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List:       linux-pcmcia
Subject:    CF custom implementation
From:       Kiran Thota <Kiran_Thota () pmc-sierra ! com>
Date:       2005-05-05 18:13:50
Message-ID: 9DFF23E1E33391449FDC324526D1F259024380C4 () sjc1exm02 ! pmc_nt ! nt ! pmc-sierra ! bc ! ca
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Hello!,
  I am working on a MIPS-based processor SoC which has a custom CF implementation \
over Local Bus. The CF doesnt support IO mode, interrupts,  32-bit support.
It has limited register support [no interface registers to reset the CF]. I am using \
2.6.10 from linux-mips. I have already written a PCMCIA/CF socket socket for the \
same. The goal is to use the CF cards as memoy devices. Advise me on the path to \
take:

PCMCIA/CF ->CS/DS -> IDE [I found a patch to make IDE work in polled mode]
PCMCIA/CF -> CS/DS -> MTD [drivers/mtc/maps/pcmciamtd.c]

I am currently using Lexar and Hitachi Compact Flash cards.
The CIS can be read and when the Linux boots up and I invoke cardmgr [v3.2.8], it \
sees the device as  ATA/IDE Fixed Disk [Func = 4 (Fixed Disk) ]
Is there a way to force it to come up in memory only mode? Please suggest.

Thanks,
Kiran


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