IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>

diff --git a/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
index 276c614..25d2c33 100644 (file)
--- a/arch/arm/mach-ixp4xx/gtwx5715-pci.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-pci.c
@@ -31,15 +31,9 @@
 #include <asm/mach/pci.h>
 
 #define SLOT0_DEVID    0
-#define SLOT0_INTA     10
-#define SLOT0_INTB     11
-
 #define SLOT1_DEVID    1
-#define SLOT1_INTA     11
-#define SLOT1_INTB     10
-
-#define SLOT_COUNT     2
-#define INT_PIN_COUNT  2
+#define INTA           10 /* slot 1 has INTA and INTB crossed */
+#define INTB           11
 
 /*
  * Slot 0 isn't actually populated with a card connector but
@@ -49,26 +43,22 @@
  */
 void __init gtwx5715_pci_preinit(void)
 {
-       set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
-       set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTB), IRQ_TYPE_LEVEL_LOW);
-       set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
-       set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTB), IRQ_TYPE_LEVEL_LOW);
+       set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+       set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
        ixp4xx_pci_preinit();
 }
 
 
 static int __init gtwx5715_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 {
-       int rc;
-       static int gtwx5715_irqmap[SLOT_COUNT][INT_PIN_COUNT] = {
-               {IXP4XX_GPIO_IRQ(SLOT0_INTA), IXP4XX_GPIO_IRQ(SLOT0_INTB)},
-               {IXP4XX_GPIO_IRQ(SLOT1_INTA), IXP4XX_GPIO_IRQ(SLOT1_INTB)},
-       };
+       int rc = -1;
 
-       if (slot >= SLOT_COUNT || pin >= INT_PIN_COUNT)
-               rc = -1;
-       else
-               rc = gtwx5715_irqmap[slot][pin - 1];
+       if ((slot == SLOT0_DEVID && pin == 1) ||
+           (slot == SLOT1_DEVID && pin == 2))
+               rc = IXP4XX_GPIO_IRQ(INTA);
+       else if ((slot == SLOT0_DEVID && pin == 2) ||
+                (slot == SLOT1_DEVID && pin == 1))
+               rc = IXP4XX_GPIO_IRQ(INTB);
 
        printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n",
               __func__, slot, pin, rc);