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()
86 static void ls_pcie_disable_outbound_atus(struct ls_pcie *pcie)  in ls_pcie_disable_outbound_atus()  argument
91 		dw_pcie_disable_atu(pcie->pci, i, DW_PCIE_REGION_OUTBOUND);  in ls_pcie_disable_outbound_atus()
97 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls1021_pcie_link_up()  local
99 	if (!pcie->scfg)  in ls1021_pcie_link_up()
102 	regmap_read(pcie->scfg, SCFG_PEXMSCPORTSR(pcie->index), &state);  in ls1021_pcie_link_up()
113 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_link_up()  local
116 	state = (ioread32(pcie->lut + pcie->drvdata->lut_dbg) >>  in ls_pcie_link_up()
117 		 pcie->drvdata->ltssm_shift) &  in ls_pcie_link_up()
127 static void ls_pcie_fix_error_response(struct ls_pcie *pcie)  in ls_pcie_fix_error_response()  argument
129 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_fix_error_response()
137 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_host_init()  local
144 	ls_pcie_disable_outbound_atus(pcie);  in ls_pcie_host_init()
145 	ls_pcie_fix_error_response(pcie);  in ls_pcie_host_init()
148 	ls_pcie_clear_multifunction(pcie);  in ls_pcie_host_init()
151 	ls_pcie_drop_msg_tlp(pcie);  in ls_pcie_host_init()
161 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls1021_pcie_host_init()  local
166 	pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node,  in ls1021_pcie_host_init()
167 						     "fsl,pcie-scfg");  in ls1021_pcie_host_init()
168 	if (IS_ERR(pcie->scfg)) {  in ls1021_pcie_host_init()
169 		ret = PTR_ERR(pcie->scfg);  in ls1021_pcie_host_init()
171 		pcie->scfg = NULL;  in ls1021_pcie_host_init()
176 				       "fsl,pcie-scfg", index, 2)) {  in ls1021_pcie_host_init()
177 		pcie->scfg = NULL;  in ls1021_pcie_host_init()
180 	pcie->index = index[1];  in ls1021_pcie_host_init()
264 	{ .compatible = "fsl,ls1012a-pcie", .data = &ls1046_drvdata },
265 	{ .compatible = "fsl,ls1021a-pcie", .data = &ls1021_drvdata },
266 	{ .compatible = "fsl,ls1028a-pcie", .data = &ls2088_drvdata },
267 	{ .compatible = "fsl,ls1043a-pcie", .data = &ls1043_drvdata },
268 	{ .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata },
269 	{ .compatible = "fsl,ls2080a-pcie", .data = &ls2080_drvdata },
270 	{ .compatible = "fsl,ls2085a-pcie", .data = &ls2080_drvdata },
271 	{ .compatible = "fsl,ls2088a-pcie", .data = &ls2088_drvdata },
272 	{ .compatible = "fsl,ls1088a-pcie", .data = &ls2088_drvdata },
276 static int __init ls_add_pcie_port(struct ls_pcie *pcie)  in ls_add_pcie_port()  argument
278 	struct dw_pcie *pci = pcie->pci;  in ls_add_pcie_port()
283 	pp->ops = pcie->drvdata->ops;  in ls_add_pcie_port()
298 	struct ls_pcie *pcie;  in ls_pcie_probe()  local
302 	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);  in ls_pcie_probe()
303 	if (!pcie)  in ls_pcie_probe()
310 	pcie->drvdata = of_device_get_match_data(dev);  in ls_pcie_probe()
313 	pci->ops = pcie->drvdata->dw_pcie_ops;  in ls_pcie_probe()
315 	pcie->pci = pci;  in ls_pcie_probe()
322 	pcie->lut = pci->dbi_base + pcie->drvdata->lut_offset;  in ls_pcie_probe()
324 	if (!ls_pcie_is_bridge(pcie))  in ls_pcie_probe()
327 	platform_set_drvdata(pdev, pcie);  in ls_pcie_probe()
329 	ret = ls_add_pcie_port(pcie);  in ls_pcie_probe()
338 		.name = "layerscape-pcie",