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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/marvell,mvebu-core-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell MVEBU SoC core clock
maintainers:
- Andrew Lunn <andrew@lunn.ch>
- Gregory Clement <gregory.clement@bootlin.com>
description: >
Marvell MVEBU SoCs usually allow to determine core clock frequencies by
reading the Sample-At-Reset (SAR) register. The core clock consumer should
specify the desired clock by having the clock ID in its "clocks" phandle cell.
The following is a list of provided IDs and clock names on Armada 370/XP:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU clock)
2 = nbclk (L2 Cache clock)
3 = hclk (DRAM control clock)
4 = dramclk (DDR clock)
The following is a list of provided IDs and clock names on Armada 375:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU clock)
2 = l2clk (L2 Cache clock)
3 = ddrclk (DDR clock)
The following is a list of provided IDs and clock names on Armada 380/385:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU clock)
2 = l2clk (L2 Cache clock)
3 = ddrclk (DDR clock)
The following is a list of provided IDs and clock names on Armada 39x:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU clock)
2 = nbclk (Coherent Fabric clock)
3 = hclk (SDRAM Controller Internal Clock)
4 = dclk (SDRAM Interface Clock)
5 = refclk (Reference Clock)
The following is a list of provided IDs and clock names on 98dx3236:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU clock)
2 = ddrclk (DDR clock)
3 = mpll (MPLL Clock)
The following is a list of provided IDs and clock names on Kirkwood and Dove:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU0 clock)
2 = l2clk (L2 Cache clock derived from CPU0 clock)
3 = ddrclk (DDR controller clock derived from CPU0 clock)
The following is a list of provided IDs and clock names on Orion5x:
0 = tclk (Internal Bus clock)
1 = cpuclk (CPU0 clock)
2 = ddrclk (DDR controller clock derived from CPU0 clock)
properties:
compatible:
enum:
- marvell,armada-370-core-clock
- marvell,armada-375-core-clock
- marvell,armada-380-core-clock
- marvell,armada-390-core-clock
- marvell,armada-xp-core-clock
- marvell,dove-core-clock
- marvell,kirkwood-core-clock
- marvell,mv88f5181-core-clock
- marvell,mv88f5182-core-clock
- marvell,mv88f5281-core-clock
- marvell,mv88f6180-core-clock
- marvell,mv88f6183-core-clock
- marvell,mv98dx1135-core-clock
- marvell,mv98dx3236-core-clock
reg:
maxItems: 1
'#clock-cells':
const: 1
clock-output-names:
description: Overwrite default clock output names.
required:
- compatible
- reg
- '#clock-cells'
additionalProperties: false
|
