1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2015 Broadcom Corporation 4 * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de> 5 */ 6 7 #include <linux/kernel.h> 8 #include <linux/pci.h> 9 #include <linux/module.h> 10 #include <linux/slab.h> 11 #include <linux/phy/phy.h> 12 #include <linux/bcma/bcma.h> 13 #include <linux/ioport.h> 14 15 #include "pcie-iproc.h" 16 17 18 /* NS: CLASS field is R/O, and set to wrong 0x200 value */ 19 static void bcma_pcie2_fixup_class(struct pci_dev *dev) 20 { 21 dev->class = PCI_CLASS_BRIDGE_PCI << 8; 22 } 23 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8011, bcma_pcie2_fixup_class); 24 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8012, bcma_pcie2_fixup_class); 25 26 static int iproc_pcie_bcma_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 27 { 28 struct iproc_pcie *pcie = dev->sysdata; 29 struct bcma_device *bdev = container_of(pcie->dev, struct bcma_device, dev); 30 31 return bcma_core_irq(bdev, 5); 32 } 33 34 static int iproc_pcie_bcma_probe(struct bcma_device *bdev) 35 { 36 struct device *dev = &bdev->dev; 37 struct iproc_pcie *pcie; 38 LIST_HEAD(resources); 39 struct pci_host_bridge *bridge; 40 int ret; 41 42 bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie)); 43 if (!bridge) 44 return -ENOMEM; 45 46 pcie = pci_host_bridge_priv(bridge); 47 48 pcie->dev = dev; 49 50 pcie->type = IPROC_PCIE_PAXB_BCMA; 51 pcie->base = bdev->io_addr; 52 if (!pcie->base) { 53 dev_err(dev, "no controller registers\n"); 54 return -ENOMEM; 55 } 56 57 pcie->base_addr = bdev->addr; 58 59 pcie->mem.start = bdev->addr_s[0]; 60 pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1; 61 pcie->mem.name = "PCIe MEM space"; 62 pcie->mem.flags = IORESOURCE_MEM; 63 pci_add_resource(&resources, &pcie->mem); 64 65 pcie->map_irq = iproc_pcie_bcma_map_irq; 66 67 ret = iproc_pcie_setup(pcie, &resources); 68 if (ret) { 69 dev_err(dev, "PCIe controller setup failed\n"); 70 pci_free_resource_list(&resources); 71 return ret; 72 } 73 74 bcma_set_drvdata(bdev, pcie); 75 return 0; 76 } 77 78 static void iproc_pcie_bcma_remove(struct bcma_device *bdev) 79 { 80 struct iproc_pcie *pcie = bcma_get_drvdata(bdev); 81 82 iproc_pcie_remove(pcie); 83 } 84 85 static const struct bcma_device_id iproc_pcie_bcma_table[] = { 86 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_PCIEG2, BCMA_ANY_REV, BCMA_ANY_CLASS), 87 {}, 88 }; 89 MODULE_DEVICE_TABLE(bcma, iproc_pcie_bcma_table); 90 91 static struct bcma_driver iproc_pcie_bcma_driver = { 92 .name = KBUILD_MODNAME, 93 .id_table = iproc_pcie_bcma_table, 94 .probe = iproc_pcie_bcma_probe, 95 .remove = iproc_pcie_bcma_remove, 96 }; 97 98 static int __init iproc_pcie_bcma_init(void) 99 { 100 return bcma_driver_register(&iproc_pcie_bcma_driver); 101 } 102 module_init(iproc_pcie_bcma_init); 103 104 static void __exit iproc_pcie_bcma_exit(void) 105 { 106 bcma_driver_unregister(&iproc_pcie_bcma_driver); 107 } 108 module_exit(iproc_pcie_bcma_exit); 109 110 MODULE_AUTHOR("Hauke Mehrtens"); 111 MODULE_DESCRIPTION("Broadcom iProc PCIe BCMA driver"); 112 MODULE_LICENSE("GPL v2"); 113