at91: fix map_io init usage

switch early init to init_early and introduce soc map_io

with this Patch we will not do any more early device setup during the map io

tks to Russell to point the new call back

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Andrew Victor <linux@maxim.org.za>

arch/arm/mach-at91/board-csb637.c

@@ -40,7 +40,7 @@
 #include "generic.h"
 
 
-static void __init csb637_map_io(void)
+static void __init csb637_init_early(void)
 {
 	/* Initialize processor: 3.6864 MHz crystal */
 	at91rm9200_initialize(3686400, AT91RM9200_BGA);
@@ -140,7 +140,8 @@ MACHINE_START(CSB637, "Cogent CSB637")
 	/* Maintainer: Bill Gatliff */
 	.boot_params	= AT91_SDRAM_BASE + 0x100,
 	.timer		= &at91rm9200_timer,
-	.map_io		= csb637_map_io,
+	.map_io		= at91rm9200_map_io,
+	.init_early	= csb637_init_early,
 	.init_irq	= csb637_init_irq,
 	.init_machine	= csb637_board_init,
 MACHINE_END