ar71xx: add support for linux 4.4

[openwrt.git] / target / linux / ar71xx / patches-4.4 / 504-MIPS-ath79-add-ath79_device_reset_get.patch

diff --git a/target/linux/ar71xx/patches-4.4/504-MIPS-ath79-add-ath79_device_reset_get.patch b/target/linux/ar71xx/patches-4.4/504-MIPS-ath79-add-ath79_device_reset_get.patch
new file mode 100644 (file)
index 0000000..38d426e
--- /dev/null
+++ b/target/linux/ar71xx/patches-4.4/504-MIPS-ath79-add-ath79_device_reset_get.patch
@@ -0,0 +1,45 @@
+--- a/arch/mips/include/asm/mach-ath79/ath79.h
++++ b/arch/mips/include/asm/mach-ath79/ath79.h
+@@ -144,6 +144,7 @@ static inline u32 ath79_reset_rr(unsigne
+ 
+ void ath79_device_reset_set(u32 mask);
+ void ath79_device_reset_clear(u32 mask);
++u32 ath79_device_reset_get(u32 mask);
+ 
+ void ath79_flash_acquire(void);
+ void ath79_flash_release(void);
+--- a/arch/mips/ath79/common.c
++++ b/arch/mips/ath79/common.c
+@@ -144,6 +144,32 @@ void ath79_device_reset_clear(u32 mask)
+ }
+ EXPORT_SYMBOL_GPL(ath79_device_reset_clear);
+ 
++u32 ath79_device_reset_get(u32 mask)
++{
++      unsigned long flags;
++      u32 reg;
++      u32 ret;
++
++      if (soc_is_ar71xx())
++              reg = AR71XX_RESET_REG_RESET_MODULE;
++      else if (soc_is_ar724x())
++              reg = AR724X_RESET_REG_RESET_MODULE;
++      else if (soc_is_ar913x())
++              reg = AR913X_RESET_REG_RESET_MODULE;
++      else if (soc_is_ar933x())
++              reg = AR933X_RESET_REG_RESET_MODULE;
++      else if (soc_is_ar934x())
++              reg = AR934X_RESET_REG_RESET_MODULE;
++      else
++              BUG();
++
++      spin_lock_irqsave(&ath79_device_reset_lock, flags);
++      ret = ath79_reset_rr(reg);
++      spin_unlock_irqrestore(&ath79_device_reset_lock, flags);
++      return ret;
++}
++EXPORT_SYMBOL_GPL(ath79_device_reset_get);
++
+ void ath79_flash_acquire(void)
+ {
+       mutex_lock(&ath79_flash_mutex);