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 exynos_cpu_id;
28
29 #define IS_SAMSUNG_CPU(name, id, mask) \
30 static inline int is_samsung_##name(void) \
31 { \
32 return ((exynos_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
exynos_pm_init(void)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
exynos_scu_enable(void)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 exynos_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
pmu_raw_writel(u32 val,u32 offset)155 static inline void pmu_raw_writel(u32 val, u32 offset)
156 {
157 writel_relaxed(val, pmu_base_addr + offset);
158 }
159
pmu_raw_readl(u32 offset)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