3  * PCIe host controller driver for Freescale Layerscape SoCs
26 #include "pcie-designware.h"
52 #define ls_pcie_pf_readl_addr(addr)	ls_pcie_pf_readl(pcie, addr)
55 static bool ls_pcie_is_bridge(struct ls_pcie *pcie)  in ls_pcie_is_bridge()  argument
57 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_is_bridge()
67 static void ls_pcie_clear_multifunction(struct ls_pcie *pcie)  in ls_pcie_clear_multifunction()  argument
69 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_clear_multifunction()
75 static void ls_pcie_drop_msg_tlp(struct ls_pcie *pcie)  in ls_pcie_drop_msg_tlp()  argument
78 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_drop_msg_tlp()
86 static void ls_pcie_fix_error_response(struct ls_pcie *pcie)  in ls_pcie_fix_error_response()  argument
88 	struct dw_pcie *pci = pcie->pci;  in ls_pcie_fix_error_response()
93 static u32 ls_pcie_pf_readl(struct ls_pcie *pcie, u32 off)  in ls_pcie_pf_readl()  argument
95 	if (pcie->big_endian)  in ls_pcie_pf_readl()
96 		return ioread32be(pcie->pf_base + off);  in ls_pcie_pf_readl()
98 	return ioread32(pcie->pf_base + off);  in ls_pcie_pf_readl()
101 static void ls_pcie_pf_writel(struct ls_pcie *pcie, u32 off, u32 val)  in ls_pcie_pf_writel()  argument
103 	if (pcie->big_endian)  in ls_pcie_pf_writel()
104 		iowrite32be(val, pcie->pf_base + off);  in ls_pcie_pf_writel()
106 		iowrite32(val, pcie->pf_base + off);  in ls_pcie_pf_writel()
112 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_send_turnoff_msg()  local
116 	val = ls_pcie_pf_readl(pcie, LS_PCIE_PF_MCR);  in ls_pcie_send_turnoff_msg()
118 	ls_pcie_pf_writel(pcie, LS_PCIE_PF_MCR, val);  in ls_pcie_send_turnoff_msg()
125 		dev_err(pcie->pci->dev, "PME_Turn_off timeout\n");  in ls_pcie_send_turnoff_msg()
131 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_exit_from_l2()  local
139 	val = ls_pcie_pf_readl(pcie, LS_PCIE_PF_MCR);  in ls_pcie_exit_from_l2()
141 	ls_pcie_pf_writel(pcie, LS_PCIE_PF_MCR, val);  in ls_pcie_exit_from_l2()
152 		dev_err(pcie->pci->dev, "L2 exit timeout\n");  in ls_pcie_exit_from_l2()
158 	struct ls_pcie *pcie = to_ls_pcie(pci);  in ls_pcie_host_init()  local
160 	ls_pcie_fix_error_response(pcie);  in ls_pcie_host_init()
163 	ls_pcie_clear_multifunction(pcie);  in ls_pcie_host_init()
166 	ls_pcie_drop_msg_tlp(pcie);  in ls_pcie_host_init()
186 	{ .compatible = "fsl,ls1012a-pcie", .data = &layerscape_drvdata },
187 	{ .compatible = "fsl,ls1021a-pcie", .data = &ls1021a_drvdata },
188 	{ .compatible = "fsl,ls1028a-pcie", .data = &layerscape_drvdata },
189 	{ .compatible = "fsl,ls1043a-pcie", .data = &ls1021a_drvdata },
190 	{ .compatible = "fsl,ls1046a-pcie", .data = &layerscape_drvdata },
191 	{ .compatible = "fsl,ls2080a-pcie", .data = &layerscape_drvdata },
192 	{ .compatible = "fsl,ls2085a-pcie", .data = &layerscape_drvdata },
193 	{ .compatible = "fsl,ls2088a-pcie", .data = &layerscape_drvdata },
194 	{ .compatible = "fsl,ls1088a-pcie", .data = &layerscape_drvdata },
202 	struct ls_pcie *pcie;  in ls_pcie_probe()  local
205 	pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);  in ls_pcie_probe()
206 	if (!pcie)  in ls_pcie_probe()
213 	pcie->drvdata = of_device_get_match_data(dev);  in ls_pcie_probe()
218 	pcie->pci = pci;  in ls_pcie_probe()
225 	pcie->big_endian = of_property_read_bool(dev->of_node, "big-endian");  in ls_pcie_probe()
227 	pcie->pf_base = pci->dbi_base + pcie->drvdata->pf_off;  in ls_pcie_probe()
229 	if (!ls_pcie_is_bridge(pcie))  in ls_pcie_probe()
232 	platform_set_drvdata(pdev, pcie);  in ls_pcie_probe()
239 	struct ls_pcie *pcie = dev_get_drvdata(dev);  in ls_pcie_suspend_noirq()  local
241 	if (!pcie->drvdata->pm_support)  in ls_pcie_suspend_noirq()
244 	return dw_pcie_suspend_noirq(pcie->pci);  in ls_pcie_suspend_noirq()
249 	struct ls_pcie *pcie = dev_get_drvdata(dev);  in ls_pcie_resume_noirq()  local
251 	if (!pcie->drvdata->pm_support)  in ls_pcie_resume_noirq()
254 	ls_pcie_exit_from_l2(&pcie->pci->pp);  in ls_pcie_resume_noirq()
256 	return dw_pcie_resume_noirq(pcie->pci);  in ls_pcie_resume_noirq()
266 		.name = "layerscape-pcie",