118 lines
2.7 KiB
YAML
118 lines
2.7 KiB
YAML
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
||
|
|
%YAML 1.2
|
||
|
|
---
|
||
|
|
$id: http://devicetree.org/schemas/spi/omap-spi.yaml#
|
||
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
||
|
|
|
||
|
|
title: SPI controller bindings for OMAP and K3 SoCs
|
||
|
|
|
||
|
|
maintainers:
|
||
|
|
- Aswath Govindraju <a-govindraju@ti.com>
|
||
|
|
|
||
|
|
allOf:
|
||
|
|
- $ref: spi-controller.yaml#
|
||
|
|
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
oneOf:
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- ti,am654-mcspi
|
||
|
|
- ti,am4372-mcspi
|
||
|
|
- const: ti,omap4-mcspi
|
||
|
|
- items:
|
||
|
|
- enum:
|
||
|
|
- ti,omap2-mcspi
|
||
|
|
- ti,omap4-mcspi
|
||
|
|
|
||
|
|
reg:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
interrupts:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
clocks:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
power-domains:
|
||
|
|
maxItems: 1
|
||
|
|
|
||
|
|
ti,spi-num-cs:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/uint32
|
||
|
|
description: Number of chipselect supported by the instance.
|
||
|
|
minimum: 1
|
||
|
|
maximum: 4
|
||
|
|
|
||
|
|
ti,hwmods:
|
||
|
|
$ref: /schemas/types.yaml#/definitions/string
|
||
|
|
description:
|
||
|
|
Must be "mcspi<n>", n being the instance number (1-based).
|
||
|
|
This property is applicable only on legacy platforms mainly omap2/3
|
||
|
|
and ti81xx and should not be used on other platforms.
|
||
|
|
deprecated: true
|
||
|
|
|
||
|
|
ti,pindir-d0-out-d1-in:
|
||
|
|
description:
|
||
|
|
Select the D0 pin as output and D1 as input. The default is D0
|
||
|
|
as input and D1 as output.
|
||
|
|
type: boolean
|
||
|
|
|
||
|
|
dmas:
|
||
|
|
description:
|
||
|
|
List of DMA specifiers with the controller specific format as
|
||
|
|
described in the generic DMA client binding. A tx and rx
|
||
|
|
specifier is required for each chip select.
|
||
|
|
minItems: 1
|
||
|
|
maxItems: 8
|
||
|
|
|
||
|
|
dma-names:
|
||
|
|
description:
|
||
|
|
List of DMA request names. These strings correspond 1:1 with
|
||
|
|
the DMA sepecifiers listed in dmas. The string names is to be
|
||
|
|
"rxN" and "txN" for RX and TX requests, respectively. Where N
|
||
|
|
is the chip select number.
|
||
|
|
minItems: 1
|
||
|
|
maxItems: 8
|
||
|
|
|
||
|
|
required:
|
||
|
|
- compatible
|
||
|
|
- reg
|
||
|
|
- interrupts
|
||
|
|
|
||
|
|
unevaluatedProperties: false
|
||
|
|
|
||
|
|
if:
|
||
|
|
properties:
|
||
|
|
compatible:
|
||
|
|
enum:
|
||
|
|
- ti,omap2-mcspi
|
||
|
|
- ti,omap4-mcspi
|
||
|
|
|
||
|
|
then:
|
||
|
|
properties:
|
||
|
|
ti,hwmods:
|
||
|
|
items:
|
||
|
|
- pattern: "^mcspi([1-9])$"
|
||
|
|
|
||
|
|
else:
|
||
|
|
properties:
|
||
|
|
ti,hwmods: false
|
||
|
|
|
||
|
|
examples:
|
||
|
|
- |
|
||
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||
|
|
#include <dt-bindings/soc/ti,sci_pm_domain.h>
|
||
|
|
|
||
|
|
spi@2100000 {
|
||
|
|
compatible = "ti,am654-mcspi","ti,omap4-mcspi";
|
||
|
|
reg = <0x2100000 0x400>;
|
||
|
|
interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
|
||
|
|
clocks = <&k3_clks 137 1>;
|
||
|
|
power-domains = <&k3_pds 137 TI_SCI_PD_EXCLUSIVE>;
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
dmas = <&main_udmap 0xc500>, <&main_udmap 0x4500>;
|
||
|
|
dma-names = "tx0", "rx0";
|
||
|
|
};
|