tegrakernel/kernel/kernel-4.9/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt

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2022-02-16 09:13:02 -06:00
Marvell Armada AP806 System Controller
======================================
The AP806 is one of the two core HW blocks of the Marvell Armada 7K/8K
SoCs. It contains a system controller, which provides a number
registers giving access to numerous features: clocks, pin-muxing and
many other SoC configuration items. This DT binding allows to describe
this system controller.
The Device Tree node representing the AP806 system controller provides
a number of clocks:
- 0: clock of CPU cluster 0
- 1: clock of CPU cluster 1
- 2: fixed PLL at 1200 Mhz
- 3: MSS clock, derived from the fixed PLL
Required properties:
- compatible: must be:
"marvell,ap806-system-controller", "syscon"
- reg: register area of the AP806 system controller
- #clock-cells: must be set to 1
- clock-output-names: must be defined to:
"ap-cpu-cluster-0", "ap-cpu-cluster-1", "ap-fixed", "ap-mss"
Example:
syscon: system-controller@6f4000 {
compatible = "marvell,ap806-system-controller", "syscon";
#clock-cells = <1>;
clock-output-names = "ap-cpu-cluster-0", "ap-cpu-cluster-1",
"ap-fixed", "ap-mss";
reg = <0x6f4000 0x1000>;
};