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authorMarek Vasut <marex@denx.de>2013-11-25 09:47:00 +0100
committerTejun Heo <tj@kernel.org>2013-12-03 07:39:19 -0500
commit10becdb402af4fd4808a0491a726b96128c41076 (patch)
tree42118dbf98017cafdcc89bcbd5421c798d38ccac /drivers/ata
parent87809942d3fa60bafb7a58d0bdb1c79e90a6821d (diff)
downloadop-kernel-dev-10becdb402af4fd4808a0491a726b96128c41076.zip
op-kernel-dev-10becdb402af4fd4808a0491a726b96128c41076.tar.gz
ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
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> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/ahci_imx.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index ae2d73f..3e23e99 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -113,7 +113,7 @@ static int imx6q_sata_init(struct device *dev, void __iomem *mmio)
/*
* 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
@@ -124,6 +124,7 @@ static int imx6q_sata_init(struct device *dev, void __iomem *mmio)
| 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
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