ar71xx: add initial support for 3.2

Tested on the following boards:
  ALFA AP96
  TL-MR3220 v1
  TL-WR1043ND v1
  TL-WR2543ND v1
  TL-WR703N v1
  TL-WR741ND v1
  TL-WR741ND v4
  WNDR3700 v1
  WZR-HP-G300NH

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29868 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 37 insertions, 0 deletions

diff --git a/target/linux/ar71xx/patches-3.2/503-MIPS-ath79-add-flash-acquire-release.patch b/target/linux/ar71xx/patches-3.2/503-MIPS-ath79-add-flash-acquire-release.patch
new file mode 100644
index 0000000000..2c9cad1289
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.2/503-MIPS-ath79-add-flash-acquire-release.patch
@@ -0,0 +1,37 @@
+--- a/arch/mips/ath79/common.c
++++ b/arch/mips/ath79/common.c
+@@ -22,6 +22,7 @@
+ #include "common.h"
+ 
+ static DEFINE_SPINLOCK(ath79_device_reset_lock);
++static DEFINE_MUTEX(ath79_flash_mutex);
+ 
+ u32 ath79_cpu_freq;
+ EXPORT_SYMBOL_GPL(ath79_cpu_freq);
+@@ -107,3 +108,16 @@ void ath79_device_reset_clear(u32 mask)
+ 	spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
+ }
+ EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
++
++void ath79_flash_acquire(void)
++{
++	mutex_lock(&ath79_flash_mutex);
++}
++EXPORT_SYMBOL_GPL(ath79_flash_acquire);
++
++void ath79_flash_release(void)
++{
++	mutex_unlock(&ath79_flash_mutex);
++}
++EXPORT_SYMBOL_GPL(ath79_flash_release);
++
+--- a/arch/mips/include/asm/mach-ath79/ath79.h
++++ b/arch/mips/include/asm/mach-ath79/ath79.h
+@@ -126,4 +126,7 @@ static inline u32 ath79_reset_rr(unsigne
+ void ath79_device_reset_set(u32 mask);
+ void ath79_device_reset_clear(u32 mask);
+ 
++void ath79_flash_acquire(void);
++void ath79_flash_release(void);
++
+ #endif /* __ASM_MACH_ATH79_H */