mips/bcm63xx/dev-usb-usbd.c

0001 /*
0002  * This file is subject to the terms and conditions of the GNU General Public
0003  * License.  See the file "COPYING" in the main directory of this archive
0004  * for more details.
0005  *
0006  * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
0007  * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com>
0008  * Copyright (C) 2012 Broadcom Corporation
0009  */
0010
0011 #include <linux/init.h>
0012 #include <linux/kernel.h>
0013 #include <linux/platform_device.h>
0014 #include <linux/dma-mapping.h>
0015 #include <bcm63xx_cpu.h>
0016 #include <bcm63xx_dev_usb_usbd.h>
0017
0018 #define NUM_MMIO        2
0019 #define NUM_IRQ         7
0020
0021 static struct resource usbd_resources[NUM_MMIO + NUM_IRQ];
0022
0023 static u64 usbd_dmamask = DMA_BIT_MASK(32);
0024
0025 static struct platform_device bcm63xx_usbd_device = {
0026     .name       = "bcm63xx_udc",
0027     .id     = -1,
0028     .num_resources  = ARRAY_SIZE(usbd_resources),
0029     .resource   = usbd_resources,
0030     .dev        = {
0031         .dma_mask       = &usbd_dmamask,
0032         .coherent_dma_mask  = DMA_BIT_MASK(32),
0033     },
0034 };
0035
0036 int __init bcm63xx_usbd_register(const struct bcm63xx_usbd_platform_data *pd)
0037 {
0038     const int irq_list[NUM_IRQ] = { IRQ_USBD,
0039         IRQ_USBD_RXDMA0, IRQ_USBD_TXDMA0,
0040         IRQ_USBD_RXDMA1, IRQ_USBD_TXDMA1,
0041         IRQ_USBD_RXDMA2, IRQ_USBD_TXDMA2 };
0042     int i;
0043
0044     if (!BCMCPU_IS_6328() && !BCMCPU_IS_6368())
0045         return 0;
0046
0047     usbd_resources[0].start = bcm63xx_regset_address(RSET_USBD);
0048     usbd_resources[0].end = usbd_resources[0].start + RSET_USBD_SIZE - 1;
0049     usbd_resources[0].flags = IORESOURCE_MEM;
0050
0051     usbd_resources[1].start = bcm63xx_regset_address(RSET_USBDMA);
0052     usbd_resources[1].end = usbd_resources[1].start + RSET_USBDMA_SIZE - 1;
0053     usbd_resources[1].flags = IORESOURCE_MEM;
0054
0055     for (i = 0; i < NUM_IRQ; i++) {
0056         struct resource *r = &usbd_resources[NUM_MMIO + i];
0057
0058         r->start = r->end = bcm63xx_get_irq_number(irq_list[i]);
0059         r->flags = IORESOURCE_IRQ;
0060     }
0061
0062     platform_device_add_data(&bcm63xx_usbd_device, pd, sizeof(*pd));
0063
0064     return platform_device_register(&bcm63xx_usbd_device);
0065 }