From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Eric Nelson <eric.nelson@boundarydevices.com>,
Marek Vasut <marex@denx.de>, Shawn Guo <shawn.guo@linaro.org>,
Richard Zhu <r65037@freescale.com>,
Linux-IDE <linux-ide@vger.kernel.org>, Tejun Heo <tj@kernel.org>
Subject: [PATCH 3.12 097/144] ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
Date: Mon, 6 Jan 2014 14:37:38 -0800 [thread overview]
Message-ID: <20140106223748.140256754@linuxfoundation.org> (raw)
In-Reply-To: <20140106223745.326293132@linuxfoundation.org>
3.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: Marek Vasut <marex@denx.de>
commit 10becdb402af4fd4808a0491a726b96128c41076 upstream.
We must clear this IMX6Q_GPR13_SATA_MPLL_CLK_EN bit on i.MX6Q, otherwise
Linux will fail to find the attached drive on some boards.
This entire fix was:
Reported-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/ata/ahci_imx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -60,7 +60,7 @@ static int imx6q_sata_init(struct device
/*
* set PHY Paremeters, two steps to configure the GPR13,
* one write for rest of parameters, mask of first write
- * is 0x07fffffd, and the other one write for setting
+ * is 0x07ffffff, and the other one write for setting
* the mpll_clk_en.
*/
regmap_update_bits(imxpriv->gpr, 0x34, IMX6Q_GPR13_SATA_RX_EQ_VAL_MASK
@@ -71,6 +71,7 @@ static int imx6q_sata_init(struct device
| IMX6Q_GPR13_SATA_TX_ATTEN_MASK
| IMX6Q_GPR13_SATA_TX_BOOST_MASK
| IMX6Q_GPR13_SATA_TX_LVL_MASK
+ | IMX6Q_GPR13_SATA_MPLL_CLK_EN
| IMX6Q_GPR13_SATA_TX_EDGE_RATE
, IMX6Q_GPR13_SATA_RX_EQ_VAL_3_0_DB
| IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA2M
parent reply other threads:[~2014-01-06 22:37 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20140106223745.326293132@linuxfoundation.org>]
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