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
  15 int 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
  24 int 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
  33 int 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) */