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 44 #endif /* __SOC_RENESAS_RCAR_GEN4_SYSC_H__ */ 45