zephyr/dts/bindings/timer/microchip,xec-basic-timer.yaml
Scott Worley ef4ec43e63 drivers: timer: microchip: xec: Microchip MEC one kernel timer driver
We want to simplify the maintenance burden and confusion of having
more than one driver for the same kernel timer peripheral used on
all Microchip MEC parts. The XEC version of the driver was converted
register definitions in the driver. Register access is performed using
Zephyr sys_read/write architecture specific inline routines. Driver DT
YAML was updated to use phandle for the 32-bit basic timer used for
ARCH_HAS_CUSTOM_BUSY_WAIT support, basic timer max value property,
and GIRQ interrtup aggregator hardware information.
SoC part Kconfigs, chip level/board level DTSI updated to use the
unified driver.

Signed-off-by: Scott Worley <scott.worley@microchip.com>
2025-07-19 15:39:40 -04:00

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YAML

# Copyright (c) 2025 Microchip Technology Inc.
# SPDX-License-Identifier: Apache-2.0
description: Microchip XEC basic timer properties
compatible: "microchip,xec-basic-timer"
include: ["base.yaml", "microchip,dmec-ecia-girq.yaml"]
properties:
reg:
required: true
interrupts:
required: true
clock-frequency:
type: int
required: true
const: 48000000
description: Basic timer input clock is 48 MHz.
max-value:
type: int
required: true
description: |
Counter maximum value. The SoC contains multiple instances
of the basic timer. Some are 16-bit, others 32-bit.
prescaler:
type: int
required: true
description: |
Basic timer implements a 16-bit clock prescale value.
Count frequency is clock-frequency divided by (prescaler + 1).