8270 & Watchdog - early start - II

[samppa at sundmangroup.com]

>>> You still shouldn't use direct access with MMU enabled. Use the global
CPM
> mapping and the I/O access macros.

I understand, but I need to kick on the WDT before "cpm2_immr"
is initialized dur to timing constraints.

Cheers // Matias



> On Thursday 20 September 2007 12:06, Matias Sundman wrote:
>> Hi Guys,
>> The Software Service Register (SWSR) is 16-bit wide which Laurent
>> Pinchart [laurentp at cse-semaphore.com] so nicely pointed out for me.
>> So it actually works with;
>> *((volatile unsigned short*)(0xf001000e))=0x556c;
>> *((volatile unsigned short*)(0xf001000e))=0xaa39;
>
> You still shouldn't use direct access with MMU enabled. Use the global CPM
> mapping and the I/O access macros.
>
> out_be16(&cpm2_immr->im_siu_conf.siu_82xx.sc_swsr, 0x556c);
> out_be16(&cpm2_immr->im_siu_conf.siu_82xx.sc_swsr, 0xaa39);
>
> Best regards,
>
> --
> Laurent Pinchart
> CSE Semaphore Belgium
>
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> B-1410 Waterloo
> Belgium
>
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