Remove thunderbolt driver

Change-Id: I2cfda79ab838e76170219e9081daf8218b4c09fc

src/drivers/thunderbolt/Kconfig

@@ -1,4 +0,0 @@
-config DRIVERS_THUNDERBOLT
-	bool
-	help
-	  Thunderbolt support

src/drivers/thunderbolt/Makefile.inc

@@ -1 +0,0 @@
-ramstage-$(CONFIG_DRIVERS_THUNDERBOLT) += thunderbolt.c

src/drivers/thunderbolt/thunderbolt.c

@@ -1,110 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2019 System76.
- * Copyright (C) 2017-2018 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <console/console.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pciexp.h>
-#include <device/pci_def.h>
-#include <device/pci_ids.h>
-#include <device/pci_ops.h>
-
-static void slot_dev_read_resources(struct device *dev)
-{
-	struct resource *resource;
-
-	// Add 256 MiB of memory space
-	resource = new_resource(dev, 0x10);
-	resource->size = 1 << 28;
-	resource->align = 22;
-	resource->gran = 22;
-	resource->limit = 0xffffffff;
-	resource->flags |= IORESOURCE_MEM;
-
-	// Add 256 MiB of prefetchable memory space
-	resource = new_resource(dev, 0x14);
-	resource->size = 1 << 28;
-	resource->align = 22;
-	resource->gran = 22;
-	resource->limit = 0xffffffff;
-	resource->flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH;
-
-	// Add 8 KiB of I/O space
-	resource = new_resource(dev, 0x18);
-	resource->size = 1 << 13;
-	resource->align = 12;
-	resource->gran = 12;
-	resource->limit = 0xffff;
-	resource->flags |= IORESOURCE_IO;
-}
-
-static struct device_operations slot_dev_ops = {
-	.read_resources   = slot_dev_read_resources,
-};
-
-static bool tbt_is_hotplug_bridge(struct device *dev) {
-	return PCI_SLOT(dev->path.pci.devfn) == 1;
-}
-
-static void tbt_pciexp_scan_bridge(struct device *dev) {
-	printk(BIOS_DEBUG, "%s: %s: scan bridge\n", __func__, dev_path(dev));
-
-	bool is_hotplug = tbt_is_hotplug_bridge(dev);
-	if (is_hotplug) {
-		/* Add hotplug buses, must happen before bus scan */
-		printk(BIOS_DEBUG, "%s: %s: add hotplug buses\n", __func__, dev_path(dev));
-		dev->hotplug_buses = 32;
-	}
-
-	/* Normal PCIe Scan */
-	pciexp_scan_bridge(dev);
-
-	if (is_hotplug) {
-		/* Add dummy slot to preserve resources, must happen after bus scan */
-		printk(BIOS_DEBUG, "%s: %s: add dummy device\n", __func__, dev_path(dev));
-		struct device *slot;
-		struct device_path slot_path = { .type = DEVICE_PATH_NONE };
-		slot = alloc_dev(dev->link_list, &slot_path);
-		slot->ops = &slot_dev_ops;
-	}
-}
-
-static struct pci_operations pcie_ops = {
-	.set_subsystem = pci_dev_set_subsystem,
-};
-
-static struct device_operations device_ops = {
-	.read_resources   = pci_bus_read_resources,
-	.set_resources    = pci_dev_set_resources,
-	.enable_resources = pci_bus_enable_resources,
-	.init             = 0,
-	.scan_bus         = tbt_pciexp_scan_bridge,
-	.enable           = 0,
-	.reset_bus        = pci_bus_reset,
-	.ops_pci          = &pcie_ops,
-};
-
-static const unsigned short pcie_device_ids[] = {
-	// JHL7540 Thunderbolt 3 Bridge
-	0x15e7,
-	0
-};
-
-static const struct pci_driver tbt_pcie __pci_driver = {
-	.ops	 = &device_ops,
-	.vendor	 = PCI_VENDOR_ID_INTEL,
-	.devices = pcie_device_ids,
-};

src/mainboard/system76/cml-u/Kconfig

@@ -4,7 +4,6 @@ config BOARD_SPECIFIC_OPTIONS
 	def_bool y
 	select ADD_FSP_BINARIES
 	select BOARD_ROMSIZE_KB_16384
-	select DRIVERS_THUNDERBOLT
 	select EC_ACPI
 	select EXCLUDE_EMMC_INTERFACE
 	select HAVE_ACPI_RESUME