diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx/nslu2-pci.c')
-rw-r--r-- | arch/arm/mach-ixp4xx/nslu2-pci.c | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/arch/arm/mach-ixp4xx/nslu2-pci.c b/arch/arm/mach-ixp4xx/nslu2-pci.c index 9665bb082107..1eb5a90470bc 100644 --- a/arch/arm/mach-ixp4xx/nslu2-pci.c +++ b/arch/arm/mach-ixp4xx/nslu2-pci.c | |||
@@ -21,43 +21,35 @@ | |||
21 | #include <asm/mach/pci.h> | 21 | #include <asm/mach/pci.h> |
22 | #include <asm/mach-types.h> | 22 | #include <asm/mach-types.h> |
23 | 23 | ||
24 | #define NSLU2_PCI_MAX_DEV 3 | 24 | #define MAX_DEV 3 |
25 | #define NSLU2_PCI_IRQ_LINES 3 | 25 | #define IRQ_LINES 3 |
26 | 26 | ||
27 | /* PCI controller GPIO to IRQ pin mappings */ | 27 | /* PCI controller GPIO to IRQ pin mappings */ |
28 | #define NSLU2_PCI_INTA_PIN 11 | 28 | #define INTA 11 |
29 | #define NSLU2_PCI_INTB_PIN 10 | 29 | #define INTB 10 |
30 | #define NSLU2_PCI_INTC_PIN 9 | 30 | #define INTC 9 |
31 | #define NSLU2_PCI_INTD_PIN 8 | 31 | #define INTD 8 |
32 | #define IRQ_NSLU2_PCI_INTA IRQ_IXP4XX_GPIO11 | ||
33 | #define IRQ_NSLU2_PCI_INTB IRQ_IXP4XX_GPIO10 | ||
34 | #define IRQ_NSLU2_PCI_INTC IRQ_IXP4XX_GPIO9 | ||
35 | 32 | ||
36 | void __init nslu2_pci_preinit(void) | 33 | void __init nslu2_pci_preinit(void) |
37 | { | 34 | { |
38 | set_irq_type(IRQ_NSLU2_PCI_INTA, IRQ_TYPE_LEVEL_LOW); | 35 | set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW); |
39 | set_irq_type(IRQ_NSLU2_PCI_INTB, IRQ_TYPE_LEVEL_LOW); | 36 | set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW); |
40 | set_irq_type(IRQ_NSLU2_PCI_INTC, IRQ_TYPE_LEVEL_LOW); | 37 | set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW); |
41 | |||
42 | ixp4xx_pci_preinit(); | 38 | ixp4xx_pci_preinit(); |
43 | } | 39 | } |
44 | 40 | ||
45 | static int __init nslu2_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | 41 | static int __init nslu2_map_irq(struct pci_dev *dev, u8 slot, u8 pin) |
46 | { | 42 | { |
47 | static int pci_irq_table[NSLU2_PCI_IRQ_LINES] = { | 43 | static int pci_irq_table[IRQ_LINES] = { |
48 | IRQ_NSLU2_PCI_INTA, | 44 | IXP4XX_GPIO_IRQ(INTA), |
49 | IRQ_NSLU2_PCI_INTB, | 45 | IXP4XX_GPIO_IRQ(INTB), |
50 | IRQ_NSLU2_PCI_INTC, | 46 | IXP4XX_GPIO_IRQ(INTC), |
51 | }; | 47 | }; |
52 | 48 | ||
53 | int irq = -1; | 49 | if (slot >= 1 && slot <= MAX_DEV && pin >= 1 && pin <= IRQ_LINES) |
54 | 50 | return pci_irq_table[(slot + pin - 2) % IRQ_LINES]; | |
55 | if (slot >= 1 && slot <= NSLU2_PCI_MAX_DEV && | ||
56 | pin >= 1 && pin <= NSLU2_PCI_IRQ_LINES) { | ||
57 | irq = pci_irq_table[(slot + pin - 2) % NSLU2_PCI_IRQ_LINES]; | ||
58 | } | ||
59 | 51 | ||
60 | return irq; | 52 | return -1; |
61 | } | 53 | } |
62 | 54 | ||
63 | struct hw_pci __initdata nslu2_pci = { | 55 | struct hw_pci __initdata nslu2_pci = { |