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