > On Wed, Jul 25, 2018 at 12:36:55AM +0800, Icenowy Zheng wrote: >> > > Banana Pi designs the BPi M2 Berry board to be software >compatible >> > > with >> > > BPi M2 Ultra, >> > >> > Do you have a reference for this? >> > >> > > so it's based on M2 Ultra with some function cuts, including: >> > > >> > > - 2048MiB DRAM -> 1024MiB (this should be proceed by the >> > > bootloader); >> > > - dropped a LED; >> > > - dropped eMMC; >> > > - dropped USB2 and connect USB1 to a 4-port HUB. >> > >> > Is it the exhaustive list? >> >> I have asked Mikey from Sinovoip, and he has agreed this. >> >> Here's a list provided by him, which covers some things I forgot: >> - 2GiB -> 1GiB >> - no eMMC >> - no onboard microphone >> - no IR >> - no charging (and power jack to USB) >> - USB change >> - one less LED >> >> Should I add this to the device tree's comment? > >Not really, because... > >> > >> > I'm a bit reluctant to merge that kind of patches usually, since >that >> > would also imply that each time someone will commit something to >the >> > M2-Ultra, it would automatically apply to the M2-Berry, without any >> > easy way to tell and / or test. > >... this still applies. But I think few developers will have both boards at the same time. > >Maxime
