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dt-bindings: mtd: Convert ti, am654-hbmc.txt to YAML schema

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Convert ti,am654-hbmc.txt to YAML schema for better checks and
validations of DT.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Vignesh Raghavendra 2021-06-11 11:05:33 +05:30 committed by Miquel Raynal
parent 828ed78655
commit 6947ad6749
2 changed files with 69 additions and 51 deletions
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51
Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
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@ -1,51 +0,0 @@
Bindings for HyperBus Memory Controller (HBMC) on TI's K3 family of SoCs
Required properties:
- compatible : "ti,am654-hbmc" for AM654 SoC
- reg : Two entries:
First entry pointed to the register space of HBMC controller
Second entry pointing to the memory map region dedicated for
MMIO access to attached flash devices
- ranges : Address translation from offset within CS to allocated MMIO
space in SoC
Optional properties:
- mux-controls : phandle to the multiplexer that controls selection of
HBMC vs OSPI inside Flash SubSystem (FSS). Default is OSPI,
if property is absent.
See Documentation/devicetree/bindings/mux/reg-mux.txt
for mmio-mux binding details
Example:
system-controller@47000000 {
compatible = "syscon", "simple-mfd";
reg = <0x0 0x47000000 0x0 0x100>;
#address-cells = <2>;
#size-cells = <2>;
ranges;
hbmc_mux: multiplexer {
compatible = "mmio-mux";
#mux-control-cells = <1>;
mux-reg-masks = <0x4 0x2>; /* 0: reg 0x4, bit 1 */
};
};
hbmc: hyperbus@47034000 {
compatible = "ti,am654-hbmc";
reg = <0x0 0x47034000 0x0 0x100>,
<0x5 0x00000000 0x1 0x0000000>;
power-domains = <&k3_pds 55>;
#address-cells = <2>;
#size-cells = <1>;
ranges = <0x0 0x0 0x5 0x00000000 0x4000000>, /* CS0 - 64MB */
<0x1 0x0 0x5 0x04000000 0x4000000>; /* CS1 - 64MB */
mux-controls = <&hbmc_mux 0>;
/* Slave flash node */
flash@0,0 {
compatible = "cypress,hyperflash", "cfi-flash";
reg = <0x0 0x0 0x4000000>;
};
};

69
Documentation/devicetree/bindings/mtd/ti,am654-hbmc.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mtd/ti,am654-hbmc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: HyperBus Memory Controller (HBMC) on TI's K3 family of SoCs
maintainers:
- Vignesh Raghavendra <vigneshr@ti.com>
properties:
compatible:
const: ti,am654-hbmc
reg:
maxItems: 2
power-domains: true
'#address-cells': true
'#size-cells': true
ranges: true
mux-controls:
description: MMIO mux controller node to select b/w OSPI and HBMC.
clocks:
maxItems: 1
patternProperties:
"^flash@[0-1],[0-9a-f]+$":
type: object
required:
- compatible
- reg
- ranges
- clocks
- '#address-cells'
- '#size-cells'
additionalProperties: false
examples:
- |
bus {
#address-cells = <2>;
#size-cells = <2>;
hbmc: memory-controller@47034000 {
compatible = "ti,am654-hbmc";
reg = <0x0 0x47034000 0x0 0x100>,
<0x5 0x00000000 0x1 0x0000000>;
ranges = <0x0 0x0 0x5 0x00000000 0x4000000>, /* CS0 - 64MB */
<0x1 0x0 0x5 0x04000000 0x4000000>; /* CS1 - 64MB */
clocks = <&k3_clks 102 0>;
#address-cells = <2>;
#size-cells = <1>;
power-domains = <&k3_pds 55>;
mux-controls = <&hbmc_mux 0>;
flash@0,0 {
compatible = "cypress,hyperflash", "cfi-flash";
reg = <0x0 0x0 0x4000000>;
#address-cells = <1>;
#size-cells = <1>;
};
};
};