Re: [Gumstix-users] MMC not recognized by Linux

[Craig H. <cr...@gu...>]

Was the MMC card in there when linux booted?  There's a bug in the  
linux driver where it doesn't re-scan new MMC cards (I think it might  
be my bug, because I'm not triggering an interrupt properly on card  
insertion or something), so you have to manually modprobe -r then re- 
modprobe the "pxamci" module in order for it to notice new cards.  If  
the MMC card is in there when linux boots, then when pxamci is loaded  
the first time (at boot), then it'll get noticed, and the partition  
table scanned.

C

On Mar 28, 2006, at 6:29 PM, Charles.Scheffold@VerizonWireless.com  
wrote:

> Just got my basix 400 and I'm trying to mount an old 64MB  
> SimpleTech MMC card that was laying around. The usual mount command  
> fails:
>
> # mount /mnt/mmc
> mount: Mounting /dev/mmc/mmc0/part1 on /mnt/mmc failed: No such  
> device or address
>
> So, I looked at the output from dmesg and there is no mention of  
> MMC other than the loading of mmc_block module.  Running mmcinit  
> from the boot prompt gives the following result:
>
> GUM> mmcinit
> Trying MMC
> ***********************************************
> *   MMC found. Card desciption is:            *
> *   Manufacturer ID = 000036                  *
> *   HW/FW Revision = 0x01 0x08                *
> *   Product Name =      46                    *
> *   Serial Number = dcc718                    *
> *   Month =  6          Year = 2001           *
> ***********************************************
> CSD_STRUCTURE = 1, MMC_PROT=2
>   TAAC=e (1000000ns), NSAC=1
>   TRAN = 2a (20000000bps)
>   CCC=ff, READ_BL_LEN=9 (512)
>   C_SIZE=7a7, C_SIZE_MULT=4 (64)
>   TOTAL MMC SIZE=64192512
>   MMC_RDTO = 314
>
> Can someone figure out what is going on here? The hardware is  
> clearly seeing the MMC card but Linux doesn't seem to have a clue.
>
> thanks
> Charles
>
>
> The information contained in this message and any attachment may be
> proprietary, confidential, and privileged or subject to the work
> product doctrine and thus protected from disclosure.  If the reader
> of this message is not the intended recipient, or an employee or
> agent responsible for delivering this message to the intended
> recipient, you are hereby notified that any dissemination,
> distribution or copying of this communication is strictly prohibited.
> If you have received this communication in error, please notify me
> immediately by replying to this message and deleting it and all
> copies and backups thereof.  Thank you.
>
> <winmail.dat>