projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 603311ba | 1 | DT bindings for the Renesas R-Car (RZ/G) System Controller |
| a85fff3b GU |
2 | |
| 3 | == System Controller Node == | |
| 4 | ||
| 603311ba SS |
5 | The R-Car (RZ/G) System Controller provides power management for the CPU cores |
| 6 | and various coprocessors. | |
| a85fff3b GU |
7 | |
| 8 | Required properties: | |
| 9 | - compatible: Must contain exactly one of the following: | |
| 603311ba | 10 | - "renesas,r8a7743-sysc" (RZ/G1M) |
| 08ea4a30 | 11 | - "renesas,r8a7744-sysc" (RZ/G1N) |
| 141723e0 | 12 | - "renesas,r8a7745-sysc" (RZ/G1E) |
| 964f7c0d | 13 | - "renesas,r8a77470-sysc" (RZ/G1C) |
| 7f0e99cc | 14 | - "renesas,r8a774a1-sysc" (RZ/G2M) |
| 39dc9a10 | 15 | - "renesas,r8a774c0-sysc" (RZ/G2E) |
| a85fff3b GU |
16 | - "renesas,r8a7779-sysc" (R-Car H1) |
| 17 | - "renesas,r8a7790-sysc" (R-Car H2) | |
| 18 | - "renesas,r8a7791-sysc" (R-Car M2-W) | |
| 19 | - "renesas,r8a7792-sysc" (R-Car V2H) | |
| 20 | - "renesas,r8a7793-sysc" (R-Car M2-N) | |
| 21 | - "renesas,r8a7794-sysc" (R-Car E2) | |
| 22 | - "renesas,r8a7795-sysc" (R-Car H3) | |
| 2ff1bf77 | 23 | - "renesas,r8a7796-sysc" (R-Car M3-W) |
| a527709b | 24 | - "renesas,r8a77965-sysc" (R-Car M3-N) |
| bab9b2a7 | 25 | - "renesas,r8a77970-sysc" (R-Car V3M) |
| 41d6d8bd | 26 | - "renesas,r8a77980-sysc" (R-Car V3H) |
| 44b12d43 | 27 | - "renesas,r8a77990-sysc" (R-Car E3) |
| eed17c42 | 28 | - "renesas,r8a77995-sysc" (R-Car D3) |
| a85fff3b GU |
29 | - reg: Address start and address range for the device. |
| 30 | - #power-domain-cells: Must be 1. | |
| 31 | ||
| 32 | ||
| 33 | Example: | |
| 34 | ||
| 35 | sysc: system-controller@e6180000 { | |
| 36 | compatible = "renesas,r8a7791-sysc"; | |
| 37 | reg = <0 0xe6180000 0 0x0200>; | |
| 38 | #power-domain-cells = <1>; | |
| 39 | }; | |
| 40 | ||
| 41 | ||
| 42 | == PM Domain Consumers == | |
| 43 | ||
| 44 | Devices residing in a power area must refer to that power area, as documented | |
| 45 | by the generic PM domain bindings in | |
| 46 | Documentation/devicetree/bindings/power/power_domain.txt. | |
| 47 | ||
| 48 | Required properties: | |
| 49 | - power-domains: A phandle and symbolic PM domain specifier, as defined in | |
| 50 | <dt-bindings/power/r8a77*-sysc.h>. | |
| 51 | ||
| 52 | ||
| 53 | Example: | |
| 54 | ||
| 55 | L2_CA15: cache-controller@0 { | |
| 56 | compatible = "cache"; | |
| 57 | power-domains = <&sysc R8A7791_PD_CA15_SCU>; | |
| 58 | cache-unified; | |
| 59 | cache-level = <2>; | |
| 60 | }; |