[U-Boot-Users] pagetable / BDI2000 question

[Wolfgang Denk]

In message <loom.20041002T163523-199 at post.gmane.org> you wrote:
> This is not specifically a u-boot question, but involves some things that 
> knowledgeable u-boot person may have insight into.

Actually this is 100% off topic here.

> initialization our system bridge chip (Marvell 64360 / DiscoveryII) is 
> remapped to a new virtual address (via the ioremap() kernel call).  At that 
> point the new virtual address returns bad data.
> 
> Physical address is: 0xF1000000
> Original virtual address:  0xF1000000
> Remapped virtual address:  0xEF5F0000

0xEF5F0000 is obviously a bogus address. How  exactly  did  you  call
ioremap() ?

And why do you have (and need) an "original virtual address" at all?

> Here is the key question:  How is it possible that the same location in memory 
> accessed via the BDI2000 and accessed programmatically return DIFFERENT values.

The BDI2000 (through the telnet interface) uses physical addresses.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
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