Jeff Garzik wrote: > Tejun Heo wrote: >> and thus clear DRQ, right? Stuck DRQ after SRST seems odd to me. > > Unfortunately not odd on ata_piix, which can get stuck DRQ-on somewhere > deep inside its IDE emulation engine. And neither draining the FIFO nor > SRST nor a couple other tricks ever helped. The only thing that seemed > to make any difference was an enable/disable reset via our beloved PCS > register. OIC, it's the SFF emulation which doesn't reset itself on SRST. So, flipping PCS helps. Maybe we should do that in prereset? -- tejun - 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
