zephyr/dts/bindings/clock/espressif,esp32-rtc.yaml

46 lines
1.1 KiB
YAML

# Copyright (c) 2020, Mohamed ElShahawi
# SPDX-License-Identifier: Apache-2.0
description: ESP32 RTC (Power & Clock Controller Module) Module
compatible: "espressif,esp32-rtc"
include: [clock-controller.yaml, base.yaml]
properties:
reg:
required: true
fast-clk-src:
type: int
required: true
description: |
RTC fast clock source.
- 0: ESP32_RTC_FAST_CLK_SRC_XTAL_D2 - Main XTAL divided by 2 (C3/S3)
ESP32_RTC_FAST_CLK_SRC_XTAL_D4 Main XTAL divided by 4 (ESP32/S2)
- 1: ESP32_RTC_FAST_CLK_SRC_RC_FAST - 8 MHz
enum:
- 0
- 1
slow-clk-src:
type: int
required: true
description: |
RTC slow clock source. Default to
- 0: ESP32_RTC_SLOW_CLK_SRC_RC_SLOW - 136 KHz (C3/S3) - 90 kHz (S2) - 150 kHz (ESP32)
- 1: ESP32_RTC_SLOW_CLK_SRC_XTAL32K - 32,768U KHz
- 2: ESP32_RTC_SLOW_CLK_SRC_RC_FAST_D256 - 17,5 MHz
- 9: ESP32_RTC_SLOW_CLK_32K_EXT_OSC - External 32k oscillator connected to 32K_XP pin
enum:
- 0
- 1
- 2
- 9
"#clock-cells":
const: 1
clock-cells:
- offset # Index of the peripheral in esp32 modules list (Check esp32_clock.h)