From: Martin Hicks <mort@bork.org>
To: Scott Wood <scottwood@freescale.com>,
Kumar Gala <galak@kernel.crashing.org>
Cc: linux-ide@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH] sata-fsl: Apply link speed limits
Date: Thu, 19 Feb 2015 15:05:47 -0500 [thread overview]
Message-ID: <20150219200547.GA25730@darwin.bork.org> (raw)
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
next reply other threads:[~2015-02-19 20:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-19 20:05 Martin Hicks [this message]
2015-03-02 17:09 ` [PATCH] sata-fsl: Apply link speed limits Tejun Heo
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