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Diffstat (limited to 'arch/mips/pmc-sierra/msp71xx/msp_usb.c')
-rw-r--r--arch/mips/pmc-sierra/msp71xx/msp_usb.c150
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);