1 files changed, 0 insertions, 238 deletions
diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c
deleted file mode 100644
index 5b3876f5312b..000000000000
--- a/drivers/pci/host/pci-versatile.c
+++ /dev/null
@@ -1,238 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright 2004 Koninklijke Philips Electronics NV
- *
- * Conversion to platform driver and DT:
- * Copyright 2014 Linaro Ltd.
- *
- * 14/04/2005 Initial version, [email protected]
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_pci.h>
-#include <linux/of_platform.h>
-#include <linux/pci.h>
-#include <linux/platform_device.h>
-
-static void __iomem *versatile_pci_base;
-static void __iomem *versatile_cfg_base[2];
-
-#define PCI_IMAP(m)		(versatile_pci_base + ((m) * 4))
-#define PCI_SMAP(m)		(versatile_pci_base + 0x14 + ((m) * 4))
-#define PCI_SELFID		(versatile_pci_base + 0xc)
-
-#define VP_PCI_DEVICE_ID		0x030010ee
-#define VP_PCI_CLASS_ID			0x0b400000
-
-static u32 pci_slot_ignore;
-
-static int __init versatile_pci_slot_ignore(char *str)
-{
-	int retval;
-	int slot;
-
-	while ((retval = get_option(&str, &slot))) {
-		if ((slot < 0) || (slot > 31))
-			pr_err("Illegal slot value: %d\n", slot);
-		else
-			pci_slot_ignore |= (1 << slot);
-	}
-	return 1;
-}
-__setup("pci_slot_ignore=", versatile_pci_slot_ignore);
-
-
-static void __iomem *versatile_map_bus(struct pci_bus *bus,
-				       unsigned int devfn, int offset)
-{
-	unsigned int busnr = bus->number;
-
-	if (pci_slot_ignore & (1 << PCI_SLOT(devfn)))
-		return NULL;
-
-	return versatile_cfg_base[1] + ((busnr << 16) | (devfn << 8) | offset);
-}
-
-static struct pci_ops pci_versatile_ops = {
-	.map_bus = versatile_map_bus,
-	.read	= pci_generic_config_read32,
-	.write	= pci_generic_config_write,
-};
-
-static int versatile_pci_parse_request_of_pci_ranges(struct device *dev,
-						     struct list_head *res)
-{
-	int err, mem = 1, res_valid = 0;
-	struct device_node *np = dev->of_node;
-	resource_size_t iobase;
-	struct resource_entry *win, *tmp;
-
-	err = of_pci_get_host_bridge_resources(np, 0, 0xff, res, &iobase);
-	if (err)
-		return err;
-
-	err = devm_request_pci_bus_resources(dev, res);
-	if (err)
-		goto out_release_res;
-
-	resource_list_for_each_entry_safe(win, tmp, res) {
-		struct resource *res = win->res;
-
-		switch (resource_type(res)) {
-		case IORESOURCE_IO:
-			err = pci_remap_iospace(res, iobase);
-			if (err) {
-				dev_warn(dev, "error %d: failed to map resource %pR\n",
-					 err, res);
-				resource_list_destroy_entry(win);
-			}
-			break;
-		case IORESOURCE_MEM:
-			res_valid |= !(res->flags & IORESOURCE_PREFETCH);
-
-			writel(res->start >> 28, PCI_IMAP(mem));
-			writel(PHYS_OFFSET >> 28, PCI_SMAP(mem));
-			mem++;
-
-			break;
-		}
-	}
-
-	if (res_valid)
-		return 0;
-
-	dev_err(dev, "non-prefetchable memory resource required\n");
-	err = -EINVAL;
-
-out_release_res:
-	pci_free_resource_list(res);
-	return err;
-}
-
-static int versatile_pci_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct resource *res;
-	int ret, i, myslot = -1;
-	u32 val;
-	void __iomem *local_pci_cfg_base;
-	struct pci_bus *bus, *child;
-	struct pci_host_bridge *bridge;
-	LIST_HEAD(pci_res);
-
-	bridge = devm_pci_alloc_host_bridge(dev, 0);
-	if (!bridge)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	versatile_pci_base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(versatile_pci_base))
