at91: factorize sram init

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
index 8fabf91..bfc6844 100644
--- a/arch/arm/mach-at91/at91cap9.c
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -29,15 +29,6 @@
 #include "generic.h"
 #include "clock.h"
 
-static struct map_desc at91cap9_sram_desc[] __initdata = {
-	{
-		.virtual	= AT91_IO_VIRT_BASE - AT91CAP9_SRAM_SIZE,
-		.pfn		= __phys_to_pfn(AT91CAP9_SRAM_BASE),
-		.length		= AT91CAP9_SRAM_SIZE,
-		.type		= MT_DEVICE,
-	},
-};
-
 /* --------------------------------------------------------------------
  *  Clocks
  * -------------------------------------------------------------------- */
@@ -337,7 +328,7 @@
 
 static void __init at91cap9_map_io(void)
 {
-	iotable_init(at91cap9_sram_desc, ARRAY_SIZE(at91cap9_sram_desc));
+	at91_init_sram(0, AT91CAP9_SRAM_BASE, AT91CAP9_SRAM_SIZE);
 }
 
 static void __init at91cap9_initialize(void)