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/*
* The setup file for USB related hardware on PMC-Sierra MSP processors.
*
* Copyright 2006-2007 PMC-Sierra, 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <asm/mipsregs.h>
#include <msp_regs.h>
#include <msp_int.h>
#include <msp_prom.h>
#if defined(CONFIG_USB_EHCI_HCD)
static struct resource msp_usbhost_resources [] = {
[0] = {
.start = MSP_USB_BASE_START,
.end = MSP_USB_BASE_END,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = MSP_INT_USB,
.end = MSP_INT_USB,
.flags = IORESOURCE_IRQ,
},
};
static u64 msp_usbhost_dma_mask = DMA_32BIT_MASK;
static struct platform_device msp_usbhost_device = {
.name = "pmcmsp-ehci",
.id = 0,
.dev = {
.dma_mask = &msp_usbhost_dma_mask,
.coherent_dma_mask = DMA_32BIT_MASK,
},
.num_resources = ARRAY_SIZE(msp_usbhost_resources),
.resource = msp_usbhost_resources,
};
#endif /* CONFIG_USB_EHCI_HCD */
#if defined(CONFIG_USB_GADGET)
static struct resource msp_usbdev_resources [] = {
[0] = {
.start = MSP_USB_BASE,
.end = MSP_USB_BASE_END,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = MSP_INT_USB,
.end = MSP_INT_USB,
.flags = IORESOURCE_IRQ,
},
};
static u64 msp_usbdev_dma_mask = DMA_32BIT_MASK;
static struct platform_device msp_usbdev_device = {
.name = "msp71xx_udc",
.id = 0,
.dev = {
.dma_mask = &msp_usbdev_dma_mask,
.coherent_dma_mask = DMA_32BIT_MASK,
},
.num_resources = ARRAY_SIZE(msp_usbdev_resources),
.resource = msp_usbdev_resources,
};
#endif /* CONFIG_USB_GADGET */
#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
static struct platform_device *msp_devs[1];
#endif
static int __init msp_usb_setup(void)
{
#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_GADGET)
char *strp;
char envstr[32];
unsigned int val = 0;
int result = 0;
/*
* construct environment name usbmode
* set usbmode <host/device> as pmon environment var
*/
snprintf((char *)&envstr[0], sizeof(envstr), "usbmode");
#if defined(CONFIG_USB_EHCI_HCD)
/* default to host mode */
val = 1;
#endif
/* get environment string */
strp = prom_getenv((char *)&envstr[0]);
if (strp) {
if (!strcmp(strp, "device"))
val = 0;
}
if (val) {
#if defined(CONFIG_USB_EHCI_HCD)
/* get host mode device */
msp_devs[0] = &msp_usbhost_device;
ppfinit("platform add USB HOST done %s.\n",
msp_devs[0]->name);
result = platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs));
#endif /* CONFIG_USB_EHCI_HCD */
}
#if defined(CONFIG_USB_GADGET)
else {
/* get device mode structure */
msp_devs[0] = &msp_usbdev_device;
ppfinit("platform add USB DEVICE done %s.\n",
msp_devs[0]->name);
result = platform_add_devices(msp_devs, ARRAY_SIZE(msp_devs));
}
#endif /* CONFIG_USB_GADGET */
#endif /* CONFIG_USB_EHCI_HCD || CONFIG_USB_GADGET */
return result;
}
subsys_initcall(msp_usb_setup);
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