Use a const pointer for map_to_sysmem()

This function does not actually change the pointer contents, so use const
so that functions which have a const pointer do not need to cast.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c
index 38019e0..3f4005b 100644 (file)
--- a/arch/sandbox/cpu/cpu.c
+++ b/arch/sandbox/cpu/cpu.c
@@ -58,7 +58,7 @@ void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
        return (void *)(gd->arch.ram_buf + paddr);
 }
 
-phys_addr_t map_to_sysmem(void *ptr)
+phys_addr_t map_to_sysmem(const void *ptr)
 {
        return (u8 *)ptr - gd->arch.ram_buf;
 }