Hi Eric, > Eric Anholt <eric@xxxxxxxxxx> hat am 3. Januar 2017 um 19:27 geschrieben: > > > Stefan Wahren <stefan.wahren@xxxxxxxx> writes: > > > Since the mmc module on bcm2835 neither provide a capabilities register nor > > free documentation we must rely on the downstream implementation [1]. > > Yeah, caps reg is wired to 0, but it can do high speed. > > Since we're VDD_330 only, I'm not sure the driver type flags do > anything, but I'm still good with having consistency. yes, the driver type flags currently have no benefit. > > Reviewed-by: Eric Anholt <eric@xxxxxxxxxx> > > Interested in porting over the DMA support? :) AFAIK the sdhci doesn't support external DMA (required for bcm2835). So DMA support would result in a new driver, which i'm currently not interested. But i've prepared a fixup patch series for the sdhost driver i want to send to Gerd. > > I also noticed that the emmc wrapper module claims it can run with a > clock from 50-100mhz, and the arasan says it can run at up to 50, 52, or > 208mhz depending on SD/MMC mode. Could we get a boost from running the > module at a higher clock rate? Sorry, i can't follow. Do you mean DDR mode? -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
