Messages in this thread | | | From | Robin Getz <> | Subject | Re: [patch] split MMC_CAP_4_BIT_DATA | Date | Sat, 12 Jan 2008 08:02:37 -0500 |
| |
On Fri 11 Jan 2008 12:52, Robin Getz pondered: > On Fri 11 Jan 2008 04:35, Pierre Ossman pondered: > > On Fri, 11 Jan 2008 04:08:53 -0500 > > "Mike Frysinger" <vapier.adi@gmail.com> wrote: > > > > > On Jan 11, 2008 3:40 AM, Pierre Ossman <drzeus-mmc@drzeus.cx> wrote: > > > > So it's far more probable that you've misdiagnosed your error than > > this being the actual problem. > > > > > > the guys who design the silicon are telling us it doesnt work. our > > > tests show it not working. i'm not sure what else you want here. > > > > > > > More information. You have not provided any speculation as to why it > > doesn't work, or what you've done to figure it out. > > I have been trying to get the detailed information from the hardware > (silicon designer) guy about why he believes support for 4-bit MMC is > not there, but I have not heard back yet. > > As soon as I hear from them - and either understand why 4-bit MMC doesn't > work, or if the Blackfin docs are incorrect (either is OK outcome) - I will > let you know.
According to the HW folks - it is exactly as Pierre indicated - in theory it should work, 4-bit MMC requires usage of different set of commands as compared to 4-bit SD, so it should be just software - although no one has tested it yet.
So I guess this is back on Bryan/Cliff to make work....
Thanks for pushing back.
-Robin
| |