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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0
Simon Glass316328f2015-01-27 22:13:31 -07002/*
3 * Copyright (c) 2015, Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
5 * All rights reserved.
Simon Glass316328f2015-01-27 22:13:31 -07006 */
7
8#include <common.h>
Stefan Roese555a3472016-07-18 12:51:39 +02009#include <dm.h>
Simon Glass316328f2015-01-27 22:13:31 -070010#include <pci.h>
11#include <usb.h>
Simon Glass316328f2015-01-27 22:13:31 -070012#include "xhci.h"
13
Stefan Roese555a3472016-07-18 12:51:39 +020014static void xhci_pci_init(struct udevice *dev, struct xhci_hccr **ret_hccr,
15 struct xhci_hcor **ret_hcor)
16{
17 struct xhci_hccr *hccr;
18 struct xhci_hcor *hcor;
19 u32 cmd;
20
21 hccr = (struct xhci_hccr *)dm_pci_map_bar(dev,
22 PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
23 hcor = (struct xhci_hcor *)((uintptr_t) hccr +
24 HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
25
Bin Meng9fddf6c2018-06-03 19:04:14 -070026 debug("XHCI-PCI init hccr %p and hcor %p hc_length %d\n",
27 hccr, hcor, (u32)HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
Stefan Roese555a3472016-07-18 12:51:39 +020028
29 *ret_hccr = hccr;
30 *ret_hcor = hcor;
31
32 /* enable busmaster */
33 dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
34 cmd |= PCI_COMMAND_MASTER;
35 dm_pci_write_config32(dev, PCI_COMMAND, cmd);
36}
37
38static int xhci_pci_probe(struct udevice *dev)
39{
40 struct xhci_hccr *hccr;
41 struct xhci_hcor *hcor;
42
43 xhci_pci_init(dev, &hccr, &hcor);
44
45 return xhci_register(dev, hccr, hcor);
46}
47
Stefan Roese555a3472016-07-18 12:51:39 +020048static const struct udevice_id xhci_pci_ids[] = {
49 { .compatible = "xhci-pci" },
50 { }
51};
52
53U_BOOT_DRIVER(xhci_pci) = {
54 .name = "xhci_pci",
55 .id = UCLASS_USB,
56 .probe = xhci_pci_probe,
Bin Meng5e941942017-07-19 21:51:08 +080057 .remove = xhci_deregister,
Stefan Roese555a3472016-07-18 12:51:39 +020058 .of_match = xhci_pci_ids,
59 .ops = &xhci_usb_ops,
60 .platdata_auto_alloc_size = sizeof(struct usb_platdata),
Bin Meng5e941942017-07-19 21:51:08 +080061 .priv_auto_alloc_size = sizeof(struct xhci_ctrl),
Stefan Roese555a3472016-07-18 12:51:39 +020062 .flags = DM_FLAG_ALLOC_PRIV_DMA,
63};
64
65static struct pci_device_id xhci_pci_supported[] = {
66 { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0) },
67 {},
68};
69
70U_BOOT_PCI_DEVICE(xhci_pci, xhci_pci_supported);