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[ts-7000] Re: TS-7400 DIO from kernel space

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Subject: [ts-7000] Re: TS-7400 DIO from kernel space
From: Alexander Clouter <>
Date: Fri, 14 Mar 2008 11:05:04 +0000
Hi,

basement_mobile2004 <> [20080313 13:41:06 -0000]:
>
> I'm trying to access DIO registers from kernel space but it
> redirects the address to upper addresses.
>
> [snipped]
> 
> Result:
> Unable to handle kernel paging request at virtual address 72000000
> pgd = c511c000
> [72000000] *pgd=00000000, *pmd = 00000000
>
don't get excited, I'm curious about the answer to this too.  I have no idea 
about physical and virtual memory; however I would have expected the macros
__phys_to_virt() and __virt_to_phys() to have helped me.

Once I know this secret, the regular rtc-m48t86.c driver in the linux kernel 
will work along with (hopefully) the orion_nand.c MTD driver.

A plea to the Clued(tm) out there....pointers please.  :)

Cheers

Alex

-- 
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