Lines Matching refs:pcie
157 static void rcar_pci_write_reg(struct rcar_pcie *pcie, u32 val, in rcar_pci_write_reg() argument
160 writel(val, pcie->base + reg); in rcar_pci_write_reg()
163 static u32 rcar_pci_read_reg(struct rcar_pcie *pcie, unsigned int reg) in rcar_pci_read_reg() argument
165 return readl(pcie->base + reg); in rcar_pci_read_reg()
173 static void rcar_rmw32(struct rcar_pcie *pcie, int where, u32 mask, u32 data) in rcar_rmw32() argument
176 u32 val = rcar_pci_read_reg(pcie, where & ~3); in rcar_rmw32()
180 rcar_pci_write_reg(pcie, val, where & ~3); in rcar_rmw32()
183 static u32 rcar_read_conf(struct rcar_pcie *pcie, int where) in rcar_read_conf() argument
186 u32 val = rcar_pci_read_reg(pcie, where & ~3); in rcar_read_conf()
192 static int rcar_pcie_config_access(struct rcar_pcie *pcie, in rcar_pcie_config_access() argument
223 *data = rcar_pci_read_reg(pcie, PCICONF(index)); in rcar_pcie_config_access()
227 pcie->root_bus_nr = *data & 0xff; in rcar_pcie_config_access()
229 rcar_pci_write_reg(pcie, *data, PCICONF(index)); in rcar_pcie_config_access()
235 if (pcie->root_bus_nr < 0) in rcar_pcie_config_access()
239 rcar_pci_write_reg(pcie, rcar_pci_read_reg(pcie, PCIEERRFR), PCIEERRFR); in rcar_pcie_config_access()
242 rcar_pci_write_reg(pcie, PCIE_CONF_BUS(bus->number) | in rcar_pcie_config_access()
246 if (bus->parent->number == pcie->root_bus_nr) in rcar_pcie_config_access()
247 rcar_pci_write_reg(pcie, CONFIG_SEND_ENABLE | TYPE0, PCIECCTLR); in rcar_pcie_config_access()
249 rcar_pci_write_reg(pcie, CONFIG_SEND_ENABLE | TYPE1, PCIECCTLR); in rcar_pcie_config_access()
252 if (rcar_pci_read_reg(pcie, PCIEERRFR) & UNSUPPORTED_REQUEST) in rcar_pcie_config_access()
256 if (rcar_read_conf(pcie, RCONF(PCI_STATUS)) & in rcar_pcie_config_access()
261 *data = rcar_pci_read_reg(pcie, PCIECDR); in rcar_pcie_config_access()
263 rcar_pci_write_reg(pcie, *data, PCIECDR); in rcar_pcie_config_access()
266 rcar_pci_write_reg(pcie, 0, PCIECCTLR); in rcar_pcie_config_access()
274 struct rcar_pcie *pcie = bus->sysdata; in rcar_pcie_read_conf() local
277 ret = rcar_pcie_config_access(pcie, RCAR_PCI_ACCESS_READ, in rcar_pcie_read_conf()
299 struct rcar_pcie *pcie = bus->sysdata; in rcar_pcie_write_conf() local
304 ret = rcar_pcie_config_access(pcie, RCAR_PCI_ACCESS_READ, in rcar_pcie_write_conf()
323 ret = rcar_pcie_config_access(pcie, RCAR_PCI_ACCESS_WRITE, in rcar_pcie_write_conf()
334 static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie, in rcar_pcie_setup_window() argument
342 rcar_pci_write_reg(pcie, 0x00000000, PCIEPTCTLR(win)); in rcar_pcie_setup_window()
350 rcar_pci_write_reg(pcie, mask << 7, PCIEPAMR(win)); in rcar_pcie_setup_window()
357 rcar_pci_write_reg(pcie, upper_32_bits(res_start), PCIEPAUR(win)); in rcar_pcie_setup_window()
358 rcar_pci_write_reg(pcie, lower_32_bits(res_start) & ~0x7F, in rcar_pcie_setup_window()
366 rcar_pci_write_reg(pcie, mask, PCIEPTCTLR(win)); in rcar_pcie_setup_window()
400 static void rcar_pcie_force_speedup(struct rcar_pcie *pcie) in rcar_pcie_force_speedup() argument
