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

   1/*
   2 * (C) Copyright 2013
   3 * Sergey Kostanbaev < sergey.kostanbaev <at> fairwaves.ru >
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <config.h>
   9#include <common.h>
  10
  11#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
  12#include <asm/io.h>
  13#include <asm/arch/ep93xx.h>
  14
  15int usb_cpu_init(void)
  16{
  17        struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
  18        unsigned long pwr = readl(&syscon->pwrcnt);
  19        writel(pwr | SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt);
  20
  21        return 0;
  22}
  23
  24int usb_cpu_stop(void)
  25{
  26        struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE;
  27        unsigned long pwr = readl(&syscon->pwrcnt);
  28        writel(pwr &  ~SYSCON_PWRCNT_USH_EN, &syscon->pwrcnt);
  29
  30        return 0;
  31}
  32
  33int usb_cpu_init_fail(void)
  34{
  35        return usb_cpu_stop();
  36}
  37
  38#endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */
  39