81 lines
2.3 KiB
YAML
81 lines
2.3 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/clock/microchip,mpfs-clkcfg.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Microchip PolarFire Clock Control Module
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Daire McNamara <daire.mcnamara@microchip.com>
|
||
|
|
|
||
|
|
description: |
|
||
|
|
Microchip PolarFire clock control (CLKCFG) is an integrated clock controller,
|
||
|
|
which gates and enables all peripheral clocks.
|
||
|
|
|
||
|
|
This device tree binding describes 33 gate clocks. Clocks are referenced by
|
||
|
|
user nodes by the CLKCFG node phandle and the clock index in the group, from
|
||
|
|
0 to 32.
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
const: microchip,mpfs-clkcfg
|
||
|
|
|
||
|
|
reg:
|
||
|
|
items:
|
||
|
|
- description: |
|
||
|
|
clock config registers:
|
||
|
|
These registers contain enable, reset & divider tables for the, cpu,
|
||
|
|
axi, ahb and rtc/mtimer reference clocks as well as enable and reset
|
||
|
|
for the peripheral clocks.
|
||
|
|
- description: |
|
||
|
|
mss pll dri registers:
|
||
|
|
Block of registers responsible for dynamic reconfiguration of the mss
|
||
|
|
pll
|
||
|
|
|
||
|
|
clocks:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
'#clock-cells':
|
||
|
|
const: 1
|
||
|
|
description: |
|
||
|
|
The clock consumer should specify the desired clock by having the clock
|
||
|
|
ID in its "clocks" phandle cell.
|
||
|
|
See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
|
||
|
|
PolarFire clock IDs.
|
||
|
|
|
||
|
|
resets:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
'#reset-cells':
|
||
|
|
description:
|
||
|
|
The AHB/AXI peripherals on the PolarFire SoC have reset support, so from
|
||
|
|
CLK_ENVM to CLK_CFM. The reset consumer should specify the desired
|
||
|
|
peripheral via the clock ID in its "resets" phandle cell.
|
||
|
|
See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
|
||
|
|
PolarFire clock IDs.
|
||
|
|
const: 1
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- clocks
|
||
|
|
- '#clock-cells'
|
||
|
|
|
||
|
|
additionalProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
# Clock Config node:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/clock/microchip,mpfs-clock.h>
|
||
|
|
soc {
|
||
|
|
#address-cells = <2>;
|
||
|
|
#size-cells = <2>;
|
||
|
|
clkcfg: clock-controller@20002000 {
|
||
|
|
compatible = "microchip,mpfs-clkcfg";
|
||
|
|
reg = <0x0 0x20002000 0x0 0x1000>, <0x0 0x3E001000 0x0 0x1000>;
|
||
|
|
clocks = <&ref>;
|
||
|
|
#clock-cells = <1>;
|
||
|
|
};
|
||
|
|
};
|