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Diffstat (limited to 'arch/arm/mach-ixp4xx/nslu2-pci.c')
-rw-r--r--arch/arm/mach-ixp4xx/nslu2-pci.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/arch/arm/mach-ixp4xx/nslu2-pci.c b/arch/arm/mach-ixp4xx/nslu2-pci.c
index 4429b8448b61..1eb5a90470bc 100644
--- a/arch/arm/mach-ixp4xx/nslu2-pci.c
+++ b/arch/arm/mach-ixp4xx/nslu2-pci.c
@@ -18,35 +18,38 @@
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/irq.h>
-
#include <asm/mach/pci.h>
#include <asm/mach-types.h>
+#define MAX_DEV 3
+#define IRQ_LINES 3
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define INTA 11
+#define INTB 10
+#define INTC 9
+#define INTD 8
+
void __init nslu2_pci_preinit(void)
{
- set_irq_type(IRQ_NSLU2_PCI_INTA, IRQ_TYPE_LEVEL_LOW);
- set_irq_type(IRQ_NSLU2_PCI_INTB, IRQ_TYPE_LEVEL_LOW);
- set_irq_type(IRQ_NSLU2_PCI_INTC, 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);
+ set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
ixp4xx_pci_preinit();
}
static int __init nslu2_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
- static int pci_irq_table[NSLU2_PCI_IRQ_LINES] = {
- IRQ_NSLU2_PCI_INTA,
- IRQ_NSLU2_PCI_INTB,
- IRQ_NSLU2_PCI_INTC,
+ static int pci_irq_table[IRQ_LINES] = {
+ IXP4XX_GPIO_IRQ(INTA),
+ IXP4XX_GPIO_IRQ(INTB),
+ IXP4XX_GPIO_IRQ(INTC),
};
- int irq = -1;
-
- if (slot >= 1 && slot <= NSLU2_PCI_MAX_DEV &&
- pin >= 1 && pin <= NSLU2_PCI_IRQ_LINES) {
- irq = pci_irq_table[(slot + pin - 2) % NSLU2_PCI_IRQ_LINES];
- }
+ if (slot >= 1 && slot <= MAX_DEV && pin >= 1 && pin <= IRQ_LINES)
+ return pci_irq_table[(slot + pin - 2) % IRQ_LINES];
- return irq;
+ return -1;
}
struct hw_pci __initdata nslu2_pci = {