zephyr/dts/bindings/i3c/nuvoton,npcx-i3c.yaml

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# Copyright (c) 2024 Nuvoton Technology Corporation.
# SPDX-License-Identifier: Apache-2.0
description: |
Nuvoton I3C controller
Representation:
/* If CONFIG_I3C_NPCX is enabled, the suggested clock configuration is as follows: */
&pcc {
clock-frequency = <DT_FREQ_M(90)>; /* OFMCLK runs at 90MHz */
core-prescaler = <3>; /* CORE_CLK runs at 30MHz */
apb1-prescaler = <6>; /* APB1_CLK runs at 15MHz */
apb2-prescaler = <6>; /* APB2_CLK runs at 15MHz */
apb3-prescaler = <6>; /* APB3_CLK runs at 15MHz */
apb4-prescaler = <3>; /* APB4_CLK runs at 30MHz */
};
&rst {
status = "okay";
};
&i3c0 {
status = "okay";
/* I3C clock frequency suggestion = <PP_SCL, OD_SCL> */
* Full speed = <12500000, 4170000>
* Normal speed = <7500000, 1500000>
*/
i3c-scl-hz = <12500000>;
i3c-od-scl-hz = <4170000>;
};
compatible: "nuvoton,npcx-i3c"
include: [i3c-controller.yaml, pinctrl-device.yaml, reset-device.yaml]
properties:
reg:
required: true
interrupts:
required: true
resets:
required: true
i3c-od-scl-hz:
type: int
description: |
Open Drain Frequency for the I3C controller. When undefined, use
the controller default or as specified by the I3C specification.