From: Dinh Nguyen <Dinh.Nguyen@freescale.com>
To: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
s.hauer@pengutronix.de, valentin.longchamp@epfl.ch,
daniel@caiaq.de, grant.likely@secretlab.ca,
bryan.wu@canonical.com, amit.kucheria@canonical.com,
Jun.Li@freescale.com, xiao-lizhang@freescale.com,
Dinh Nguyen <Dinh.Nguyen@freescale.com>
Subject: [PATCHv1 2.6.34-rc6 1/3] mxc: gadget: remove 60mhz clock requirement for freescale mx51 usb core
Date: Wed, 5 May 2010 17:56:09 -0500 [thread overview]
Message-ID: <1273100171-3235-2-git-send-email-Dinh.Nguyen@freescale.com> (raw)
In-Reply-To: <1273100171-3235-1-git-send-email-Dinh.Nguyen@freescale.com>
for mx51, usb core is clocked from sources that are not 60mhz.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
---
drivers/usb/gadget/fsl_mx3_udc.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/fsl_mx3_udc.c b/drivers/usb/gadget/fsl_mx3_udc.c
index 20a802e..d0b8bde 100644
--- a/drivers/usb/gadget/fsl_mx3_udc.c
+++ b/drivers/usb/gadget/fsl_mx3_udc.c
@@ -50,12 +50,14 @@ int fsl_udc_clk_init(struct platform_device *pdev)
goto egusb;
}
- freq = clk_get_rate(mxc_usb_clk);
- if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
- (freq < 59999000 || freq > 60001000)) {
- dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);
- ret = -EINVAL;
- goto eclkrate;
+ if (!cpu_is_mx51()) {
+ freq = clk_get_rate(mxc_usb_clk);
+ if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&
+ (freq < 59999000 || freq > 60001000)) {
+ dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);
+ ret = -EINVAL;
+ goto eclkrate;
+ }
}
ret = clk_enable(mxc_usb_clk);
--
1.6.0.4
next prev parent reply other threads:[~2010-05-05 22:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-05 22:56 PATCHv1 2.6.34-rc6 0/3-Enable usb gadget on freescale mx51 babbage hw Dinh Nguyen
2010-05-05 22:56 ` Dinh Nguyen [this message]
2010-05-05 22:56 ` [PATCHv1 2.6.34-rc6 2/3] mx5: change usb clock source from pll3 to pll2 Dinh Nguyen
2010-05-05 22:56 ` [PATCHv1 2.6.34-rc6 3/3] mx5: enable usb gadget for freescale mx51 babbage board Dinh Nguyen
2010-05-06 7:27 ` Sascha Hauer
2010-05-06 7:14 ` [PATCHv1 2.6.34-rc6 2/3] mx5: change usb clock source from pll3 to pll2 Sascha Hauer
2010-05-06 18:33 ` [PATCHv1 2.6.34-rc6 1/3] mxc: gadget: remove 60mhz clock requirement for freescale mx51 usb core Fabio Estevam
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