84 static inline u32 rt3883_pci_r32(struct rt3883_pci_controller *rpc,  in rt3883_pci_r32()  argument
87 	return ioread32(rpc->base + reg);  in rt3883_pci_r32()
90 static inline void rt3883_pci_w32(struct rt3883_pci_controller *rpc,  in rt3883_pci_w32()  argument
93 	iowrite32(val, rpc->base + reg);  in rt3883_pci_w32()
103 static u32 rt3883_pci_read_cfg32(struct rt3883_pci_controller *rpc,  in rt3883_pci_read_cfg32()  argument
113 	rt3883_pci_w32(rpc, address, RT3883_PCI_REG_CFGADDR);  in rt3883_pci_read_cfg32()
114 	ret = rt3883_pci_r32(rpc, RT3883_PCI_REG_CFGDATA);  in rt3883_pci_read_cfg32()
119 static void rt3883_pci_write_cfg32(struct rt3883_pci_controller *rpc,  in rt3883_pci_write_cfg32()  argument
128 	rt3883_pci_w32(rpc, address, RT3883_PCI_REG_CFGADDR);  in rt3883_pci_write_cfg32()
129 	rt3883_pci_w32(rpc, val, RT3883_PCI_REG_CFGDATA);  in rt3883_pci_write_cfg32()
134 	struct rt3883_pci_controller *rpc;  in rt3883_pci_irq_handler()  local
137 	rpc = irq_desc_get_handler_data(desc);  in rt3883_pci_irq_handler()
139 	pending = rt3883_pci_r32(rpc, RT3883_PCI_REG_PCIINT) &  in rt3883_pci_irq_handler()
140 		  rt3883_pci_r32(rpc, RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_handler()
150 		irq = irq_find_mapping(rpc->irq_domain, bit);  in rt3883_pci_irq_handler()
159 	struct rt3883_pci_controller *rpc;  in rt3883_pci_irq_unmask()  local
162 	rpc = irq_data_get_irq_chip_data(d);  in rt3883_pci_irq_unmask()
164 	t = rt3883_pci_r32(rpc, RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_unmask()
165 	rt3883_pci_w32(rpc, t | BIT(d->hwirq), RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_unmask()
167 	rt3883_pci_r32(rpc, RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_unmask()
172 	struct rt3883_pci_controller *rpc;  in rt3883_pci_irq_mask()  local
175 	rpc = irq_data_get_irq_chip_data(d);  in rt3883_pci_irq_mask()
177 	t = rt3883_pci_r32(rpc, RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_mask()
178 	rt3883_pci_w32(rpc, t & ~BIT(d->hwirq), RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_mask()
180 	rt3883_pci_r32(rpc, RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_mask()
205 			       struct rt3883_pci_controller *rpc)  in rt3883_pci_irq_init()  argument
209 	irq = irq_of_parse_and_map(rpc->intc_of_node, 0);  in rt3883_pci_irq_init()
212 			of_node_full_name(rpc->intc_of_node));  in rt3883_pci_irq_init()
217 	rt3883_pci_w32(rpc, 0, RT3883_PCI_REG_PCIENA);  in rt3883_pci_irq_init()
219 	rpc->irq_domain =  in rt3883_pci_irq_init()
220 		irq_domain_add_linear(rpc->intc_of_node, RT3883_PCI_IRQ_COUNT,  in rt3883_pci_irq_init()
222 				      rpc);  in rt3883_pci_irq_init()
223 	if (!rpc->irq_domain) {  in rt3883_pci_irq_init()
228 	irq_set_chained_handler_and_data(irq, rt3883_pci_irq_handler, rpc);  in rt3883_pci_irq_init()
236 	struct rt3883_pci_controller *rpc;  in rt3883_pci_config_read()  local
241 	rpc = pci_bus_to_rt3883_controller(bus);  in rt3883_pci_config_read()
243 	if (!rpc->pcie_ready && bus->number == 1)  in rt3883_pci_config_read()
249 	rt3883_pci_w32(rpc, address, RT3883_PCI_REG_CFGADDR);  in rt3883_pci_config_read()
250 	data = rt3883_pci_r32(rpc, RT3883_PCI_REG_CFGDATA);  in rt3883_pci_config_read()
270 	struct rt3883_pci_controller *rpc;  in rt3883_pci_config_write()  local
275 	rpc = pci_bus_to_rt3883_controller(bus);  in rt3883_pci_config_write()
277 	if (!rpc->pcie_ready && bus->number == 1)  in rt3883_pci_config_write()
283 	rt3883_pci_w32(rpc, address, RT3883_PCI_REG_CFGADDR);  in rt3883_pci_config_write()
284 	data = rt3883_pci_r32(rpc, RT3883_PCI_REG_CFGDATA);  in rt3883_pci_config_write()
300 	rt3883_pci_w32(rpc, data, RT3883_PCI_REG_CFGDATA);  in rt3883_pci_config_write()
310 static void rt3883_pci_preinit(struct rt3883_pci_controller *rpc, unsigned mode)  in rt3883_pci_preinit()  argument
377 	rt3883_pci_w32(rpc, t, RT3883_PCI_REG_PCICFG);  in rt3883_pci_preinit()
