201 static inline u32 ar2315_pci_reg_read(struct ar2315_pci_ctrl *apc, u32 reg)  in ar2315_pci_reg_read()  argument
203 	return __raw_readl(apc->mmr_mem + reg);  in ar2315_pci_reg_read()
206 static inline void ar2315_pci_reg_write(struct ar2315_pci_ctrl *apc, u32 reg,  in ar2315_pci_reg_write()  argument
209 	__raw_writel(val, apc->mmr_mem + reg);  in ar2315_pci_reg_write()
212 static inline void ar2315_pci_reg_mask(struct ar2315_pci_ctrl *apc, u32 reg,  in ar2315_pci_reg_mask()  argument
215 	u32 ret = ar2315_pci_reg_read(apc, reg);  in ar2315_pci_reg_mask()
219 	ar2315_pci_reg_write(apc, reg, ret);  in ar2315_pci_reg_mask()
222 static int ar2315_pci_cfg_access(struct ar2315_pci_ctrl *apc, unsigned devfn,  in ar2315_pci_cfg_access()  argument
237 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, AR2315_PCI_INT_ABORT);  in ar2315_pci_cfg_access()
239 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG, 0,  in ar2315_pci_cfg_access()
244 	value = __raw_readl(apc->cfg_mem + addr);  in ar2315_pci_cfg_access()
246 	isr = ar2315_pci_reg_read(apc, AR2315_PCI_ISR);  in ar2315_pci_cfg_access()
253 		__raw_writel(value, apc->cfg_mem + addr);  in ar2315_pci_cfg_access()
254 		isr = ar2315_pci_reg_read(apc, AR2315_PCI_ISR);  in ar2315_pci_cfg_access()
264 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, AR2315_PCI_INT_ABORT);  in ar2315_pci_cfg_access()
270 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL,  in ar2315_pci_cfg_access()
277 static inline int ar2315_pci_local_cfg_rd(struct ar2315_pci_ctrl *apc,  in ar2315_pci_local_cfg_rd()  argument
280 	return ar2315_pci_cfg_access(apc, devfn, where, sizeof(u32), val,  in ar2315_pci_local_cfg_rd()
284 static inline int ar2315_pci_local_cfg_wr(struct ar2315_pci_ctrl *apc,  in ar2315_pci_local_cfg_wr()  argument
287 	return ar2315_pci_cfg_access(apc, devfn, where, sizeof(u32), &val,  in ar2315_pci_local_cfg_wr()
294 	struct ar2315_pci_ctrl *apc = ar2315_pci_bus_to_apc(bus);  in ar2315_pci_cfg_read()  local
299 	return ar2315_pci_cfg_access(apc, devfn, where, size, value, false);  in ar2315_pci_cfg_read()
305 	struct ar2315_pci_ctrl *apc = ar2315_pci_bus_to_apc(bus);  in ar2315_pci_cfg_write()  local
310 	return ar2315_pci_cfg_access(apc, devfn, where, size, &value, true);  in ar2315_pci_cfg_write()
318 static int ar2315_pci_host_setup(struct ar2315_pci_ctrl *apc)  in ar2315_pci_host_setup()  argument
324 	res = ar2315_pci_local_cfg_rd(apc, devfn, PCI_VENDOR_ID, &id);  in ar2315_pci_host_setup()
329 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_BASE_ADDRESS_0,  in ar2315_pci_host_setup()
331 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_BASE_ADDRESS_1,  in ar2315_pci_host_setup()
333 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_BASE_ADDRESS_2,  in ar2315_pci_host_setup()
337 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_COMMAND, PCI_COMMAND_MEMORY |  in ar2315_pci_host_setup()
347 	struct ar2315_pci_ctrl *apc = irq_desc_get_handler_data(desc);  in ar2315_pci_irq_handler()  local
348 	u32 pending = ar2315_pci_reg_read(apc, AR2315_PCI_ISR) &  in ar2315_pci_irq_handler()
349 		      ar2315_pci_reg_read(apc, AR2315_PCI_IMR);  in ar2315_pci_irq_handler()
353 		pci_irq = irq_find_mapping(apc->domain, __ffs(pending));  in ar2315_pci_irq_handler()
363 	struct ar2315_pci_ctrl *apc = irq_data_get_irq_chip_data(d);  in ar2315_pci_irq_mask()  local
365 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, BIT(d->hwirq), 0);  in ar2315_pci_irq_mask()
