On Thu, May 05, 2016 at 01:48:51PM -0700, Chris Brand wrote: > Add binding document for Broadcom BCM23550 SoC. > > BCM23550 has a Cluster Dormant Control IP block that holds cores > in an idle state. Introduce a new CPU enable method in which the CDC is > accessed to bring the core online. > > Signed-off-by: Chris Brand <chris.brand@xxxxxxxxxxxx> > --- > .../bindings/arm/bcm/brcm,bcm23550-cpu-method.txt | 36 ++++++++++++++++++++++ > .../devicetree/bindings/arm/bcm/brcm,bcm23550.txt | 15 +++++++++ > Documentation/devicetree/bindings/arm/cpus.txt | 1 + > 3 files changed, 52 insertions(+) > create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt > create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550.txt > > diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt > new file mode 100644 > index 000000000000..b1b16872bbca > --- /dev/null > +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm23550-cpu-method.txt > @@ -0,0 +1,36 @@ > +Broadcom Kona Family CPU Enable Method > +-------------------------------------- > +This binding defines the enable method used for starting secondary > +CPUs in the following Broadcom SoCs: > + BCM23550 > + > +The enable method is specified by defining the following required > +properties in the "cpu" device tree node: > + - enable-method = "brcm,bcm23550-cpu-method"; "-cpu-method" is a bit redundant. brcm,bc23550 is probably sufficient. > + - secondary-boot-reg = <...>; > + > +The secondary-boot-reg property is a u32 value that specifies the > +physical address of the register used to request the ROM holding pen > +code release a secondary CPU. The value written to the register is > +formed by encoding the target CPU id into the low bits of the > +physical start address it should jump to. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
