drivers/soc/renesas/rcar-sysc.h

   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_BUSY         BIT(3)  /* Busy, for internal use only */
  24
  25 #define PD_CPU_CR       PD_CPU            /* CPU area has CR (R-Car H1) */
  26 #define PD_CPU_NOCR     PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */
  27 #define PD_ALWAYS_ON    PD_NO_CR          /* Always-on area */
  28
  29
  30 /*
  31  * Description of a Power Area
  32  */
  33
  34 struct rcar_sysc_area {
  35         const char *name;
  36         u16 chan_offs;          /* Offset of PWRSR register for this area */
  37         u8 chan_bit;            /* Bit in PWR* (except for PWRUP in PWRSR) */
  38         u8 isr_bit;             /* Bit in SYSCI*R */
  39         int parent;             /* -1 if none */
  40         unsigned int flags;     /* See PD_* */
  41 };
  42
  43
  44 /*
  45  * SoC-specific Power Area Description
  46  */
  47
  48 struct rcar_sysc_info {
  49         const struct rcar_sysc_area *areas;
  50         unsigned int num_areas;
  51 };
  52
  53 extern const struct rcar_sysc_info r8a7779_sysc_info;
  54 extern const struct rcar_sysc_info r8a7790_sysc_info;
  55 extern const struct rcar_sysc_info r8a7791_sysc_info;
  56 extern const struct rcar_sysc_info r8a7794_sysc_info;
  57 extern const struct rcar_sysc_info r8a7795_sysc_info;
  58 #endif /* __SOC_RENESAS_RCAR_SYSC_H__ */