2 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
3 * Copyright (C) 2010 Freescale Semiconductor, Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 #include <linux/platform_device.h>
18 #include <linux/platform_data/usb-ehci-mxc.h>
23 #define USBCTRL_OTGBASE_OFFSET 0x600
25 #define MX27_OTG_SIC_SHIFT 29
26 #define MX27_OTG_SIC_MASK (0x3 << MX27_OTG_SIC_SHIFT)
27 #define MX27_OTG_PM_BIT (1 << 24)
29 #define MX27_H2_SIC_SHIFT 21
30 #define MX27_H2_SIC_MASK (0x3 << MX27_H2_SIC_SHIFT)
31 #define MX27_H2_PM_BIT (1 << 16)
32 #define MX27_H2_DT_BIT (1 << 5)
34 #define MX27_H1_SIC_SHIFT 13
35 #define MX27_H1_SIC_MASK (0x3 << MX27_H1_SIC_SHIFT)
36 #define MX27_H1_PM_BIT (1 << 8)
37 #define MX27_H1_DT_BIT (1 << 4)
39 int mx27_initialize_usb_hw(int port, unsigned int flags)
43 v = readl(MX27_IO_ADDRESS(MX27_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
46 case 0: /* OTG port */
47 v &= ~(MX27_OTG_SIC_MASK | MX27_OTG_PM_BIT);
48 v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_OTG_SIC_SHIFT;
50 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
54 v &= ~(MX27_H1_SIC_MASK | MX27_H1_PM_BIT | MX27_H1_DT_BIT);
55 v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_H1_SIC_SHIFT;
57 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
60 if (!(flags & MXC_EHCI_TTL_ENABLED))
65 v &= ~(MX27_H2_SIC_MASK | MX27_H2_PM_BIT | MX27_H2_DT_BIT);
66 v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_H2_SIC_SHIFT;
68 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
71 if (!(flags & MXC_EHCI_TTL_ENABLED))
79 writel(v, MX27_IO_ADDRESS(MX27_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));