projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a85fff3b GU |
1 | DT bindings for the Renesas R-Car System Controller |
| 2 | ||
| 3 | == System Controller Node == | |
| 4 | ||
| 5 | The R-Car System Controller provides power management for the CPU cores and | |
| 6 | various coprocessors. | |
| 7 | ||
| 8 | Required properties: | |
| 9 | - compatible: Must contain exactly one of the following: | |
| 10 | - "renesas,r8a7779-sysc" (R-Car H1) | |
| 11 | - "renesas,r8a7790-sysc" (R-Car H2) | |
| 12 | - "renesas,r8a7791-sysc" (R-Car M2-W) | |
| 13 | - "renesas,r8a7792-sysc" (R-Car V2H) | |
| 14 | - "renesas,r8a7793-sysc" (R-Car M2-N) | |
| 15 | - "renesas,r8a7794-sysc" (R-Car E2) | |
| 16 | - "renesas,r8a7795-sysc" (R-Car H3) | |
| 17 | - reg: Address start and address range for the device. | |
| 18 | - #power-domain-cells: Must be 1. | |
| 19 | ||
| 20 | ||
| 21 | Example: | |
| 22 | ||
| 23 | sysc: system-controller@e6180000 { | |
| 24 | compatible = "renesas,r8a7791-sysc"; | |
| 25 | reg = <0 0xe6180000 0 0x0200>; | |
| 26 | #power-domain-cells = <1>; | |
| 27 | }; | |
| 28 | ||
| 29 | ||
| 30 | == PM Domain Consumers == | |
| 31 | ||
| 32 | Devices residing in a power area must refer to that power area, as documented | |
| 33 | by the generic PM domain bindings in | |
| 34 | Documentation/devicetree/bindings/power/power_domain.txt. | |
| 35 | ||
| 36 | Required properties: | |
| 37 | - power-domains: A phandle and symbolic PM domain specifier, as defined in | |
| 38 | <dt-bindings/power/r8a77*-sysc.h>. | |
| 39 | ||
| 40 | ||
| 41 | Example: | |
| 42 | ||
| 43 | L2_CA15: cache-controller@0 { | |
| 44 | compatible = "cache"; | |
| 45 | power-domains = <&sysc R8A7791_PD_CA15_SCU>; | |
| 46 | cache-unified; | |
| 47 | cache-level = <2>; | |
| 48 | }; |