402 struct device *dev = pcie->dev; in rcar_pcie_force_speedup()
406 if ((rcar_pci_read_reg(pcie, MACS2R) & LINK_SPEED) != LINK_SPEED_5_0GTS) in rcar_pcie_force_speedup()
409 if (rcar_pci_read_reg(pcie, MACCTLR) & SPEED_CHANGE) { in rcar_pcie_force_speedup()
414 macsr = rcar_pci_read_reg(pcie, MACSR); in rcar_pcie_force_speedup()
419 rcar_rmw32(pcie, EXPCAP(12), PCI_EXP_LNKSTA_CLS, in rcar_pcie_force_speedup()
423 rcar_rmw32(pcie, MACCGSPSETR, SPCNGRSN, 0); in rcar_pcie_force_speedup()
427 rcar_pci_write_reg(pcie, macsr, MACSR); in rcar_pcie_force_speedup()
430 rcar_rmw32(pcie, MACCTLR, SPEED_CHANGE, SPEED_CHANGE); in rcar_pcie_force_speedup()
433 macsr = rcar_pci_read_reg(pcie, MACSR); in rcar_pcie_force_speedup()
436 rcar_pci_write_reg(pcie, macsr, MACSR); in rcar_pcie_force_speedup()
454 static int rcar_pcie_enable(struct rcar_pcie *pcie) in rcar_pcie_enable() argument
456 struct device *dev = pcie->dev; in rcar_pcie_enable()
457 struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie); in rcar_pcie_enable()
462 rcar_pcie_force_speedup(pcie); in rcar_pcie_enable()
464 rcar_pcie_setup(&bridge->windows, pcie); in rcar_pcie_enable()
469 bridge->sysdata = pcie; in rcar_pcie_enable()
470 bridge->busnr = pcie->root_bus_nr; in rcar_pcie_enable()
475 bridge->msi = &pcie->msi.chip; in rcar_pcie_enable()
494 static int phy_wait_for_ack(struct rcar_pcie *pcie) in phy_wait_for_ack() argument
496 struct device *dev = pcie->dev; in phy_wait_for_ack()
500 if (rcar_pci_read_reg(pcie, H1_PCIEPHYADRR) & PHY_ACK) in phy_wait_for_ack()
511 static void phy_write_reg(struct rcar_pcie *pcie, in phy_write_reg() argument
523 rcar_pci_write_reg(pcie, data, H1_PCIEPHYDOUTR); in phy_write_reg()
524 rcar_pci_write_reg(pcie, phyaddr, H1_PCIEPHYADRR); in phy_write_reg()
527 phy_wait_for_ack(pcie); in phy_write_reg()
530 rcar_pci_write_reg(pcie, 0, H1_PCIEPHYDOUTR); in phy_write_reg()
531 rcar_pci_write_reg(pcie, 0, H1_PCIEPHYADRR); in phy_write_reg()
534 phy_wait_for_ack(pcie); in phy_write_reg()
537 static int rcar_pcie_wait_for_phyrdy(struct rcar_pcie *pcie) in rcar_pcie_wait_for_phyrdy() argument
542 if (rcar_pci_read_reg(pcie, PCIEPHYSR) & PHYRDY) in rcar_pcie_wait_for_phyrdy()
551 static int rcar_pcie_wait_for_dl(struct rcar_pcie *pcie) in rcar_pcie_wait_for_dl() argument
556 if ((rcar_pci_read_reg(pcie, PCIETSTR) & DATA_LINK_ACTIVE)) in rcar_pcie_wait_for_dl()
566 static int rcar_pcie_hw_init(struct rcar_pcie *pcie) in rcar_pcie_hw_init() argument
571 rcar_pci_write_reg(pcie, 0, PCIETCTLR); in rcar_pcie_hw_init()
574 rcar_pci_write_reg(pcie, 1, PCIEMSR); in rcar_pcie_hw_init()
576 err = rcar_pcie_wait_for_phyrdy(pcie); in rcar_pcie_hw_init()
585 rcar_pci_write_reg(pcie, PCI_CLASS_BRIDGE_PCI << 16, IDSETR1); in rcar_pcie_hw_init()
591 rcar_rmw32(pcie, RCONF(PCI_SECONDARY_BUS), 0xff, 1); in rcar_pcie_hw_init()
592 rcar_rmw32(pcie, RCONF(PCI_SUBORDINATE_BUS), 0xff, 1); in rcar_pcie_hw_init()
595 rcar_rmw32(pcie, REXPCAP(0), 0xff, PCI_CAP_ID_EXP); in rcar_pcie_hw_init()
