Unable to access PCMCIA/CF Card in Common Memory Mode (neewbie)

Gururaja Hebbar K R gururajakr at sanyo.co.in
Fri May 18 02:37:40 EDT 2007

Dear all,

 I am working on a Custom Built Variant of ARM Versatile Board. We have
a PCMCIA/CF Module integrated in Processor. This have a single  Memory
Space of 128k Shared Between Attribute Memory, Common Memory & TrueIDE
Mode. It has Register Setting to Select any one of Attribute memory,
Common  Memory, IO Memory & TrueIDE Modes. Same Memory Range is Made
available as per Register Settings. It has a single Interrupt for all CF

I am able to read from the CF Card CIS Data & Sectors/MBR in Standalone
code from Attribute Memory & Common Memory. 
working on Linux Version with latest pcmciautils 0.14
installed. I modified Atmel & Omap CF Code to match our board.

after booting I get an error as -->

ide-cs: ide_register() at 0xc2802000 & 0xc280200e, irq 22 failed

I have installed pcmciautil tools but none is running on startup. is
their any scripts or tools that i need to call at system startup.
i have enabled udev but not installed/running any udev tools. 

for the reference i have attached req outputs

1.. Linux version (root at linux_box) (gcc version 4.1.1
(CodeSourcery ARM Sou
rcery G++ 2006q3-26)) #28 Fri May 18 17:52:50 EDT 2007
CPU: ARM926EJ-S [41069264] revision 4 (ARMv5TEJ), cr=00053177

<skip unneeded data>

Serial: AMBA PL011 UART driver
dev:fd: ttyAMA0 at MMIO 0x101fd000 (irq = 12) is a AMBA/PL011
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
<--- important ones
ide: Assuming 50MHz system bus speed for PIO modes; override with
idebus=xx                       <--- important ones
69xx_cf: on irq 22
<--- important ones

<skip unneeded data>

RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Freeing init memory: 76K
init started: BusyBox v1.5.0 (2007-05-15 20:54:57 EDT) multi-call binary
starting pid 156, tty '/dev/ttyAMA0': '/etc/init.d/rcS'
Starting System Init for 69xx

BusyBox v1.5.0 (2007-05-15 20:54:57 EDT) Built-in shell (ash)
Enter 'help' for a list of built-in commands.


pccard: PCMCIA card inserted into slot 0
pcmcia: registering new device pcmcia0.0
ide-cs: ide_register() at 0xc2802000 & 0xc280200e, irq 22 failed

# lspcmcia
Socket 0 Bridge:        [69xx_cf]     (bus ID: 69xx_cf)
Socket 0 Device 0:      [-- no driver --]       (bus ID: 0.0)

# pccardctl ident
Socket 0:
  product info: "HITACHI", "FLASH", "5.0", ""
  manfid: 0x0007, 0x0000
  function: 4 (fixed disk)

# pccardctl info

# pccardctl status
Socket 0:
  3.3V 16-bit PC Card
  Subdevice 0 (function 0) [unbound]

# lspcmcia -v
Socket 0 Bridge:        [69xx_cf]     (bus ID: 69xx_cf)
        Configuration:  state: on       ready: yes
                        Voltage: 3.3V Vcc: 3.3V Vpp: 0.0V
                        Available IRQs: none
Socket 0 Device 0:      [-- no driver --]       (bus ID: 0.0)
        Configuration:  state: on
        Product Name:   HITACHI FLASH 5.0
        Identification: manf_id: 0x0007 card_id: 0x0000
                        function: 4 (fixed disk)
                        prod_id(1): "HITACHI" (0xf4f43949)
                        prod_id(2): "FLASH" (0x9eb86aae)
                        prod_id(3): "5.0" (0x0f7e1efb)
                        prod_id(4): --- (---)

#cat /proc/ioports                ---> no results

# cat /proc/iomem
00000000-01ffffff : System RAM
  0001b000-00167fff : Kernel text
  00168000-00188017 : Kernel data
101a0000-101bffff : 69xx_cf
  101a0000-101a1fff : 69xx_cf
101e0000-101e0fff : dev:e0
101e4000-101e4fff : dev:e4
101e5000-101e5fff : dev:e5
101e6000-101e6fff : dev:e6
101e7000-101e7fff : dev:e7
101e8000-101e8fff : dev:e8
101f8000-101f8fff : dev:f8
  101f8000-101f8fff : mmci-pl18x
101fd000-101fdfff : dev:fd
  101fd000-101fdfff : uart-pl011

----> I have enabled below mentioned configs in kernel configuration. 


Kindly let me know if i need change any codes. As i am able read in
Standalone mode from Common Memory what chanegs shld i do to read from
io Space.


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