On Wed, Oct 18, 2017 at 11:00 PM, Joonas Kylmälä <joonas.kylm...@iki.fi> wrote: > Hi, > > Chen-Yu Tsai: >> mmc1 only has 1 possible pinmux setting. > > What if someone is using the MMC with bus width 1 and then using the > remaining 3 pins for something else?
I would very much like to see such a design. Currently the devices we see all follow Allwinner's reference design, with only minor modifications. As such, mmc1 is used exclusively for connecting SDIO-based WiFi modules. If such a radical(?) design is done, the vendor can always add a "mmc1-1bit-pins" setting and override the default. ChenYu
