drivers/usb/host/ehci-armada100.c

   1 /*
   2  * (C) Copyright 2012
   3  * eInfochips Ltd. <www.einfochips.com>
   4  * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
   5  *
   6  * This driver is based on Kirkwood echi driver
   7  * (C) Copyright 2009
   8  * Marvell Semiconductor <www.marvell.com>
   9  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  10  *
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 #include <common.h>
  15 #include <asm/io.h>
  16 #include <usb.h>
  17 #include "ehci.h"
  18 #include <asm/arch/cpu.h>
  19 #include <asm/arch/armada100.h>
  20 #include <asm/arch/utmi-armada100.h>
  21
  22 /*
  23  * EHCI host controller init
  24  */
  25 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
  26 {
  27         if (utmi_init() < 0)
  28                 return -1;
  29
  30         *hccr = (struct ehci_hccr *)(ARMD1_USB_HOST_BASE + 0x100);
  31         *hcor = (struct ehci_hcor *)((uint32_t) *hccr
  32                         + HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
  33
  34         debug("armada100-ehci: init hccr %x and hcor %x hc_length %d\n",
  35                 (uint32_t)*hccr, (uint32_t)*hcor,
  36                 (uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
  37
  38         return 0;
  39 }
  40
  41 /*
  42  * EHCI host controller stop
  43  */
  44 int ehci_hcd_stop(int index)
  45 {
  46         return 0;
  47 }