xhci.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/pci_type.h>
#include <intelblocks/xhci.h>
#include <soc/pci_devs.h>
 
/*
 * Information obtained from Intel doc# 630094, ADL-P PCH EDS Vol. 2,
 * as well as doc# 626817, ADL-P PCH EDS Vol. 1
 */
 
#define PCH_XHCI_USB2_PORT_STATUS_REG   0x480
#define PCH_XHCI_USB3_PORT_STATUS_REG   0x540
#define PCH_XHCI_USB2_PORT_NUM          10
#define PCH_XHCI_USB3_PORT_NUM          4
 
#define TCSS_XHCI_USB2_PORT_STATUS_REG  0x480
#define TCSS_XHCI_USB3_PORT_STATUS_REG  0x490
#define TCSS_XHCI_USB2_PORT_NUM         0
#define TCSS_XHCI_USB3_PORT_NUM         4
 
static const struct xhci_usb_info usb_info = {
        .usb2_port_status_reg = PCH_XHCI_USB2_PORT_STATUS_REG,
        .num_usb2_ports = PCH_XHCI_USB2_PORT_NUM,
        .usb3_port_status_reg = PCH_XHCI_USB3_PORT_STATUS_REG,
        .num_usb3_ports = PCH_XHCI_USB3_PORT_NUM,
};
 
static const struct xhci_usb_info tcss_usb_info = {
        .usb2_port_status_reg = TCSS_XHCI_USB2_PORT_STATUS_REG,
        .num_usb2_ports = TCSS_XHCI_USB2_PORT_NUM,
        .usb3_port_status_reg = TCSS_XHCI_USB3_PORT_STATUS_REG,
        .num_usb3_ports = TCSS_XHCI_USB3_PORT_NUM,
};
 
const struct xhci_usb_info *soc_get_xhci_usb_info(pci_devfn_t xhci_dev)
{
        if (xhci_dev == PCH_DEVFN_XHCI)
                return &usb_info;
        else if (xhci_dev == SA_DEVFN_TCSS_XHCI)
                return &tcss_usb_info;
 
        return NULL;
}