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|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sram/qcom,ocmem.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: On Chip Memory (OCMEM) that is present on some Qualcomm Snapdragon SoCs.
maintainers:
- Brian Masney <masneyb@onstation.org>
description: |
The On Chip Memory (OCMEM) is typically used by the GPU, camera/video, and
audio components on some Snapdragon SoCs.
properties:
compatible:
enum:
- qcom,msm8226-ocmem # v1.1.0
- qcom,msm8974-ocmem # v1.4.0
reg:
items:
- description: Control registers
- description: OCMEM address range
reg-names:
items:
- const: ctrl
- const: mem
clocks:
minItems: 1
items:
- description: Core clock
- description: Interface clock
clock-names:
minItems: 1
items:
- const: core
- const: iface
'#address-cells':
const: 1
'#size-cells':
const: 1
ranges:
maxItems: 1
required:
- compatible
- reg
- reg-names
- clocks
- clock-names
- '#address-cells'
- '#size-cells'
- ranges
additionalProperties: false
allOf:
- if:
properties:
compatible:
contains:
enum:
- qcom,msm8974-ocmem
then:
properties:
clocks:
minItems: 2
clock-names:
minItems: 2
else:
properties:
clocks:
minItems: 1
clock-names:
minItems: 1
patternProperties:
"-sram@[0-9a-f]+$":
type: object
additionalProperties: false
description: A region of reserved memory.
properties:
reg:
maxItems: 1
required:
- reg
examples:
- |
#include <dt-bindings/clock/qcom,rpmcc.h>
#include <dt-bindings/clock/qcom,mmcc-msm8974.h>
sram@fdd00000 {
compatible = "qcom,msm8974-ocmem";
reg = <0xfdd00000 0x2000>,
<0xfec00000 0x180000>;
reg-names = "ctrl",
"mem";
clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
<&mmcc OCMEMCX_OCMEMNOC_CLK>;
clock-names = "core",
"iface";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0xfec00000 0x100000>;
gmu-sram@0 {
reg = <0x0 0x100000>;
};
};
|
