Re: [PATCH 1/1] [libata] pata-bf54x: Set ATAPI host state machineto control IDE device terminate sequence.

From: Jeff Garzik
Date: Mon May 19 2008 - 17:42:50 EST

Bryan Wu wrote:
From: Sonic Zhang <sonic.zhang@xxxxxxxxxx>

Set ATAPI host state machine to control IDE device terminate sequence.
Some IDE harddisk may assert terminate sequence in the middle of a
formal DMA transaction and resume later. Bit DETECT_TERM in ATAPI_CTRL
register determines whether the ATAPI host state machine or the kernel
driver should take care of this case.

Signed-off-by: Sonic Zhang <sonic.zhang@xxxxxxxxxx>
Signed-off-by: Bryan Wu <cooloney@xxxxxxxxxx>
drivers/ata/pata_bf54x.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index 9ab8973..5551610 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -911,7 +911,10 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc)
/* Reset all transfer count */
- /* Set transfer length to buffer len */
+ /* Set ATAPI state machine contorl in terminate sequence */
+ /* Set transfer length to buffer len */
for_each_sg(qc->sg, sg, qc->n_elem, si) {


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