cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dev-usb-usbd.c (1881B)

      1/*
      2 * This file is subject to the terms and conditions of the GNU General Public
      3 * License.  See the file "COPYING" in the main directory of this archive
      4 * for more details.
      5 *
      6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
      7 * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com>
      8 * Copyright (C) 2012 Broadcom Corporation
      9 */
     10
     11#include <linux/init.h>
     12#include <linux/kernel.h>
     13#include <linux/platform_device.h>
     14#include <linux/dma-mapping.h>
     15#include <bcm63xx_cpu.h>
     16#include <bcm63xx_dev_usb_usbd.h>
     17
     18#define NUM_MMIO		2
     19#define NUM_IRQ			7
     20
     21static struct resource usbd_resources[NUM_MMIO + NUM_IRQ];
     22
     23static u64 usbd_dmamask = DMA_BIT_MASK(32);
     24
     25static struct platform_device bcm63xx_usbd_device = {
     26	.name		= "bcm63xx_udc",
     27	.id		= -1,
     28	.num_resources	= ARRAY_SIZE(usbd_resources),
     29	.resource	= usbd_resources,
     30	.dev		= {
     31		.dma_mask		= &usbd_dmamask,
     32		.coherent_dma_mask	= DMA_BIT_MASK(32),
     33	},
     34};
     35
     36int __init bcm63xx_usbd_register(const struct bcm63xx_usbd_platform_data *pd)
     37{
     38	const int irq_list[NUM_IRQ] = { IRQ_USBD,
     39		IRQ_USBD_RXDMA0, IRQ_USBD_TXDMA0,
     40		IRQ_USBD_RXDMA1, IRQ_USBD_TXDMA1,
     41		IRQ_USBD_RXDMA2, IRQ_USBD_TXDMA2 };
     42	int i;
     43
     44	if (!BCMCPU_IS_6328() && !BCMCPU_IS_6368())
     45		return 0;
     46
     47	usbd_resources[0].start = bcm63xx_regset_address(RSET_USBD);
     48	usbd_resources[0].end = usbd_resources[0].start + RSET_USBD_SIZE - 1;
     49	usbd_resources[0].flags = IORESOURCE_MEM;
     50
     51	usbd_resources[1].start = bcm63xx_regset_address(RSET_USBDMA);
     52	usbd_resources[1].end = usbd_resources[1].start + RSET_USBDMA_SIZE - 1;
     53	usbd_resources[1].flags = IORESOURCE_MEM;
     54
     55	for (i = 0; i < NUM_IRQ; i++) {
     56		struct resource *r = &usbd_resources[NUM_MMIO + i];
     57
     58		r->start = r->end = bcm63xx_get_irq_number(irq_list[i]);
     59		r->flags = IORESOURCE_IRQ;
     60	}
     61
     62	platform_device_add_data(&bcm63xx_usbd_device, pd, sizeof(*pd));
     63
     64	return platform_device_register(&bcm63xx_usbd_device);
     65}