| 1 | --- a/arch/mips/ath79/common.c |
| 2 | +++ b/arch/mips/ath79/common.c |
| 3 | @@ -22,6 +22,7 @@ |
| 4 | #include "common.h" |
| 5 | |
| 6 | static DEFINE_SPINLOCK(ath79_device_reset_lock); |
| 7 | +static DEFINE_MUTEX(ath79_flash_mutex); |
| 8 | |
| 9 | u32 ath79_cpu_freq; |
| 10 | EXPORT_SYMBOL_GPL(ath79_cpu_freq); |
| 11 | @@ -109,3 +110,16 @@ void ath79_device_reset_clear(u32 mask) |
| 12 | spin_unlock_irqrestore(&ath79_device_reset_lock, flags); |
| 13 | } |
| 14 | EXPORT_SYMBOL_GPL(ath79_device_reset_clear); |
| 15 | + |
| 16 | +void ath79_flash_acquire(void) |
| 17 | +{ |
| 18 | + mutex_lock(&ath79_flash_mutex); |
| 19 | +} |
| 20 | +EXPORT_SYMBOL_GPL(ath79_flash_acquire); |
| 21 | + |
| 22 | +void ath79_flash_release(void) |
| 23 | +{ |
| 24 | + mutex_unlock(&ath79_flash_mutex); |
| 25 | +} |
| 26 | +EXPORT_SYMBOL_GPL(ath79_flash_release); |
| 27 | + |
| 28 | --- a/arch/mips/include/asm/mach-ath79/ath79.h |
| 29 | +++ b/arch/mips/include/asm/mach-ath79/ath79.h |
| 30 | @@ -137,4 +137,7 @@ static inline u32 ath79_reset_rr(unsigne |
| 31 | void ath79_device_reset_set(u32 mask); |
| 32 | void ath79_device_reset_clear(u32 mask); |
| 33 | |
| 34 | +void ath79_flash_acquire(void); |
| 35 | +void ath79_flash_release(void); |
| 36 | + |
| 37 | #endif /* __ASM_MACH_ATH79_H */ |
| 38 | |
