CRIS: v32: Better irq mapping code

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>

arch/cris/arch-v32/kernel/irq.c

@@ -97,7 +97,11 @@ extern void breakh_BUG(void);
 /*
  * Build the IRQ handler stubs using macros from irq.h.
  */
+#ifdef CONFIG_CRIS_MACH_ARTPEC3
+BUILD_TIMER_IRQ(0x31, 0)
+#else
 BUILD_IRQ(0x31)
+#endif
 BUILD_IRQ(0x32)
 BUILD_IRQ(0x33)
 BUILD_IRQ(0x34)
@@ -123,7 +127,11 @@ BUILD_IRQ(0x47)
 BUILD_IRQ(0x48)
 BUILD_IRQ(0x49)
 BUILD_IRQ(0x4a)
+#ifdef CONFIG_ETRAXFS
+BUILD_TIMER_IRQ(0x4b, 0)
+#else
 BUILD_IRQ(0x4b)
+#endif
 BUILD_IRQ(0x4c)
 BUILD_IRQ(0x4d)
 BUILD_IRQ(0x4e)
@@ -199,25 +207,20 @@ block_irq(int irq, int cpu)
         unsigned long flags;
 
 	spin_lock_irqsave(&irq_lock, flags);
-	if (irq - FIRST_IRQ < 32)
+	/* Remember, 1 let thru, 0 block. */
+	if (irq - FIRST_IRQ < 32) {
 		intr_mask = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
 			rw_mask, 0);
-	else
-		intr_mask = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
-			rw_mask, 1);
-
-	/* Remember; 1 let thru, 0 block. */
-	if (irq - FIRST_IRQ < 32)
 		intr_mask &= ~(1 << (irq - FIRST_IRQ));
-	else
-		intr_mask &= ~(1 << (irq - FIRST_IRQ - 32));
-
-	if (irq - FIRST_IRQ < 32)
 		REG_WR_INT_VECT(intr_vect, irq_regs[cpu], rw_mask,
 			0, intr_mask);
-	else
+	} else {
+		intr_mask = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
+			rw_mask, 1);
+		intr_mask &= ~(1 << (irq - FIRST_IRQ - 32));
 		REG_WR_INT_VECT(intr_vect, irq_regs[cpu], rw_mask,
 			1, intr_mask);
+	}
         spin_unlock_irqrestore(&irq_lock, flags);
 }
 
@@ -228,26 +231,20 @@ unblock_irq(int irq, int cpu)
         unsigned long flags;
 
         spin_lock_irqsave(&irq_lock, flags);
-	if (irq - FIRST_IRQ < 32)
+	/* Remember, 1 let thru, 0 block. */
+	if (irq - FIRST_IRQ < 32) {
 		intr_mask = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
 			rw_mask, 0);
-	else
-		intr_mask = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
-			rw_mask, 1);
-
-	/* Remember; 1 let thru, 0 block. */
-	if (irq - FIRST_IRQ < 32)
 		intr_mask |= (1 << (irq - FIRST_IRQ));
-	else
-		intr_mask |= (1 << (irq - FIRST_IRQ - 32));
-
-	if (irq - FIRST_IRQ < 32)
 		REG_WR_INT_VECT(intr_vect, irq_regs[cpu], rw_mask,
 			0, intr_mask);
-	else
+	} else {
+		intr_mask = REG_RD_INT_VECT(intr_vect, irq_regs[cpu],
+			rw_mask, 1);
+		intr_mask |= (1 << (irq - FIRST_IRQ - 32));
 		REG_WR_INT_VECT(intr_vect, irq_regs[cpu], rw_mask,
 			1, intr_mask);
-
+	}
         spin_unlock_irqrestore(&irq_lock, flags);
 }