* [PATCH] sata-fsl: Apply link speed limits
@ 2015-02-19 20:05 Martin Hicks
2015-03-02 17:09 ` Tejun Heo
0 siblings, 1 reply; 2+ messages in thread
From: Martin Hicks @ 2015-02-19 20:05 UTC (permalink / raw)
To: Scott Wood, Kumar Gala; +Cc: linux-ide, linuxppc-dev
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@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@bork.org
Bork Consulting Inc. | +1 (613) 266-2296
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] sata-fsl: Apply link speed limits
2015-02-19 20:05 [PATCH] sata-fsl: Apply link speed limits Martin Hicks
@ 2015-03-02 17:09 ` Tejun Heo
0 siblings, 0 replies; 2+ messages in thread
From: Tejun Heo @ 2015-03-02 17:09 UTC (permalink / raw)
To: Martin Hicks; +Cc: Scott Wood, linux-ide, linuxppc-dev
On Thu, Feb 19, 2015 at 03:05:47PM -0500, Martin Hicks wrote:
>
>
> 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@bork.org>
Applied to libata/for-4.0-fixes.
Thanks.
--
tejun
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2015-03-02 17:09 ` Tejun Heo
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