forked from Minki/linux
35832e26f9
Patch to add core platform support for the PMC-Sierra MSP71xx devices. Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/*
|
|
* 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);
|