LXR linux/drivers/soc/renesas/rcar-sysc.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Renesas R-Car System Controller
   4 *
   5 * Copyright (C) 2016 Glider bvba
   6 */
   7#ifndef __SOC_RENESAS_RCAR_SYSC_H__
   8#define __SOC_RENESAS_RCAR_SYSC_H__
   9
  10#include <linux/types.h>
  11
  12
  13/*
  14 * Power Domain flags
  15 */
  16#define PD_CPU          BIT(0)  /* Area contains main CPU core */
  17#define PD_SCU          BIT(1)  /* Area contains SCU and L2 cache */
  18#define PD_NO_CR        BIT(2)  /* Area lacks PWR{ON,OFF}CR registers */
  19
  20#define PD_CPU_CR       PD_CPU            /* CPU area has CR (R-Car H1) */
  21#define PD_CPU_NOCR     PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
  22#define PD_ALWAYS_ON    PD_NO_CR          /* Always-on area */
  23
  24
  25/*
  26 * Description of a Power Area
  27 */
  28
  29struct rcar_sysc_area {
  30        const char *name;
  31        u16 chan_offs;          /* Offset of PWRSR register for this area */
  32        u8 chan_bit;            /* Bit in PWR* (except for PWRUP in PWRSR) */
  33        u8 isr_bit;             /* Bit in SYSCI*R */
  34        int parent;             /* -1 if none */
  35        unsigned int flags;     /* See PD_* */
  36};
  37
  38
  39/*
  40 * SoC-specific Power Area Description
  41 */
  42
  43struct rcar_sysc_info {
  44        int (*init)(void);      /* Optional */
  45        const struct rcar_sysc_area *areas;
  46        unsigned int num_areas;
  47        /* Optional External Request Mask Register */
  48        u32 extmask_offs;       /* SYSCEXTMASK register offset */
  49        u32 extmask_val;        /* SYSCEXTMASK register mask value */
  50};
  51
  52extern const struct rcar_sysc_info r8a7742_sysc_info;
  53extern const struct rcar_sysc_info r8a7743_sysc_info;
  54extern const struct rcar_sysc_info r8a7745_sysc_info;
  55extern const struct rcar_sysc_info r8a77470_sysc_info;
  56extern const struct rcar_sysc_info r8a774a1_sysc_info;
  57extern const struct rcar_sysc_info r8a774b1_sysc_info;
  58extern const struct rcar_sysc_info r8a774c0_sysc_info;
  59extern const struct rcar_sysc_info r8a774e1_sysc_info;
  60extern const struct rcar_sysc_info r8a7779_sysc_info;
  61extern const struct rcar_sysc_info r8a7790_sysc_info;
  62extern const struct rcar_sysc_info r8a7791_sysc_info;
  63extern const struct rcar_sysc_info r8a7792_sysc_info;
  64extern const struct rcar_sysc_info r8a7794_sysc_info;
  65extern struct rcar_sysc_info r8a7795_sysc_info;
  66extern const struct rcar_sysc_info r8a77960_sysc_info;
  67extern const struct rcar_sysc_info r8a77961_sysc_info;
  68extern const struct rcar_sysc_info r8a77965_sysc_info;
  69extern const struct rcar_sysc_info r8a77970_sysc_info;
  70extern const struct rcar_sysc_info r8a77980_sysc_info;
  71extern const struct rcar_sysc_info r8a77990_sysc_info;
  72extern const struct rcar_sysc_info r8a77995_sysc_info;
  73
  74
  75    /*
  76     * Helpers for fixing up power area tables depending on SoC revision
  77     */
  78
  79extern void rcar_sysc_nullify(struct rcar_sysc_area *areas,
  80                              unsigned int num_areas, u8 id);
  81
  82#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */
  83