1 files changed, 114 insertions, 0 deletions
diff --git a/arch/arm/mach-mx51/usb_h1.c b/arch/arm/mach-mx51/usb_h1.c
new file mode 100644
index 000000000000..869ec45f0726
--- /dev/null
+++ b/arch/arm/mach-mx51/usb_h1.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2005-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <mach/arc_otg.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include "usb.h"
+#include "iomux.h"
+
+
+/*
+ * USB Host1 HS port
+ */
+static int gpio_usbh1_active(void)
+{
+	/* Set USBH1_STP to GPIO and toggle it */
+	mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_GPIO |
+			  IOMUX_CONFIG_SION);
+	gpio_request(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), "usbh1_stp");
+	gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), 0);
+	gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), 1);
+
+	/* Signal only used on MX51-3DS for reset to PHY.*/
+	if (machine_is_mx51_3ds()) {
+		mxc_request_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_ALT1);
+		mxc_iomux_set_pad(MX51_PIN_EIM_D17, PAD_CTL_DRV_HIGH |
+			  PAD_CTL_HYS_NONE | PAD_CTL_PUE_KEEPER |
+			  PAD_CTL_100K_PU | PAD_CTL_ODE_OPENDRAIN_NONE |
+			  PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+		gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_D17), "eim_d17");
+		gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_D17), 0);
+		gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D17), 1);
+	}
+
+	msleep(100);
+
+	return 0;
+}
+
+void gpio_usbh1_setback_stp(void)
+{
+	/* setback USBH1_STP to be function */
+	mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX51_PIN_USBH1_STP, PAD_CTL_SRE_FAST |
+			  PAD_CTL_DRV_HIGH | PAD_CTL_ODE_OPENDRAIN_NONE |
+			  PAD_CTL_PUE_KEEPER | PAD_CTL_PKE_ENABLE |
+			  PAD_CTL_HYS_ENABLE | PAD_CTL_DDR_INPUT_CMOS |
+			  PAD_CTL_DRV_VOT_LOW);
+	gpio_free(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP));
+}
+EXPORT_SYMBOL(gpio_usbh1_setback_stp);
+
+static void gpio_usbh1_inactive(void)
+{
+	/* Signal only used on MX51-3DS for reset to PHY.*/
+	if (machine_is_mx51_3ds()) {
+		gpio_free(IOMUX_TO_GPIO(MX51_PIN_EIM_D17));
+		mxc_free_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_GPIO);
+	}
+
+	mxc_free_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_GPIO);
+	gpio_free(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP));
+}
+
+static struct fsl_usb2_platform_data usbh1_config = {
+	.name = "Host 1",
+	.platform_init = fsl_usb_host_init,
+	.platform_uninit = fsl_usb_host_uninit,
+	.operating_mode = FSL_USB2_MPH_HOST,
+	.phy_mode = FSL_USB2_PHY_ULPI,
+	.power_budget = 500,	/* 500 mA max power */
+	.gpio_usb_active = gpio_usbh1_active,
+	.gpio_usb_inactive = gpio_usbh1_inactive,
+	.transceiver = "isp1504",
+};
+
+static struct resource usbh1_resources[] = {
+	[0] = {
+	       .start = (u32) (USB_H1REGS_BASE),
+	       .end = (u32) (USB_H1REGS_BASE + 0x1ff),
+	       .flags = IORESOURCE_MEM,
+	       },
+	[1] = {
+	       .start = MXC_INT_USB_H1,
+	       .flags = IORESOURCE_IRQ,
+	       },
+};
+
+static int __init usbh1_init(void)
+{
+	pr_debug("%s: \n", __func__);
+
+	host_pdev_register(usbh1_resources,
+			ARRAY_SIZE(usbh1_resources), &usbh1_config);
+
+	return 0;
+}
+
+module_init(usbh1_init);