From 35832e26f95ba14a6b6f0519441c5cb64cca6bf9 Mon Sep 17 00:00:00 2001 From: Marc St-Jean Date: Thu, 14 Jun 2007 15:54:47 -0600 Subject: [MIPS] PMC MSP71xx core platform Patch to add core platform support for the PMC-Sierra MSP71xx devices. Signed-off-by: Marc St-Jean Signed-off-by: Ralf Baechle --- arch/mips/pmc-sierra/msp71xx/msp_usb.c | 150 +++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 arch/mips/pmc-sierra/msp71xx/msp_usb.c (limited to 'arch/mips/pmc-sierra/msp71xx/msp_usb.c') 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 +#include +#include +#include + +#include + +#include +#include +#include + +#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 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); -- cgit v1.2.3-59-g8ed1b