controller/cadence/pcie-cadence-ep.c

14 #include "pcie-cadence.h"
20 static u8 cdns_pcie_get_fn_from_vfn(struct cdns_pcie *pcie, u8 fn, u8 vfn)
28 	first_vf_offset = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_SRIOV_VF_OFFSET);
29 	stride = cdns_pcie_ep_fn_readw(pcie, fn, cap +  PCI_SRIOV_VF_STRIDE);
40 	struct cdns_pcie *pcie = &ep->pcie;
48 		cdns_pcie_ep_fn_writew(pcie, fn, reg, hdr->deviceid);
52 	cdns_pcie_ep_fn_writew(pcie, fn, PCI_DEVICE_ID, hdr->deviceid);
53 	cdns_pcie_ep_fn_writeb(pcie, fn, PCI_REVISION_ID, hdr->revid);
54 	cdns_pcie_ep_fn_writeb(pcie, fn, PCI_CLASS_PROG, hdr->progif_code);
55 	cdns_pcie_ep_fn_writew(pcie, fn, PCI_CLASS_DEVICE,
57 	cdns_pcie_ep_fn_writeb(pcie, fn, PCI_CACHE_LINE_SIZE,
59 	cdns_pcie_ep_fn_writew(pcie, fn, PCI_SUBSYSTEM_ID, hdr->subsys_id);
60 	cdns_pcie_ep_fn_writeb(pcie, fn, PCI_INTERRUPT_PIN, hdr->interrupt_pin);
71 		cdns_pcie_writel(pcie, CDNS_PCIE_LM_ID, id);
82 	struct cdns_pcie *pcie = &ep->pcie;
127 		cfg = cdns_pcie_readl(pcie, reg);
132 		cdns_pcie_writel(pcie, reg, cfg);
135 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
136 	cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar),
138 	cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar),
153 	struct cdns_pcie *pcie = &ep->pcie;
165 		cfg = cdns_pcie_readl(pcie, reg);
169 		cdns_pcie_writel(pcie, reg, cfg);
172 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
173 	cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar), 0);
174 	cdns_pcie_writel(pcie, CDNS_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar), 0);
185 	struct cdns_pcie *pcie = &ep->pcie;
194 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
195 	cdns_pcie_set_outbound_region(pcie, 0, fn, r, false, addr, pci_addr, size);
207 	struct cdns_pcie *pcie = &ep->pcie;
217 	cdns_pcie_reset_outbound_region(pcie, r);
226 	struct cdns_pcie *pcie = &ep->pcie;
230 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
236 	flags = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_FLAGS);
240 	cdns_pcie_ep_fn_writew(pcie, fn, cap + PCI_MSI_FLAGS, flags);
248 	struct cdns_pcie *pcie = &ep->pcie;
252 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
255 	flags = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_FLAGS);
271 	struct cdns_pcie *pcie = &ep->pcie;
275 	func_no = cdns_pcie_get_fn_from_vfn(pcie, func_no, vfunc_no);
278 	val = cdns_pcie_ep_fn_readw(pcie, func_no, reg);
292 	struct cdns_pcie *pcie = &ep->pcie;
296 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
299 	val = cdns_pcie_ep_fn_readw(pcie, fn, reg);
302 	cdns_pcie_ep_fn_writew(pcie, fn, reg, val);
307 	cdns_pcie_ep_fn_writel(pcie, fn, reg, val);
312 	cdns_pcie_ep_fn_writel(pcie, fn, reg, val);
320 	struct cdns_pcie *pcie = &ep->pcie;
332 		cdns_pcie_set_outbound_region_for_normal_msg(pcie, 0, fn, 0,
347 	status = cdns_pcie_ep_fn_readw(pcie, fn, PCI_STATUS);
350 		cdns_pcie_ep_fn_writew(pcie, fn, PCI_STATUS, status);
365 	cmd = cdns_pcie_ep_fn_readw(&ep->pcie, fn, PCI_COMMAND);
381 	struct cdns_pcie *pcie = &ep->pcie;
387 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
390 	flags = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_FLAGS);
402 	data = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_DATA_64);
406 	pci_addr = cdns_pcie_ep_fn_readl(pcie, fn, cap + PCI_MSI_ADDRESS_HI);
408 	pci_addr |= cdns_pcie_ep_fn_readl(pcie, fn, cap + PCI_MSI_ADDRESS_LO);
415 		cdns_pcie_set_outbound_region(pcie, 0, fn, 0,
435 	struct cdns_pcie *pcie = &ep->pcie;
442 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
445 	flags = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_FLAGS);
457 	data = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSI_DATA_64);
461 	pci_addr = cdns_pcie_ep_fn_readl(pcie, fn, cap + PCI_MSI_ADDRESS_HI);
463 	pci_addr |= cdns_pcie_ep_fn_readl(pcie, fn, cap + PCI_MSI_ADDRESS_LO);
486 	struct cdns_pcie *pcie = &ep->pcie;
498 	fn = cdns_pcie_get_fn_from_vfn(pcie, fn, vfn);
501 	flags = cdns_pcie_ep_fn_readw(pcie, fn, cap + PCI_MSIX_FLAGS);
506 	tbl_offset = cdns_pcie_ep_fn_readl(pcie, fn, reg);
518 		cdns_pcie_set_outbound_region(pcie, 0, fn, 0,
535 	struct cdns_pcie *pcie = &ep->pcie;
536 	struct device *dev = pcie->dev;
562 	struct cdns_pcie *pcie = &ep->pcie;
563 	struct device *dev = pcie->dev;
572 	cdns_pcie_writel(pcie, CDNS_PCIE_LM_EP_FUNC_CFG, epc->function_num_map);
581 	value  = cdns_pcie_readl(pcie, reg);
583 	cdns_pcie_writel(pcie, reg, value);
590 			value = cdns_pcie_ep_fn_readl(pcie, epf,
594 			cdns_pcie_ep_fn_writel(pcie, epf,
600 	ret = cdns_pcie_start_link(pcie);
651 	struct device *dev = ep->pcie.dev;
654 	struct cdns_pcie *pcie = &ep->pcie;
661 	pcie->is_rc = false;
663 	pcie->reg_base = devm_platform_ioremap_resource_byname(pdev, "reg");
664 	if (IS_ERR(pcie->reg_base)) {
666 		return PTR_ERR(pcie->reg_base);
674 	pcie->mem_res = res;
686 	cdns_pcie_writel(pcie, CDNS_PCIE_LM_EP_FUNC_CFG, BIT(0));
723 	ret = pci_epc_mem_init(epc, pcie->mem_res->start,
724 			       resource_size(pcie->mem_res), PAGE_SIZE);
742 		cdns_pcie_detect_quiet_min_delay_set(&ep->pcie);