These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / pci / host / pcie-iproc-bcma.c

diff --git a/kernel/drivers/pci/host/pcie-iproc-bcma.c b/kernel/drivers/pci/host/pcie-iproc-bcma.c
new file mode 100644 (file)
index 0000000..96a7d99
--- /dev/null
+++ b/kernel/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");