370 	struct ar2315_pci_ctrl *apc = irq_data_get_irq_chip_data(d);  in ar2315_pci_irq_mask_ack()  local
373 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, m, 0);  in ar2315_pci_irq_mask_ack()
374 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, m);  in ar2315_pci_irq_mask_ack()
379 	struct ar2315_pci_ctrl *apc = irq_data_get_irq_chip_data(d);  in ar2315_pci_irq_unmask()  local
381 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, 0, BIT(d->hwirq));  in ar2315_pci_irq_unmask()
403 static void ar2315_pci_irq_init(struct ar2315_pci_ctrl *apc)  in ar2315_pci_irq_init()  argument
405 	ar2315_pci_reg_mask(apc, AR2315_PCI_IER, AR2315_PCI_IER_ENABLE, 0);  in ar2315_pci_irq_init()
406 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, (AR2315_PCI_INT_ABORT |  in ar2315_pci_irq_init()
409 	apc->irq_ext = irq_create_mapping(apc->domain, AR2315_PCI_IRQ_EXT);  in ar2315_pci_irq_init()
411 	irq_set_chained_handler_and_data(apc->irq, ar2315_pci_irq_handler,  in ar2315_pci_irq_init()
412 					 apc);  in ar2315_pci_irq_init()
416 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, AR2315_PCI_INT_ABORT |  in ar2315_pci_irq_init()
418 	ar2315_pci_reg_mask(apc, AR2315_PCI_IER, 0, AR2315_PCI_IER_ENABLE);  in ar2315_pci_irq_init()
423 	struct ar2315_pci_ctrl *apc;  in ar2315_pci_probe()  local
428 	apc = devm_kzalloc(dev, sizeof(*apc), GFP_KERNEL);  in ar2315_pci_probe()
429 	if (!apc)  in ar2315_pci_probe()
435 	apc->irq = irq;  in ar2315_pci_probe()
439 	apc->mmr_mem = devm_ioremap_resource(dev, res);  in ar2315_pci_probe()
440 	if (IS_ERR(apc->mmr_mem))  in ar2315_pci_probe()
441 		return PTR_ERR(apc->mmr_mem);  in ar2315_pci_probe()
448 	apc->mem_res.name = "AR2315 PCI mem space";  in ar2315_pci_probe()
449 	apc->mem_res.parent = res;  in ar2315_pci_probe()
450 	apc->mem_res.start = res->start;  in ar2315_pci_probe()
451 	apc->mem_res.end = res->end;  in ar2315_pci_probe()
452 	apc->mem_res.flags = IORESOURCE_MEM;  in ar2315_pci_probe()
455 	apc->cfg_mem = devm_ioremap_nocache(dev, res->start,  in ar2315_pci_probe()
457 	if (!apc->cfg_mem) {  in ar2315_pci_probe()
463 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG,  in ar2315_pci_probe()
469 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG,  in ar2315_pci_probe()
473 	ar2315_pci_reg_write(apc, AR2315_PCI_UNCACHE_CFG,  in ar2315_pci_probe()
477 	ar2315_pci_reg_read(apc, AR2315_PCI_UNCACHE_CFG);  in ar2315_pci_probe()
481 	err = ar2315_pci_host_setup(apc);  in ar2315_pci_probe()
485 	apc->domain = irq_domain_add_linear(NULL, AR2315_PCI_IRQ_COUNT,  in ar2315_pci_probe()
486 					    &ar2315_pci_irq_domain_ops, apc);  in ar2315_pci_probe()
487 	if (!apc->domain) {  in ar2315_pci_probe()
492 	ar2315_pci_irq_init(apc);  in ar2315_pci_probe()
495 	apc->io_res.name = "AR2315 IO space";  in ar2315_pci_probe()
496 	apc->io_res.start = 0;  in ar2315_pci_probe()
497 	apc->io_res.end = 0;  in ar2315_pci_probe()
498 	apc->io_res.flags = IORESOURCE_IO,  in ar2315_pci_probe()
500 	apc->pci_ctrl.pci_ops = &ar2315_pci_ops;  in ar2315_pci_probe()
501 	apc->pci_ctrl.mem_resource = &apc->mem_res,  in ar2315_pci_probe()
502 	apc->pci_ctrl.io_resource = &apc->io_res,  in ar2315_pci_probe()
504 	register_pci_controller(&apc->pci_ctrl);  in ar2315_pci_probe()
526 	struct ar2315_pci_ctrl *apc = ar2315_pci_bus_to_apc(dev->bus);  in pcibios_map_irq()  local
528 	return slot ? 0 : apc->irq_ext;  in pcibios_map_irq()