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Hello,

On Dec 28, 2006, at 15:09, Richard K=E4stner wrote:

> Here come my questions:
> 1. Can I / how can I access two different IO-spaces in one driver?
>   to start the adc, I need to set a bit in DeviceCfg (on chip=20
> register) and
>   only thereafter, I may access the adc registers

You can bus_space_map whatever you want.

>   as can be seen, I gave the 'epadc' a rather huge size, to be able to=20=

> access
>   ADC-Registers and DeviceCfg: 'epadc0 at epsoc0 addr=20
> 0x80900000-0x80a3ffff'
>   For me this appears quite brute force - or is it ok, to map the=20
> entire IO
>   space ? (hard to believe)

Nothing says you have to bus_space_map the whole thing or even only one=20=

block - just map the range(s) you need and run with them.

have fun
Michael
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