1 #ifndef __ASMARM_ARCH_SCU_H 2 #define __ASMARM_ARCH_SCU_H 3 4 #define SCU_PM_NORMAL 0 5 #define SCU_PM_DORMANT 2 6 #define SCU_PM_POWEROFF 3 7 8 #ifndef __ASSEMBLER__ 9 10 #include <asm/cputype.h> 11 12 static inline bool scu_a9_has_base(void) 13 { 14 return read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9; 15 } 16 17 static inline unsigned long scu_a9_get_base(void) 18 { 19 unsigned long pa; 20 21 asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (pa)); 22 23 return pa; 24 } 25 26 #ifdef CONFIG_HAVE_ARM_SCU 27 unsigned int scu_get_core_count(void __iomem *); 28 int scu_power_mode(void __iomem *, unsigned int); 29 #else 30 static inline unsigned int scu_get_core_count(void __iomem *scu_base) 31 { 32 return 0; 33 } 34 static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode) 35 { 36 return -EINVAL; 37 } 38 #endif 39 40 #if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU) 41 void scu_enable(void __iomem *scu_base); 42 #else 43 static inline void scu_enable(void __iomem *scu_base) {} 44 #endif 45 46 #endif 47 48 #endif 49