[PATCH] of/flattree: Early "find node by alias" function

Pawel Moll pawel.moll at arm.com
Tue Nov 8 22:57:54 EST 2011


Hello again,

On Fri, 2011-10-21 at 16:16 +0100, Pawel Moll wrote:
> This patch adds a function for finding a node in flat tree
> based on an alias name. It can be used in early boot code.
> 
> Typical use case is a situation when early code needs data
> from a arbitrary tree node, eg. base address of "serial0" to
> initialise debug output or some sort of ID register to
> probe hardware.
> 
> The tree source could look like that:
> 
> / {
> 	aliases {
> 		serial0 = &uart0;
> 	};
> 
> 	uart0: uart at f0001000 {
> 		reg = <0xf0001000 0x1000>;
> 	};
> }
> 
> Signed-off-by: Pawel Moll <pawel.moll at arm.com>

Any further comments? Makes sense? Not at all? ;-)

Cheers!

Pawel





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