Hi Olliver, I have already test it a few weeks ago and definitely can say that 8-bit bus did not work on A20-Olinuxino-Lime2-eMMC with mainline kernel. See may post here <http://forum.armbian.com/index.php/topic/853-armbian-customization/page-2#entry7361> .
Best regards Chris On Wednesday, May 4, 2016 at 3:52:17 PM UTC+3, Olliver Schinagl wrote: > > Hey Radoslav, > > On 04-05-16 14:30, Radoslav Kolev wrote: > > 2016-05-03 10:25 GMT+03:00 Chen-Yu Tsai <[email protected] <javascript:>>: > >> On Tue, May 3, 2016 at 3:21 PM, Olliver Schinagl <[email protected] > <javascript:>> wrote: > >>>>> + bus-width = <4>; > >>>> Only 4 bits? We normally see eMMC with 8 bits. 4 bits are some kind > of > >>>> embedded SD card. > >>> On A20 as well? Our investigations so far have concluded that the A10 > and > >>> A20 have those pins not mapped out to pads. The IP does support it > however > >>> we assume. > >> You're right. My bad. First time A10/A20 sees eMMC support. > > I can't say anything about A10/A20, but I have a board with A13 and > > the same eMMC chip and it works fine in 8 bit mode. > Yep, sun5i actually brings them all out to pads, the A20 however does > not :( We first thought that the A20 would also be an 8bitter, because > the mmc IP appears to be the same as sun5i, but initial tests show it is > not. As for A10, it has older IP and it might not even support 8 bit > mode, let alone bring out the pins. > > But with A20's + eMMC being available via the lime2, others may repeat > my experiments! The lime2 is 8 bit connected. > > Olliver > > > > Regards, > > Radoslav > > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
