1 // SPDX-License-Identifier: GPL-2.0
16 #include <linux/phy/phy.h>
19 #include "pcie-iproc.h"
23 		.compatible = "brcm,iproc-pcie",
26 		.compatible = "brcm,iproc-pcie-paxb-v2",
29 		.compatible = "brcm,iproc-pcie-paxc",
32 		.compatible = "brcm,iproc-pcie-paxc-v2",
41 	struct device *dev = &pdev->dev;  in iproc_pltfm_pcie_probe()
42 	struct iproc_pcie *pcie;  in iproc_pltfm_pcie_probe()  local
43 	struct device_node *np = dev->of_node;  in iproc_pltfm_pcie_probe()
48 	bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));  in iproc_pltfm_pcie_probe()
50 		return -ENOMEM;  in iproc_pltfm_pcie_probe()
52 	pcie = pci_host_bridge_priv(bridge);  in iproc_pltfm_pcie_probe()
54 	pcie->dev = dev;  in iproc_pltfm_pcie_probe()
55 	pcie->type = (uintptr_t)of_device_get_match_data(dev);  in iproc_pltfm_pcie_probe()
57 	ret = of_address_to_resource(np, 0, &reg);  in iproc_pltfm_pcie_probe()
58 	if (ret < 0) {  in iproc_pltfm_pcie_probe()
63 	pcie->base = devm_pci_remap_cfgspace(dev, reg.start,  in iproc_pltfm_pcie_probe()
65 	if (!pcie->base) {  in iproc_pltfm_pcie_probe()
67 		return -ENOMEM;  in iproc_pltfm_pcie_probe()
69 	pcie->base_addr = reg.start;  in iproc_pltfm_pcie_probe()
71 	if (of_property_read_bool(np, "brcm,pcie-ob")) {  in iproc_pltfm_pcie_probe()
74 		ret = of_property_read_u32(np, "brcm,pcie-ob-axi-offset",  in iproc_pltfm_pcie_probe()
78 				"missing brcm,pcie-ob-axi-offset property\n");  in iproc_pltfm_pcie_probe()
81 		pcie->ob.axi_offset = val;  in iproc_pltfm_pcie_probe()
82 		pcie->need_ob_cfg = true;  in iproc_pltfm_pcie_probe()
86 	 * DT nodes are not used by all platforms that use the iProc PCIe  in iproc_pltfm_pcie_probe()
88 	 * configuration, "dma-ranges" would have been present in DT  in iproc_pltfm_pcie_probe()
90 	pcie->need_ib_cfg = of_property_read_bool(np, "dma-ranges");  in iproc_pltfm_pcie_probe()
92 	/* PHY use is optional */  in iproc_pltfm_pcie_probe()
93 	pcie->phy = devm_phy_optional_get(dev, "pcie-phy");  in iproc_pltfm_pcie_probe()
94 	if (IS_ERR(pcie->phy))  in iproc_pltfm_pcie_probe()
95 		return PTR_ERR(pcie->phy);  in iproc_pltfm_pcie_probe()
98 	switch (pcie->type) {  in iproc_pltfm_pcie_probe()
101 		pcie->map_irq = NULL;  in iproc_pltfm_pcie_probe()
107 	ret = iproc_pcie_setup(pcie, &bridge->windows);  in iproc_pltfm_pcie_probe()
109 		dev_err(dev, "PCIe controller setup failed\n");  in iproc_pltfm_pcie_probe()
113 	platform_set_drvdata(pdev, pcie);  in iproc_pltfm_pcie_probe()
114 	return 0;  in iproc_pltfm_pcie_probe()
119 	struct iproc_pcie *pcie = platform_get_drvdata(pdev);  in iproc_pltfm_pcie_remove()  local
121 	iproc_pcie_remove(pcie);  in iproc_pltfm_pcie_remove()
126 	struct iproc_pcie *pcie = platform_get_drvdata(pdev);  in iproc_pltfm_pcie_shutdown()  local
128 	iproc_pcie_shutdown(pcie);  in iproc_pltfm_pcie_shutdown()
133 		.name = "iproc-pcie",
143 MODULE_DESCRIPTION("Broadcom iPROC PCIe platform driver");