Add USB Gadget support for mx35pdk

The patch is baselined on:
git://git.pengutronix.de/git/imx/linux-2.6.git mxc-master

Signed-off-by: Harro Haan <hrhaan@yahoo.com>
---
 arch/arm/mach-mx3/clock-imx35.c |    3 +++
 arch/arm/mach-mx3/mx35pdk.c     |   12 ++++++++++++
 drivers/usb/gadget/Kconfig      |    2 +-
 3 files changed, 16 insertions(+), 1 deletion(-)

Index: linux-2.6.31/drivers/usb/gadget/Kconfig
===================================================================
--- linux-2.6.31.orig/drivers/usb/gadget/Kconfig	2009-11-25 17:57:01.000000000 +0100
+++ linux-2.6.31/drivers/usb/gadget/Kconfig	2009-11-25 18:13:28.000000000 +0100
@@ -156,7 +156,7 @@ config USB_ATMEL_USBA
 
 config USB_GADGET_FSL_USB2
 	boolean "Freescale Highspeed USB DR Peripheral Controller"
-	depends on FSL_SOC || ARCH_MXC
+	depends on FSL_SOC || ARCH_MXC || ARCH_MX35
 	select USB_GADGET_DUALSPEED
 	help
 	   Some of Freescale PowerPC processors have a High Speed
Index: linux-2.6.31/arch/arm/mach-mx3/mx35pdk.c
===================================================================
--- linux-2.6.31.orig/arch/arm/mach-mx3/mx35pdk.c	2009-11-25 17:57:01.000000000 +0100
+++ linux-2.6.31/arch/arm/mach-mx3/mx35pdk.c	2009-11-25 19:04:39.000000000 +0100
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/memory.h>
 #include <linux/gpio.h>
+#include <linux/fsl_devices.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -69,6 +70,15 @@ static struct pad_desc mx35pdk_pads[] = 
 	MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
 	MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
 	MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
+	/* USBOTG */
+	MX35_PAD_USBOTG_PWR__USB_TOP_USBOTG_PWR,
+	MX35_PAD_USBOTG_OC__USB_TOP_USBOTG_OC,
+};
+
+/* OTG config */
+static struct fsl_usb2_platform_data usb_pdata = {
+	.operating_mode	= FSL_USB2_DR_DEVICE,
+	.phy_mode	= FSL_USB2_PHY_UTMI_WIDE,
 };
 
 /*
@@ -81,6 +91,8 @@ static void __init mxc_board_init(void)
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 
 	mxc_register_device(&mxc_uart_device0, &uart_pdata);
+
+	mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
 }
 
 static void __init mx35pdk_timer_init(void)
Index: linux-2.6.31/arch/arm/mach-mx3/clock-imx35.c
===================================================================
--- linux-2.6.31.orig/arch/arm/mach-mx3/clock-imx35.c	2009-11-25 18:20:04.000000000 +0100
+++ linux-2.6.31/arch/arm/mach-mx3/clock-imx35.c	2009-11-25 18:29:08.000000000 +0100
@@ -387,6 +387,8 @@ DEFINE_CLOCK(csi_clk,    0, CCM_CGR3,  0
 DEFINE_CLOCK(iim_clk,    0, CCM_CGR3,  2, NULL, NULL);
 DEFINE_CLOCK(gpu2d_clk,  0, CCM_CGR3,  4, NULL, NULL);
 
+DEFINE_CLOCK(usbahb_clk, 0, 0,         0, get_rate_ahb, NULL);
+
 static int clk_dummy_enable(struct clk *clk)
 {
 	return 0;
@@ -471,6 +473,7 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK("mxc-ehci.1", "usb", usbotg_clk)
 	_REGISTER_CLOCK("mxc-ehci.2", "usb", usbotg_clk)
 	_REGISTER_CLOCK("fsl-usb2-udc", "usb", usbotg_clk)
+	_REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", usbahb_clk)
 	_REGISTER_CLOCK("imx-wdt.0", NULL, wdog_clk)
 	_REGISTER_CLOCK(NULL, "max", max_clk)
 	_REGISTER_CLOCK(NULL, "audmux", audmux_clk)

--