summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt')
-rw-r--r--Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt100
1 files changed, 0 insertions, 100 deletions
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
deleted file mode 100644
index c7674d0267a3..000000000000
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
+++ /dev/null
@@ -1,100 +0,0 @@
-* Renesas Clock Pulse Generator / Module Standby and Software Reset
-
-On Renesas ARM SoCs (SH/R-Mobile, R-Car, RZ), the CPG (Clock Pulse Generator)
-and MSSR (Module Standby and Software Reset) blocks are intimately connected,
-and share the same register block.
-
-They provide the following functionalities:
- - The CPG block generates various core clocks,
- - The MSSR block provides two functions:
- 1. Module Standby, providing a Clock Domain to control the clock supply
- to individual SoC devices,
- 2. Reset Control, to perform a software reset of individual SoC devices.
-
-Required Properties:
- - compatible: Must be one of:
- - "renesas,r7s9210-cpg-mssr" for the r7s9210 SoC (RZ/A2)
- - "renesas,r8a7743-cpg-mssr" for the r8a7743 SoC (RZ/G1M)
- - "renesas,r8a7744-cpg-mssr" for the r8a7744 SoC (RZ/G1N)
- - "renesas,r8a7745-cpg-mssr" for the r8a7745 SoC (RZ/G1E)
- - "renesas,r8a77470-cpg-mssr" for the r8a77470 SoC (RZ/G1C)
- - "renesas,r8a774a1-cpg-mssr" for the r8a774a1 SoC (RZ/G2M)
- - "renesas,r8a774b1-cpg-mssr" for the r8a774a1 SoC (RZ/G2N)
- - "renesas,r8a774c0-cpg-mssr" for the r8a774c0 SoC (RZ/G2E)
- - "renesas,r8a7790-cpg-mssr" for the r8a7790 SoC (R-Car H2)
- - "renesas,r8a7791-cpg-mssr" for the r8a7791 SoC (R-Car M2-W)
- - "renesas,r8a7792-cpg-mssr" for the r8a7792 SoC (R-Car V2H)
- - "renesas,r8a7793-cpg-mssr" for the r8a7793 SoC (R-Car M2-N)
- - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2)
- - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3)
- - "renesas,r8a7796-cpg-mssr" for the r8a77960 SoC (R-Car M3-W)
- - "renesas,r8a77961-cpg-mssr" for the r8a77961 SoC (R-Car M3-W+)
- - "renesas,r8a77965-cpg-mssr" for the r8a77965 SoC (R-Car M3-N)
- - "renesas,r8a77970-cpg-mssr" for the r8a77970 SoC (R-Car V3M)
- - "renesas,r8a77980-cpg-mssr" for the r8a77980 SoC (R-Car V3H)
- - "renesas,r8a77990-cpg-mssr" for the r8a77990 SoC (R-Car E3)
- - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3)
-
- - reg: Base address and length of the memory resource used by the CPG/MSSR
- block
-
- - clocks: References to external parent clocks, one entry for each entry in
- clock-names
- - clock-names: List of external parent clock names. Valid names are:
- - "extal" (r7s9210, r8a7743, r8a7744, r8a7745, r8a77470, r8a774a1,
- r8a774b1, r8a774c0, r8a7790, r8a7791, r8a7792, r8a7793,
- r8a7794, r8a7795, r8a77960, r8a77961, r8a77965, r8a77970,
- r8a77980, r8a77990, r8a77995)
- - "extalr" (r8a774a1, r8a774b1, r8a7795, r8a77960, r8a77961, r8a77965,
- r8a77970, r8a77980)
- - "usb_extal" (r8a7743, r8a7744, r8a7745, r8a77470, r8a7790, r8a7791,
- r8a7793, r8a7794)
-
- - #clock-cells: Must be 2
- - For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
- and a core clock reference, as defined in
- <dt-bindings/clock/*-cpg-mssr.h>.
- - For module clocks, the two clock specifier cells must be "CPG_MOD" and
- a module number, as defined in the datasheet.
-
- - #power-domain-cells: Must be 0
- - SoC devices that are part of the CPG/MSSR Clock Domain and can be
- power-managed through Module Standby should refer to the CPG device
- node in their "power-domains" property, as documented by the generic PM
- Domain bindings in
- Documentation/devicetree/bindings/power/power-domain.yaml.
-
- - #reset-cells: Must be 1
- - The single reset specifier cell must be the module number, as defined
- in the datasheet.
-
-
-Examples
---------
-
- - CPG device node:
-
- cpg: clock-controller@e6150000 {
- compatible = "renesas,r8a7795-cpg-mssr";
- reg = <0 0xe6150000 0 0x1000>;
- clocks = <&extal_clk>, <&extalr_clk>;
- clock-names = "extal", "extalr";
- #clock-cells = <2>;
- #power-domain-cells = <0>;
- #reset-cells = <1>;
- };
-
-
- - CPG/MSSR Clock Domain member device node:
-
- scif2: serial@e6e88000 {
- compatible = "renesas,scif-r8a7795", "renesas,scif";
- reg = <0 0xe6e88000 0 64>;
- interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cpg CPG_MOD 310>;
- clock-names = "fck";
- dmas = <&dmac1 0x13>, <&dmac1 0x12>;
- dma-names = "tx", "rx";
- power-domains = <&cpg>;
- resets = <&cpg 310>;
- };