1 // SPDX-License-Identifier: GPL-2.0
15 #include <linux/pci.h>
18 #include "../pci.h"
51 	unsigned int busnr = bus->number;  in versatile_map_bus()
81 		struct resource *res = win->res;  in versatile_pci_parse_request_of_pci_ranges()
93 			res_valid |= !(res->flags & IORESOURCE_PREFETCH);  in versatile_pci_parse_request_of_pci_ranges()
95 			writel(res->start >> 28, PCI_IMAP(mem));  in versatile_pci_parse_request_of_pci_ranges()
106 	dev_err(dev, "non-prefetchable memory resource required\n");  in versatile_pci_parse_request_of_pci_ranges()
107 	err = -EINVAL;  in versatile_pci_parse_request_of_pci_ranges()
116 	struct device *dev = &pdev->dev;  in versatile_pci_probe()
118 	int ret, i, myslot = -1;  in versatile_pci_probe()
127 		return -ENOMEM;  in versatile_pci_probe()
149 	 * We need to discover the PCI core first to configure itself  in versatile_pci_probe()
150 	 * before the main PCI probing is performed  in versatile_pci_probe()
159 	if (myslot == -1) {  in versatile_pci_probe()
160 		dev_err(dev, "Cannot find PCI core!\n");  in versatile_pci_probe()
161 		return -EIO;  in versatile_pci_probe()
164 	 * Do not to map Versatile FPGA PCI device into memory space  in versatile_pci_probe()
168 	dev_info(dev, "PCI core found (slot %d)\n", myslot);  in versatile_pci_probe()
178 	 * Configure the PCI inbound memory windows to be 1:1 mapped to SDRAM  in versatile_pci_probe()
187 	 * QEMU therefore attempts to auto-detect old broken kernels  in versatile_pci_probe()
189 	 * QEMU. Since we now use the correct (ie matching-hardware)  in versatile_pci_probe()
200 	list_splice_init(&pci_res, &bridge->windows);  in versatile_pci_probe()
201 	bridge->dev.parent = dev;  in versatile_pci_probe()
202 	bridge->sysdata = NULL;  in versatile_pci_probe()
203 	bridge->busnr = 0;  in versatile_pci_probe()
204 	bridge->ops = &pci_versatile_ops;  in versatile_pci_probe()
205 	bridge->map_irq = of_irq_parse_and_map_pci;  in versatile_pci_probe()
206 	bridge->swizzle_irq = pci_common_swizzle;  in versatile_pci_probe()
212 	bus = bridge->bus;  in versatile_pci_probe()
215 	list_for_each_entry(child, &bus->children, node)  in versatile_pci_probe()
223 	{ .compatible = "arm,versatile-pci", },
230 		.name = "versatile-pci",
238 MODULE_DESCRIPTION("Versatile PCI driver");