ar71xx: add ar71xx_device_reset_rmw helper

[openwrt/openwrt.git] / target / linux / ar71xx / files / arch / mips / ar71xx / ar71xx.c

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
index ef956fbf4d10eeeea669123ca6f7eb90105e35f7..93cbe5331f8af848d814dbe8a6f4a79696d92e30 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c
@@ -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;