drivers/usb/host/ehci-ppc4xx.c

   1 /*
   2  * (C) Copyright 2010, Chris Zhang <chris@seamicro.com>
   3  *
   4  * Author: Chris Zhang <chris@seamicro.com>
   5  * This code is based on ehci freescale driver
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9 #include <common.h>
  10 #include <usb.h>
  11
  12 #include "ehci.h"
  13
  14 /*
  15  * Create the appropriate control structures to manage
  16  * a new EHCI host controller.
  17  */
  18 int ehci_hcd_init(int index, enum usb_init_type init,
  19                 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
  20 {
  21         *hccr = (struct ehci_hccr *)(CONFIG_SYS_PPC4XX_USB_ADDR);
  22         *hcor = (struct ehci_hcor *)((uint32_t) *hccr +
  23                 HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
  24         return 0;
  25 }
  26
  27 /*
  28  * Destroy the appropriate control structures corresponding
  29  * the the EHCI host controller.
  30  */
  31 int ehci_hcd_stop(int index)
  32 {
  33         return 0;
  34 }