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Subject[PATCH 3.13.y-ckt 02/60] ata: pmp: add quirk for Marvell 4140 SATA PMP
Date
3.13.11-ckt26 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lior Amsalem <alior@marvell.com>

commit 945b47441d83d2392ac9f984e0267ad521f24268 upstream.

This commit adds the necessary quirk to make the Marvell 4140 SATA PMP
work properly. This PMP doesn't like SRST on port number 4 (the host
port) so this commit marks this port as not supporting SRST.

Signed-off-by: Lior Amsalem <alior@marvell.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/ata/libata-pmp.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index 7ccc084..85aa761 100644
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -460,6 +460,13 @@ static void sata_pmp_quirks(struct ata_port *ap)
ATA_LFLAG_NO_SRST |
ATA_LFLAG_ASSUME_ATA;
}
+ } else if (vendor == 0x11ab && devid == 0x4140) {
+ /* Marvell 4140 quirks */
+ ata_for_each_link(link, ap, EDGE) {
+ /* port 4 is for SEMB device and it doesn't like SRST */
+ if (link->pmp == 4)
+ link->flags |= ATA_LFLAG_DISABLED;
+ }
}
}

--
1.9.1


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