LXR uboot/arch/powerpc/cpu/ppc4xx/usb.c

   1/*
   2 * (C) Copyright 2007
   3 * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de>
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25
  26#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
  27
  28#ifdef CONFIG_4xx_DCACHE
  29#include <asm/mmu.h>
  30DECLARE_GLOBAL_DATA_PTR;
  31#endif
  32
  33#include "usbdev.h"
  34
  35int usb_cpu_init(void)
  36{
  37#ifdef CONFIG_4xx_DCACHE
  38        /* disable cache */
  39        change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, TLB_WORD2_I_ENABLE);
  40#endif
  41
  42#if defined(CONFIG_440EP) || defined(CONFIG_440EPX)
  43        usb_dev_init();
  44#endif
  45        return 0;
  46}
  47
  48int usb_cpu_stop(void)
  49{
  50#ifdef CONFIG_4xx_DCACHE
  51        /* enable cache */
  52        change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0);
  53#endif
  54        return 0;
  55}
  56
  57int usb_cpu_init_fail(void)
  58{
  59#ifdef CONFIG_4xx_DCACHE
  60        /* enable cache */
  61        change_tlb(gd->bd->bi_memstart, gd->bd->bi_memsize, 0);
  62#endif
  63        return 0;
  64}
  65
  66#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */
  67