Where in dts file one should define IORESOURCES_(IO|MEM)?

Where in dts file one should define IORESOURCES_(IO|MEM)?

[Subodh Nijsure]

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I have read the Documentation/powerpc/booting-without-of.txt and I am still
not clear on how manifest constants in platform_get_resource() get
translated to items in dts file.
 
Example:
 
in drivers/ide/legacy/ide_platform.c there is code that looks like this.
 
 
        res_base = platform_get_resource(pdev, IORESOURCE_IO, 0);
        res_alt = platform_get_resource(pdev, IORESOURCE_IO, 1);
 
        if (!res_base || !res_alt) {
                res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
                res_alt = platform_get_resource(pdev, IORESOURCE_MEM, 1);

If I want to specify IORESOURCE_MEM (0) and IORESOURCE_MEM ( 1) addresses in
my board specific what statements do I need to include in my dts file?
 
I have tried including them in memory {} section of dts and that doesn't
work.
 
Would appreciate help/pointer.
 
 
/Subodh Nijsure
(Standard Disclaimers Apply) 

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Re: Where in dts file one should define IORESOURCES_(IO|MEM)?

[Scott Wood]

Subodh Nijsure wrote:
> in drivers/ide/legacy/ide_platform.c there is code that looks like this.
>  
>  
>         res_base = platform_get_resource(pdev, IORESOURCE_IO, 0);
>         res_alt = platform_get_resource(pdev, IORESOURCE_IO, 1);
>  
>         if (!res_base || !res_alt) {
>                 res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>                 res_alt = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> If I want to specify IORESOURCE_MEM (0) and IORESOURCE_MEM ( 1) 
> addresses in my board specific what statements do I need to include in 
> my dts file?

They would be the first and second "reg" resources of the relevant 
device node.

For IDE, you probably want drivers/ata/pata_of_platform.c rather than 
the above driver.

> I have tried including them in memory {} section of dts and that doesn't 
> work.

No, that's for *memory*, not device registers.

-Scott