Commit b6e7b447 authored by Sonic Zhang's avatar Sonic Zhang Committed by Jeff Garzik

pata-bf54x: Set ATAPI HSM to control IDE device terminate sequence.

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: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 860da5e5
...@@ -911,6 +911,9 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc) ...@@ -911,6 +911,9 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc)
/* Reset all transfer count */ /* Reset all transfer count */
ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base) | TFRCNT_RST); ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base) | TFRCNT_RST);
/* Set ATAPI state machine contorl in terminate sequence */
ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base) | END_ON_TERM);
/* Set transfer length to buffer len */ /* Set transfer length to buffer len */
for_each_sg(qc->sg, sg, qc->n_elem, si) { for_each_sg(qc->sg, sg, qc->n_elem, si) {
ATAPI_SET_XFER_LEN(base, (sg_dma_len(sg) >> 1)); ATAPI_SET_XFER_LEN(base, (sg_dma_len(sg) >> 1));
......
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