596 rcar_rmw32(pcie, REXPCAP(PCI_EXP_FLAGS), in rcar_pcie_hw_init()
598 rcar_rmw32(pcie, RCONF(PCI_HEADER_TYPE), 0x7f, in rcar_pcie_hw_init()
602 rcar_rmw32(pcie, REXPCAP(PCI_EXP_LNKCAP), PCI_EXP_LNKCAP_DLLLARC, in rcar_pcie_hw_init()
606 rcar_rmw32(pcie, REXPCAP(PCI_EXP_SLTCAP), PCI_EXP_SLTCAP_PSN, 0); in rcar_pcie_hw_init()
609 rcar_rmw32(pcie, TLCTLR + 1, 0x3f, 50); in rcar_pcie_hw_init()
612 rcar_rmw32(pcie, RVCCAP(0), 0xfff00000, 0); in rcar_pcie_hw_init()
616 rcar_pci_write_reg(pcie, 0x801f0000, PCIEMSITXR); in rcar_pcie_hw_init()
619 rcar_pci_write_reg(pcie, CFINIT, PCIETCTLR); in rcar_pcie_hw_init()
622 err = rcar_pcie_wait_for_dl(pcie); in rcar_pcie_hw_init()
627 rcar_rmw32(pcie, PCIEINTXR, 0, 0xF << 8); in rcar_pcie_hw_init()
634 static int rcar_pcie_phy_init_h1(struct rcar_pcie *pcie) in rcar_pcie_phy_init_h1() argument
637 phy_write_reg(pcie, 0, 0x42, 0x1, 0x0EC34191); in rcar_pcie_phy_init_h1()
638 phy_write_reg(pcie, 1, 0x42, 0x1, 0x0EC34180); in rcar_pcie_phy_init_h1()
639 phy_write_reg(pcie, 0, 0x43, 0x1, 0x00210188); in rcar_pcie_phy_init_h1()
640 phy_write_reg(pcie, 1, 0x43, 0x1, 0x00210188); in rcar_pcie_phy_init_h1()
641 phy_write_reg(pcie, 0, 0x44, 0x1, 0x015C0014); in rcar_pcie_phy_init_h1()
642 phy_write_reg(pcie, 1, 0x44, 0x1, 0x015C0014); in rcar_pcie_phy_init_h1()
643 phy_write_reg(pcie, 1, 0x4C, 0x1, 0x786174A0); in rcar_pcie_phy_init_h1()
644 phy_write_reg(pcie, 1, 0x4D, 0x1, 0x048000BB); in rcar_pcie_phy_init_h1()
645 phy_write_reg(pcie, 0, 0x51, 0x1, 0x079EC062); in rcar_pcie_phy_init_h1()
646 phy_write_reg(pcie, 0, 0x52, 0x1, 0x20000000); in rcar_pcie_phy_init_h1()
647 phy_write_reg(pcie, 1, 0x52, 0x1, 0x20000000); in rcar_pcie_phy_init_h1()
648 phy_write_reg(pcie, 1, 0x56, 0x1, 0x00003806); in rcar_pcie_phy_init_h1()
650 phy_write_reg(pcie, 0, 0x60, 0x1, 0x004B03A5); in rcar_pcie_phy_init_h1()
651 phy_write_reg(pcie, 0, 0x64, 0x1, 0x3F0F1F0F); in rcar_pcie_phy_init_h1()
652 phy_write_reg(pcie, 0, 0x66, 0x1, 0x00008000); in rcar_pcie_phy_init_h1()
657 static int rcar_pcie_phy_init_gen2(struct rcar_pcie *pcie) in rcar_pcie_phy_init_gen2() argument
663 rcar_pci_write_reg(pcie, 0x000f0030, GEN2_PCIEPHYADDR); in rcar_pcie_phy_init_gen2()
664 rcar_pci_write_reg(pcie, 0x00381203, GEN2_PCIEPHYDATA); in rcar_pcie_phy_init_gen2()
665 rcar_pci_write_reg(pcie, 0x00000001, GEN2_PCIEPHYCTRL); in rcar_pcie_phy_init_gen2()
666 rcar_pci_write_reg(pcie, 0x00000006, GEN2_PCIEPHYCTRL); in rcar_pcie_phy_init_gen2()
668 rcar_pci_write_reg(pcie, 0x000f0054, GEN2_PCIEPHYADDR); in rcar_pcie_phy_init_gen2()
670 rcar_pci_write_reg(pcie, 0x13802007, GEN2_PCIEPHYDATA); in rcar_pcie_phy_init_gen2()
671 rcar_pci_write_reg(pcie, 0x00000001, GEN2_PCIEPHYCTRL); in rcar_pcie_phy_init_gen2()
672 rcar_pci_write_reg(pcie, 0x00000006, GEN2_PCIEPHYCTRL); in rcar_pcie_phy_init_gen2()
677 static int rcar_pcie_phy_init_gen3(struct rcar_pcie *pcie) in rcar_pcie_phy_init_gen3() argument
681 err = phy_init(pcie->phy); in rcar_pcie_phy_init_gen3()
685 err = phy_power_on(pcie->phy); in rcar_pcie_phy_init_gen3()