-		return PTR_ERR(versatile_pci_base);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	versatile_cfg_base[0] = devm_ioremap_resource(dev, res);
-	if (IS_ERR(versatile_cfg_base[0]))
-		return PTR_ERR(versatile_cfg_base[0]);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	versatile_cfg_base[1] = devm_pci_remap_cfg_resource(dev, res);
-	if (IS_ERR(versatile_cfg_base[1]))
-		return PTR_ERR(versatile_cfg_base[1]);
-
-	ret = versatile_pci_parse_request_of_pci_ranges(dev, &pci_res);
-	if (ret)
-		return ret;
-
-	/*
-	 * We need to discover the PCI core first to configure itself
-	 * before the main PCI probing is performed
-	 */
-	for (i = 0; i < 32; i++) {
-		if ((readl(versatile_cfg_base[0] + (i << 11) + PCI_VENDOR_ID) == VP_PCI_DEVICE_ID) &&
-		    (readl(versatile_cfg_base[0] + (i << 11) + PCI_CLASS_REVISION) == VP_PCI_CLASS_ID)) {
-			myslot = i;
-			break;
-		}
-	}
-	if (myslot == -1) {
-		dev_err(dev, "Cannot find PCI core!\n");
-		return -EIO;
-	}
-	/*
-	 * Do not to map Versatile FPGA PCI device into memory space
-	 */
-	pci_slot_ignore |= (1 << myslot);
-
-	dev_info(dev, "PCI core found (slot %d)\n", myslot);
-
-	writel(myslot, PCI_SELFID);
-	local_pci_cfg_base = versatile_cfg_base[1] + (myslot << 11);
-
-	val = readl(local_pci_cfg_base + PCI_COMMAND);
-	val |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE;
-	writel(val, local_pci_cfg_base + PCI_COMMAND);
-
-	/*
-	 * Configure the PCI inbound memory windows to be 1:1 mapped to SDRAM
-	 */
-	writel(PHYS_OFFSET, local_pci_cfg_base + PCI_BASE_ADDRESS_0);
-	writel(PHYS_OFFSET, local_pci_cfg_base + PCI_BASE_ADDRESS_1);
-	writel(PHYS_OFFSET, local_pci_cfg_base + PCI_BASE_ADDRESS_2);
-
-	/*
-	 * For many years the kernel and QEMU were symbiotically buggy
-	 * in that they both assumed the same broken IRQ mapping.
-	 * QEMU therefore attempts to auto-detect old broken kernels
-	 * so that they still work on newer QEMU as they did on old
-	 * QEMU. Since we now use the correct (ie matching-hardware)
-	 * IRQ mapping we write a definitely different value to a
-	 * PCI_INTERRUPT_LINE register to tell QEMU that we expect
-	 * real hardware behaviour and it need not be backwards
-	 * compatible for us. This write is harmless on real hardware.
-	 */
-	writel(0, versatile_cfg_base[0] + PCI_INTERRUPT_LINE);
-
-	pci_add_flags(PCI_ENABLE_PROC_DOMAINS);
-	pci_add_flags(PCI_REASSIGN_ALL_BUS);
-
-	list_splice_init(&pci_res, &bridge->windows);
-	bridge->dev.parent = dev;
-	bridge->sysdata = NULL;
-	bridge->busnr = 0;
-	bridge->ops = &pci_versatile_ops;
-	bridge->map_irq = of_irq_parse_and_map_pci;
-	bridge->swizzle_irq = pci_common_swizzle;
-
-	ret = pci_scan_root_bus_bridge(bridge);
-	if (ret < 0)
-		return ret;
-
-	bus = bridge->bus;
-
-	pci_assign_unassigned_bus_resources(bus);
-	list_for_each_entry(child, &bus->children, node)
-		pcie_bus_configure_settings(child);
-	pci_bus_add_devices(bus);
-
-	return 0;
-}
-
-static const struct of_device_id versatile_pci_of_match[] = {
-	{ .compatible = "arm,versatile-pci", },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, versatile_pci_of_match);
-
-static struct platform_driver versatile_pci_driver = {
-	.driver = {
-		.name = "versatile-pci",
-		.of_match_table = versatile_pci_of_match,
-		.suppress_bind_attrs = true,
-	},
-	.probe = versatile_pci_probe,
-};
-module_platform_driver(versatile_pci_driver);
-
-MODULE_DESCRIPTION("Versatile PCI driver");
-MODULE_LICENSE("GPL v2");