Question on the pcmcia module for ppc

Matthew Locke mlocke at
Sat Jan 5 06:40:06 EST 2002

Liu HongXun-a16975 wrote:

> Hi, all,
> I worked on the PCMCIA module for my MPC 857T based board.
> I downloaded the pcmcia-cs 3.1.29 and modified the file modules/m8xx_pcmcia.c.
> My board uses the SLOT B. What I did are just like the (F)ADS and RPXLite.
> I compiled the resulted pcmcia module and loaded them into linux kernel using "insmod".
> 1. insmod pcmcia_core.o
> 2. insmod m8xx_pcmcia.o
> 3. insmod ds.o
> Here comes the problem.
> When I inserted ds.o, the driver tells me that "cs: socket 0 timed out during reset"
> I looked through the source code and the debug info.
> I found that a lot of the same messages as follows:
> GetStatus(0) = 0x190
> ...
> Such info come from m8xx_pcmcia.c/m8xx_get_status. It seems that someone
> is not satisfied with the above return value and " get status " again and again.
> Then it quit.
> Any suggestions are highly appreciated!
> Thanks a lot

I'm not familiar with the 857T pcmcia, perhaps the timing is different.
 Check the timing calculation functions against the 857T UM.

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