1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * R-Car Gen4 System Controller
 4 *
 5 * Copyright (C) 2021 Renesas Electronics Corp.
 6 */
 7#ifndef __SOC_RENESAS_RCAR_GEN4_SYSC_H__
 8#define __SOC_RENESAS_RCAR_GEN4_SYSC_H__
 9
10#include <linux/types.h>
11
12/*
13 * Power Domain flags
14 */
15#define PD_CPU		BIT(0)	/* Area contains main CPU core */
16#define PD_SCU		BIT(1)	/* Area contains SCU and L2 cache */
17#define PD_NO_CR	BIT(2)	/* Area lacks PWR{ON,OFF}CR registers */
18
19#define PD_CPU_NOCR	(PD_CPU | PD_NO_CR) /* CPU area lacks CR */
20#define PD_ALWAYS_ON	PD_NO_CR	  /* Always-on area */
21
22/*
23 * Description of a Power Area
24 */
25struct rcar_gen4_sysc_area {
26	const char *name;
27	u8 pdr;			/* PDRn */
28	s8 parent;		/* -1 if none */
29	u8 flags;		/* See PD_* */
30};
31
32/*
33 * SoC-specific Power Area Description
34 */
35struct rcar_gen4_sysc_info {
36	const struct rcar_gen4_sysc_area *areas;
37	unsigned int num_areas;
38};
39
40extern const struct rcar_gen4_sysc_info r8a779a0_sysc_info;
41extern const struct rcar_gen4_sysc_info r8a779f0_sysc_info;
42extern const struct rcar_gen4_sysc_info r8a779g0_sysc_info;
43
44#endif /* __SOC_RENESAS_RCAR_GEN4_SYSC_H__ */