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-rw-r--r--arch/arm/include/asm/io.h6
-rw-r--r--arch/arm/mm/ioremap.c9
2 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 8aa4cca7450..3d23418cbdd 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -179,6 +179,12 @@ static inline void __iomem *__typesafe_io(unsigned long addr)
/* PCI fixed i/o mapping */
#define PCI_IO_VIRT_BASE 0xfee00000
+#if defined(CONFIG_PCI)
+void pci_ioremap_set_mem_type(int mem_type);
+#else
+static inline void pci_ioremap_set_mem_type(int mem_type) {}
+#endif
+
extern int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr);
/*
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index f9c32ba7354..d1e5ad7ab3b 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -438,6 +438,13 @@ void __arm_iounmap(volatile void __iomem *io_addr)
EXPORT_SYMBOL(__arm_iounmap);
#ifdef CONFIG_PCI
+static int pci_ioremap_mem_type = MT_DEVICE;
+
+void pci_ioremap_set_mem_type(int mem_type)
+{
+ pci_ioremap_mem_type = mem_type;
+}
+
int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr)
{
BUG_ON(offset + SZ_64K > IO_SPACE_LIMIT);
@@ -445,7 +452,7 @@ int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr)
return ioremap_page_range(PCI_IO_VIRT_BASE + offset,
PCI_IO_VIRT_BASE + offset + SZ_64K,
phys_addr,
- __pgprot(get_mem_type(MT_DEVICE)->prot_pte));
+ __pgprot(get_mem_type(pci_ioremap_mem_type)->prot_pte));
}
EXPORT_SYMBOL_GPL(pci_ioremap_io);
#endif