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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-08-29 16:12:36 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-08-29 16:12:36 -0400 |
| commit | 2fca877b68b2b4fc5b94277858a1bedd46017cde (patch) | |
| tree | fd02725406299ba2f26354463b3c261721e9eb6b /arch/arm/mach-ixp2000/pci.c | |
| parent | ff40c6d3d1437ecdf295b8e39adcb06c3d6021ef (diff) | |
| parent | 02b3e4e2d71b6058ec11cc01c72ac651eb3ded2b (diff) | |
| download | kernel-crypto-2fca877b68b2b4fc5b94277858a1bedd46017cde.tar.gz kernel-crypto-2fca877b68b2b4fc5b94277858a1bedd46017cde.tar.xz kernel-crypto-2fca877b68b2b4fc5b94277858a1bedd46017cde.zip | |
/spare/repo/libata-dev branch 'v2.6.13'
Diffstat (limited to 'arch/arm/mach-ixp2000/pci.c')
| -rw-r--r-- | arch/arm/mach-ixp2000/pci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c index 5ff2f2718c5..0788fb2b5c1 100644 --- a/arch/arm/mach-ixp2000/pci.c +++ b/arch/arm/mach-ixp2000/pci.c @@ -198,6 +198,19 @@ clear_master_aborts(void) void __init ixp2000_pci_preinit(void) { +#ifndef CONFIG_IXP2000_SUPPORT_BROKEN_PCI_IO + /* + * Configure the PCI unit to properly byteswap I/O transactions, + * and verify that it worked. + */ + ixp2000_reg_write(IXP2000_PCI_CONTROL, + (*IXP2000_PCI_CONTROL | PCI_CONTROL_IEE)); + + if ((*IXP2000_PCI_CONTROL & PCI_CONTROL_IEE) == 0) + panic("IXP2000: PCI I/O is broken on this ixp model, and " + "the needed workaround has not been configured in"); +#endif + hook_fault_code(16+6, ixp2000_pci_abort_handler, SIGBUS, "PCI config cycle to non-existent device"); } |