soc/intel/alderlake: Add soc_get_xhci_usb_info() for elog support

Add MMIO offsets for USB2 and USB3 port status registers, for
both north (TCSS) and south (PCH) XHCI controllers; implement
soc_get_xhci_usb_info() to return the appropriate entries for
elog.

Change-Id: I5ceb73707a0af0542a07027fd5c873a9658b19d6
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47397
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Tim Wawrzynczak 2020-11-10 10:25:04 -07:00 committed by Patrick Georgi
parent aed1952f05
commit 291b58f06e
2 changed files with 45 additions and 0 deletions

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@ -45,6 +45,7 @@ ramstage-y += reset.c
ramstage-y += smmrelocate.c
ramstage-y += soundwire.c
ramstage-y += systemagent.c
ramstage-y += xhci.c
smm-y += gpio.c
smm-y += p2sb.c

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@ -0,0 +1,44 @@
/* 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 0x540
#define TCSS_XHCI_USB2_PORT_NUM 10
#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;
}