diff options
Diffstat (limited to 'drivers/pci/host/pcie-iproc-bcma.c')
| -rw-r--r-- | drivers/pci/host/pcie-iproc-bcma.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/pci/host/pcie-iproc-bcma.c b/drivers/pci/host/pcie-iproc-bcma.c new file mode 100644 index 000000000000..96a7d999fd5e --- /dev/null +++ b/drivers/pci/host/pcie-iproc-bcma.c @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2015 Broadcom Corporation + * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#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 pci_sys_data *sys = dev->sysdata; + struct iproc_pcie *pcie = sys->private_data; + 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 iproc_pcie *pcie; + LIST_HEAD(res); + struct resource res_mem; + int ret; + + pcie = devm_kzalloc(&bdev->dev, sizeof(*pcie), GFP_KERNEL); + if (!pcie) + return -ENOMEM; + + pcie->dev = &bdev->dev; + bcma_set_drvdata(bdev, pcie); + + pcie->base = bdev->io_addr; + + res_mem.start = bdev->addr_s[0]; + res_mem.end = bdev->addr_s[0] + SZ_128M - 1; + res_mem.name = "PCIe MEM space"; + res_mem.flags = IORESOURCE_MEM; + pci_add_resource(&res, &res_mem); + + pcie->map_irq = iproc_pcie_bcma_map_irq; + + ret = iproc_pcie_setup(pcie, &res); + if (ret) + dev_err(pcie->dev, "PCIe controller setup failed\n"); + + pci_free_resource_list(&res); + + return ret; +} + +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"); |