113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2015 Broadcom Corporation
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* Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/phy/phy.h>
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#include <linux/bcma/bcma.h>
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#include <linux/ioport.h>
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#include "pcie-iproc.h"
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/* NS: CLASS field is R/O, and set to wrong 0x200 value */
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static void bcma_pcie2_fixup_class(struct pci_dev *dev)
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{
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dev->class = PCI_CLASS_BRIDGE_PCI << 8;
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}
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DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8011, bcma_pcie2_fixup_class);
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DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8012, bcma_pcie2_fixup_class);
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static int iproc_pcie_bcma_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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struct iproc_pcie *pcie = dev->sysdata;
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struct bcma_device *bdev = container_of(pcie->dev, struct bcma_device, dev);
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return bcma_core_irq(bdev, 5);
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}
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static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
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{
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struct device *dev = &bdev->dev;
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struct iproc_pcie *pcie;
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LIST_HEAD(resources);
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struct pci_host_bridge *bridge;
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int ret;
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bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));
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if (!bridge)
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return -ENOMEM;
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pcie = pci_host_bridge_priv(bridge);
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pcie->dev = dev;
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pcie->type = IPROC_PCIE_PAXB_BCMA;
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pcie->base = bdev->io_addr;
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if (!pcie->base) {
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dev_err(dev, "no controller registers\n");
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return -ENOMEM;
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}
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pcie->base_addr = bdev->addr;
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pcie->mem.start = bdev->addr_s[0];
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pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1;
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pcie->mem.name = "PCIe MEM space";
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pcie->mem.flags = IORESOURCE_MEM;
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pci_add_resource(&resources, &pcie->mem);
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pcie->map_irq = iproc_pcie_bcma_map_irq;
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ret = iproc_pcie_setup(pcie, &resources);
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if (ret) {
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dev_err(dev, "PCIe controller setup failed\n");
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pci_free_resource_list(&resources);
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return ret;
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}
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bcma_set_drvdata(bdev, pcie);
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return 0;
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}
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static void iproc_pcie_bcma_remove(struct bcma_device *bdev)
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{
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struct iproc_pcie *pcie = bcma_get_drvdata(bdev);
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iproc_pcie_remove(pcie);
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}
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static const struct bcma_device_id iproc_pcie_bcma_table[] = {
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BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_PCIEG2, BCMA_ANY_REV, BCMA_ANY_CLASS),
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{},
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};
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MODULE_DEVICE_TABLE(bcma, iproc_pcie_bcma_table);
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static struct bcma_driver iproc_pcie_bcma_driver = {
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.name = KBUILD_MODNAME,
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.id_table = iproc_pcie_bcma_table,
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.probe = iproc_pcie_bcma_probe,
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.remove = iproc_pcie_bcma_remove,
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};
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static int __init iproc_pcie_bcma_init(void)
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{
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return bcma_driver_register(&iproc_pcie_bcma_driver);
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}
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module_init(iproc_pcie_bcma_init);
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static void __exit iproc_pcie_bcma_exit(void)
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{
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bcma_driver_unregister(&iproc_pcie_bcma_driver);
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}
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module_exit(iproc_pcie_bcma_exit);
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MODULE_AUTHOR("Hauke Mehrtens");
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MODULE_DESCRIPTION("Broadcom iProc PCIe BCMA driver");
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MODULE_LICENSE("GPL v2");
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