coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
xhci.c
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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <device/pci_type.h>
4 #include <intelblocks/xhci.h>
5 #include <soc/pci_devs.h>
6 
7 #define PCH_XHCI_USB2_PORT_STATUS_REG 0x480
8 #define PCH_XHCI_USB3_PORT_STATUS_REG 0x520
9 #define PCH_XHCI_USB2_PORT_NUM 10
10 #define PCH_XHCI_USB3_PORT_NUM 4
11 
12 #define TCSS_XHCI_USB2_PORT_STATUS_REG 0x480
13 #define TCSS_XHCI_USB3_PORT_STATUS_REG 0x490
14 #define TCSS_XHCI_USB2_PORT_NUM 1
15 #define TCSS_XHCI_USB3_PORT_NUM 4
16 
17 static const struct xhci_usb_info pch_usb_info = {
19  .num_usb2_ports = PCH_XHCI_USB2_PORT_NUM,
20  .usb3_port_status_reg = PCH_XHCI_USB3_PORT_STATUS_REG,
21  .num_usb3_ports = PCH_XHCI_USB3_PORT_NUM,
22 };
23 
24 static const struct xhci_usb_info tcss_usb_info = {
26  .num_usb2_ports = TCSS_XHCI_USB2_PORT_NUM,
27  .usb3_port_status_reg = TCSS_XHCI_USB3_PORT_STATUS_REG,
28  .num_usb3_ports = TCSS_XHCI_USB3_PORT_NUM,
29 };
30 
32 {
33  if (xhci_dev == PCH_DEVFN_XHCI)
34  return &pch_usb_info;
35  else if (xhci_dev == SA_DEVFN_TCSS_XHCI)
36  return &tcss_usb_info;
37 
38  return NULL;
39 }
u32 pci_devfn_t
Definition: pci_type.h:8
#define SA_DEVFN_TCSS_XHCI
Definition: pci_devs.h:70
#define PCH_DEVFN_XHCI
Definition: pci_devs.h:124
const struct xhci_usb_info * soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
Definition: xhci.c:36
#define TCSS_XHCI_USB3_PORT_STATUS_REG
Definition: xhci.c:13
#define TCSS_XHCI_USB2_PORT_STATUS_REG
Definition: xhci.c:12
static const struct xhci_usb_info pch_usb_info
Definition: xhci.c:17
#define PCH_XHCI_USB2_PORT_NUM
Definition: xhci.c:9
#define PCH_XHCI_USB3_PORT_NUM
Definition: xhci.c:10
static const struct xhci_usb_info tcss_usb_info
Definition: xhci.c:24
#define TCSS_XHCI_USB3_PORT_NUM
Definition: xhci.c:15
#define TCSS_XHCI_USB2_PORT_NUM
Definition: xhci.c:14
#define PCH_XHCI_USB2_PORT_STATUS_REG
Definition: xhci.c:7
#define PCH_XHCI_USB3_PORT_STATUS_REG
Definition: xhci.c:8
#define NULL
Definition: stddef.h:19
uint32_t usb2_port_status_reg
Definition: xhci.h:18