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| author | David Woodhouse <dwmw2@infradead.org> | 2007-01-01 19:31:15 +0000 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-01-26 17:27:40 -0500 |
| commit | 8cdf92a98fa0f91068615443f2a8597b7f2c34ca (patch) | |
| tree | c33ae8216599533068dbcf2ef46c19a1f5b942a9 /include/asm-powerpc | |
| parent | dfd7a3db3898e299bdc25f0c77081a8632b3a73c (diff) | |
| download | kernel_samsung_smdk4412-8cdf92a98fa0f91068615443f2a8597b7f2c34ca.zip kernel_samsung_smdk4412-8cdf92a98fa0f91068615443f2a8597b7f2c34ca.tar.gz kernel_samsung_smdk4412-8cdf92a98fa0f91068615443f2a8597b7f2c34ca.tar.bz2 | |
Fix Maple PATA IRQ assignment.
On the Maple board, the AMD8111 IDE is in legacy mode... except that it
appears on IRQ 20 instead of IRQ 15. For drivers/ide this was handled by
the architecture's "pci_get_legacy_ide_irq()" function, but in libata we
just hard-code the numbers 14 and 15.
This patch provides asm-powerpc/libata-portmap.h which maps the IRQ as
appropriate, having added a pci_dev argument to the
ATA_{PRIM,SECOND}ARY_IRQ macros.
There's probably a better way to do this -- especially if we observe
that the _only_ case in which this seemingly-generic
"pci_get_legacy_ide_irq()" function returns anything other than 14 and
15 for primary and secondary respectively is the case of the AMD8111 on
the Maple board -- couldn't we handle that with a special case in the
pata_amd driver, or perhaps with a PCI quirk for Maple to switch it into
native mode during early boot and assign resources properly?
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/libata-portmap.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-powerpc/libata-portmap.h b/include/asm-powerpc/libata-portmap.h new file mode 100644 index 0000000..4d85180 --- /dev/null +++ b/include/asm-powerpc/libata-portmap.h @@ -0,0 +1,12 @@ +#ifndef __ASM_POWERPC_LIBATA_PORTMAP_H +#define __ASM_POWERPC_LIBATA_PORTMAP_H + +#define ATA_PRIMARY_CMD 0x1F0 +#define ATA_PRIMARY_CTL 0x3F6 +#define ATA_PRIMARY_IRQ(dev) pci_get_legacy_ide_irq(dev, 0) + +#define ATA_SECONDARY_CMD 0x170 +#define ATA_SECONDARY_CTL 0x376 +#define ATA_SECONDARY_IRQ(dev) pci_get_legacy_ide_irq(dev, 1) + +#endif |