Tim Wawrzynczak has uploaded this change for review.

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soc/intel/common: Add PCI driver for USB4 ports

In order to enable SSDT generation for Intel USB4 ports, a minimal PCI
driver is required.

Change-Id: Ib9da051307b883eb99e500114378c9fd842ffc92
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
---
A src/soc/intel/common/block/usb4/Kconfig
A src/soc/intel/common/block/usb4/Makefile.inc
A src/soc/intel/common/block/usb4/usb4.c
3 files changed, 32 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/41/46141/1

diff --git a/src/soc/intel/common/block/usb4/Kconfig b/src/soc/intel/common/block/usb4/Kconfig
new file mode 100644
index 0000000..f68c5a7
--- /dev/null
+++ b/src/soc/intel/common/block/usb4/Kconfig
@@ -0,0 +1,6 @@
+config SOC_INTEL_COMMON_BLOCK_USB4
+	bool
+	default n
+	help
+	  Minimal PCI Driver for enabling SSDT generation for Intel
+	  Thunderbolt/USB4 ports.
diff --git a/src/soc/intel/common/block/usb4/Makefile.inc b/src/soc/intel/common/block/usb4/Makefile.inc
new file mode 100644
index 0000000..7dad4ba
--- /dev/null
+++ b/src/soc/intel/common/block/usb4/Makefile.inc
@@ -0,0 +1 @@
+ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_USB4) += usb4.c
diff --git a/src/soc/intel/common/block/usb4/usb4.c b/src/soc/intel/common/block/usb4/usb4.c
new file mode 100644
index 0000000..3fc1159
--- /dev/null
+++ b/src/soc/intel/common/block/usb4/usb4.c
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+static const unsigned short pci_device_ids[] = {
+	PCI_DEVICE_ID_INTEL_TGL_TBT_DMA0,
+	PCI_DEVICE_ID_INTEL_TGL_TBT_DMA1,
+	0
+};
+
+static struct device_operations usb4_dev_ops = {
+	.read_resources			= pci_dev_read_resources,
+	.set_resources			= pci_dev_set_resources,
+	.enable_resources		= pci_dev_enable_resources,
+	.scan_bus			= scan_generic_bus,
+	.ops_pci			= &pci_dev_ops_pci,
+};
+
+static const struct pci_driver usb4_driver __pci_driver = {
+	.ops				= &usb4_dev_ops,
+	.vendor				= PCI_VENDOR_ID_INTEL,
+	.devices			= pci_device_ids,
+};

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