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Date: Wed, 31 Aug 2011 00:04:29 -0700
From: Joe Knapp <joeknapp@keensupport.net>
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To: linux-mtd@lists.infradead.org
Subject: Mount SRAM card without CIS
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Dear MTD team,

I have been searching for many hours now on how to enable a 256 KByte
PCMCIA SRAM card. Some details:

Linux 2.6.35-30-generic #56-Ubuntu SMP Mon Jul 11 20:01:08 UTC 2011
x86_64 GNU/Linux

lspci:
03:06.0 CardBus bridge: Texas Instruments PCI1225 (rev 01)
03:06.1 CardBus bridge: Texas Instruments PCI1225 (rev 01)

dmesg after inserting the card and running /lib/udev/pcmcia-socket-startup:
[142469.220134] pcmcia_socket pcmcia_socket0: pccard: PCMCIA card
inserted into slot 0
[142483.684063] pcmcia_socket pcmcia_socket0: cs: memory probe
0x0c0000-0x0fffff: excluding 0xc0000-0xcffff 0xe0000-0xfffff
[142483.684191] pcmcia_socket pcmcia_socket0: cs: memory probe
0xa0000000-0xa0ffffff: excluding 0xa0000000-0xa0ffffff
[142483.684308] pcmcia_socket pcmcia_socket0: cs: memory probe
0x60000000-0x60ffffff: excluding 0x60000000-0x60ffffff
[142483.684542] pcmcia_socket pcmcia_socket0: cs: memory probe
0x0d0000-0x0dffff: clean.

lspcmcia:
Socket 0 Bridge:        [yenta_cardbus]         (bus ID: 0000:03:06.0)
        Configuration:  state: on       ready: yes
                        Voltage: 5.0V Vcc: 5.0V Vpp: 5.0V

pccardctl info:
PRODID_1=""
PRODID_2=""
PRODID_3=""
PRODID_4=""
MANFID=0000,0000
FUNCID=255


I have successfully used this HW to mount a CompactFlash device via a
PCMCIA to CF adapter, and the SRAM card works correctly in some other
test equipment. So, I believe that the HW is OK.

I have tried some variations to /etc/pcmcia/config, including:
device "pcmciamtd" needs_mtd
  class "memory" module "pcmciamtd"

card "Anonymous Memory"
  anonymous
#  bind "memory_cs"
  bind "pcmciamtd"

card "Memory Card"
  function memory_card
#  bind "memory_cs"
  bind "pcmciamtd"

Can you please provide some clues as to the current method to enable a
SRAM card without CIS?

Thank you in advance,

Joe Knapp