diff options
| -rw-r--r-- | arch/arm/include/asm/io.h | 5 | ||||
| -rw-r--r-- | arch/arm/mm/ioremap.c | 15 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index c576fa7d9bf8..12eca75bdee9 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -182,6 +182,11 @@ static inline void pci_ioremap_set_mem_type(int mem_type) {} extern int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr); +struct resource; + +#define pci_remap_iospace pci_remap_iospace +int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr); + /* * PCI configuration space mapping function. * diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 6e830b9418c9..fa3bde48d6a7 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -459,6 +459,21 @@ void pci_ioremap_set_mem_type(int mem_type) pci_ioremap_mem_type = mem_type; } +int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr) +{ + unsigned long vaddr = (unsigned long)PCI_IOBASE + res->start; + + if (!(res->flags & IORESOURCE_IO)) + return -EINVAL; + + if (res->end > IO_SPACE_LIMIT) + return -EINVAL; + + return ioremap_page_range(vaddr, vaddr + resource_size(res), phys_addr, + __pgprot(get_mem_type(pci_ioremap_mem_type)->prot_pte)); +} +EXPORT_SYMBOL(pci_remap_iospace); + int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr) { BUG_ON(offset + SZ_64K - 1 > IO_SPACE_LIMIT); |