1 files changed, 150 insertions, 0 deletions

diff --git a/arch/mips/pmc-sierra/msp71xx/msp_usb.c b/arch/mips/pmc-sierra/msp71xx/msp_usb.c
new file mode 100644
index 000000000000..21f9c70b6923
--- /dev/null
+++ b/arch/mips/pmc-sierra/msp71xx/msp_usb.c
@@ -0,0 +1,150 @@
+/*
+ * 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);