[ar71xx] fix MISC IRQ handling on the AR7240

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17098 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c b/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
index 0f7190a..6dcd987 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/irq.c
@@ -297,37 +297,30 @@ static void ar71xx_misc_irq_unmask(unsigned int irq)
        ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_ENABLE);
 }
 
-static void ar724x_misc_irq_unmask(unsigned int irq)
+static void ar71xx_misc_irq_mask(unsigned int irq)
 {
        irq -= AR71XX_MISC_IRQ_BASE;
        ar71xx_reset_wr(AR71XX_RESET_REG_MISC_INT_ENABLE,
-               ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_ENABLE) | (1 << irq));
+               ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_ENABLE) & ~(1 << irq));
 
        /* flush write */
        ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_ENABLE);
-
-       ar71xx_reset_wr(AR71XX_RESET_REG_MISC_INT_STATUS,
-               ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_STATUS) & ~(1 << irq));
-
-       /* flush write */
-       ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_STATUS);
 }
 
-static void ar71xx_misc_irq_mask(unsigned int irq)
+static void ar724x_misc_irq_ack(unsigned int irq)
 {
        irq -= AR71XX_MISC_IRQ_BASE;
-       ar71xx_reset_wr(AR71XX_RESET_REG_MISC_INT_ENABLE,
-               ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_ENABLE) & ~(1 << irq));
+       ar71xx_reset_wr(AR71XX_RESET_REG_MISC_INT_STATUS,
+               ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_STATUS) & ~(1 << irq));
 
        /* flush write */
-       ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_ENABLE);
+       ar71xx_reset_rr(AR71XX_RESET_REG_MISC_INT_STATUS);
 }
 
 static struct irq_chip ar71xx_misc_irq_chip = {
        .name           = "AR71XX MISC",
        .unmask         = ar71xx_misc_irq_unmask,
        .mask           = ar71xx_misc_irq_mask,
-       .mask_ack       = ar71xx_misc_irq_mask,
 };
 
 static struct irqaction ar71xx_misc_irqaction = {
@@ -343,7 +336,9 @@ static void __init ar71xx_misc_irq_init(void)
        ar71xx_reset_wr(AR71XX_RESET_REG_MISC_INT_STATUS, 0);
 
        if (ar71xx_soc == AR71XX_SOC_AR7240)
-               ar71xx_misc_irq_chip.unmask = ar724x_misc_irq_unmask;
+               ar71xx_misc_irq_chip.ack = ar724x_misc_irq_ack;
+       else
+               ar71xx_misc_irq_chip.mask_ack = ar71xx_misc_irq_mask;
 
        for (i = AR71XX_MISC_IRQ_BASE;
             i < AR71XX_MISC_IRQ_BASE + AR71XX_MISC_IRQ_COUNT; i++) {