dt-bindings: clock: add Anlogic DR1V90 CRU

Add the Clock and Reset Unit (CRU) support for the Anlogic DR1V90 SoC,
which is responsible for clock and reset management.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Junhui Liu <junhui.liu@pigmoral.tech>
Signed-off-by: Brian Masney <bmasney@redhat.com>

Documentation/devicetree/bindings/clock/anlogic,dr1v90-cru.yaml

@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/anlogic,dr1v90-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Anlogic DR1V90 Clock and Reset Unit (CRU)
+
+maintainers:
+  - Junhui Liu <junhui.liu@pigmoral.tech>
+
+properties:
+  compatible:
+    const: anlogic,dr1v90-cru
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Main oscillator
+      - description: External CAN clock
+      - description: External WDT clock
+
+  clock-names:
+    items:
+      - const: osc
+      - const: can_ext
+      - const: wdt_ext
+
+  "#clock-cells":
+    const: 1
+    description:
+      Refer <dt-bindings/clock/anlogic,dr1v90-cru.h> for valid indices.
+
+  "#reset-cells":
+    const: 1
+    description:
+      Refer <dt-bindings/reset/anlogic,dr1v90-cru.h> for valid indices.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - "#clock-cells"
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@f8801000 {
+        compatible = "anlogic,dr1v90-cru";
+        reg = <0xf8801000 0x400>;
+        clocks = <&osc>, <&can_ext>, <&wdt_ext>;
+        clock-names = "osc", "can_ext", "wdt_ext";
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };

include/dt-bindings/clock/anlogic,dr1v90-cru.h

@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2024-2025 Anlogic, Inc.
+ * Copyright (C) 2025 Junhui Liu <junhui.liu@pigmoral.tech>
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_ANLOGIC_DR1V90_CRU_H_
+#define _DT_BINDINGS_CLOCK_ANLOGIC_DR1V90_CRU_H_
+
+#define CLK_OSC_DIV2		0
+#define CLK_CPU_PLL		1
+#define CLK_CPU_PLL_4X		2
+#define CLK_CPU_4X		3
+#define CLK_CPU_2X		4
+#define CLK_CPU_1X		5
+#define CLK_IO_PLL		6
+#define CLK_IO_1000M		7
+#define CLK_IO_400M		8
+#define CLK_IO_25M		9
+#define CLK_IO_80M		10
+#define CLK_IO_400M_DIV2	11
+#define CLK_IO_400M_DIV4	12
+#define CLK_IO_400M_DIV8	13
+#define CLK_IO_400M_DIV16	14
+#define CLK_QSPI		15
+#define CLK_SPI			16
+#define CLK_SMC			17
+#define CLK_SDIO		18
+#define CLK_GPIO_DB		19
+#define CLK_EFUSE		20
+#define CLK_TVS			21
+#define CLK_TRNG		22
+#define CLK_OSC_DIV		23
+#define CLK_PWM			24
+#define CLK_FCLK0		25
+#define CLK_FCLK1		26
+#define CLK_FCLK2		27
+#define CLK_FCLK3		28
+#define CLK_WDT_SEL		29
+#define CLK_EFUSE_SEL		30
+#define CLK_CAN_SEL		31
+#define CLK_CPU_SEL		32
+#define CLK_CAN0		33
+#define CLK_CAN1		34
+
+#endif /* _DT_BINDINGS_CLOCK_ANLOGIC_DR1V90_CRU_H_ */

include/dt-bindings/reset/anlogic,dr1v90-cru.h

@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2025 Junhui Liu <junhui.liu@pigmoral.tech>
+ */
+
+#ifndef _DT_BINDINGS_RESET_ANLOGIC_DR1V90_CRU_H_
+#define _DT_BINDINGS_RESET_ANLOGIC_DR1V90_CRU_H_
+
+#define RESET_OCM		0
+#define RESET_QSPI		1
+#define RESET_SMC		2
+#define RESET_WDT		3
+#define RESET_DMAC_AXI		4
+#define RESET_DMAC_AHB		5
+#define RESET_NPU		6
+#define RESET_JPU		7
+#define RESET_DDRBUS		8
+#define RESET_NIC_HP0		9
+#define RESET_NIC_HP1		10
+#define RESET_NIC_GP0M		11
+#define RESET_NIC_GP1M		12
+#define RESET_GPIO		13
+#define RESET_IPC		14
+#define RESET_USB0		15
+#define RESET_USB1		16
+#define RESET_GBE0		17
+#define RESET_GBE1		18
+#define RESET_SDIO0		19
+#define RESET_SDIO1		20
+#define RESET_UART0		21
+#define RESET_UART1		22
+#define RESET_SPI0		23
+#define RESET_SPI1		24
+#define RESET_CAN0		25
+#define RESET_CAN1		26
+#define RESET_TTC0		27
+#define RESET_TTC1		28
+#define RESET_I2C0		29
+#define RESET_I2C1		30
+
+#endif /* _DT_BINDINGS_RESET_ANLOGIC_DR1V90_CRU_H_ */