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authorSascha Hauer <s.hauer@pengutronix.de>2010-02-04 14:40:59 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2010-02-04 15:55:09 +0100
commitba593e5966440deec8684863e0cba9b502c4a377 (patch)
treeb0091c3cd9cd87045e90feb9b1bf295fa410dff0 /drivers/usb/gadget
parent9fd96bbb6a3a1fd9ba24e84a2d7ccc6ccb6beb60 (diff)
fsl_mx3_udc: Add i.MX35 support
The i.MX35 works fine with this driver, but we do not have the usb_ahb clock. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/fsl_mx3_udc.c31
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/usb/gadget/fsl_mx3_udc.c b/drivers/usb/gadget/fsl_mx3_udc.c
index 4bc2bf3d602..20a802ecaa1 100644
--- a/drivers/usb/gadget/fsl_mx3_udc.c
+++ b/drivers/usb/gadget/fsl_mx3_udc.c
@@ -17,6 +17,8 @@
#include <linux/fsl_devices.h>
#include <linux/platform_device.h>
+#include <mach/hardware.h>
+
static struct clk *mxc_ahb_clk;
static struct clk *mxc_usb_clk;
@@ -28,14 +30,16 @@ int fsl_udc_clk_init(struct platform_device *pdev)
pdata = pdev->dev.platform_data;
- mxc_ahb_clk = clk_get(&pdev->dev, "usb_ahb");
- if (IS_ERR(mxc_ahb_clk))
- return PTR_ERR(mxc_ahb_clk);
+ if (!cpu_is_mx35()) {
+ mxc_ahb_clk = clk_get(&pdev->dev, "usb_ahb");
+ if (IS_ERR(mxc_ahb_clk))
+ return PTR_ERR(mxc_ahb_clk);
- ret = clk_enable(mxc_ahb_clk);
- if (ret < 0) {
- dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n");
- goto eenahb;
+ ret = clk_enable(mxc_ahb_clk);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "clk_enable(\"usb_ahb\") failed\n");
+ goto eenahb;
+ }
}
/* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */
@@ -50,6 +54,7 @@ int fsl_udc_clk_init(struct platform_device *pdev)
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;
}
@@ -66,9 +71,11 @@ eclkrate:
clk_put(mxc_usb_clk);
mxc_usb_clk = NULL;
egusb:
- clk_disable(mxc_ahb_clk);
+ if (!cpu_is_mx35())
+ clk_disable(mxc_ahb_clk);
eenahb:
- clk_put(mxc_ahb_clk);
+ if (!cpu_is_mx35())
+ clk_put(mxc_ahb_clk);
return ret;
}
@@ -90,6 +97,8 @@ void fsl_udc_clk_release(void)
clk_disable(mxc_usb_clk);
clk_put(mxc_usb_clk);
}
- clk_disable(mxc_ahb_clk);
- clk_put(mxc_ahb_clk);
+ if (!cpu_is_mx35()) {
+ clk_disable(mxc_ahb_clk);
+ clk_put(mxc_ahb_clk);
+ }
}