1 #include <linux/string.h>
18 	unsigned long ret = res->start + offset;  in of_ioremap()
21 	if (res->flags & IORESOURCE_MEM)  in of_ioremap()
34 	if (res->flags & IORESOURCE_MEM)  in of_iounmap()
47 	if (!strcmp(np->name, "pci")) {  in of_bus_pci_match()
54 		 * PCI bridge lacks a ranges property.  We  in of_bus_pci_match()
56 		 * parent as-is, not with the PCI translate  in of_bus_pci_match()
75 	/* Treat PCI busses lacking ranges property just like  in of_bus_simba_match()
78 	if (!strcmp(np->name, "pci")) {  in of_bus_simba_match()
111 	/* Special exception, we can map a 64-bit address into  in of_bus_pci_map()
112 	 * a 32-bit range.  in of_bus_pci_map()
118 	return -EINVAL;  in of_bus_pci_map()
122 			    na - 1, ns))  in of_bus_pci_map()
123 		return -EINVAL;  in of_bus_pci_map()
129 	for (i = 0; i < na - 1; i++)  in of_bus_pci_map()
130 		result[pna - 1 - i] +=  in of_bus_pci_map()
131 			(addr[na - 1 - i] -  in of_bus_pci_map()
132 			 range[na - 1 - i]);  in of_bus_pci_map()
163  * This is just needed to hard-code the address and size cell
164  * counts.  'fhc' and 'central' nodes lack the #address-cells and
165  * #size-cells properties, and if you walk to the root on such
166  * Enterprise boxes all you'll get is a #size-cells of 2 which is
171 	return !strcmp(np->name, "fhc") ||  in of_bus_fhc_match()
172 		!strcmp(np->name, "central");  in of_bus_fhc_match()
178  * Array of bus specific translators
185 		.addr_prop_name = "assigned-addresses",
194 		.addr_prop_name = "assigned-addresses",
256 			result[pna - 1 - i] =  in build_one_resource()
257 				addr[na - 1 - i];  in build_one_resource()
266 	for (; rlen >= rone; rlen -= rone, ranges += rone) {  in build_one_resource()
267 		if (!bus->map(addr, ranges, na, ns, pna))  in build_one_resource()
274 	if (!strcmp(bus->name, "pci") &&  in build_one_resource()
283 	/* If we have a ranges property in the parent, use it.  */  in use_1to1_mapping()
292 	 * real bus nodes, and don't have a 'ranges' property.  in use_1to1_mapping()
296 	if (!strcmp(pp->name, "dma") ||  in use_1to1_mapping()
297 	    !strcmp(pp->name, "espdma") ||  in use_1to1_mapping()
298 	    !strcmp(pp->name, "ledma") ||  in use_1to1_mapping()
299 	    !strcmp(pp->name, "lebuffer"))  in use_1to1_mapping()
303 	 * it lacks a ranges property, and this will include  in use_1to1_mapping()
306 	if (!strcmp(pp->name, "pci"))  in use_1to1_mapping()
327 	bus = of_match_bus(p_op->dev.of_node);  in build_device_resources()
328 	bus->count_cells(op->dev.of_node, &na, &ns);  in build_device_resources()
330 	preg = of_get_property(op->dev.of_node, bus->addr_prop_name, &num_reg);  in build_device_resources()
334 	/* Convert to num-cells.  */  in build_device_resources()
337 	/* Convert to num-entries.  */  in build_device_resources()
340 	/* Prevent overrunning the op->resources[] array.  */  in build_device_resources()
344 		       op->dev.of_node->full_name, num_reg, PROMREG_MAX);  in build_device_resources()
348 	op->resource = op->archdata.resource;  in build_device_resources()
349 	op->num_resources = num_reg;  in build_device_resources()
351 		struct resource *r = &op->resource[index];  in build_device_resources()
354 		struct device_node *dp = op->dev.of_node;  in build_device_resources()
355 		struct device_node *pp = p_op->dev.of_node;  in build_device_resources()
365 		flags = bus->get_flags(addr, 0);  in build_device_resources()
378 			pp = dp->parent;  in build_device_resources()
385 			pbus->count_cells(dp, &pna, &pns);  in build_device_resources()
391 			flags = pbus->get_flags(addr, flags);  in build_device_resources()
402 			printk("%s reg[%d] -> %llx\n",  in build_device_resources()
403 			       op->dev.of_node->full_name, index,  in build_device_resources()
410 			r->start = result;  in build_device_resources()
411 			r->end = result + size - 1;  in build_device_resources()
412 			r->flags = flags;  in build_device_resources()
414 		r->name = op->dev.of_node->name;  in build_device_resources()
431 	bus->count_cells(dp, &na, NULL);  in apply_interrupt_map()
456 		/* Psycho and Sabre PCI controllers can have 'interrupt-map'  in apply_interrupt_map()
457 		 * properties that do not include the on-board device  in apply_interrupt_map()
458 		 * interrupts.  Instead, the device's 'interrupts' property  in apply_interrupt_map()
