? 2016/8/7 22:44, Heiko Stuebner ??: > Hi Shawn, > > Am Sonntag, 7. August 2016, 11:40:21 schrieb Shawn Lin: >> On 2016/7/19 3:46, Heiko St?bner wrote: >>> Am Montag, 18. Juli 2016, 23:32:32 schrieb Randy Li: >>>> The Firefly RK3288 Reload is a combination Firefly rk3288 core board >>>> with the Reload baseboard. Add a dtsi for the Firefly rk3288 core >>>> which can be included into the dts for the various baseboards >>>> in the future and dts for Reload base board. >>>> >>>> Currently supported are serial console, wired networking, eMMC and >>>> SD storage, SPFIF, IR receiver, LEDs, SDIO wifi and USB. But only >>>> the OTG could work on the host mode now, the other USB host can't >>>> work now, additional patches are required. >>>> >>>> Signed-off-by: Randy Li <ayaka at soulik.info> >>>> Acked-by: Rob Herring <robh at kernel.org> >>> >>> applied [0], after some minor reordering - please double check. >>> >>> Also, while the branch is named 4.8 this will only go into 4.9, as the >>> merge- window supposedly opens on the weekend. >> >> Sorry for the noise here:), but I find there is some mmc stuff >> which confuse me. Maybe Randy could elaborate more? >> >> Your sdmmc claims to support UHS-I mode like sd-uhs-sdr104, etc, which >> will ask dw_mmc to switch vqmmc from 3V3 to 1V8 after sending CMD11. >> >> But the vqmmc is vccio_sd which is fixed as 3V3? :) > > so far we have only been able to achieve UHS speeds on devices based on the > rk808 pmic (I had sucess on veyron and popmetal). The act8846-based boards > seem to have some issue when trying to do the switch to 1.8V, resulting in > mmc errors and the mmc-core switching back to 3.3V. Interesting.... I will have a look at it this weekend with Randy face 2 face.... > > I think this might be caused by a bug in the act8846 driver or some dts > mistake. But so far nobody had the time and enthusiasm to investigate :-) > > > Heiko > > _______________________________________________ > Linux-rockchip mailing list > Linux-rockchip at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-rockchip > -- Best Regards Shawn Lin
