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Diffstat (limited to 'arch/arm/mach-mx35/usb_dr.c')
-rw-r--r--arch/arm/mach-mx35/usb_dr.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/arm/mach-mx35/usb_dr.c b/arch/arm/mach-mx35/usb_dr.c
new file mode 100644
index 000000000000..72ba040d9a62
--- /dev/null
+++ b/arch/arm/mach-mx35/usb_dr.c
@@ -0,0 +1,109 @@
+/*
+ * 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/platform_device.h>
+#include <linux/fsl_devices.h>
+#include <mach/arc_otg.h>
+#include "usb.h"
+
+/*
+ * platform data structs
+ * - Which one to use is determined by CONFIG options in usb.h
+ * - operating_mode plugged at run time
+ */
+static struct fsl_usb2_platform_data __maybe_unused dr_utmi_config = {
+ .name = "DR",
+ .platform_init = usbotg_init,
+ .platform_uninit = usbotg_uninit,
+ .phy_mode = FSL_USB2_PHY_UTMI_WIDE,
+ .power_budget = 500, /* 500 mA max power */
+ .gpio_usb_active = gpio_usbotg_utmi_active,
+ .gpio_usb_inactive = gpio_usbotg_utmi_inactive,
+ .transceiver = "utmi",
+};
+
+
+/*
+ * resources
+ */
+static struct resource otg_resources[] = {
+ [0] = {
+ .start = (u32)(USB_OTGREGS_BASE),
+ .end = (u32)(USB_OTGREGS_BASE + 0x1ff),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = MXC_INT_USB_OTG,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+
+static u64 dr_udc_dmamask = ~(u32) 0;
+static void dr_udc_release(struct device *dev)
+{
+}
+
+static u64 dr_otg_dmamask = ~(u32) 0;
+static void dr_otg_release(struct device *dev)
+{
+}
+
+/*
+ * platform device structs
+ * dev.platform_data field plugged at run time
+ */
+static struct platform_device __maybe_unused dr_udc_device = {
+ .name = "fsl-usb2-udc",
+ .id = -1,
+ .dev = {
+ .release = dr_udc_release,
+ .dma_mask = &dr_udc_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = otg_resources,
+ .num_resources = ARRAY_SIZE(otg_resources),
+};
+
+static struct platform_device __maybe_unused dr_otg_device = {
+ .name = "fsl-usb2-otg",
+ .id = -1,
+ .dev = {
+ .release = dr_otg_release,
+ .dma_mask = &dr_otg_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = otg_resources,
+ .num_resources = ARRAY_SIZE(otg_resources),
+};
+
+static int __init usb_dr_init(void)
+{
+ pr_debug("%s: \n", __func__);
+
+ /* i.MX35 1.0 should work in INCR mode */
+ if (cpu_is_mx35_rev(CHIP_REV_2_0) < 0) {
+ PDATA->change_ahb_burst = 1;
+ PDATA->ahb_burst_mode = 0;
+ }
+
+ dr_register_otg();
+ dr_register_host(otg_resources, ARRAY_SIZE(otg_resources));
+ dr_register_udc();
+
+ return 0;
+}
+
+module_init(usb_dr_init);