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 EXYNOS4212_CPU_ID 0x43220000
19 #define EXYNOS4412_CPU_ID 0xE4412200
20 #define EXYNOS4_CPU_MASK 0xFFFE0000
21
22 #define EXYNOS5250_SOC_ID 0x43520000
23 #define EXYNOS5410_SOC_ID 0xE5410000
24 #define EXYNOS5420_SOC_ID 0xE5420000
25 #define EXYNOS5800_SOC_ID 0xE5422000
26 #define EXYNOS5_SOC_MASK 0xFFFFF000
27
28 extern unsigned long exynos_cpu_id;
29
30 #define IS_SAMSUNG_CPU(name, id, mask) \
31 static inline int is_samsung_##name(void) \
32 { \
33 return ((exynos_cpu_id & mask) == (id & mask)); \
34 }
35
36 IS_SAMSUNG_CPU(exynos3250, EXYNOS3250_SOC_ID, EXYNOS3_SOC_MASK)
37 IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
38 IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK)
39 IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
40 IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
41 IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK)
42 IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK)
43 IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK)
44
45 #if defined(CONFIG_SOC_EXYNOS3250)
46 # define soc_is_exynos3250() is_samsung_exynos3250()
47 #else
48 # define soc_is_exynos3250() 0
49 #endif
50
51 #if defined(CONFIG_CPU_EXYNOS4210)
52 # define soc_is_exynos4210() is_samsung_exynos4210()
53 #else
54 # define soc_is_exynos4210() 0
55 #endif
56
57 #if defined(CONFIG_SOC_EXYNOS4212)
58 # define soc_is_exynos4212() is_samsung_exynos4212()
59 #else
60 # define soc_is_exynos4212() 0
61 #endif
62
63 #if defined(CONFIG_SOC_EXYNOS4412)
64 # define soc_is_exynos4412() is_samsung_exynos4412()
65 #else
66 # define soc_is_exynos4412() 0
67 #endif
68
69 #define EXYNOS4210_REV_0 (0x0)
70 #define EXYNOS4210_REV_1_0 (0x10)
71 #define EXYNOS4210_REV_1_1 (0x11)
72
73 #if defined(CONFIG_SOC_EXYNOS5250)
74 # define soc_is_exynos5250() is_samsung_exynos5250()
75 #else
76 # define soc_is_exynos5250() 0
77 #endif
78
79 #if defined(CONFIG_SOC_EXYNOS5410)
80 # define soc_is_exynos5410() is_samsung_exynos5410()
81 #else
82 # define soc_is_exynos5410() 0
83 #endif
84
85 #if defined(CONFIG_SOC_EXYNOS5420)
86 # define soc_is_exynos5420() is_samsung_exynos5420()
87 #else
88 # define soc_is_exynos5420() 0
89 #endif
90
91 #if defined(CONFIG_SOC_EXYNOS5800)
92 # define soc_is_exynos5800() is_samsung_exynos5800()
93 #else
94 # define soc_is_exynos5800() 0
95 #endif
96
97 extern u32 cp15_save_diag;
98 extern u32 cp15_save_power;
99
100 extern void __iomem *sysram_ns_base_addr;
101 extern void __iomem *sysram_base_addr;
102 extern phys_addr_t sysram_base_phys;
103 extern void __iomem *pmu_base_addr;
104 void exynos_sysram_init(void);
105
106 enum {
107 FW_DO_IDLE_SLEEP,
108 FW_DO_IDLE_AFTR,
109 };
110
111 void exynos_firmware_init(void);
112
113 /* CPU BOOT mode flag for Exynos3250 SoC bootloader */
114 #define C2_STATE (1 << 3)
115 /*
116 * Magic values for bootloader indicating chosen low power mode.
117 * See also Documentation/arch/arm/samsung/bootloader-interface.rst
118 */
119 #define EXYNOS_SLEEP_MAGIC 0x00000bad
120 #define EXYNOS_AFTR_MAGIC 0xfcba0d10
121
122 bool __init exynos_secure_firmware_available(void);
123 void exynos_set_boot_flag(unsigned int cpu, unsigned int mode);
124 void exynos_clear_boot_flag(unsigned int cpu, unsigned int mode);
125
126 #ifdef CONFIG_PM_SLEEP
127 extern void __init exynos_pm_init(void);
128 #else
129 static inline void exynos_pm_init(void) {}
130 #endif
131
132 extern void exynos_cpu_resume(void);
133 extern void exynos_cpu_resume_ns(void);
134
135 extern const struct smp_operations exynos_smp_ops;
136
137 extern void exynos_cpu_power_down(int cpu);
138 extern void exynos_cpu_power_up(int cpu);
139 extern int exynos_cpu_power_state(int cpu);
140 extern void exynos_cluster_power_down(int cluster);
141 extern void exynos_cluster_power_up(int cluster);
142 extern int exynos_cluster_power_state(int cluster);
143 extern void exynos_cpu_save_register(void);
144 extern void exynos_cpu_restore_register(void);
145 extern void exynos_pm_central_suspend(void);
146 extern int exynos_pm_central_resume(void);
147 extern void exynos_enter_aftr(void);
148 #ifdef CONFIG_SMP
149 extern void exynos_scu_enable(void);
150 #else
151 static inline void exynos_scu_enable(void) { }
152 #endif
153
154 extern struct cpuidle_exynos_data cpuidle_coupled_exynos_data;
155
156 extern void exynos_set_delayed_reset_assertion(bool enable);
157
158 extern unsigned int exynos_rev(void);
159 extern void exynos_core_restart(u32 core_id);
160 extern int exynos_set_boot_addr(u32 core_id, unsigned long boot_addr);
161 extern int exynos_get_boot_addr(u32 core_id, unsigned long *boot_addr);
162
163 static inline void pmu_raw_writel(u32 val, u32 offset)
164 {
165 writel_relaxed(val, pmu_base_addr + offset);
166 }
167
168 static inline u32 pmu_raw_readl(u32 offset)
169 {
170 return readl_relaxed(pmu_base_addr + offset);
171 }
172
173 #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */
174
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