[PATCH 2/7] arm: dt: zynq: Add 'cpus' node

Sören Brinkmann soren.brinkmann at xilinx.com
Tue Nov 12 13:06:05 EST 2013


On Mon, Nov 11, 2013 at 06:57:44PM +0000, Sudeep KarkadaNagesha wrote:
> On 08/11/13 21:21, Soren Brinkmann wrote:
> > Add a 'cpus' node to describe the CPU cores of Zynq.
> > 
> > Signed-off-by: Soren Brinkmann <soren.brinkmann at xilinx.com>
> > Acked-by: Peter Crosthwaite <peter.crosthwaite at xilinx.com>
> > ---
> >  arch/arm/boot/dts/zynq-7000.dtsi | 27 +++++++++++++++++++++++++++
> >  1 file changed, 27 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
> > index 27ebc1ba9671..37fc04525142 100644
> > --- a/arch/arm/boot/dts/zynq-7000.dtsi
> > +++ b/arch/arm/boot/dts/zynq-7000.dtsi
> > @@ -15,6 +15,33 @@
> >  / {
> >  	compatible = "xlnx,zynq-7000";
> >  
> > +	cpus {
> > +		#address-cells = <1>;
> > +		#size-cells = <0>;
> > +
> > +		cpu at 0 {
> > +			compatible = "arm,cortex-a9";
> > +			device_type = "cpu";
> > +			reg = <0>;
> > +			clocks = <&clkc 3>;
> > +			i-cache-size = <0x8000>;
> > +			i-cache-line-size = <0x20>;
> > +			d-cache-size = <0x8000>;
> > +			d-cache-line-size = <0x20>;
> 
> These cache properties can be identified through CCSIDR(Cache Size ID Registers)
> on ARMv7 Cortex implementations. It's better not to have these in DT if they can
> be identified runtime.
Sounds good to me. I'll go ahead an remove them.

	Thanks,
	Sören





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