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>
19 #include <mach/hardware.h>
20 #include <mach/mxc_ehci.h>
22 #define USBCTRL_OTGBASE_OFFSET 0x600
24 #define MX25_OTG_SIC_SHIFT 29
25 #define MX25_OTG_SIC_MASK (0x3 << MX25_OTG_SIC_SHIFT)
26 #define MX25_OTG_PM_BIT (1 << 24)
28 #define MX25_H1_SIC_SHIFT 21
29 #define MX25_H1_SIC_MASK (0x3 << MX25_H1_SIC_SHIFT)
30 #define MX25_H1_PM_BIT (1 << 8)
31 #define MX25_H1_IPPUE_UP_BIT (1 << 7)
32 #define MX25_H1_IPPUE_DOWN_BIT (1 << 6)
33 #define MX25_H1_TLL_BIT (1 << 5)
34 #define MX25_H1_USBTE_BIT (1 << 4)
36 int mx25_initialize_usb_hw(int port, unsigned int flags)
40 v = readl(MX25_IO_ADDRESS(MX25_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
43 case 0: /* OTG port */
44 v &= ~(MX25_OTG_SIC_MASK | MX25_OTG_PM_BIT);
45 v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX25_OTG_SIC_SHIFT;
47 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
52 v &= ~(MX25_H1_SIC_MASK | MX25_H1_PM_BIT | MX25_H1_TLL_BIT |
53 MX25_H1_USBTE_BIT | MX25_H1_IPPUE_DOWN_BIT | MX25_H1_IPPUE_UP_BIT);
54 v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX25_H1_SIC_SHIFT;
56 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
59 if (!(flags & MXC_EHCI_TTL_ENABLED))
62 if (flags & MXC_EHCI_INTERNAL_PHY)
63 v |= MX25_H1_USBTE_BIT;
65 if (flags & MXC_EHCI_IPPUE_DOWN)
66 v |= MX25_H1_IPPUE_DOWN_BIT;
68 if (flags & MXC_EHCI_IPPUE_UP)
69 v |= MX25_H1_IPPUE_UP_BIT;
76 writel(v, MX25_IO_ADDRESS(MX25_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));