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37 lines
996 B
37 lines
996 B
--- a/arch/mips/ath79/common.c
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+++ b/arch/mips/ath79/common.c
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@@ -22,6 +22,7 @@
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#include "common.h"
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static DEFINE_SPINLOCK(ath79_device_reset_lock);
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+static DEFINE_MUTEX(ath79_flash_mutex);
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u32 ath79_cpu_freq;
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EXPORT_SYMBOL_GPL(ath79_cpu_freq);
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@@ -109,3 +110,16 @@ void ath79_device_reset_clear(u32 mask)
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spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
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}
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EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
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+
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+void ath79_flash_acquire(void)
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+{
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+ mutex_lock(&ath79_flash_mutex);
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+}
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+EXPORT_SYMBOL_GPL(ath79_flash_acquire);
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+
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+void ath79_flash_release(void)
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+{
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+ mutex_unlock(&ath79_flash_mutex);
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+}
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+EXPORT_SYMBOL_GPL(ath79_flash_release);
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+
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--- a/arch/mips/include/asm/mach-ath79/ath79.h
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+++ b/arch/mips/include/asm/mach-ath79/ath79.h
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@@ -137,4 +137,7 @@ static inline u32 ath79_reset_rr(unsigne
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void ath79_device_reset_set(u32 mask);
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void ath79_device_reset_clear(u32 mask);
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+void ath79_flash_acquire(void);
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+void ath79_flash_release(void);
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+
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#endif /* __ASM_MACH_ATH79_H */
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