1 files changed, 91 insertions, 0 deletions
diff --git a/arch/arm/mach-mx51/usb_h2.c b/arch/arm/mach-mx51/usb_h2.c
new file mode 100644
index 000000000000..90de5a28733f
--- /dev/null
+++ b/arch/arm/mach-mx51/usb_h2.c
@@ -0,0 +1,91 @@
+/*
+ * 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 <asm/mach-types.h>
+#include <mach/arc_otg.h>
+#include "usb.h"
+#include "iomux.h"
+
+/*
+ * USB Host2 HS port
+ */
+static int gpio_usbh2_active(void)
+{
+	/* Set USBH2_STP to GPIO and toggle it */
+	mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_GPIO);
+	gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), "eim_a26");
+	gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 0);
+	gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 1);
+
+	msleep(100);
+
+	return 0;
+}
+
+void gpio_usbh2_setback_stp(void)
+{
+	/* setback USBH2_STP to be function */
+	mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2);
+}
+EXPORT_SYMBOL(gpio_usbh2_setback_stp);
+
+static void gpio_usbh2_inactive(void)
+{
+	gpio_free(IOMUX_TO_GPIO(MX51_PIN_EIM_A26));
+	mxc_free_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_GPIO);
+}
+
+static struct fsl_usb2_platform_data usbh2_config = {
+	.name = "Host 2",
+	.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_usbh2_active,
+	.gpio_usb_inactive = gpio_usbh2_inactive,
+	.transceiver = "isp1504",
+};
+
+static struct resource usbh2_resources[] = {
+	[0] = {
+	       .start = (u32) (USB_H2REGS_BASE),
+	       .end = (u32) (USB_H2REGS_BASE + 0x1ff),
+	       .flags = IORESOURCE_MEM,
+	       },
+	[1] = {
+	       .start = MXC_INT_USB_H2,
+	       .flags = IORESOURCE_IRQ,
+	       },
+};
+
+static int __init usbh2_init(void)
+{
+	pr_debug("%s: \n", __func__);
+
+	if (machine_is_mx51_3ds() ||
+	    (machine_is_mx51_babbage() && (cpu_is_mx51_rev(CHIP_REV_2_0) >= 1)))
+		return 0;
+
+	host_pdev_register(usbh2_resources, ARRAY_SIZE(usbh2_resources),
+			   &usbh2_config);
+	return 0;
+}
+
+module_init(usbh2_init);
+