687 phy_exit(pcie->phy); in rcar_pcie_phy_init_gen3()
730 struct rcar_pcie *pcie = data; in rcar_pcie_msi_irq() local
731 struct rcar_msi *msi = &pcie->msi; in rcar_pcie_msi_irq()
732 struct device *dev = pcie->dev; in rcar_pcie_msi_irq()
735 reg = rcar_pci_read_reg(pcie, PCIEMSIFR); in rcar_pcie_msi_irq()
746 rcar_pci_write_reg(pcie, 1 << index, PCIEMSIFR); in rcar_pcie_msi_irq()
760 reg = rcar_pci_read_reg(pcie, PCIEMSIFR); in rcar_pcie_msi_irq()
770 struct rcar_pcie *pcie = container_of(chip, struct rcar_pcie, msi.chip); in rcar_msi_setup_irq() local
787 msg.address_lo = rcar_pci_read_reg(pcie, PCIEMSIALR) & ~MSIFE; in rcar_msi_setup_irq()
788 msg.address_hi = rcar_pci_read_reg(pcie, PCIEMSIAUR); in rcar_msi_setup_irq()
799 struct rcar_pcie *pcie = container_of(chip, struct rcar_pcie, msi.chip); in rcar_msi_setup_irqs() local
839 msg.address_lo = rcar_pci_read_reg(pcie, PCIEMSIALR) & ~MSIFE; in rcar_msi_setup_irqs()
840 msg.address_hi = rcar_pci_read_reg(pcie, PCIEMSIAUR); in rcar_msi_setup_irqs()
877 static void rcar_pcie_unmap_msi(struct rcar_pcie *pcie) in rcar_pcie_unmap_msi() argument
879 struct rcar_msi *msi = &pcie->msi; in rcar_pcie_unmap_msi()
891 static int rcar_pcie_enable_msi(struct rcar_pcie *pcie) in rcar_pcie_enable_msi() argument
893 struct device *dev = pcie->dev; in rcar_pcie_enable_msi()
894 struct rcar_msi *msi = &pcie->msi; in rcar_pcie_enable_msi()
918 rcar_msi_irq_chip.name, pcie); in rcar_pcie_enable_msi()
926 rcar_msi_irq_chip.name, pcie); in rcar_pcie_enable_msi()
940 rcar_pci_write_reg(pcie, lower_32_bits(base) | MSIFE, PCIEMSIALR); in rcar_pcie_enable_msi()
941 rcar_pci_write_reg(pcie, upper_32_bits(base), PCIEMSIAUR); in rcar_pcie_enable_msi()
944 rcar_pci_write_reg(pcie, 0xffffffff, PCIEMSIIER); in rcar_pcie_enable_msi()
949 rcar_pcie_unmap_msi(pcie); in rcar_pcie_enable_msi()
953 static void rcar_pcie_teardown_msi(struct rcar_pcie *pcie) in rcar_pcie_teardown_msi() argument
955 struct rcar_msi *msi = &pcie->msi; in rcar_pcie_teardown_msi()
958 rcar_pci_write_reg(pcie, 0, PCIEMSIIER); in rcar_pcie_teardown_msi()
961 rcar_pci_write_reg(pcie, 0, PCIEMSIALR); in rcar_pcie_teardown_msi()
965 rcar_pcie_unmap_msi(pcie); in rcar_pcie_teardown_msi()
968 static int rcar_pcie_get_resources(struct rcar_pcie *pcie) in rcar_pcie_get_resources() argument
970 struct device *dev = pcie->dev; in rcar_pcie_get_resources()
974 pcie->phy = devm_phy_optional_get(dev, "pcie"); in rcar_pcie_get_resources()
975 if (IS_ERR(pcie->phy)) in rcar_pcie_get_resources()
976 return PTR_ERR(pcie->phy); in rcar_pcie_get_resources()
982 pcie->base = devm_ioremap_resource(dev, &res); in rcar_pcie_get_resources()
983 if (IS_ERR(pcie->base)) in rcar_pcie_get_resources()
984 return PTR_ERR(pcie->base); in rcar_pcie_get_resources()
986 pcie->bus_clk = devm_clk_get(dev, "pcie_bus"); in rcar_pcie_get_resources()
987 if (IS_ERR(pcie->bus_clk)) { in rcar_pcie_get_resources()
989 return PTR_ERR(pcie->bus_clk); in rcar_pcie_get_resources()
998 pcie->msi.irq1 = i; in rcar_pcie_get_resources()
1006 pcie->msi.irq2 = i; in rcar_pcie_get_resources()
