LXR uboot/drivers/usb/host/ohci-ep93xx.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2013
   4 * Sergey Kostanbaev < sergey.kostanbaev <at> fairwaves.ru >
   5 */
   6
   7#include <config.h>
   8#include <common.h>
   9
  10#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
  11#include <asm/io.h>
  12#include <asm/arch/ep93xx.h>
  13
  14int usb_cpu_init(void)
  15{
  16        struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
  17        unsigned long pwr = readl(&syscon->pwrcnt);
  18        writel(pwr | SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt);
  19
  20        return 0;
  21}
  22
  23int usb_cpu_stop(void)
  24{
  25        struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
  26        unsigned long pwr = readl(&syscon->pwrcnt);
  27        writel(pwr &  ~SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt);
  28
  29        return 0;
  30}
  31
  32int usb_cpu_init_fail(void)
  33{
  34        return usb_cpu_stop();
  35}
  36
  37#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */
  38