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Diffstat (limited to 'target/linux/bcm53xx/patches-4.4/033-dt-bindings-add-SMP-enable-method-for-Broadcom-NSP.patch')
-rw-r--r--target/linux/bcm53xx/patches-4.4/033-dt-bindings-add-SMP-enable-method-for-Broadcom-NSP.patch70
1 files changed, 70 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-4.4/033-dt-bindings-add-SMP-enable-method-for-Broadcom-NSP.patch b/target/linux/bcm53xx/patches-4.4/033-dt-bindings-add-SMP-enable-method-for-Broadcom-NSP.patch
new file mode 100644
index 0000000000..ad560261d3
--- /dev/null
+++ b/target/linux/bcm53xx/patches-4.4/033-dt-bindings-add-SMP-enable-method-for-Broadcom-NSP.patch
@@ -0,0 +1,70 @@
+From fa20071c74be69a1d84df85e5d1e72a40a156b89 Mon Sep 17 00:00:00 2001
+From: Kapil Hali <kapilh@broadcom.com>
+Date: Tue, 1 Dec 2015 11:24:05 -0500
+Subject: [PATCH] dt-bindings: add SMP enable-method for Broadcom NSP
+
+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.
+
+Signed-off-by: Kapil Hali <kapilh@broadcom.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ .../bindings/arm/bcm/brcm,nsp-cpu-method.txt | 39 ++++++++++++++++++++++
+ Documentation/devicetree/bindings/arm/cpus.txt | 1 +
+ 2 files changed, 40 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txt
+@@ -0,0 +1,39 @@
++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";
++ - secondary-boot-reg = <...>;
++
++The secondary-boot-reg property is a u32 value that specifies the
++physical address of the register which should hold the common
++entry point for a secondary CPU. This entry is cpu node specific
++and should be added per cpu. E.g., in case of NSP (BCM58625) which
++is a dual core CPU SoC, this entry should be added to cpu1 node.
++
++
++Example:
++ cpus {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ enable-method = "brcm,bcm-nsp-smp";
++
++ cpu0: cpu@0 {
++ device_type = "cpu";
++ compatible = "arm,cortex-a9";
++ next-level-cache = <&L2>;
++ reg = <0>;
++ };
++
++ cpu1: cpu@1 {
++ device_type = "cpu";
++ compatible = "arm,cortex-a9";
++ next-level-cache = <&L2>;
++ reg = <1>;
++ secondary-boot-reg = <0xffff042c>;
++ };
++ };
+--- a/Documentation/devicetree/bindings/arm/cpus.txt
++++ b/Documentation/devicetree/bindings/arm/cpus.txt
+@@ -190,6 +190,7 @@ nodes to be present and contain the properties described below.
+ "allwinner,sun6i-a31"
+ "allwinner,sun8i-a23"
+ "arm,psci"
++ "brcm,bcm-nsp-smp"
+ "brcm,brahma-b15"
+ "marvell,armada-375-smp"
+ "marvell,armada-380-smp"