1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 4 * http://www.samsung.com 5 * 6 * Common Header for EXYNOS machines 7 */ 8 9 #ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H 10 #define __ARCH_ARM_MACH_EXYNOS_COMMON_H 11 12 #include <linux/platform_data/cpuidle-exynos.h> 13 14 #define EXYNOS3250_SOC_ID 0xE3472000 15 #define EXYNOS3_SOC_MASK 0xFFFFF000 16 17 #define EXYNOS4210_CPU_ID 0x43210000 18 #define EXYNOS4412_CPU_ID 0xE4412200 19 #define EXYNOS4_CPU_MASK 0xFFFE0000 20 21 #define EXYNOS5250_SOC_ID 0x43520000 22 #define EXYNOS5410_SOC_ID 0xE5410000 23 #define EXYNOS5420_SOC_ID 0xE5420000 24 #define EXYNOS5800_SOC_ID 0xE5422000 25 #define EXYNOS5_SOC_MASK 0xFFFFF000 26 27 extern unsigned long samsung_cpu_id; 28 29 #define IS_SAMSUNG_CPU(name, id, mask) \ 30 static inline int is_samsung_##name(void) \ 31 { \ 32 return ((samsung_cpu_id & mask) == (id & mask)); \ 33 } 34 35 IS_SAMSUNG_CPU(exynos3250, EXYNOS3250_SOC_ID, EXYNOS3_SOC_MASK) 36 IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK) 37 IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK) 38 IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK) 39 IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK) 40 IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK) 41 IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK) 42 43 #if defined(CONFIG_SOC_EXYNOS3250) 44 # define soc_is_exynos3250() is_samsung_exynos3250() 45 #else 46 # define soc_is_exynos3250() 0 47 #endif 48 49 #if defined(CONFIG_CPU_EXYNOS4210) 50 # define soc_is_exynos4210() is_samsung_exynos4210() 51 #else 52 # define soc_is_exynos4210() 0 53 #endif 54 55 #if defined(CONFIG_SOC_EXYNOS4412) 56 # define soc_is_exynos4412() is_samsung_exynos4412() 57 #else 58 # define soc_is_exynos4412() 0 59 #endif 60 61 #define EXYNOS4210_REV_0 (0x0) 62 #define EXYNOS4210_REV_1_0 (0x10) 63 #define EXYNOS4210_REV_1_1 (0x11) 64 65 #if defined(CONFIG_SOC_EXYNOS5250) 66 # define soc_is_exynos5250() is_samsung_exynos5250() 67 #else 68 # define soc_is_exynos5250() 0 69 #endif 70 71 #if defined(CONFIG_SOC_EXYNOS5410) 72 # define soc_is_exynos5410() is_samsung_exynos5410() 73 #else 74 # define soc_is_exynos5410() 0 75 #endif 76 77 #if defined(CONFIG_SOC_EXYNOS5420) 78 # define soc_is_exynos5420() is_samsung_exynos5420() 79 #else 80 # define soc_is_exynos5420() 0 81 #endif 82 83 #if defined(CONFIG_SOC_EXYNOS5800) 84 # define soc_is_exynos5800() is_samsung_exynos5800() 85 #else 86 # define soc_is_exynos5800() 0 87 #endif 88 89 extern u32 cp15_save_diag; 90 extern u32 cp15_save_power; 91 92 extern void __iomem *sysram_ns_base_addr; 93 extern void __iomem *sysram_base_addr; 94 extern phys_addr_t sysram_base_phys; 95 extern void __iomem *pmu_base_addr; 96 void exynos_sysram_init(void); 97 98 enum { 99 FW_DO_IDLE_SLEEP, 100 FW_DO_IDLE_AFTR, 101 }; 102 103 void exynos_firmware_init(void); 104 105 /* CPU BOOT mode flag for Exynos3250 SoC bootloader */ 106 #define C2_STATE (1 << 3) 107 /* 108 * Magic values for bootloader indicating chosen low power mode. 109 * See also Documentation/arm/samsung/bootloader-interface.rst 110 */ 111 #define EXYNOS_SLEEP_MAGIC 0x00000bad 112 #define EXYNOS_AFTR_MAGIC 0xfcba0d10 113 114 bool __init exynos_secure_firmware_available(void); 115 void exynos_set_boot_flag(unsigned int cpu, unsigned int mode); 116 void exynos_clear_boot_flag(unsigned int cpu, unsigned int mode); 117 118 #ifdef CONFIG_PM_SLEEP 119 extern void __init exynos_pm_init(void); 120 #else 121 static inline void exynos_pm_init(void) {} 122 #endif 123 124 extern void exynos_cpu_resume(void); 125 extern void exynos_cpu_resume_ns(void); 126 127 extern const struct smp_operations exynos_smp_ops; 128 129 extern void exynos_cpu_power_down(int cpu); 130 extern void exynos_cpu_power_up(int cpu); 131 extern int exynos_cpu_power_state(int cpu); 132 extern void exynos_cluster_power_down(int cluster); 133 extern void exynos_cluster_power_up(int cluster); 134 extern int exynos_cluster_power_state(int cluster); 135 extern void exynos_cpu_save_register(void); 136 extern void exynos_cpu_restore_register(void); 137 extern void exynos_pm_central_suspend(void); 138 extern int exynos_pm_central_resume(void); 139 extern void exynos_enter_aftr(void); 140 #ifdef CONFIG_SMP 141 extern void exynos_scu_enable(void); 142 #else 143 static inline void exynos_scu_enable(void) { } 144 #endif 145 146 extern struct cpuidle_exynos_data cpuidle_coupled_exynos_data; 147 148 extern void exynos_set_delayed_reset_assertion(bool enable); 149 150 extern unsigned int samsung_rev(void); 151 extern void exynos_core_restart(u32 core_id); 152 extern int exynos_set_boot_addr(u32 core_id, unsigned long boot_addr); 153 extern int exynos_get_boot_addr(u32 core_id, unsigned long *boot_addr); 154 155 static inline void pmu_raw_writel(u32 val, u32 offset) 156 { 157 writel_relaxed(val, pmu_base_addr + offset); 158 } 159 160 static inline u32 pmu_raw_readl(u32 offset) 161 { 162 return readl_relaxed(pmu_base_addr + offset); 163 } 164 165 #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */ 166