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-rw-r--r--Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt76
1 files changed, 76 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt
index bd49987a8812..b82b6a0ae6f7 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm63138.txt
@@ -7,3 +7,79 @@ following properties:
Required root node property:
compatible: should be "brcm,bcm63138"
+
+An optional Boot lookup table Device Tree node is required for secondary CPU
+initialization as well as a 'resets' phandle to the correct PMB controller as
+defined in reset/brcm,bcm63138-pmb.txt for this secondary CPU, and an
+'enable-method' property.
+
+Required properties for the Boot lookup table node:
+- compatible: should be "brcm,bcm63138-bootlut"
+- reg: register base address and length for the Boot Lookup table
+
+Optional properties for the primary CPU node:
+- enable-method: should be "brcm,bcm63138"
+
+Optional properties for the secondary CPU node:
+- enable-method: should be "brcm,bcm63138"
+- resets: phandle to the relevant PMB controller, one integer indicating the internal
+ bus number, and a second integer indicating the address of the CPU in the PMB
+ internal bus number.
+
+Example:
+
+ cpus {
+ cpu@0 {
+ compatible = "arm,cotex-a9";
+ reg = <0>;
+ ...
+ enable-method = "brcm,bcm63138";
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a9";
+ reg = <1>;
+ ...
+ enable-method = "brcm,bcm63138";
+ resets = <&pmb0 4 1>;
+ };
+ };
+
+ bootlut: bootlut@8000 {
+ compatible = "brcm,bcm63138-bootlut";
+ reg = <0x8000 0x50>;
+ };
+
+=======
+reboot
+------
+Two nodes are required for software reboot: a timer node and a syscon-reboot node.
+
+Timer node:
+
+- compatible: Must be "brcm,bcm6328-timer", "syscon"
+- reg: Register base address and length
+
+Syscon reboot node:
+
+See Documentation/devicetree/bindings/power/reset/syscon-reboot.txt for the
+detailed list of properties, the two values defined below are specific to the
+BCM6328-style timer:
+
+- offset: Should be 0x34 to denote the offset of the TIMER_WD_TIMER_RESET register
+ from the beginning of the TIMER block
+- mask: Should be 1 for the SoftRst bit.
+
+Example:
+
+ timer: timer@80 {
+ compatible = "brcm,bcm6328-timer", "syscon";
+ reg = <0x80 0x3c>;
+ };
+
+ reboot {
+ compatible = "syscon-reboot";
+ regmap = <&timer>;
+ offset = <0x34>;
+ mask = <0x1>;
+ };