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/*
* Copyright (c) 2015, Google, Inc
* Written by Simon Glass <sjg@chromium.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <errno.h>
#include <pci.h>
#include <usb.h>
#include "xhci.h"
/*
* Create the appropriate control structures to manage a new XHCI host
* controller.
*/
int xhci_hcd_init(int index, struct xhci_hccr **ret_hccr,
struct xhci_hcor **ret_hcor)
{
struct xhci_hccr *hccr;
struct xhci_hcor *hcor;
pci_dev_t pdev;
uint32_t cmd;
int len;
pdev = pci_find_class(PCI_CLASS_SERIAL_USB_XHCI, index);
if (pdev < 0) {
printf("XHCI host controller not found\n");
return -1;
}
hccr = (struct xhci_hccr *)pci_map_bar(pdev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
len = HC_LENGTH(xhci_readl(&hccr->cr_capbase));
hcor = (struct xhci_hcor *)((uint32_t)hccr + len);
debug("XHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
(uint32_t)hccr, (uint32_t)hcor, len);
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
pci_write_config_dword(pdev, PCI_COMMAND, cmd);
return 0;
}
/*
* Destroy the appropriate control structures corresponding * to the XHCI host
* controller
*/
void xhci_hcd_stop(int index)
{
}
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