On Sat, Mar 03, 2007 at 08:57:44PM +0100, Mikael Pettersson wrote: > pata_legacy fails to detect the disk on my old ISA/VLB 486: > it starts to probe io=0x1f0 ctr=0x3f6 irq=15, complains > loudly about IDENTIFYs timing out, and finally fails. > (Sorry I couldn't capture the kernel's boot messages.) > > It turns out that the driver's mapping from io to irq in > legacy_irq[] is wrong: index 0 for io=0x1f0 has irq=15 but > should have irq=14, and index 1 for io=0x170 has irq=14 but > should have irq=15. This is confirmed by a comparison with > include/asm-i386/ide.h:ide_default_irq(). > > This patch swaps the first two elements in legacy_irq[], > which makes pata_legacy work on my 486. > > Signed-off-by: Mikael Pettersson <mikpe@xxxxxxxx> Acked-by: Alan Cox <alan@xxxxxxxxxx> - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
