1/*
 2 * Renesas R-Car System Controller
 3 *
 4 * Copyright (C) 2016 Glider bvba
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License as published by
 8 * the Free Software Foundation; version 2 of the License.
 9 */
10#ifndef __SOC_RENESAS_RCAR_SYSC_H__
11#define __SOC_RENESAS_RCAR_SYSC_H__
12
13#include <linux/types.h>
14
15
16/*
17 * Power Domain flags
18 */
19#define PD_CPU		BIT(0)	/* Area contains main CPU core */
20#define PD_SCU		BIT(1)	/* Area contains SCU and L2 cache */
21#define PD_NO_CR	BIT(2)	/* Area lacks PWR{ON,OFF}CR registers */
22
23#define PD_CPU_CR	PD_CPU		  /* CPU area has CR (R-Car H1) */
24#define PD_CPU_NOCR	PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
25#define PD_ALWAYS_ON	PD_NO_CR	  /* Always-on area */
26
27
28/*
29 * Description of a Power Area
30 */
31
32struct rcar_sysc_area {
33	const char *name;
34	u16 chan_offs;		/* Offset of PWRSR register for this area */
35	u8 chan_bit;		/* Bit in PWR* (except for PWRUP in PWRSR) */
36	u8 isr_bit;		/* Bit in SYSCI*R */
37	int parent;		/* -1 if none */
38	unsigned int flags;	/* See PD_* */
39};
40
41
42/*
43 * SoC-specific Power Area Description
44 */
45
46struct rcar_sysc_info {
47	int (*init)(void);	/* Optional */
48	const struct rcar_sysc_area *areas;
49	unsigned int num_areas;
50};
51
52extern const struct rcar_sysc_info r8a7743_sysc_info;
53extern const struct rcar_sysc_info r8a7745_sysc_info;
54extern const struct rcar_sysc_info r8a7779_sysc_info;
55extern const struct rcar_sysc_info r8a7790_sysc_info;
56extern const struct rcar_sysc_info r8a7791_sysc_info;
57extern const struct rcar_sysc_info r8a7792_sysc_info;
58extern const struct rcar_sysc_info r8a7794_sysc_info;
59extern const struct rcar_sysc_info r8a7795_sysc_info;
60extern const struct rcar_sysc_info r8a7796_sysc_info;
61extern const struct rcar_sysc_info r8a77965_sysc_info;
62extern const struct rcar_sysc_info r8a77970_sysc_info;
63extern const struct rcar_sysc_info r8a77980_sysc_info;
64extern const struct rcar_sysc_info r8a77995_sysc_info;
65
66
67    /*
68     * Helpers for fixing up power area tables depending on SoC revision
69     */
70
71extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
72			      unsigned int num_areas, u8 id);
73
74#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */