190 static inline u32 ar2315_pci_reg_read(struct ar2315_pci_ctrl *apc, u32 reg)  in ar2315_pci_reg_read()  argument
192 	return __raw_readl(apc->mmr_mem + reg);  in ar2315_pci_reg_read()
195 static inline void ar2315_pci_reg_write(struct ar2315_pci_ctrl *apc, u32 reg,  in ar2315_pci_reg_write()  argument
198 	__raw_writel(val, apc->mmr_mem + reg);  in ar2315_pci_reg_write()
201 static inline void ar2315_pci_reg_mask(struct ar2315_pci_ctrl *apc, u32 reg,  in ar2315_pci_reg_mask()  argument
204 	u32 ret = ar2315_pci_reg_read(apc, reg);  in ar2315_pci_reg_mask()
208 	ar2315_pci_reg_write(apc, reg, ret);  in ar2315_pci_reg_mask()
211 static int ar2315_pci_cfg_access(struct ar2315_pci_ctrl *apc, unsigned devfn,  in ar2315_pci_cfg_access()  argument
226 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, AR2315_PCI_INT_ABORT);  in ar2315_pci_cfg_access()
228 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG, 0,  in ar2315_pci_cfg_access()
233 	value = __raw_readl(apc->cfg_mem + addr);  in ar2315_pci_cfg_access()
235 	isr = ar2315_pci_reg_read(apc, AR2315_PCI_ISR);  in ar2315_pci_cfg_access()
242 		__raw_writel(value, apc->cfg_mem + addr);  in ar2315_pci_cfg_access()
243 		isr = ar2315_pci_reg_read(apc, AR2315_PCI_ISR);  in ar2315_pci_cfg_access()
253 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, AR2315_PCI_INT_ABORT);  in ar2315_pci_cfg_access()
259 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL,  in ar2315_pci_cfg_access()
266 static inline int ar2315_pci_local_cfg_rd(struct ar2315_pci_ctrl *apc,  in ar2315_pci_local_cfg_rd()  argument
269 	return ar2315_pci_cfg_access(apc, devfn, where, sizeof(u32), val,  in ar2315_pci_local_cfg_rd()
273 static inline int ar2315_pci_local_cfg_wr(struct ar2315_pci_ctrl *apc,  in ar2315_pci_local_cfg_wr()  argument
276 	return ar2315_pci_cfg_access(apc, devfn, where, sizeof(u32), &val,  in ar2315_pci_local_cfg_wr()
283 	struct ar2315_pci_ctrl *apc = ar2315_pci_bus_to_apc(bus);  in ar2315_pci_cfg_read()  local
288 	return ar2315_pci_cfg_access(apc, devfn, where, size, value, false);  in ar2315_pci_cfg_read()
294 	struct ar2315_pci_ctrl *apc = ar2315_pci_bus_to_apc(bus);  in ar2315_pci_cfg_write()  local
299 	return ar2315_pci_cfg_access(apc, devfn, where, size, &value, true);  in ar2315_pci_cfg_write()
307 static int ar2315_pci_host_setup(struct ar2315_pci_ctrl *apc)  in ar2315_pci_host_setup()  argument
313 	res = ar2315_pci_local_cfg_rd(apc, devfn, PCI_VENDOR_ID, &id);  in ar2315_pci_host_setup()
318 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_BASE_ADDRESS_0,  in ar2315_pci_host_setup()
320 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_BASE_ADDRESS_1,  in ar2315_pci_host_setup()
322 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_BASE_ADDRESS_2,  in ar2315_pci_host_setup()
326 	ar2315_pci_local_cfg_wr(apc, devfn, PCI_COMMAND, PCI_COMMAND_MEMORY |  in ar2315_pci_host_setup()
336 	struct ar2315_pci_ctrl *apc = irq_desc_get_handler_data(desc);  in ar2315_pci_irq_handler()  local
337 	u32 pending = ar2315_pci_reg_read(apc, AR2315_PCI_ISR) &  in ar2315_pci_irq_handler()
338 		      ar2315_pci_reg_read(apc, AR2315_PCI_IMR);  in ar2315_pci_irq_handler()
342 		pci_irq = irq_find_mapping(apc->domain, __ffs(pending));  in ar2315_pci_irq_handler()
352 	struct ar2315_pci_ctrl *apc = irq_data_get_irq_chip_data(d);  in ar2315_pci_irq_mask()  local
354 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, BIT(d->hwirq), 0);  in ar2315_pci_irq_mask()
