diff options
| author | Steve French <sfrench@us.ibm.com> | 2005-11-10 15:34:57 -0800 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-11-10 15:34:57 -0800 |
| commit | 9551583e55e26a0940894828c2d1066e9276325e (patch) | |
| tree | ff412949400da94aa788bd094ced2138e9175935 /include/asm-i386/ide.h | |
| parent | a2653ebab3a96c6e6183360821faa492c1f88c3f (diff) | |
| parent | 985834a1c3a2e9639145bd8ea16af6e25f2143ad (diff) | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'include/asm-i386/ide.h')
| -rw-r--r-- | include/asm-i386/ide.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-i386/ide.h b/include/asm-i386/ide.h index 79dfab87135..454440193ea 100644 --- a/include/asm-i386/ide.h +++ b/include/asm-i386/ide.h @@ -41,6 +41,12 @@ static __inline__ int ide_default_irq(unsigned long base) static __inline__ unsigned long ide_default_io_base(int index) { + /* + * If PCI is present then it is not safe to poke around + * the other legacy IDE ports. Only 0x1f0 and 0x170 are + * defined compatibility mode ports for PCI. A user can + * override this using ide= but we must default safe. + */ if (pci_find_device(PCI_ANY_ID, PCI_ANY_ID, NULL) == NULL) { switch(index) { case 2: return 0x1e8; |