diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/pci/fixup-ip32.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/pci/fixup-ip32.c')
-rw-r--r-- | arch/mips/pci/fixup-ip32.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/pci/fixup-ip32.c b/arch/mips/pci/fixup-ip32.c new file mode 100644 index 000000000000..3e66b0aa63ca --- /dev/null +++ b/arch/mips/pci/fixup-ip32.c | |||
@@ -0,0 +1,51 @@ | |||
1 | #include <linux/init.h> | ||
2 | #include <linux/kernel.h> | ||
3 | #include <linux/pci.h> | ||
4 | #include <asm/ip32/ip32_ints.h> | ||
5 | /* | ||
6 | * O2 has up to 5 PCI devices connected into the MACE bridge. The device | ||
7 | * map looks like this: | ||
8 | * | ||
9 | * 0 aic7xxx 0 | ||
10 | * 1 aic7xxx 1 | ||
11 | * 2 expansion slot | ||
12 | * 3 N/C | ||
13 | * 4 N/C | ||
14 | */ | ||
15 | |||
16 | #define SCSI0 MACEPCI_SCSI0_IRQ | ||
17 | #define SCSI1 MACEPCI_SCSI1_IRQ | ||
18 | #define INTA0 MACEPCI_SLOT0_IRQ | ||
19 | #define INTA1 MACEPCI_SLOT1_IRQ | ||
20 | #define INTA2 MACEPCI_SLOT2_IRQ | ||
21 | #define INTB MACEPCI_SHARED0_IRQ | ||
22 | #define INTC MACEPCI_SHARED1_IRQ | ||
23 | #define INTD MACEPCI_SHARED2_IRQ | ||
24 | static char irq_tab_mace[][5] __initdata = { | ||
25 | /* Dummy INT#A INT#B INT#C INT#D */ | ||
26 | {0, 0, 0, 0, 0}, /* This is placeholder row - never used */ | ||
27 | {0, SCSI0, SCSI0, SCSI0, SCSI0}, | ||
28 | {0, SCSI1, SCSI1, SCSI1, SCSI1}, | ||
29 | {0, INTA0, INTB, INTC, INTD}, | ||
30 | {0, INTA1, INTC, INTD, INTB}, | ||
31 | {0, INTA2, INTD, INTB, INTC}, | ||
32 | }; | ||
33 | |||
34 | |||
35 | /* | ||
36 | * Given a PCI slot number (a la PCI_SLOT(...)) and the interrupt pin of | ||
37 | * the device (1-4 => A-D), tell what irq to use. Note that we don't | ||
38 | * in theory have slots 4 and 5, and we never normally use the shared | ||
39 | * irqs. I suppose a device without a pin A will thank us for doing it | ||
40 | * right if there exists such a broken piece of crap. | ||
41 | */ | ||
42 | int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | ||
43 | { | ||
44 | return irq_tab_mace[slot][pin]; | ||
45 | } | ||
46 | |||
47 | /* Do platform specific device initialization at pci_enable_device() time */ | ||
48 | int pcibios_plat_dev_init(struct pci_dev *dev) | ||
49 | { | ||
50 | return 0; | ||
51 | } | ||