diff options
Diffstat (limited to 'arch/arm/include/asm/smp_scu.h')
| -rw-r--r-- | arch/arm/include/asm/smp_scu.h | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/arch/arm/include/asm/smp_scu.h b/arch/arm/include/asm/smp_scu.h index 2376835015d..0393fbab8dd 100644 --- a/arch/arm/include/asm/smp_scu.h +++ b/arch/arm/include/asm/smp_scu.h @@ -1,7 +1,48 @@ #ifndef __ASMARM_ARCH_SCU_H #define __ASMARM_ARCH_SCU_H +#define SCU_PM_NORMAL 0 +#define SCU_PM_DORMANT 2 +#define SCU_PM_POWEROFF 3 + +#ifndef __ASSEMBLER__ + +#include <asm/cputype.h> + +static inline bool scu_a9_has_base(void) +{ + return read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9; +} + +static inline unsigned long scu_a9_get_base(void) +{ + unsigned long pa; + + asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (pa)); + + return pa; +} + +#ifdef CONFIG_HAVE_ARM_SCU unsigned int scu_get_core_count(void __iomem *); -void scu_enable(void __iomem *); +int scu_power_mode(void __iomem *, unsigned int); +#else +static inline unsigned int scu_get_core_count(void __iomem *scu_base) +{ + return 0; +} +static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode) +{ + return -EINVAL; +} +#endif + +#if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU) +void scu_enable(void __iomem *scu_base); +#else +static inline void scu_enable(void __iomem *scu_base) {} +#endif + +#endif #endif |