1 #ifndef __ASMARM_ARCH_SCU_H
2 #define __ASMARM_ARCH_SCU_H
4 #define SCU_PM_NORMAL 0
5 #define SCU_PM_DORMANT 2
6 #define SCU_PM_POWEROFF 3
10 #include <linux/errno.h>
11 #include <asm/cputype.h>
13 static inline bool scu_a9_has_base(void)
15 return read_cpuid_part() == ARM_CPU_PART_CORTEX_A9;
18 static inline unsigned long scu_a9_get_base(void)
22 asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (pa));
27 #ifdef CONFIG_HAVE_ARM_SCU
28 unsigned int scu_get_core_count(void __iomem *);
29 int scu_power_mode(void __iomem *, unsigned int);
30 int scu_cpu_power_enable(void __iomem *, unsigned int);
31 int scu_get_cpu_power_mode(void __iomem *scu_base, unsigned int logical_cpu);
33 static inline unsigned int scu_get_core_count(void __iomem *scu_base)
37 static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode)
41 static inline int scu_cpu_power_enable(void __iomem *scu_base,
46 static inline int scu_get_cpu_power_mode(void __iomem *scu_base,
47 unsigned int logical_cpu)
53 #if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU)
54 void scu_enable(void __iomem *scu_base);
56 static inline void scu_enable(void __iomem *scu_base) {}