[U-Boot-Users] CF Access in 8540

[Wolfgang Denk]

In message <200409251842.21281.v.sudhakar at gdatech.co.in> you wrote:
> 
> In Uboot ,I saw that the offset for CFG_ATA_DATA is defined as follows.

You are wrong. There is no such definition in the whole U-Boot code.

> Can anyone explain thsi whay we need to specify the offset as this..or we have 
> to specify in different manner.
> 
> /* Offset for data I/O			*/
> #define CFG_ATA_DATA_OFFSET	(CFG_PCMCIA_MEM_SIZE+320)
> /* Offset for normal register accesses	*/
> #define CFG_ATA_REG_OFFSET	(2*CFG_PCMCIA_MEM_SIZE*320)

These definitions are obvuiously wrong and connot work. I don;t  know
where you got them from, but this is not part of the U-Boot code.

As for your question: try to figure out how address decoding for  the
IDE controller register works.

Best regards,

Wolfgang Denk

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Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
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