[ARM PATCH] 2260/1: Rename IXP2000_IRQ_SWI to reduce user confusion

Patch from Lennert Buytenhek

IXP2000 interrupt source zero is a software-generated interrupt source,
but it is not an SWI in the ARM sense of the word.  Rename the interrupt
source to reduce any confusion.
  

Signed-off-by: Lennert Buytenhek
Signed-off-by: Deepak Saxena
Signed-off-by: Russell King

arch/arm/mach-ixp2000/core.c

@@ -352,7 +352,7 @@ void __init ixp2000_init_irq(void)
 	 * we mark the reserved IRQs as invalid. This makes
 	 * our mask/unmask code much simpler.
 	 */
-	for (irq = IRQ_IXP2000_SWI; irq <= IRQ_IXP2000_THDB3; irq++) {
+	for (irq = IRQ_IXP2000_SOFT_INT; irq <= IRQ_IXP2000_THDB3; irq++) {
 		if((1 << irq) & IXP2000_VALID_IRQ_MASK) {
 			set_irq_chip(irq, &ixp2000_irq_chip);
 			set_irq_handler(irq, do_level_IRQ);

include/asm-arm/arch-ixp2000/irqs.h

@@ -28,7 +28,7 @@
  * shift operation instead of having to map the IRQ number to
  * a HW IRQ number.
  */
-#define	IRQ_IXP2000_SWI			0 /* soft interrupt */
+#define	IRQ_IXP2000_SOFT_INT		0 /* soft interrupt */
 #define	IRQ_IXP2000_ERRSUM		1 /* OR of all bits in ErrorStatus reg*/
 #define	IRQ_IXP2000_UART		2
 #define	IRQ_IXP2000_GPIO		3