1011 irq_dispose_mapping(pcie->msi.irq1); in rcar_pcie_get_resources()
1016 static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie, in rcar_pcie_inbound_ranges() argument
1055 rcar_pci_write_reg(pcie, lower_32_bits(pci_addr), in rcar_pcie_inbound_ranges()
1057 rcar_pci_write_reg(pcie, lower_32_bits(cpu_addr), PCIELAR(idx)); in rcar_pcie_inbound_ranges()
1058 rcar_pci_write_reg(pcie, lower_32_bits(mask) | flags, in rcar_pcie_inbound_ranges()
1061 rcar_pci_write_reg(pcie, upper_32_bits(pci_addr), in rcar_pcie_inbound_ranges()
1063 rcar_pci_write_reg(pcie, upper_32_bits(cpu_addr), in rcar_pcie_inbound_ranges()
1065 rcar_pci_write_reg(pcie, 0, PCIELAMR(idx + 1)); in rcar_pcie_inbound_ranges()
1072 dev_err(pcie->dev, "Failed to map inbound regions!\n"); in rcar_pcie_inbound_ranges()
1081 static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie, in rcar_pcie_parse_map_dma_ranges() argument
1096 dev_dbg(pcie->dev, "0x%08x 0x%016llx..0x%016llx -> 0x%016llx\n", in rcar_pcie_parse_map_dma_ranges()
1099 err = rcar_pcie_inbound_ranges(pcie, &range, &index); in rcar_pcie_parse_map_dma_ranges()
1126 struct rcar_pcie *pcie; in rcar_pcie_probe() local
1132 bridge = pci_alloc_host_bridge(sizeof(*pcie)); in rcar_pcie_probe()
1136 pcie = pci_host_bridge_priv(bridge); in rcar_pcie_probe()
1138 pcie->dev = dev; in rcar_pcie_probe()
1139 platform_set_drvdata(pdev, pcie); in rcar_pcie_probe()
1141 err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, NULL); in rcar_pcie_probe()
1145 pm_runtime_enable(pcie->dev); in rcar_pcie_probe()
1146 err = pm_runtime_get_sync(pcie->dev); in rcar_pcie_probe()
1148 dev_err(pcie->dev, "pm_runtime_get_sync failed\n"); in rcar_pcie_probe()
1152 err = rcar_pcie_get_resources(pcie); in rcar_pcie_probe()
1158 err = clk_prepare_enable(pcie->bus_clk); in rcar_pcie_probe()
1164 err = rcar_pcie_parse_map_dma_ranges(pcie, dev->of_node); in rcar_pcie_probe()
1169 err = phy_init_fn(pcie); in rcar_pcie_probe()
1176 if (rcar_pcie_hw_init(pcie)) { in rcar_pcie_probe()
1182 data = rcar_pci_read_reg(pcie, MACSR); in rcar_pcie_probe()
1186 err = rcar_pcie_enable_msi(pcie); in rcar_pcie_probe()
1195 err = rcar_pcie_enable(pcie); in rcar_pcie_probe()
1203 rcar_pcie_teardown_msi(pcie); in rcar_pcie_probe()
1206 if (pcie->phy) { in rcar_pcie_probe()
1207 phy_power_off(pcie->phy); in rcar_pcie_probe()
1208 phy_exit(pcie->phy); in rcar_pcie_probe()
1212 clk_disable_unprepare(pcie->bus_clk); in rcar_pcie_probe()
1215 irq_dispose_mapping(pcie->msi.irq2); in rcar_pcie_probe()
1216 irq_dispose_mapping(pcie->msi.irq1); in rcar_pcie_probe()
1223 pci_free_resource_list(&pcie->resources); in rcar_pcie_probe()
1233 struct rcar_pcie *pcie = dev_get_drvdata(dev); in rcar_pcie_resume_noirq() local
1235 if (rcar_pci_read_reg(pcie, PMSR) && in rcar_pcie_resume_noirq()
1236 !(rcar_pci_read_reg(pcie, PCIETCTLR) & DL_DOWN)) in rcar_pcie_resume_noirq()
1240 rcar_pci_write_reg(pcie, CFINIT, PCIETCTLR); in rcar_pcie_resume_noirq()
1241 return rcar_pcie_wait_for_dl(pcie); in rcar_pcie_resume_noirq()