359 	struct ar2315_pci_ctrl *apc = irq_data_get_irq_chip_data(d);  in ar2315_pci_irq_mask_ack()  local
362 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, m, 0);  in ar2315_pci_irq_mask_ack()
363 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, m);  in ar2315_pci_irq_mask_ack()
368 	struct ar2315_pci_ctrl *apc = irq_data_get_irq_chip_data(d);  in ar2315_pci_irq_unmask()  local
370 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, 0, BIT(d->hwirq));  in ar2315_pci_irq_unmask()
392 static void ar2315_pci_irq_init(struct ar2315_pci_ctrl *apc)  in ar2315_pci_irq_init()  argument
394 	ar2315_pci_reg_mask(apc, AR2315_PCI_IER, AR2315_PCI_IER_ENABLE, 0);  in ar2315_pci_irq_init()
395 	ar2315_pci_reg_mask(apc, AR2315_PCI_IMR, (AR2315_PCI_INT_ABORT |  in ar2315_pci_irq_init()
398 	apc->irq_ext = irq_create_mapping(apc->domain, AR2315_PCI_IRQ_EXT);  in ar2315_pci_irq_init()
400 	irq_set_chained_handler_and_data(apc->irq, ar2315_pci_irq_handler,  in ar2315_pci_irq_init()
401 					 apc);  in ar2315_pci_irq_init()
405 	ar2315_pci_reg_write(apc, AR2315_PCI_ISR, AR2315_PCI_INT_ABORT |  in ar2315_pci_irq_init()
407 	ar2315_pci_reg_mask(apc, AR2315_PCI_IER, 0, AR2315_PCI_IER_ENABLE);  in ar2315_pci_irq_init()
412 	struct ar2315_pci_ctrl *apc;  in ar2315_pci_probe()  local
417 	apc = devm_kzalloc(dev, sizeof(*apc), GFP_KERNEL);  in ar2315_pci_probe()
418 	if (!apc)  in ar2315_pci_probe()
424 	apc->irq = irq;  in ar2315_pci_probe()
428 	apc->mmr_mem = devm_ioremap_resource(dev, res);  in ar2315_pci_probe()
429 	if (IS_ERR(apc->mmr_mem))  in ar2315_pci_probe()
430 		return PTR_ERR(apc->mmr_mem);  in ar2315_pci_probe()
437 	apc->mem_res.name = "AR2315 PCI mem space";  in ar2315_pci_probe()
438 	apc->mem_res.parent = res;  in ar2315_pci_probe()
439 	apc->mem_res.start = res->start;  in ar2315_pci_probe()
440 	apc->mem_res.end = res->end;  in ar2315_pci_probe()
441 	apc->mem_res.flags = IORESOURCE_MEM;  in ar2315_pci_probe()
444 	apc->cfg_mem = devm_ioremap_nocache(dev, res->start,  in ar2315_pci_probe()
446 	if (!apc->cfg_mem) {  in ar2315_pci_probe()
452 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG,  in ar2315_pci_probe()
458 	ar2315_pci_reg_mask(apc, AR2315_PCI_MISC_CONFIG,  in ar2315_pci_probe()
462 	ar2315_pci_reg_write(apc, AR2315_PCI_UNCACHE_CFG,  in ar2315_pci_probe()
466 	ar2315_pci_reg_read(apc, AR2315_PCI_UNCACHE_CFG);  in ar2315_pci_probe()
470 	err = ar2315_pci_host_setup(apc);  in ar2315_pci_probe()
474 	apc->domain = irq_domain_add_linear(NULL, AR2315_PCI_IRQ_COUNT,  in ar2315_pci_probe()
475 					    &ar2315_pci_irq_domain_ops, apc);  in ar2315_pci_probe()
476 	if (!apc->domain) {  in ar2315_pci_probe()
481 	ar2315_pci_irq_init(apc);  in ar2315_pci_probe()
484 	apc->io_res.name = "AR2315 IO space";  in ar2315_pci_probe()
485 	apc->io_res.start = 0;  in ar2315_pci_probe()
486 	apc->io_res.end = 0;  in ar2315_pci_probe()
487 	apc->io_res.flags = IORESOURCE_IO,  in ar2315_pci_probe()
489 	apc->pci_ctrl.pci_ops = &ar2315_pci_ops;  in ar2315_pci_probe()
490 	apc->pci_ctrl.mem_resource = &apc->mem_res,  in ar2315_pci_probe()
491 	apc->pci_ctrl.io_resource = &apc->io_res,  in ar2315_pci_probe()
493 	register_pci_controller(&apc->pci_ctrl);  in ar2315_pci_probe()
515 	struct ar2315_pci_ctrl *apc = ar2315_pci_bus_to_apc(dev->bus);  in pcibios_map_irq()  local
517 	return slot ? 0 : apc->irq_ext;  in pcibios_map_irq()