From: Rodolfo Giometti <giometti@linux.it>
To: linux-mips@linux-mips.org
Subject: Re: au1100 MMC support
Date: Wed, 9 Aug 2006 17:44:42 +0200 [thread overview]
Message-ID: <20060809154442.GA13145@enneenne.com> (raw)
In-Reply-To: <20060809133240.GA9690@enneenne.com>
On Wed, Aug 09, 2006 at 03:32:40PM +0200, Rodolfo Giometti wrote:
>
> > mmc0: host does not support reading read-only switch. assuming write-enable.
> > mmc0: starting CMD2 arg 00000000 flags 00000067
> > mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: clock 450000Hz busmode 2 powermode 2 cs 0 Vdd 15 width 0
> > mmc0: starting CMD9 arg 019a0000 flags 00000007
> > mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000
> > mmc0: req done (CMD9): 1/0/0: 00000000 00000000 00000000 00000000
>
> Here is the problem! I get no answer to CMD9 (CSD request) due a
> timeout (sd0_status=0x3028080).
Fixed. Here the patch in file drivers/mmc/au1xmmc.c:
case MMC_RSP_R3:
mmccmd |= SD_CMD_RT_3;
break;
+ case MMC_RSP_R6:
+ mmccmd |= SD_CMD_RT_6;
+ break;
}
switch(cmd->opcode) {
However the driver is still not functional since read/write operations
on the MMC are broken. :'(
Ciao,
Rodolfo
--
GNU/Linux Solutions e-mail: giometti@enneenne.com
Linux Device Driver giometti@gnudd.com
Embedded Systems giometti@linux.it
UNIX programming phone: +39 349 2432127
prev parent reply other threads:[~2006-08-09 15:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-09 10:29 au1100 MMC support Rodolfo Giometti
2006-08-09 13:32 ` Rodolfo Giometti
2006-08-09 15:44 ` Rodolfo Giometti [this message]
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