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authorPetr Vandrovec <petr@vandrovec.name>2007-07-20 07:44:44 -0400
committerJeff Garzik <jeff@garzik.org>2007-07-20 07:44:44 -0400
commitfe36cb53cfd82f3c0796a0826e1c9caf198c8f97 (patch)
tree81c85f1b6e8277ba075eae74e6dd4bec22106896 /drivers/ata/libata-sff.c
parentf3a03b0934fb83a030ccd3e6f1fbe845a9c44d49 (diff)
downloadlinux-fe36cb53cfd82f3c0796a0826e1c9caf198c8f97.tar.bz2
[libata] Fix reported task file values in sense data
ata_tf_read was setting HOB bit when lba48 command was submitted, but was not clearing it before reading "normal" data. As it is only place which sets HOB bit in control register, and register reads should not be affected by other bits, let's just clear it when we are done with reading upper bytes so non-48bit commands do not have to touch ctl at all. pata_scc suffered from same problem... Signed-off-by: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-sff.c')
-rw-r--r--drivers/ata/libata-sff.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 1190c6703bc4..6c289c7b1322 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -211,6 +211,8 @@ void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
tf->hob_lbal = ioread8(ioaddr->lbal_addr);
tf->hob_lbam = ioread8(ioaddr->lbam_addr);
tf->hob_lbah = ioread8(ioaddr->lbah_addr);
+ iowrite8(tf->ctl, ioaddr->ctl_addr);
+ ap->last_ctl = tf->ctl;
}
}