[PATCH] sata-fsl: Apply link speed limits

Martin Hicks mort at bork.org
Fri Feb 20 07:05:47 AEDT 2015



The driver was ignoring limits requested by libata.force.  The output
would look like:

fsl-sata ffe18000.sata: Sata FSL Platform/CSB Driver init
ata1: FORCE: PHY spd limit set to 1.5Gbps
ata1: SATA max UDMA/133 irq 74
ata1: Signature Update detected @ 0 msecs
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 310)

Signed-off-by: Martin Hicks <mort at bork.org>
---
 drivers/ata/sata_fsl.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index f9054cd..a9b5508 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -868,6 +868,8 @@ try_offline_again:
 	 * PHY reset should remain asserted for atleast 1ms
 	 */
 	ata_msleep(ap, 1);
+	
+	sata_set_spd(link);
 
 	/*
 	 * Now, bring the host controller online again, this can take time
-- 
1.7.10.4


-- 
Martin Hicks P.Eng.    |      mort at bork.org
Bork Consulting Inc.   |  +1 (613) 266-2296


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