ar71xx: add ar71xx_device_reset_rmw helper
authorGabor Juhos <juhosg@openwrt.org>
Wed, 21 Sep 2011 11:47:50 +0000 (11:47 +0000)
committerGabor Juhos <juhosg@openwrt.org>
Wed, 21 Sep 2011 11:47:50 +0000 (11:47 +0000)
SVN-Revision: 28275

target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h

index ef956fb..93cbe53 100644 (file)
@@ -153,6 +153,54 @@ void ar71xx_device_start(u32 mask)
 }
 EXPORT_SYMBOL_GPL(ar71xx_device_start);
 
+void ar71xx_device_reset_rmw(u32 clear, u32 set)
+{
+       unsigned long flags;
+       unsigned int reg;
+       u32 t;
+
+       switch (ar71xx_soc) {
+       case AR71XX_SOC_AR7130:
+       case AR71XX_SOC_AR7141:
+       case AR71XX_SOC_AR7161:
+               reg = AR71XX_RESET_REG_RESET_MODULE;
+               break;
+
+       case AR71XX_SOC_AR7240:
+       case AR71XX_SOC_AR7241:
+       case AR71XX_SOC_AR7242:
+               reg = AR724X_RESET_REG_RESET_MODULE;
+               break;
+
+       case AR71XX_SOC_AR9130:
+       case AR71XX_SOC_AR9132:
+               reg = AR91XX_RESET_REG_RESET_MODULE;
+               break;
+
+       case AR71XX_SOC_AR9330:
+       case AR71XX_SOC_AR9331:
+               reg = AR933X_RESET_REG_RESET_MODULE;
+               break;
+
+       case AR71XX_SOC_AR9341:
+       case AR71XX_SOC_AR9342:
+       case AR71XX_SOC_AR9344:
+               reg = AR934X_RESET_REG_RESET_MODULE;
+               break;
+
+       default:
+               BUG();
+       }
+
+       spin_lock_irqsave(&ar71xx_device_lock, flags);
+       t = ar71xx_reset_rr(reg);
+       t &= ~clear;
+       t |= set;
+       ar71xx_reset_wr(reg, t);
+       spin_unlock_irqrestore(&ar71xx_device_lock, flags);
+}
+EXPORT_SYMBOL_GPL(ar71xx_device_reset_rmw);
+
 int ar71xx_device_stopped(u32 mask)
 {
        unsigned long flags;
index f78ae16..ec5e0bb 100644 (file)
@@ -724,6 +724,7 @@ static inline u32 ar71xx_reset_rr(unsigned reg)
 
 void ar71xx_device_stop(u32 mask);
 void ar71xx_device_start(u32 mask);
+void ar71xx_device_reset_rmw(u32 clear, u32 set);
 int ar71xx_device_stopped(u32 mask);
 
 /*