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}; 48 49extern const struct rcar_sysc_info r8a7743_sysc_info; 50extern const struct rcar_sysc_info r8a7745_sysc_info; 51extern const struct rcar_sysc_info r8a77470_sysc_info; 52extern const struct rcar_sysc_info r8a774a1_sysc_info; 53extern const struct rcar_sysc_info r8a774c0_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 r8a77990_sysc_info; 65extern const struct rcar_sysc_info r8a77995_sysc_info; 66 67 68 /* 69 * Helpers for fixing up power area tables depending on SoC revision 70 */ 71 72extern void rcar_sysc_nullify(struct rcar_sysc_area *areas, 73 unsigned int num_areas, u8 id); 74 75#endif /* __SOC_RENESAS_RCAR_SYSC_H__ */ 76