/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Renesas R-Car System Controller
 *
 * Copyright (C) 2016 Glider bvba
 */
#ifndef __SOC_RENESAS_RCAR_SYSC_H__
#define __SOC_RENESAS_RCAR_SYSC_H__

#include <linux/types.h>


/*
 * Power Domain flags
 */
#define PD_CPU          BIT(0)  /* Area contains main CPU core */
#define PD_SCU          BIT(1)  /* Area contains SCU and L2 cache */
#define PD_NO_CR        BIT(2)  /* Area lacks PWR{ON,OFF}CR registers */
#define PD_OFF_DELAY    BIT(3)  /* Area is subject to power-off delay quirk */

#define PD_CPU_CR       PD_CPU            /* CPU area has CR (R-Car H1) */
#define PD_CPU_NOCR     PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
#define PD_ALWAYS_ON    PD_NO_CR          /* Always-on area */


/*
 * Description of a Power Area
 */

struct rcar_sysc_area {
        const char *name;
        u16 chan_offs;          /* Offset of PWRSR register for this area */
        u8 chan_bit;            /* Bit in PWR* (except for PWRUP in PWRSR) */
        u8 isr_bit;             /* Bit in SYSCI*R */
        s8 parent;              /* -1 if none */
        u8 flags;               /* See PD_* */
};


/*
 * SoC-specific Power Area Description
 */

struct rcar_sysc_info {
        int (*init)(void);      /* Optional */
        const struct rcar_sysc_area *areas;
        unsigned int num_areas;
        /* Optional External Request Mask Register */
        u32 extmask_offs;       /* SYSCEXTMASK register offset */
        u32 extmask_val;        /* SYSCEXTMASK register mask value */
};

extern const struct rcar_sysc_info r8a7742_sysc_info;
extern const struct rcar_sysc_info r8a7743_sysc_info;
extern const struct rcar_sysc_info r8a7745_sysc_info;
extern const struct rcar_sysc_info r8a77470_sysc_info;
extern const struct rcar_sysc_info r8a774a1_sysc_info;
extern const struct rcar_sysc_info r8a774b1_sysc_info;
extern const struct rcar_sysc_info r8a774c0_sysc_info;
extern const struct rcar_sysc_info r8a774e1_sysc_info;
extern const struct rcar_sysc_info r8a7779_sysc_info;
extern const struct rcar_sysc_info r8a7790_sysc_info;
extern const struct rcar_sysc_info r8a7791_sysc_info;
extern const struct rcar_sysc_info r8a7792_sysc_info;
extern const struct rcar_sysc_info r8a7794_sysc_info;
extern struct rcar_sysc_info r8a7795_sysc_info;
extern const struct rcar_sysc_info r8a77960_sysc_info;
extern const struct rcar_sysc_info r8a77961_sysc_info;
extern const struct rcar_sysc_info r8a77965_sysc_info;
extern const struct rcar_sysc_info r8a77970_sysc_info;
extern const struct rcar_sysc_info r8a77980_sysc_info;
extern const struct rcar_sysc_info r8a77990_sysc_info;
extern const struct rcar_sysc_info r8a77995_sysc_info;

#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */