On Mon, 2007-07-23 at 09:55 +1000, Benjamin Herrenschmidt wrote: > Note that with all your patches applied, it doesn't seem to auto-tune > the speed at boot anymore and doesn't enable DMA. I can make it do so > with hdparm -d1, in which case, for example, on this wallstreet, I get > MDMA2 which is correct, however, it seems to also set PIO0 which it > should set PIO4...
One of the problems is that you do XFER_PIO + pio in pmac_ide_set_pio_mode(), which is no good. XFER_PIO is a bad constant name and causes that sort of confusion :-) Fix is to use XFER_PIO_0 + pio. I'll send a patch fixing that plus a few other things on top of yours once I've found out what's up with DMA. I've enable autotune, I see it sending the 0x22 command, but hdparm still claims DMA isn't enabled. Cheers, Ben. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
