1 // SPDX-License-Identifier: GPL-2.0
17 #include <linux/phy/phy.h>
20 #include "pcie-iproc.h"
24 		.compatible = "brcm,iproc-pcie",
27 		.compatible = "brcm,iproc-pcie-paxb-v2",
30 		.compatible = "brcm,iproc-pcie-paxc",
33 		.compatible = "brcm,iproc-pcie-paxc-v2",
42 	struct device *dev = &pdev->dev;  in iproc_pcie_pltfm_probe()
43 	struct iproc_pcie *pcie;  in iproc_pcie_pltfm_probe()  local
44 	struct device_node *np = dev->of_node;  in iproc_pcie_pltfm_probe()
51 	bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));  in iproc_pcie_pltfm_probe()
53 		return -ENOMEM;  in iproc_pcie_pltfm_probe()
55 	pcie = pci_host_bridge_priv(bridge);  in iproc_pcie_pltfm_probe()
57 	pcie->dev = dev;  in iproc_pcie_pltfm_probe()
58 	pcie->type = (enum iproc_pcie_type) of_device_get_match_data(dev);  in iproc_pcie_pltfm_probe()
66 	pcie->base = devm_pci_remap_cfgspace(dev, reg.start,  in iproc_pcie_pltfm_probe()
68 	if (!pcie->base) {  in iproc_pcie_pltfm_probe()
70 		return -ENOMEM;  in iproc_pcie_pltfm_probe()
72 	pcie->base_addr = reg.start;  in iproc_pcie_pltfm_probe()
74 	if (of_property_read_bool(np, "brcm,pcie-ob")) {  in iproc_pcie_pltfm_probe()
77 		ret = of_property_read_u32(np, "brcm,pcie-ob-axi-offset",  in iproc_pcie_pltfm_probe()
81 				"missing brcm,pcie-ob-axi-offset property\n");  in iproc_pcie_pltfm_probe()
84 		pcie->ob.axi_offset = val;  in iproc_pcie_pltfm_probe()
85 		pcie->need_ob_cfg = true;  in iproc_pcie_pltfm_probe()
89 	 * DT nodes are not used by all platforms that use the iProc PCIe  in iproc_pcie_pltfm_probe()
91 	 * configuration, "dma-ranges" would have been present in DT  in iproc_pcie_pltfm_probe()
93 	pcie->need_ib_cfg = of_property_read_bool(np, "dma-ranges");  in iproc_pcie_pltfm_probe()
95 	/* PHY use is optional */  in iproc_pcie_pltfm_probe()
96 	pcie->phy = devm_phy_get(dev, "pcie-phy");  in iproc_pcie_pltfm_probe()
97 	if (IS_ERR(pcie->phy)) {  in iproc_pcie_pltfm_probe()
98 		if (PTR_ERR(pcie->phy) == -EPROBE_DEFER)  in iproc_pcie_pltfm_probe()
99 			return -EPROBE_DEFER;  in iproc_pcie_pltfm_probe()
100 		pcie->phy = NULL;  in iproc_pcie_pltfm_probe()
111 	switch (pcie->type) {  in iproc_pcie_pltfm_probe()
116 		pcie->map_irq = of_irq_parse_and_map_pci;  in iproc_pcie_pltfm_probe()
119 	ret = iproc_pcie_setup(pcie, &resources);  in iproc_pcie_pltfm_probe()
121 		dev_err(dev, "PCIe controller setup failed\n");  in iproc_pcie_pltfm_probe()
126 	platform_set_drvdata(pdev, pcie);  in iproc_pcie_pltfm_probe()
132 	struct iproc_pcie *pcie = platform_get_drvdata(pdev);  in iproc_pcie_pltfm_remove()  local
134 	return iproc_pcie_remove(pcie);  in iproc_pcie_pltfm_remove()
139 	struct iproc_pcie *pcie = platform_get_drvdata(pdev);  in iproc_pcie_pltfm_shutdown()  local
141 	iproc_pcie_shutdown(pcie);  in iproc_pcie_pltfm_shutdown()
146 		.name = "iproc-pcie",
156 MODULE_DESCRIPTION("Broadcom iPROC PCIe platform driver");