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1Broadcom BCM63138 DSL System-on-a-Chip device tree bindings2-----------------------------------------------------------3 4Boards compatible with the BCM63138 DSL System-on-a-Chip should have the5following properties:6 7Required root node property:8 9compatible: should be "brcm,bcm63138"10 11An optional Boot lookup table Device Tree node is required for secondary CPU12initialization as well as a 'resets' phandle to the correct PMB controller as13defined in reset/brcm,bcm63138-pmb.txt for this secondary CPU, and an14'enable-method' property.15 16Required properties for the Boot lookup table node:17- compatible: should be "brcm,bcm63138-bootlut"18- reg: register base address and length for the Boot Lookup table19 20Optional properties for the primary CPU node:21- enable-method: should be "brcm,bcm63138"22 23Optional properties for the secondary CPU node:24- enable-method: should be "brcm,bcm63138"25- resets: phandle to the relevant PMB controller, one integer indicating the internal26 bus number, and a second integer indicating the address of the CPU in the PMB27 internal bus number.28 29Example:30 31 cpus {32 cpu@0 {33 compatible = "arm,cortex-a9";34 reg = <0>;35 ...36 enable-method = "brcm,bcm63138";37 };38 39 cpu@1 {40 compatible = "arm,cortex-a9";41 reg = <1>;42 ...43 enable-method = "brcm,bcm63138";44 resets = <&pmb0 4 1>;45 };46 };47 48 bootlut: bootlut@8000 {49 compatible = "brcm,bcm63138-bootlut";50 reg = <0x8000 0x50>;51 };52 53=======54reboot55------56Two nodes are required for software reboot: a timer node and a syscon-reboot node.57 58Timer node:59 60- compatible: Must be "brcm,bcm6328-timer", "syscon"61- reg: Register base address and length62 63Syscon reboot node:64 65See Documentation/devicetree/bindings/power/reset/syscon-reboot.yaml for the66detailed list of properties, the two values defined below are specific to the67BCM6328-style timer:68 69- offset: Should be 0x34 to denote the offset of the TIMER_WD_TIMER_RESET register70 from the beginning of the TIMER block71- mask: Should be 1 for the SoftRst bit.72 73Example:74 75 timer: timer@80 {76 compatible = "brcm,bcm6328-timer", "syscon";77 reg = <0x80 0x3c>;78 };79 80 reboot {81 compatible = "syscon-reboot";82 regmap = <&timer>;83 offset = <0x34>;84 mask = <0x1>;85 };86