I have a PCMCIA CAM card on EN50221 standard.
The card is interfaced to BCM7324 on EBI lines.
Board detects the card,and it has to get initialised through proper sequence .The sequence follows :set Reset bit and Poll for Ready bit in command Register
The offset of Command Register is 0x1
the processor address pins and CAM address pins are interfaced as follows
Processor CAM Card
A3<------------------------>A2_CAM
A2<-------------------------->A1_CAM
A1<-------------------------->A0_CAM
........
processor does not show A0 .I suppose this is for even address alignement.
CAM memory map for command Register is
A0_CAM=1
A1_CAM=0
Hence to configure 0x1 offset(Command Register) i do
CHIP_SELECT=0x1A000000
*(ioremap(CHIP_SELECT+2,0x4) =value.
I think CHIP_SELECT+2 should select A0_CAM=1 ;
Am I right on this?
But when i read the command register value i don,t get correct value.
Can someone please tell me if i select the registers properly as
written above ? Or please suggest me something else to be done .
Warm Regards,
Vivian
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