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author | Arnd Bergmann <arnd@arndb.de> | 2015-12-12 00:30:48 +0100 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2015-12-12 00:30:48 +0100 |
commit | dd270f24fb52d88cf6bfceb36266ad42e3d77ce9 (patch) | |
tree | 12e25a7a0fe9fea67b4c51c5fcee3a2dfbfa03dd /Documentation | |
parent | Merge tag 'mvebu-dt-4.5-1' of git://git.infradead.org/linux-mvebu into next/dt (diff) | |
parent | ARM: dts: Add SolidRun Armada 388 Clearfog A1 DT file (diff) | |
download | linux-dd270f24fb52d88cf6bfceb36266ad42e3d77ce9.tar.xz linux-dd270f24fb52d88cf6bfceb36266ad42e3d77ce9.zip |
Merge tag 'mvebu-dt-4.5-2' of git://git.infradead.org/linux-mvebu into next/dt
Merge "mvebu dt for 4.5 (part 2)" from Gregory CLEMENT:
- Fix Armada 388 GP dts
- Add clock related to PMU for Dove
- Add SolidRun Armada 388 Clearfog A1 dts
* tag 'mvebu-dt-4.5-2' of git://git.infradead.org/linux-mvebu:
ARM: dts: Add SolidRun Armada 388 Clearfog A1 DT file
dt-bindings: add Marvell PMU documentation
ARM: dts: dove: add Dove divider clocks
dt-bindings: add Marvell core PLL and clock divider PMU documentation
ARM: mvebu: remove duplicated regulator definition in Armada 388 GP
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/clock/dove-divider-clock.txt | 28 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/soc/dove/pmu.txt | 56 |
2 files changed, 84 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/dove-divider-clock.txt b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt new file mode 100644 index 000000000000..e3eb0f657c5e --- /dev/null +++ b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt @@ -0,0 +1,28 @@ +PLL divider based Dove clocks + +Marvell Dove has a 2GHz PLL, which feeds into a set of dividers to provide +high speed clocks for a number of peripherals. These dividers are part of +the PMU, and thus this node should be a child of the PMU node. + +The following clocks are provided: + +ID Clock +------------- +0 AXI bus clock +1 GPU clock +2 VMeta clock +3 LCD clock + +Required properties: +- compatible : shall be "marvell,dove-divider-clock" +- reg : shall be the register address of the Core PLL and Clock Divider + Control 0 register. This will cover that register, as well as the + Core PLL and Clock Divider Control 1 register. Thus, it will have + a size of 8. +- #clock-cells : from common clock binding; shall be set to 1 + +divider_clk: core-clock@0064 { + compatible = "marvell,dove-divider-clock"; + reg = <0x0064 0x8>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/soc/dove/pmu.txt b/Documentation/devicetree/bindings/soc/dove/pmu.txt new file mode 100644 index 000000000000..edd40b796b74 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/dove/pmu.txt @@ -0,0 +1,56 @@ +Device Tree bindings for Marvell PMU + +Required properties: + - compatible: value should be "marvell,dove-pmu". + May also include "simple-bus" if there are child devices, in which + case the ranges node is required. + - reg: two base addresses and sizes of the PM controller and PMU. + - interrupts: single interrupt number for the PMU interrupt + - interrupt-controller: must be specified as the PMU itself is an + interrupt controller. + - #interrupt-cells: must be 1. + - #reset-cells: must be 1. + - domains: sub-node containing domain descriptions + +Optional properties: + - ranges: defines the address mapping for child devices, as per the + standard property of this name. Required when compatible includes + "simple-bus". + +Power domain descriptions are listed as child nodes of the "domains" +sub-node. Each domain has the following properties: + +Required properties: + - #power-domain-cells: must be 0. + +Optional properties: + - marvell,pmu_pwr_mask: specifies the mask value for PMU power register + - marvell,pmu_iso_mask: specifies the mask value for PMU isolation register + - resets: points to the reset manager (PMU node) and reset index. + +Example: + + pmu: power-management@d0000 { + compatible = "marvell,dove-pmu"; + reg = <0xd0000 0x8000>, <0xd8000 0x8000>; + interrupts = <33>; + interrupt-controller; + #interrupt-cells = <1>; + #reset-cells = <1>; + + domains { + vpu_domain: vpu-domain { + #power-domain-cells = <0>; + marvell,pmu_pwr_mask = <0x00000008>; + marvell,pmu_iso_mask = <0x00000001>; + resets = <&pmu 16>; + }; + + gpu_domain: gpu-domain { + #power-domain-cells = <0>; + marvell,pmu_pwr_mask = <0x00000004>; + marvell,pmu_iso_mask = <0x00000002>; + resets = <&pmu 18>; + }; + }; + }; |