drivers/pmdomain/renesas/rcar-gen4-sysc.h

   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  */
  25 struct 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  */
  35 struct rcar_gen4_sysc_info {
  36         const struct rcar_gen4_sysc_area *areas;
  37         unsigned int num_areas;
  38 };
  39
  40 extern const struct rcar_gen4_sysc_info r8a779a0_sysc_info;
  41 extern const struct rcar_gen4_sysc_info r8a779f0_sysc_info;
  42 extern const struct rcar_gen4_sysc_info r8a779g0_sysc_info;
  43 extern const struct rcar_gen4_sysc_info r8a779h0_sysc_info;
  44
  45 #endif /* __SOC_RENESAS_RCAR_GEN4_SYSC_H__ */