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 29 struct 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 43 struct 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 52 extern const struct rcar_sysc_info r8a7742_sysc_info; 53 extern const struct rcar_sysc_info r8a7743_sysc_info; 54 extern const struct rcar_sysc_info r8a7745_sysc_info; 55 extern const struct rcar_sysc_info r8a77470_sysc_info; 56 extern const struct rcar_sysc_info r8a774a1_sysc_info; 57 extern const struct rcar_sysc_info r8a774b1_sysc_info; 58 extern const struct rcar_sysc_info r8a774c0_sysc_info; 59 extern const struct rcar_sysc_info r8a774e1_sysc_info; 60 extern const struct rcar_sysc_info r8a7779_sysc_info; 61 extern const struct rcar_sysc_info r8a7790_sysc_info; 62 extern const struct rcar_sysc_info r8a7791_sysc_info; 63 extern const struct rcar_sysc_info r8a7792_sysc_info; 64 extern const struct rcar_sysc_info r8a7794_sysc_info; 65 extern struct rcar_sysc_info r8a7795_sysc_info; 66 extern const struct rcar_sysc_info r8a77960_sysc_info; 67 extern const struct rcar_sysc_info r8a77961_sysc_info; 68 extern const struct rcar_sysc_info r8a77965_sysc_info; 69 extern const struct rcar_sysc_info r8a77970_sysc_info; 70 extern const struct rcar_sysc_info r8a77980_sysc_info; 71 extern const struct rcar_sysc_info r8a77990_sysc_info; 72 extern 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 79 extern 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