[PATCH RESEND 1/4] dt-bindings: add SMP enable-method for Broadcom NSP
From: sbranden@broadcom.com (Scott Branden)
Date: 2015-11-05 20:57:34
Also in:
linux-devicetree, lkml
Hi Rob, On 15-11-05 12:48 PM, Rob Herring wrote:
On Thu, Nov 05, 2015 at 12:51:18AM -0500, Kapil Hali wrote:quoted
Add a compatible string "brcm,bcm-nsp-smp" for Broadcom's Northstar Plus CPU to the 32-bit ARM CPU device tree binding documentation file and create a new binding documentation for Northstar Plus CPU pen-release mechanism. Signed-off-by: Kapil Hali <redacted> --- .../bindings/arm/bcm/brcm,nsp-cpu-method.txt | 36 ++++++++++++++++++++++ Documentation/devicetree/bindings/arm/cpus.txt | 1 + 2 files changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txtdiff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txt new file mode 100644 index 0000000..8506da7 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txt@@ -0,0 +1,36 @@ +Broadcom Northstar Plus SoC CPU Enable Method +--------------------------------------------- +This binding defines the enable method used for starting secondary +CPUs in the following Broadcom SoCs: + BCM58522, BCM58525, BCM58535, BCM58622, BCM58623, BCM58625, BCM88312 + +The enable method is specified by defining the following required +properties in the "cpus" device tree node: + - enable-method = "brcm,bcm-nsp-smp";This is supposed to be per core.quoted
+ - secondary-boot-reg = <...>;What happens with more than 2 cores?
I'm pretty sure nothing - all of these SoCs have 1 or 2 cores. Regards, Scott