462 		 * match in the parent's 'interrupt-map', and the  in apply_interrupt_map()
466 		if (pp->irq_trans)  in apply_interrupt_map()
492 	bus = (regs->phys_hi >> 16) & 0xff;  in pci_irq_swizzle()
493 	devfn = (regs->phys_hi >> 8) & 0xff;  in pci_irq_swizzle()
496 	if (pp->irq_trans) {  in pci_irq_swizzle()
497 		/* Derived from Table 8-3, U2P User's Manual.  This branch  in pci_irq_swizzle()
499 		 * interrupt-map and interrupt-map-mask properties.  The  in pci_irq_swizzle()
500 		 * Ultra-E450 is one example.  in pci_irq_swizzle()
504 		 * D: 2-bit slot number, derived from PCI device number as  in pci_irq_swizzle()
505 		 *    (dev - 1) for bus A, or (dev - 2) for bus B  in pci_irq_swizzle()
506 		 * L: 2-bit line number  in pci_irq_swizzle()
509 			/* PBM-A */  in pci_irq_swizzle()
511 			slot = (slot - 1) << 2;  in pci_irq_swizzle()
513 			/* PBM-B */  in pci_irq_swizzle()
515 			slot = (slot - 2) << 2;  in pci_irq_swizzle()
517 		irq -= 1;  in pci_irq_swizzle()
521 		/* Going through a PCI-PCI bridge that lacks a set of  in pci_irq_swizzle()
522 		 * interrupt-map and interrupt-map-mask properties.  in pci_irq_swizzle()
524 		ret = ((irq - 1 + (slot & 3)) & 3) + 1;  in pci_irq_swizzle()
536 	struct device_node *dp = op->dev.of_node;  in build_one_device_irq()
544 	if (dp->irq_trans) {  in build_one_device_irq()
545 		irq = dp->irq_trans->irq_build(dp, irq,  in build_one_device_irq()
546 					       dp->irq_trans->data);  in build_one_device_irq()
549 			printk("%s: direct translate %x --> %x\n",  in build_one_device_irq()
550 			       dp->full_name, orig_irq, irq);  in build_one_device_irq()
556 	 * interrupt-map or bus specific translations, until we hit  in build_one_device_irq()
563 	pp = dp->parent;  in build_one_device_irq()
569 		imap = of_get_property(pp, "interrupt-map", &imlen);  in build_one_device_irq()
570 		imsk = of_get_property(pp, "interrupt-map-mask", NULL);  in build_one_device_irq()
580 				printk("%s: Apply [%s:%x] imap --> [%s:%x]\n",  in build_one_device_irq()
581 				       op->dev.of_node->full_name,  in build_one_device_irq()
582 				       pp->full_name, this_orig_irq,  in build_one_device_irq()
583 				       (iret ? iret->full_name : "NULL"), irq);  in build_one_device_irq()
588 			if (iret->irq_trans) {  in build_one_device_irq()
593 			if (!strcmp(pp->name, "pci")) {  in build_one_device_irq()
599 					       "%x --> %x\n",  in build_one_device_irq()
600 					       op->dev.of_node->full_name,  in build_one_device_irq()
601 					       pp->full_name, this_orig_irq,  in build_one_device_irq()
606 			if (pp->irq_trans) {  in build_one_device_irq()
612 		pp = pp->parent;  in build_one_device_irq()
617 	irq = ip->irq_trans->irq_build(op->dev.of_node, irq,  in build_one_device_irq()
618 				       ip->irq_trans->data);  in build_one_device_irq()
620 		printk("%s: Apply IRQ trans [%s] %x --> %x\n",  in build_one_device_irq()
621 		      op->dev.of_node->full_name, ip->full_name, orig_irq, irq);  in build_one_device_irq()
625 	if (nid != -1) {  in build_one_device_irq()
646 	sd = &op->dev.archdata;  in scan_one_device()
647 	sd->op = op;  in scan_one_device()
649 	op->dev.of_node = dp;  in scan_one_device()
653 		op->archdata.num_irqs = len / 4;  in scan_one_device()
655 		/* Prevent overrunning the op->irqs[] array.  */  in scan_one_device()
656 		if (op->archdata.num_irqs > PROMINTR_MAX) {  in scan_one_device()
659 			       dp->full_name, op->archdata.num_irqs, PROMINTR_MAX);  in scan_one_device()
660 			op->archdata.num_irqs = PROMINTR_MAX;  in scan_one_device()
662 		memcpy(op->archdata.irqs, irq, op->archdata.num_irqs * 4);  in scan_one_device()
664 		op->archdata.num_irqs = 0;  in scan_one_device()
668 	for (i = 0; i < op->archdata.num_irqs; i++)  in scan_one_device()
669 		op->archdata.irqs[i] = build_one_device_irq(op, parent, op->archdata.irqs[i]);  in scan_one_device()
671 	op->dev.parent = parent;  in scan_one_device()
672 	op->dev.bus = &platform_bus_type;  in scan_one_device()
674 		dev_set_name(&op->dev, "root");  in scan_one_device()
676 		dev_set_name(&op->dev, "%08x", dp->phandle);  in scan_one_device()
680 		       dp->full_name);  in scan_one_device()
694 			scan_tree(dp->child, &op->dev);  in scan_tree()
696 		dp = dp->sibling;  in scan_tree()
709 	scan_tree(root->child, &parent->dev);  in scan_of_devices()