commit 5e5188108bcf9ab2e6f87b4b54924354040b0aa7
author Alan Cox <alan@lxorguk.ukuu.org.uk> Fri Mar 23 18:57:23 2007 +0000
committer Jeff Garzik <jeff@garzik.org> Wed Mar 28 02:05:13 2007 -0400
tree d0612ae233fde2091f107b3fcf9ad8940d33be79
parent 8c3c52a8f00536ce55dafa055b4a211f878f3901

pata_pdc202xx_old: LBA48 bug

In LBA48 mode we have to help the controller to get anything to work. The
chip provides a register giving word counts meant for ATAPI use which we
can use. However we need to load the count in words not bytes..

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/pata_pdc202xx_old.c

diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index acdc52c..0a14933 100644
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -195,7 +195,7 @@
 	/* Cases the state machine will not complete correctly without help */
 	if ((tf->flags & ATA_TFLAG_LBA48) ||  tf->protocol == ATA_PROT_ATAPI_DMA)
 	{
-		len = qc->nbytes;
+		len = qc->nbytes / 2;
 
 		if (tf->flags & ATA_TFLAG_WRITE)
 			len |= 0x06000000;