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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/mips/bcm63xx/dev-usb-usbd.c
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/*

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 * This file is subject to the terms and conditions of the GNU General Public

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 * License.  See the file "COPYING" in the main directory of this archive

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 * for more details.

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 *

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 * Copyright (C) 2008 Maxime Bizon <[email protected]>

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 * Copyright (C) 2012 Kevin Cernekee <[email protected]>

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 * Copyright (C) 2012 Broadcom Corporation

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 */

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#include <linux/init.h>

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#include <linux/kernel.h>

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#include <linux/platform_device.h>

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#include <linux/dma-mapping.h>

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#include <bcm63xx_cpu.h>

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#include <bcm63xx_dev_usb_usbd.h>

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#define NUM_MMIO		2

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#define NUM_IRQ			7

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static struct resource usbd_resources[NUM_MMIO + NUM_IRQ];

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static u64 usbd_dmamask = DMA_BIT_MASK(32);

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static struct platform_device bcm63xx_usbd_device = {

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	.name		= "bcm63xx_udc",

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	.id		= -1,

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	.num_resources	= ARRAY_SIZE(usbd_resources),

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	.resource	= usbd_resources,

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	.dev		= {

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		.dma_mask		= &usbd_dmamask,

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		.coherent_dma_mask	= DMA_BIT_MASK(32),

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	},

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};

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int __init bcm63xx_usbd_register(const struct bcm63xx_usbd_platform_data *pd)

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{

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	const int irq_list[NUM_IRQ] = { IRQ_USBD,

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		IRQ_USBD_RXDMA0, IRQ_USBD_TXDMA0,

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		IRQ_USBD_RXDMA1, IRQ_USBD_TXDMA1,

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		IRQ_USBD_RXDMA2, IRQ_USBD_TXDMA2 };

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	int i;

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	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6368())

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		return 0;

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	usbd_resources[0].start = bcm63xx_regset_address(RSET_USBD);

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	usbd_resources[0].end = usbd_resources[0].start + RSET_USBD_SIZE - 1;

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	usbd_resources[0].flags = IORESOURCE_MEM;

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	usbd_resources[1].start = bcm63xx_regset_address(RSET_USBDMA);

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	usbd_resources[1].end = usbd_resources[1].start + RSET_USBDMA_SIZE - 1;

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	usbd_resources[1].flags = IORESOURCE_MEM;

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	for (i = 0; i < NUM_IRQ; i++) {

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		struct resource *r = &usbd_resources[NUM_MMIO + i];

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		r->start = r->end = bcm63xx_get_irq_number(irq_list[i]);

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		r->flags = IORESOURCE_IRQ;

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	}

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	platform_device_add_data(&bcm63xx_usbd_device, pd, sizeof(*pd));

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	return platform_device_register(&bcm63xx_usbd_device);

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}

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