From 8b14990639479c66cee0501932e741378332a085 Mon Sep 17 00:00:00 2001 From: nwhitehorn Date: Sat, 11 Sep 2010 22:09:16 +0000 Subject: ATAPI DMA does not seem to work completely reliably on Shasta controllers, especially in conjunction with ATA_CAM, so disable it for now. --- sys/powerpc/powermac/ata_kauai.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'sys/powerpc/powermac') diff --git a/sys/powerpc/powermac/ata_kauai.c b/sys/powerpc/powermac/ata_kauai.c index fd45061..3ad2a48 100644 --- a/sys/powerpc/powermac/ata_kauai.c +++ b/sys/powerpc/powermac/ata_kauai.c @@ -217,8 +217,10 @@ ata_kauai_probe(device_t dev) ch = &sc->sc_ch.sc_ch; compatstring = ofw_bus_get_compat(dev); - if (compatstring != NULL && strcmp(compatstring,"shasta-ata") == 0) + if (compatstring != NULL && strcmp(compatstring,"shasta-ata") == 0) { + ch->flags |= ATA_NO_ATAPI_DMA; sc->shasta = 1; + } /* Pre-K2 controllers apparently need this hack */ if (!sc->shasta && -- cgit v1.1