ARM: EXYNOS: Support secondary CPU boot of Exynos3250

[mirror_ubuntu-focal-kernel.git] / arch / arm / mach-exynos / common.h

/*
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * Common Header for EXYNOS machines
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __ARCH_ARM_MACH_EXYNOS_COMMON_H
#define __ARCH_ARM_MACH_EXYNOS_COMMON_H

#include <linux/reboot.h>
#include <linux/of.h>

#define EXYNOS3250_SOC_ID	0xE3472000
#define EXYNOS3_SOC_MASK	0xFFFFF000

#define EXYNOS4210_CPU_ID	0x43210000
#define EXYNOS4212_CPU_ID	0x43220000
#define EXYNOS4412_CPU_ID	0xE4412200
#define EXYNOS4_CPU_MASK	0xFFFE0000

#define EXYNOS5250_SOC_ID	0x43520000
#define EXYNOS5420_SOC_ID	0xE5420000
#define EXYNOS5440_SOC_ID	0xE5440000
#define EXYNOS5800_SOC_ID	0xE5422000
#define EXYNOS5_SOC_MASK	0xFFFFF000

extern unsigned long samsung_cpu_id;

#define IS_SAMSUNG_CPU(name, id, mask)		\
static inline int is_samsung_##name(void)	\
{						\
	return ((samsung_cpu_id & mask) == (id & mask));	\
}

IS_SAMSUNG_CPU(exynos3250, EXYNOS3250_SOC_ID, EXYNOS3_SOC_MASK)
IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK)
IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK)
IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK)

#if defined(CONFIG_SOC_EXYNOS3250)
# define soc_is_exynos3250()	is_samsung_exynos3250()
#else
# define soc_is_exynos3250()	0
#endif

#if defined(CONFIG_CPU_EXYNOS4210)
# define soc_is_exynos4210()	is_samsung_exynos4210()
#else
# define soc_is_exynos4210()	0
#endif

#if defined(CONFIG_SOC_EXYNOS4212)
# define soc_is_exynos4212()	is_samsung_exynos4212()
#else
# define soc_is_exynos4212()	0
#endif

#if defined(CONFIG_SOC_EXYNOS4412)
# define soc_is_exynos4412()	is_samsung_exynos4412()
#else
# define soc_is_exynos4412()	0
#endif

#define EXYNOS4210_REV_0	(0x0)
#define EXYNOS4210_REV_1_0	(0x10)
#define EXYNOS4210_REV_1_1	(0x11)

#if defined(CONFIG_SOC_EXYNOS5250)
# define soc_is_exynos5250()	is_samsung_exynos5250()
#else
# define soc_is_exynos5250()	0
#endif

#if defined(CONFIG_SOC_EXYNOS5420)
# define soc_is_exynos5420()	is_samsung_exynos5420()
#else
# define soc_is_exynos5420()	0
#endif

#if defined(CONFIG_SOC_EXYNOS5440)
# define soc_is_exynos5440()	is_samsung_exynos5440()
#else
# define soc_is_exynos5440()	0
#endif

#if defined(CONFIG_SOC_EXYNOS5800)
# define soc_is_exynos5800()	is_samsung_exynos5800()
#else
# define soc_is_exynos5800()	0
#endif

#define soc_is_exynos4() (soc_is_exynos4210() || soc_is_exynos4212() || \
			  soc_is_exynos4412())
#define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5420() || \
			  soc_is_exynos5800())

void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1);

struct map_desc;
void exynos_init_io(void);
void exynos_restart(enum reboot_mode mode, const char *cmd);
void exynos_cpuidle_init(void);
void exynos_cpufreq_init(void);
void exynos_init_late(void);

void exynos_firmware_init(void);

#ifdef CONFIG_PINCTRL_EXYNOS
extern u32 exynos_get_eint_wake_mask(void);
#else
static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; }
#endif

#ifdef CONFIG_PM_SLEEP
extern void __init exynos_pm_init(void);
#else
static inline void exynos_pm_init(void) {}
#endif

extern void exynos_cpu_resume(void);

extern struct smp_operations exynos_smp_ops;

extern void exynos_cpu_die(unsigned int cpu);

/* PMU(Power Management Unit) support */

#define PMU_TABLE_END	NULL

enum sys_powerdown {
	SYS_AFTR,
	SYS_LPA,
	SYS_SLEEP,
	NUM_SYS_POWERDOWN,
};

extern unsigned long l2x0_regs_phys;
struct exynos_pmu_conf {
	void __iomem *reg;
	unsigned int val[NUM_SYS_POWERDOWN];
};

extern void exynos_sys_powerdown_conf(enum sys_powerdown mode);

extern void s5p_init_cpu(void __iomem *cpuid_addr);
extern unsigned int samsung_rev(void);

#endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */