Re: [PATCH RESEND 1/4] dt-bindings: add SMP enable-method for Broadcom NSP

From: Scott Branden
Date: Thu Nov 05 2015 - 15:57:38 EST

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:
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 <kapilh@xxxxxxxxxxxx>
.../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.txt

diff --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.

+ - secondary-boot-reg = <...>;

What happens with more than 2 cores?

I'm pretty sure nothing - all of these SoCs have 1 or 2 cores.

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