1 files changed, 9 insertions, 2 deletions

diff --git a/arch/sh/mm/ioremap_fixed.c b/arch/sh/mm/ioremap_fixed.c
index 0b78b1e20ef1..7f682e5dafcf 100644
--- a/arch/sh/mm/ioremap_fixed.c
+++ b/arch/sh/mm/ioremap_fixed.c
@@ -45,14 +45,21 @@ void __init ioremap_fixed_init(void)
 }
 
 void __init __iomem *
-ioremap_fixed(resource_size_t phys_addr, unsigned long offset,
-              unsigned long size, pgprot_t prot)
+ioremap_fixed(phys_addr_t phys_addr, unsigned long size, pgprot_t prot)
 {
         enum fixed_addresses idx0, idx;
         struct ioremap_map *map;
         unsigned int nrpages;
+        unsigned long offset;
         int i, slot;
 
+        /*
+         * Mappings have to be page-aligned
+         */
+        offset = phys_addr & ~PAGE_MASK;
+        phys_addr &= PAGE_MASK;
+        size = PAGE_ALIGN(phys_addr + size) - phys_addr;
+
         slot = -1;
         for (i = 0; i < FIX_N_IOREMAPS; i++) {
                 map = &ioremap_maps[i];