On 2018/3/5 22:42, Heiko Stuebner wrote: > Hi Shawn, > > Am Montag, 5. M?rz 2018, 15:39:04 CET schrieb Shawn Lin: >> On 2018/3/2 20:20, Heiko Stuebner wrote: >>> From: Xiao Yao <xiaoyao at rock-chips.com> >>> >>> Disable IO function switching between sdmmc and jtag >>> for RK3128 SoCs. >>> >> >> I acked this on the vendor kernel tree, so FWIW: >> >> Reviewed-by: Shawn Lin <shawn.lin at rock-chips.com> >> >> Hope this is one of the final patches for that, as I would >> revive IO function switching between sdmmc and jtag for newer >> SoCs after addressing the problem from HW level. > > the main problem we had with that was that the mmc-subsystem > somehow definitly didn't like it when the controller pins where pulled > out from under it on card eject. Right, we had sort out it's timing revelant between mmc controller and the switching hw block. > > But of course, if you can get this solved by hw somehow, that > would be pretty cool :-) It is under extensively tested now, and seems quite positive. :) > > > Heiko > > > -- Best Regards Shawn Lin