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-rw-r--r--arch/sandbox/include/asm/io.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sandbox/include/asm/io.h b/arch/sandbox/include/asm/io.h
index d8c02364d9..0c022f1db5 100644
--- a/arch/sandbox/include/asm/io.h
+++ b/arch/sandbox/include/asm/io.h
@@ -20,6 +20,9 @@
* MA 02111-1307 USA
*/
+#ifndef __SANDBOX_ASM_IO_H
+#define __SANDBOX_ASM_IO_H
+
/*
* Given a physical address and a length, return a virtual address
* that can be used to access the memory range with the caching
@@ -49,3 +52,8 @@ static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
static inline void unmap_sysmem(const void *vaddr)
{
}
+
+/* Map from a pointer to our RAM buffer */
+phys_addr_t map_to_sysmem(void *ptr);
+
+#endif