powerpc/kernel/isa-bridge.c

20 #include <linux/string.h>
29 #include <asm/pci-bridge.h>
31 #include <asm/ppc-pci.h>
77 	 * The ranges property is laid out as an array of elements,  in pci_process_ISA_OF_ranges()
79 	 *   cells 0 - 1:	an ISA address  in pci_process_ISA_OF_ranges()
80 	 *   cells 2 - 4:	a PCI address  in pci_process_ISA_OF_ranges()
81 	 *			(size depending on dev->n_addr_cells)  in pci_process_ISA_OF_ranges()
84 	if ((range->isa_addr.a_hi & ISA_SPACE_MASK) != ISA_SPACE_IO) {  in pci_process_ISA_OF_ranges()
86 		rlen -= sizeof(struct isa_range);  in pci_process_ISA_OF_ranges()
90 	if ((range->isa_addr.a_hi & ISA_SPACE_MASK) != ISA_SPACE_IO)  in pci_process_ISA_OF_ranges()
93 	isa_addr = range->isa_addr.a_lo;  in pci_process_ISA_OF_ranges()
94 	pci_addr = (unsigned long) range->pci_addr.a_mid << 32 |  in pci_process_ISA_OF_ranges()
95 		range->pci_addr.a_lo;  in pci_process_ISA_OF_ranges()
108 	size = PAGE_ALIGN(range->size);  in pci_process_ISA_OF_ranges()
125  * isa_bridge_find_early - Find and map the ISA IO space early before
146 			if (parent == hose->dn) {  in isa_bridge_find_early()
161 	/* Now parse the "ranges" property and setup the ISA mapping */  in isa_bridge_find_early()
162 	pci_process_ISA_OF_ranges(np, hose->io_base_phys);  in isa_bridge_find_early()
167 	pr_debug("ISA bridge (early) is %s\n", np->full_name);  in isa_bridge_find_early()
171  * isa_bridge_find_late - Find and map the ISA IO space upon discovery of
177 	struct pci_controller *hose = pci_bus_to_host(pdev->bus);  in isa_bridge_find_late()
183 	/* Now parse the "ranges" property and setup the ISA mapping */  in isa_bridge_find_late()
184 	pci_process_ISA_OF_ranges(devnode, hose->io_base_phys);  in isa_bridge_find_late()
190 		 devnode->full_name, pci_name(pdev));  in isa_bridge_find_late()
194  * isa_bridge_remove - Remove/unmap an ISA bridge
217  * isa_bridge_notify - Get notified of PCI devices addition/removal
239 		if (!isa_bridge_devnode && devnode && devnode->type &&  in isa_bridge_notify()
240 		    !strcmp(devnode->type, "isa"))  in isa_bridge_notify()
259  * isa_bridge_init - register to be notified of ISA bridge addition/removal