[PATCH 3/4] [MMC] mmc_spi: add polling support for thecarddetectline
G.Chen at freescale.com
Tue May 27 12:11:45 EST 2008
> -----Original Message-----
> From: Anton Vorontsov [mailto:avorontsov at ru.mvista.com]
> Sent: 2008?5?26? 23:38
> To: Chen Gong
> Cc: Kumar Gala; David Brownell; Pierre Ossman;
> linuxppc-dev at ozlabs.org;
> spi-devel-general at lists.sourceforge.net;
> linux-kernel at vger.kernel.org; Tabi Timur
> Subject: Re: [PATCH 3/4] [MMC] mmc_spi: add polling support
> for thecarddetectline
> On Thu, May 22, 2008 at 09:44:57PM +0800, Chen Gong wrote:
> > > > I want to know whether every card working well ? Because
> > > I'm working
> > > > For 83xx MMC-over-SPI support, the presented concrete
> > > methods I used
> > > > as you do, but only 256M card seems good, 512M or 1G/2G
> > > card all have
> > > > some problems
> > >
> > > So far I don't have cards larger than 256M. Will try to get one
> > > though.
> > >
> > Thanks, if you have any new test report pls contact me.
> Just tested with Apacer 1GB MicroSD (connected through dumb
> adapter), it works quite well here. I've successfully wrote
> 10 mb file onto ext2 formatted partition...
Oh, thanks for your info. The card I used is Kingston 1G SD card.
> > BTW, a fews days ago Joakim Tjernlund made a heavy fix for
> > spi_mpc83xx.c to resolve clock glitch. But it looks no any
> impact for
> > me, but maybe it has positive effect for you.
> Yup, I use it.
> Btw, which mmc driver are you using? The one from MPC8610HPCD
> BSP or mainline's mmc_spi?
:-( the mmc driver now in the MPC8610HPCD BSP is ported from uClinux
by me, it has many problems, because at that time MMC-over-SPI driver
doen't exist in the kernel.
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