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_CPU_CR PD_CPU /* CPU area has CR (R-Car H1) */ 24 #define PD_CPU_NOCR PD_CPU | PD_NO_CR /* CPU area lacks CR (R-Car Gen2/3) */ 25 #define PD_ALWAYS_ON PD_NO_CR /* Always-on area */ 26 27 28 /* 29 * Description of a Power Area 30 */ 31 32 struct rcar_sysc_area { 33 const char *name; 34 u16 chan_offs; /* Offset of PWRSR register for this area */ 35 u8 chan_bit; /* Bit in PWR* (except for PWRUP in PWRSR) */ 36 u8 isr_bit; /* Bit in SYSCI*R */ 37 int parent; /* -1 if none */ 38 unsigned int flags; /* See PD_* */ 39 }; 40 41 42 /* 43 * SoC-specific Power Area Description 44 */ 45 46 struct rcar_sysc_info { 47 int (*init)(void); /* Optional */ 48 const struct rcar_sysc_area *areas; 49 unsigned int num_areas; 50 }; 51 52 extern const struct rcar_sysc_info r8a7743_sysc_info; 53 extern const struct rcar_sysc_info r8a7745_sysc_info; 54 extern const struct rcar_sysc_info r8a77470_sysc_info; 55 extern const struct rcar_sysc_info r8a7779_sysc_info; 56 extern const struct rcar_sysc_info r8a7790_sysc_info; 57 extern const struct rcar_sysc_info r8a7791_sysc_info; 58 extern const struct rcar_sysc_info r8a7792_sysc_info; 59 extern const struct rcar_sysc_info r8a7794_sysc_info; 60 extern const struct rcar_sysc_info r8a7795_sysc_info; 61 extern const struct rcar_sysc_info r8a7796_sysc_info; 62 extern const struct rcar_sysc_info r8a77965_sysc_info; 63 extern const struct rcar_sysc_info r8a77970_sysc_info; 64 extern const struct rcar_sysc_info r8a77980_sysc_info; 65 extern const struct rcar_sysc_info r8a77990_sysc_info; 66 extern const struct rcar_sysc_info r8a77995_sysc_info; 67 68 69 /* 70 * Helpers for fixing up power area tables depending on SoC revision 71 */ 72 73 extern void rcar_sysc_nullify(struct rcar_sysc_area *areas, 74 unsigned int num_areas, u8 id); 75 76 #endif /* __SOC_RENESAS_RCAR_SYSC_H__ */ 77