380 	rt3883_pci_r32(rpc, RT3883_PCI_REG_PCICFG);  in rt3883_pci_preinit()
386 		t = rt3883_pci_r32(rpc, RT3883_PCI_REG_STATUS(1));  in rt3883_pci_preinit()
388 		rpc->pcie_ready = t & BIT(0);  in rt3883_pci_preinit()
390 		if (!rpc->pcie_ready) {  in rt3883_pci_preinit()
410 	rt3883_pci_w32(rpc, 0x79, RT3883_PCI_REG_ARBCTL);  in rt3883_pci_preinit()
415 	struct rt3883_pci_controller *rpc;  in rt3883_pci_probe()  local
424 	rpc = devm_kzalloc(dev, sizeof(*rpc), GFP_KERNEL);  in rt3883_pci_probe()
425 	if (!rpc)  in rt3883_pci_probe()
429 	rpc->base = devm_ioremap_resource(dev, res);  in rt3883_pci_probe()
430 	if (IS_ERR(rpc->base))  in rt3883_pci_probe()
431 		return PTR_ERR(rpc->base);  in rt3883_pci_probe()
436 			rpc->intc_of_node = child;  in rt3883_pci_probe()
441 	if (!rpc->intc_of_node) {  in rt3883_pci_probe()
443 			of_node_full_name(rpc->intc_of_node),  in rt3883_pci_probe()
452 			rpc->pci_controller.of_node = child;  in rt3883_pci_probe()
457 	if (!rpc->pci_controller.of_node) {  in rt3883_pci_probe()
459 			of_node_full_name(rpc->intc_of_node),  in rt3883_pci_probe()
466 	for_each_available_child_of_node(rpc->pci_controller.of_node, child) {  in rt3883_pci_probe()
499 	rt3883_pci_preinit(rpc, mode);  in rt3883_pci_probe()
501 	rpc->pci_controller.pci_ops = &rt3883_pci_ops;  in rt3883_pci_probe()
502 	rpc->pci_controller.io_resource = &rpc->io_res;  in rt3883_pci_probe()
503 	rpc->pci_controller.mem_resource = &rpc->mem_res;  in rt3883_pci_probe()
506 	pci_load_of_ranges(&rpc->pci_controller,  in rt3883_pci_probe()
507 			   rpc->pci_controller.of_node);  in rt3883_pci_probe()
509 	rt3883_pci_w32(rpc, rpc->mem_res.start, RT3883_PCI_REG_MEMBASE);  in rt3883_pci_probe()
510 	rt3883_pci_w32(rpc, rpc->io_res.start, RT3883_PCI_REG_IOBASE);  in rt3883_pci_probe()
512 	ioport_resource.start = rpc->io_res.start;  in rt3883_pci_probe()
513 	ioport_resource.end = rpc->io_res.end;  in rt3883_pci_probe()
516 	rt3883_pci_w32(rpc, 0x03ff0000, RT3883_PCI_REG_BAR0SETUP(0));  in rt3883_pci_probe()
517 	rt3883_pci_w32(rpc, RT3883_MEMORY_BASE, RT3883_PCI_REG_IMBASEBAR0(0));  in rt3883_pci_probe()
518 	rt3883_pci_w32(rpc, 0x08021814, RT3883_PCI_REG_ID(0));  in rt3883_pci_probe()
519 	rt3883_pci_w32(rpc, 0x00800001, RT3883_PCI_REG_CLASS(0));  in rt3883_pci_probe()
520 	rt3883_pci_w32(rpc, 0x28801814, RT3883_PCI_REG_SUBID(0));  in rt3883_pci_probe()
523 	rt3883_pci_w32(rpc, 0x03ff0000, RT3883_PCI_REG_BAR0SETUP(1));  in rt3883_pci_probe()
524 	rt3883_pci_w32(rpc, RT3883_MEMORY_BASE, RT3883_PCI_REG_IMBASEBAR0(1));  in rt3883_pci_probe()
525 	rt3883_pci_w32(rpc, 0x08021814, RT3883_PCI_REG_ID(1));  in rt3883_pci_probe()
526 	rt3883_pci_w32(rpc, 0x06040001, RT3883_PCI_REG_CLASS(1));  in rt3883_pci_probe()
527 	rt3883_pci_w32(rpc, 0x28801814, RT3883_PCI_REG_SUBID(1));  in rt3883_pci_probe()
529 	err = rt3883_pci_irq_init(dev, rpc);  in rt3883_pci_probe()
534 	val = rt3883_pci_read_cfg32(rpc, 0, 0x01, 0, PCI_COMMAND);  in rt3883_pci_probe()
536 	rt3883_pci_write_cfg32(rpc, 0, 0x01, 0, PCI_COMMAND, val);  in rt3883_pci_probe()
539 	val = rt3883_pci_read_cfg32(rpc, 0, 0x00, 0, PCI_COMMAND);  in rt3883_pci_probe()
541 	rt3883_pci_write_cfg32(rpc, 0, 0x00, 0, PCI_COMMAND, val);  in rt3883_pci_probe()
544 		rt3883_pci_w32(rpc, 0x03ff0001, RT3883_PCI_REG_BAR0SETUP(0));  in rt3883_pci_probe()
545 		rt3883_pci_w32(rpc, 0x03ff0001, RT3883_PCI_REG_BAR0SETUP(1));  in rt3883_pci_probe()
547 		rt3883_pci_write_cfg32(rpc, 0, RT3883_P2P_BR_DEVNUM, 0,  in rt3883_pci_probe()
551 		rt3883_pci_read_cfg32(rpc, 0, RT3883_P2P_BR_DEVNUM, 0,  in rt3883_pci_probe()
554 		rt3883_pci_write_cfg32(rpc, 0, RT3883_P2P_BR_DEVNUM, 0,  in rt3883_pci_probe()
558 	register_pci_controller(&rpc->pci_controller);  in rt3883_pci_probe()
563 	of_node_put(rpc->pci_controller.of_node);  in rt3883_pci_probe()
565 	of_node_put(rpc->intc_of_node);  in rt3883_pci_probe()