dt-bindings: reset: sophgo: support SG2042

Add bindings for the reset generator on the SOPHGO SG2042 RISC-V SoC.

Signed-off-by: Chen Wang <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Inochi Amaoto <[email protected]>
Link: https://lore.kernel.org/r/35c348437b6e18972ccaf90d9c38040caccd1f11.1706577450.git.unicorn_wang@outlook.com
Signed-off-by: Philipp Zabel <[email protected]>

Author: unicornx

Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml

@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/sophgo,sg2042-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo SG2042 SoC Reset Controller
+
+maintainers:
+  - Chen Wang <[email protected]>
+
+properties:
+  compatible:
+    const: sophgo,sg2042-reset
+
+  reg:
+    maxItems: 1
+
+  "#reset-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    rstgen: reset-controller@c00 {
+        compatible = "sophgo,sg2042-reset";
+        reg = <0xc00 0xc>;
+        #reset-cells = <1>;
+    };

include/dt-bindings/reset/sophgo,sg2042-reset.h

@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+/*
+ * Copyright (C) 2023 Sophgo Technology Inc. All rights reserved.
+ */
+
+#ifndef __DT_BINDINGS_RESET_SOPHGO_SG2042_H_
+#define __DT_BINDINGS_RESET_SOPHGO_SG2042_H_
+
+#define RST_MAIN_AP			0
+#define RST_RISCV_CPU			1
+#define RST_RISCV_LOW_SPEED_LOGIC	2
+#define RST_RISCV_CMN			3
+#define RST_HSDMA			4
+#define RST_SYSDMA			5
+#define RST_EFUSE0			6
+#define RST_EFUSE1			7
+#define RST_RTC				8
+#define RST_TIMER			9
+#define RST_WDT				10
+#define RST_AHB_ROM0			11
+#define RST_AHB_ROM1			12
+#define RST_I2C0			13
+#define RST_I2C1			14
+#define RST_I2C2			15
+#define RST_I2C3			16
+#define RST_GPIO0			17
+#define RST_GPIO1			18
+#define RST_GPIO2			19
+#define RST_PWM				20
+#define RST_AXI_SRAM0			21
+#define RST_AXI_SRAM1			22
+#define RST_SF0				23
+#define RST_SF1				24
+#define RST_LPC				25
+#define RST_ETH0			26
+#define RST_EMMC			27
+#define RST_SD				28
+#define RST_UART0			29
+#define RST_UART1			30
+#define RST_UART2			31
+#define RST_UART3			32
+#define RST_SPI0			33
+#define RST_SPI1			34
+#define RST_DBG_I2C			35
+#define RST_PCIE0			36
+#define RST_PCIE1			37
+#define RST_DDR0			38
+#define RST_DDR1			39
+#define RST_DDR2			40
+#define RST_DDR3			41
+#define RST_FAU0			42
+#define RST_FAU1			43
+#define RST_FAU2			44
+#define RST_RXU0			45
+#define RST_RXU1			46
+#define RST_RXU2			47
+#define RST_RXU3			48
+#define RST_RXU4			49
+#define RST_RXU5			50
+#define RST_RXU6			51
+#define RST_RXU7			52
+#define RST_RXU8			53
+#define RST_RXU9			54
+#define RST_RXU10			55
+#define RST_RXU11			56
+#define RST_RXU12			57
+#define RST_RXU13			58
+#define RST_RXU14			59
+#define RST_RXU15			60
+#define RST_RXU16			61
+#define RST_RXU17			62
+#define RST_RXU18			63
+#define RST_RXU19			64
+#define RST_RXU20			65
+#define RST_RXU21			66
+#define RST_RXU22			67
+#define RST_RXU23			68
+#define RST_RXU24			69
+#define RST_RXU25			70
+#define RST_RXU26			71
+#define RST_RXU27			72
+#define RST_RXU28			73
+#define RST_RXU29			74
+#define RST_RXU30			75
+#define RST_RXU31			76
+
+#endif /* __DT_BINDINGS_RESET_SOPHGO_SG2042_H_ */