forked from Minki/linux
6e0832fa43
Native PCI drivers for root complex devices were originally all in drivers/pci/host/. Some of these devices can also be operated in endpoint mode. Drivers for endpoint mode didn't seem to fit in the "host" directory, so we put both the root complex and endpoint drivers in per-device directories, e.g., drivers/pci/dwc/, drivers/pci/cadence/, etc. These per-device directories contain trivial Kconfig and Makefiles and clutter drivers/pci/. Make a new drivers/pci/controllers/ directory and collect all the device-specific drivers there. No functional change intended. Link: https://lkml.kernel.org/r/1520304202-232891-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
// 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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