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linux-next/arch/arm/mach-imx/ehci-imx31.c
Shawn Guo 641dfe8b73 ARM: imx: move EHCI platform defines out of platform_data header
The platform_data header usb-ehci-mxc.h has a lot of stuff used by only
IMX platform code.  They shouldn't be really in this header but a IMX
platform local header.  Create ehci.h and move these stuff into it.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:10:04 +08:00

84 lines
2.3 KiB
C

/*
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
* Copyright (C) 2010 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/platform_data/usb-ehci-mxc.h>
#include "ehci.h"
#include "hardware.h"
#define USBCTRL_OTGBASE_OFFSET 0x600
#define MX31_OTG_SIC_SHIFT 29
#define MX31_OTG_SIC_MASK (0x3 << MX31_OTG_SIC_SHIFT)
#define MX31_OTG_PM_BIT (1 << 24)
#define MX31_H2_SIC_SHIFT 21
#define MX31_H2_SIC_MASK (0x3 << MX31_H2_SIC_SHIFT)
#define MX31_H2_PM_BIT (1 << 16)
#define MX31_H2_DT_BIT (1 << 5)
#define MX31_H1_SIC_SHIFT 13
#define MX31_H1_SIC_MASK (0x3 << MX31_H1_SIC_SHIFT)
#define MX31_H1_PM_BIT (1 << 8)
#define MX31_H1_DT_BIT (1 << 4)
int mx31_initialize_usb_hw(int port, unsigned int flags)
{
unsigned int v;
v = readl(MX31_IO_ADDRESS(MX31_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
switch (port) {
case 0: /* OTG port */
v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX31_OTG_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX31_OTG_PM_BIT;
break;
case 1: /* H1 port */
v &= ~(MX31_H1_SIC_MASK | MX31_H1_PM_BIT | MX31_H1_DT_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX31_H1_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX31_H1_PM_BIT;
if (!(flags & MXC_EHCI_TTL_ENABLED))
v |= MX31_H1_DT_BIT;
break;
case 2: /* H2 port */
v &= ~(MX31_H2_SIC_MASK | MX31_H2_PM_BIT | MX31_H2_DT_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX31_H2_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX31_H2_PM_BIT;
if (!(flags & MXC_EHCI_TTL_ENABLED))
v |= MX31_H2_DT_BIT;
break;
default:
return -EINVAL;
}
writel(v, MX31_IO_ADDRESS(MX31_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
return 0;
}