3  * PCIe host controller driver for Freescale Layerscape SoCs
23 #include "pcie-designware.h"
56 static bool ls_pcie_is_bridge(struct ls_pcie *pcie)  in ls_pcie_is_bridge()  argument
58 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_is_bridge()
68 static void ls_pcie_clear_multifunction(struct ls_pcie *pcie)  in ls_pcie_clear_multifunction()  argument
70 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_clear_multifunction()
76 static void ls_pcie_drop_msg_tlp(struct ls_pcie *pcie)  in ls_pcie_drop_msg_tlp()  argument
79 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_drop_msg_tlp()
89 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls1021_pcie_link_up()  local
91 	if (!pcie->scfg)  in ls1021_pcie_link_up()
94 	regmap_read(pcie->scfg, SCFG_PEXMSCPORTSR(pcie->index), &state);  in ls1021_pcie_link_up()
105 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_link_up()  local
108 	state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >>  in ls_pcie_link_up()
109 		 pcie->drvdata->ltssm_shift) &  in ls_pcie_link_up()
119 static void ls_pcie_fix_error_response(struct ls_pcie *pcie)  in ls_pcie_fix_error_response()  argument
121 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_fix_error_response()
129 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_host_init()  local
131 	ls_pcie_fix_error_response(pcie);  in ls_pcie_host_init()
134 	ls_pcie_clear_multifunction(pcie);  in ls_pcie_host_init()
137 	ls_pcie_drop_msg_tlp(pcie);  in ls_pcie_host_init()
145 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls1021_pcie_host_init()  local
150 	pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node,  in ls1021_pcie_host_init()
151 						     "fsl,pcie-scfg");  in ls1021_pcie_host_init()
152 	if (IS_ERR(pcie->scfg)) {  in ls1021_pcie_host_init()
153 		ret = PTR_ERR(pcie->scfg);  in ls1021_pcie_host_init()
155 		pcie->scfg = NULL;  in ls1021_pcie_host_init()
160 				       "fsl,pcie-scfg", index, 2)) {  in ls1021_pcie_host_init()
161 		pcie->scfg = NULL;  in ls1021_pcie_host_init()
164 	pcie->index = index[1];  in ls1021_pcie_host_init()
223 	{ .compatible = "fsl,ls1012a-pcie", .data = &ls1046_drvdata },
224 	{ .compatible = "fsl,ls1021a-pcie", .data = &ls1021_drvdata },
225 	{ .compatible = "fsl,ls1028a-pcie", .data = &ls2088_drvdata },
226 	{ .compatible = "fsl,ls1043a-pcie", .data = &ls1043_drvdata },
227 	{ .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata },
228 	{ .compatible = "fsl,ls2080a-pcie", .data = &ls2080_drvdata },
229 	{ .compatible = "fsl,ls2085a-pcie", .data = &ls2080_drvdata },
230 	{ .compatible = "fsl,ls2088a-pcie", .data = &ls2088_drvdata },
231 	{ .compatible = "fsl,ls1088a-pcie", .data = &ls2088_drvdata },
239 	struct ls_pcie *pcie;  in ls_pcie_probe()  local
242 	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);  in ls_pcie_probe()
243 	if (!pcie)  in ls_pcie_probe()
250 	pcie->drvdata = of_device_get_match_data(dev);  in ls_pcie_probe()
253 	pci->ops = pcie->drvdata->dw_pcie_ops;  in ls_pcie_probe()
254 	pci->pp.ops = pcie->drvdata->ops;  in ls_pcie_probe()
256 	pcie->pci = pci;  in ls_pcie_probe()
263 	pcie->lut = pci->dbi_base + pcie->drvdata->lut_offset;  in ls_pcie_probe()
265 	if (!ls_pcie_is_bridge(pcie))  in ls_pcie_probe()
268 	platform_set_drvdata(pdev, pcie);  in ls_pcie_probe()
276 		.name = "layerscape-pcie",