78 lines
1.8 KiB
YAML
78 lines
1.8 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
||
|
|
# Copyright 2020-21 Cadence
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: "http://devicetree.org/schemas/spi/cdns,xspi.yaml#"
|
||
|
|
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
|
||
|
|
|
||
|
|
title: Cadence XSPI Controller
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Parshuram Thombare <pthombar@cadence.com>
|
||
|
|
|
||
|
|
description: |
|
||
|
|
The XSPI controller allows SPI protocol communication in
|
||
|
|
single, dual, quad or octal wire transmission modes for
|
||
|
|
read/write access to slaves such as SPI-NOR flash.
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: "spi-controller.yaml#"
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
const: cdns,xspi-nor
|
||
|
|
|
||
|
|
reg:
|
||
|
|
items:
|
||
|
|
- description: address and length of the controller register set
|
||
|
|
- description: address and length of the Slave DMA data port
|
||
|
|
- description: address and length of the auxiliary registers
|
||
|
|
|
||
|
|
reg-names:
|
||
|
|
items:
|
||
|
|
- const: io
|
||
|
|
- const: sdma
|
||
|
|
- const: aux
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- interrupts
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||
|
|
bus {
|
||
|
|
#address-cells = <2>;
|
||
|
|
#size-cells = <2>;
|
||
|
|
|
||
|
|
xspi: spi@a0010000 {
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
compatible = "cdns,xspi-nor";
|
||
|
|
reg = <0x0 0xa0010000 0x0 0x1040>,
|
||
|
|
<0x0 0xb0000000 0x0 0x1000>,
|
||
|
|
<0x0 0xa0020000 0x0 0x100>;
|
||
|
|
reg-names = "io", "sdma", "aux";
|
||
|
|
interrupts = <0 90 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
interrupt-parent = <&gic>;
|
||
|
|
|
||
|
|
flash@0 {
|
||
|
|
compatible = "jedec,spi-nor";
|
||
|
|
spi-max-frequency = <75000000>;
|
||
|
|
reg = <0>;
|
||
|
|
};
|
||
|
|
|
||
|
|
flash@1 {
|
||
|
|
compatible = "jedec,spi-nor";
|
||
|
|
spi-max-frequency = <75000000>;
|
||
|
|
reg = <1>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|