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dt-bindings: reset: Add T-HEAD TH1520 SoC Reset Controller 

Add a YAML schema for the T-HEAD TH1520 SoC reset controller. This
controller manages resets for subsystems such as the GPU within the
TH1520 SoC.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
Link: https://lore.kernel.org/r/20250303152511.494405-2-m.wilczynski@samsung.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Michal Wilczynski 2025-03-03 16:25:10 +01:00 committed by Philipp Zabel
parent 0af2f6be1b
commit 30e7573bab
3 changed files with 62 additions and 0 deletions
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44
Documentation/devicetree/bindings/reset/thead,th1520-reset.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/reset/thead,th1520-reset.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: T-HEAD TH1520 SoC Reset Controller
description:
The T-HEAD TH1520 reset controller is a hardware block that asserts/deasserts
resets for SoC subsystems.
maintainers:
- Michal Wilczynski <m.wilczynski@samsung.com>
properties:
compatible:
enum:
- thead,th1520-reset
reg:
maxItems: 1
"#reset-cells":
const: 1
required:
- compatible
- reg
- "#reset-cells"
additionalProperties: false
examples:
- |
soc {
#address-cells = <2>;
#size-cells = <2>;
rst: reset-controller@ffef528000 {
compatible = "thead,th1520-reset";
reg = <0xff 0xef528000 0x0 0x1000>;
#reset-cells = <1>;
};
};

2
MAINTAINERS
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@ -20825,6 +20825,7 @@ F: Documentation/devicetree/bindings/firmware/thead,th1520-aon.yaml
F: Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml
F: Documentation/devicetree/bindings/net/thead,th1520-gmac.yaml
F: Documentation/devicetree/bindings/pinctrl/thead,th1520-pinctrl.yaml
F: Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
F: arch/riscv/boot/dts/thead/
F: drivers/clk/thead/clk-th1520-ap.c
F: drivers/firmware/thead,th1520-aon.c
@ -20834,6 +20835,7 @@ F: drivers/pinctrl/pinctrl-th1520.c
F: drivers/pmdomain/thead/
F: include/dt-bindings/clock/thead,th1520-clk-ap.h
F: include/dt-bindings/power/thead,th1520-power.h
F: include/dt-bindings/reset/thead,th1520-reset.h
F: include/linux/firmware/thead/thead,th1520-aon.h
RNBD BLOCK DRIVERS

16
include/dt-bindings/reset/thead,th1520-reset.h Normal file
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/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
/*
* Copyright (c) 2024 Samsung Electronics Co., Ltd.
* Author: Michal Wilczynski <m.wilczynski@samsung.com>
*/
#ifndef _DT_BINDINGS_TH1520_RESET_H
#define _DT_BINDINGS_TH1520_RESET_H
#define TH1520_RESET_ID_GPU 0
#define TH1520_RESET_ID_GPU_CLKGEN 1
#define TH1520_RESET_ID_NPU 2
#define TH1520_RESET_ID_WDT0 3
#define TH1520_RESET_ID_WDT1 4
#endif /* _DT_BINDINGS_TH1520_RESET_H */