142 lines
2.9 KiB
YAML
142 lines
2.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/rtc/st,stm32-rtc.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: STMicroelectronics STM32 Real Time Clock
|
|
|
|
maintainers:
|
|
- Gabriel Fernandez <gabriel.fernandez@foss.st.com>
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- st,stm32-rtc
|
|
- st,stm32h7-rtc
|
|
- st,stm32mp1-rtc
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
minItems: 1
|
|
maxItems: 2
|
|
|
|
clock-names:
|
|
items:
|
|
- const: pclk
|
|
- const: rtc_ck
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
st,syscfg:
|
|
$ref: /schemas/types.yaml#/definitions/phandle-array
|
|
items:
|
|
minItems: 3
|
|
maxItems: 3
|
|
description: |
|
|
Phandle/offset/mask triplet. The phandle to pwrcfg used to
|
|
access control register at offset, and change the dbp (Disable Backup
|
|
Protection) bit represented by the mask, mandatory to disable/enable backup
|
|
domain (RTC registers) write protection.
|
|
|
|
assigned-clocks:
|
|
description: |
|
|
override default rtc_ck parent clock reference to the rtc_ck clock entry
|
|
maxItems: 1
|
|
|
|
assigned-clock-parents:
|
|
description: |
|
|
override default rtc_ck parent clock phandle of the new parent clock of rtc_ck
|
|
maxItems: 1
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: st,stm32-rtc
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 1
|
|
maxItems: 1
|
|
|
|
clock-names: false
|
|
|
|
required:
|
|
- st,syscfg
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: st,stm32h7-rtc
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 2
|
|
maxItems: 2
|
|
|
|
required:
|
|
- clock-names
|
|
- st,syscfg
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: st,stm32mp1-rtc
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 2
|
|
maxItems: 2
|
|
|
|
assigned-clocks: false
|
|
assigned-clock-parents: false
|
|
|
|
required:
|
|
- clock-names
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- clocks
|
|
- interrupts
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/mfd/stm32f4-rcc.h>
|
|
#include <dt-bindings/clock/stm32fx-clock.h>
|
|
rtc@40002800 {
|
|
compatible = "st,stm32-rtc";
|
|
reg = <0x40002800 0x400>;
|
|
clocks = <&rcc 1 CLK_RTC>;
|
|
assigned-clocks = <&rcc 1 CLK_RTC>;
|
|
assigned-clock-parents = <&rcc 1 CLK_LSE>;
|
|
interrupt-parent = <&exti>;
|
|
interrupts = <17 1>;
|
|
st,syscfg = <&pwrcfg 0x00 0x100>;
|
|
};
|
|
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
#include <dt-bindings/clock/stm32mp1-clks.h>
|
|
rtc@5c004000 {
|
|
compatible = "st,stm32mp1-rtc";
|
|
reg = <0x5c004000 0x400>;
|
|
clocks = <&rcc RTCAPB>, <&rcc RTC>;
|
|
clock-names = "pclk", "rtc_ck";
|
|
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
|
|
};
|
|
|
|
...
|