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- #include <linux/kernel.h>
- #include <linux/pci.h>
- #include <linux/clk.h>
- #include <linux/module.h>
- #include <linux/slab.h>
- #include <linux/interrupt.h>
- #include <linux/platform_device.h>
- #include <linux/of_address.h>
- #include <linux/of_pci.h>
- #include <linux/of_irq.h>
- #include <linux/of_platform.h>
- #include <linux/phy/phy.h>
- #include "../pci.h"
- #include "pcie-iproc.h"
- static const struct of_device_id iproc_pcie_of_match_table[] = {
- {
- .compatible = "brcm,iproc-pcie",
- .data = (int *)IPROC_PCIE_PAXB,
- }, {
- .compatible = "brcm,iproc-pcie-paxb-v2",
- .data = (int *)IPROC_PCIE_PAXB_V2,
- }, {
- .compatible = "brcm,iproc-pcie-paxc",
- .data = (int *)IPROC_PCIE_PAXC,
- }, {
- .compatible = "brcm,iproc-pcie-paxc-v2",
- .data = (int *)IPROC_PCIE_PAXC_V2,
- },
- { }
- };
- MODULE_DEVICE_TABLE(of, iproc_pcie_of_match_table);
- static int iproc_pltfm_pcie_probe(struct platform_device *pdev)
- {
- struct device *dev = &pdev->dev;
- struct iproc_pcie *pcie;
- struct device_node *np = dev->of_node;
- struct resource reg;
- 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 = (enum iproc_pcie_type) of_device_get_match_data(dev);
- ret = of_address_to_resource(np, 0, ®);
- if (ret < 0) {
- dev_err(dev, "unable to obtain controller resources\n");
- return ret;
- }
- pcie->base = devm_pci_remap_cfgspace(dev, reg.start,
- resource_size(®));
- if (!pcie->base) {
- dev_err(dev, "unable to map controller registers\n");
- return -ENOMEM;
- }
- pcie->base_addr = reg.start;
- if (of_property_read_bool(np, "brcm,pcie-ob")) {
- u32 val;
- ret = of_property_read_u32(np, "brcm,pcie-ob-axi-offset",
- &val);
- if (ret) {
- dev_err(dev,
- "missing brcm,pcie-ob-axi-offset property\n");
- return ret;
- }
- pcie->ob.axi_offset = val;
- pcie->need_ob_cfg = true;
- }
-
- pcie->need_ib_cfg = of_property_read_bool(np, "dma-ranges");
-
- pcie->phy = devm_phy_optional_get(dev, "pcie-phy");
- if (IS_ERR(pcie->phy))
- return PTR_ERR(pcie->phy);
-
- switch (pcie->type) {
- case IPROC_PCIE_PAXC:
- case IPROC_PCIE_PAXC_V2:
- pcie->map_irq = NULL;
- break;
- default:
- break;
- }
- ret = iproc_pcie_setup(pcie, &bridge->windows);
- if (ret) {
- dev_err(dev, "PCIe controller setup failed\n");
- return ret;
- }
- platform_set_drvdata(pdev, pcie);
- return 0;
- }
- static int iproc_pltfm_pcie_remove(struct platform_device *pdev)
- {
- struct iproc_pcie *pcie = platform_get_drvdata(pdev);
- return iproc_pcie_remove(pcie);
- }
- static void iproc_pltfm_pcie_shutdown(struct platform_device *pdev)
- {
- struct iproc_pcie *pcie = platform_get_drvdata(pdev);
- iproc_pcie_shutdown(pcie);
- }
- static struct platform_driver iproc_pltfm_pcie_driver = {
- .driver = {
- .name = "iproc-pcie",
- .of_match_table = of_match_ptr(iproc_pcie_of_match_table),
- },
- .probe = iproc_pltfm_pcie_probe,
- .remove = iproc_pltfm_pcie_remove,
- .shutdown = iproc_pltfm_pcie_shutdown,
- };
- module_platform_driver(iproc_pltfm_pcie_driver);
- MODULE_AUTHOR("Ray Jui <rjui@broadcom.com>");
- MODULE_DESCRIPTION("Broadcom iPROC PCIe platform driver");
- MODULE_LICENSE("GPL v2");
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