From: Mikael Pettersson Date: Sat, 3 Mar 2007 19:57:44 +0000 (+0100) Subject: pata_legacy: fix io/irq mismatch X-Git-Tag: v2.6.21-rc3~4^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8b966dddc29899008fb178a533263afa8d1ad849;p=pandora-kernel.git pata_legacy: fix io/irq mismatch 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 Signed-off-by: Jeff Garzik --- Reading git-diff-tree failed