diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/of/address.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index 8eea3f6e29a4..813936d419ad 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -49,6 +49,7 @@ struct of_bus { u64 (*map)(__be32 *addr, const __be32 *range, int na, int ns, int pna); int (*translate)(__be32 *addr, u64 offset, int na); + bool has_flags; unsigned int (*get_flags)(const __be32 *addr); }; @@ -364,6 +365,7 @@ static struct of_bus of_busses[] = { .count_cells = of_bus_pci_count_cells, .map = of_bus_pci_map, .translate = of_bus_pci_translate, + .has_flags = true, .get_flags = of_bus_pci_get_flags, }, #endif /* CONFIG_PCI */ @@ -375,6 +377,7 @@ static struct of_bus of_busses[] = { .count_cells = of_bus_isa_count_cells, .map = of_bus_isa_map, .translate = of_bus_isa_translate, + .has_flags = true, .get_flags = of_bus_isa_get_flags, }, /* Default */ @@ -698,9 +701,10 @@ static int parser_init(struct of_pci_range_parser *parser, parser->node = node; parser->pna = of_n_addr_cells(node); - parser->na = of_bus_n_addr_cells(node); - parser->ns = of_bus_n_size_cells(node); parser->dma = !strcmp(name, "dma-ranges"); + parser->bus = of_match_bus(node); + + parser->bus->count_cells(parser->node, &parser->na, &parser->ns); parser->range = of_get_property(node, name, &rlen); if (parser->range == NULL) @@ -732,6 +736,7 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, int na = parser->na; int ns = parser->ns; int np = parser->pna + na + ns; + int busflag_na = 0; if (!range) return NULL; @@ -739,12 +744,13 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, if (!parser->range || parser->range + np > parser->end) return NULL; - if (parser->na == 3) - range->flags = of_bus_pci_get_flags(parser->range); - else - range->flags = 0; + range->flags = parser->bus->get_flags(parser->range); + + /* A extra cell for resource flags */ + if (parser->bus->has_flags) + busflag_na = 1; - range->pci_addr = of_read_number(parser->range, na); + range->bus_addr = of_read_number(parser->range + busflag_na, na - busflag_na); if (parser->dma) range->cpu_addr = of_translate_dma_address(parser->node, @@ -759,11 +765,10 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, /* Now consume following elements while they are contiguous */ while (parser->range + np <= parser->end) { u32 flags = 0; - u64 pci_addr, cpu_addr, size; + u64 bus_addr, cpu_addr, size; - if (parser->na == 3) - flags = of_bus_pci_get_flags(parser->range); - pci_addr = of_read_number(parser->range, na); + flags = parser->bus->get_flags(parser->range); + bus_addr = of_read_number(parser->range + busflag_na, na - busflag_na); if (parser->dma) cpu_addr = of_translate_dma_address(parser->node, parser->range + na); @@ -774,7 +779,7 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser, if (flags != range->flags) break; - if (pci_addr != range->pci_addr + range->size || + if (bus_addr != range->bus_addr + range->size || cpu_addr != range->cpu_addr + range->size) break; |