[RFC PATCH v2 13/13] ARM: DT: kernel: DT cpu node bindings update

Tony Prisk linux at prisktech.co.nz
Mon Apr 22 22:46:36 EDT 2013


On 23/04/13 03:27, Lorenzo Pieralisi wrote:
> +
> +=====================================
> +cpus and cpu node bindings definition
> +=====================================
> +
> +The ARM architecture, in accordance with the ePAPR, requires the cpus and cpu
> +nodes to be present and contain the properties described below.
> +
> +- cpus node
> +
> +	Description: Container of cpu nodes
> +
> +	The node name must be "cpus".
> +
> +	A cpus node must define the following properties:
> +
> +	- #address-cells
> +		Usage: required
> +		Value type: <u32>
> +		Definition: must be set to 1 for 32-bit systems and 2 for
> +			    64-bit systems
> +	- #size-cells
> +		Usage: required
> +		Value type: <u32>
> +		Definition: must be set to 0
> +
...
> +Example 3 (ARM 1176 uniprocessor 32-bit system):
> +
> +	cpus {
> +		cpu {
> +			device_type = "cpu";
> +			compatible = "arm,arm1176";
> +		};
> +	};
> +
This example is missing the required #size-cells and #address-cells 
properties.

Regards
Tony P



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