117 lines
2.8 KiB
YAML
117 lines
2.8 KiB
YAML
|
# SPDX-License-Identifier: GPL-2.0
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/spi/spi-rockchip.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: Rockchip SPI Controller
|
||
|
|
|
||
|
|
description:
|
||
|
|
The Rockchip SPI controller is used to interface with various devices such
|
||
|
|
as flash and display controllers using the SPI communication interface.
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: "spi-controller.yaml#"
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Heiko Stuebner <heiko@sntech.de>
|
||
|
|
|
||
|
|
# Everything else is described in the common file
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
oneOf:
|
||
|
|
- const: rockchip,rk3036-spi
|
||
|
|
- const: rockchip,rk3066-spi
|
||
|
|
- const: rockchip,rk3228-spi
|
||
|
|
- const: rockchip,rv1108-spi
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- rockchip,px30-spi
|
||
|
|
- rockchip,rk3128-spi
|
||
|
|
- rockchip,rk3188-spi
|
||
|
|
- rockchip,rk3288-spi
|
||
|
|
- rockchip,rk3308-spi
|
||
|
|
- rockchip,rk3328-spi
|
||
|
|
- rockchip,rk3368-spi
|
||
|
|
- rockchip,rk3399-spi
|
||
|
|
- rockchip,rk3568-spi
|
||
|
|
- rockchip,rk3588-spi
|
||
|
|
- rockchip,rv1126-spi
|
||
|
|
- const: rockchip,rk3066-spi
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
clocks:
|
||
|
|
items:
|
||
|
|
- description: transfer-clock
|
||
|
|
- description: peripheral clock
|
||
|
|
|
||
|
|
clock-names:
|
||
|
|
items:
|
||
|
|
- const: spiclk
|
||
|
|
- const: apb_pclk
|
||
|
|
|
||
|
|
dmas:
|
||
|
|
items:
|
||
|
|
- description: TX DMA Channel
|
||
|
|
- description: RX DMA Channel
|
||
|
|
|
||
|
|
dma-names:
|
||
|
|
items:
|
||
|
|
- const: tx
|
||
|
|
- const: rx
|
||
|
|
|
||
|
|
rx-sample-delay-ns:
|
||
|
|
default: 0
|
||
|
|
description:
|
||
|
|
Nano seconds to delay after the SCLK edge before sampling Rx data
|
||
|
|
(may need to be fine tuned for high capacitance lines).
|
||
|
|
If not specified 0 will be used.
|
||
|
|
|
||
|
|
pinctrl-names:
|
||
|
|
minItems: 1
|
||
|
|
items:
|
||
|
|
- const: default
|
||
|
|
- const: sleep
|
||
|
|
description:
|
||
|
|
Names for the pin configuration(s); may be "default" or "sleep",
|
||
|
|
where the "sleep" configuration may describe the state
|
||
|
|
the pins should be in during system suspend.
|
||
|
|
|
||
|
|
power-domains:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- interrupts
|
||
|
|
- clocks
|
||
|
|
- clock-names
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/clock/rk3188-cru-common.h>
|
||
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||
|
|
spi0: spi@ff110000 {
|
||
|
|
compatible = "rockchip,rk3066-spi";
|
||
|
|
reg = <0xff110000 0x1000>;
|
||
|
|
interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
clocks = <&cru SCLK_SPI0>, <&cru PCLK_SPI0>;
|
||
|
|
clock-names = "spiclk", "apb_pclk";
|
||
|
|
dmas = <&pdma1 11>, <&pdma1 12>;
|
||
|
|
dma-names = "tx", "rx";
|
||
|
|
pinctrl-0 = <&spi1_pins>;
|
||
|
|
pinctrl-1 = <&spi1_sleep>;
|
||
|
|
pinctrl-names = "default", "sleep";
|
||
|
|
rx-sample-delay-ns = <10>;
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
};
|