Add support for Wandboard Quad

Add support for the Quad version of Wandboard; fix compile warning resulting
from having 2G of memory.
Signed-off-by: NTapani Utriainen <tapani@technexion.com>
Signed-off-by: NOtavio Salvador <otavio@ossystems.com.br>
Acked-by: NStefano Babic <sbabic@denx.de>

board/wandboard/README

@@ -22,6 +22,11 @@ To build U-Boot for the Wandboard Solo version:
 $ make wandboard_solo_config
 $ make
 
+To build U-Boot for the Wandboard Quad version:
+
+$ make wandboard_quad_config
+$ make
+
 Flashing U-boot into the SD card
 --------------------------------
 

board/wandboard/wandboard.c

@@ -48,7 +48,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 int dram_init(void)
 {
-	gd->ram_size = CONFIG_DDR_MB * SZ_1M;
+	gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024;
 
 	return 0;
 }

boards.cfg

@@ -272,6 +272,7 @@ nitrogen6q2g                 arm         armv7       nitrogen6x          boundar
 nitrogen6s                   arm         armv7       nitrogen6x          boundary       mx6		nitrogen6x:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6s.cfg,MX6S,DDR_MB=512
 nitrogen6s1g                 arm         armv7       nitrogen6x          boundary       mx6		nitrogen6x:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6s1g.cfg,MX6S,DDR_MB=1024
 wandboard_dl		     arm	 armv7	     wandboard		 -		mx6 wandboard:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6dl.cfg,MX6DL,DDR_MB=1024
+wandboard_quad		     arm	 armv7	     wandboard		 -		mx6 wandboard:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q2g.cfg,MX6Q,DDR_MB=2048
 wandboard_solo		     arm	 armv7	     wandboard		 -		mx6 wandboard:IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6s.cfg,MX6S,DDR_MB=512
 omap3_overo                  arm         armv7       overo               -              omap3
 omap3_pandora                arm         armv7       pandora             -              omap3

include/configs/wandboard.h

@@ -103,6 +103,8 @@
 
 #if defined(CONFIG_MX6DL)
 #define CONFIG_DEFAULT_FDT_FILE		"imx6dl-wandboard.dtb"
+#elif defined(CONFIG_MX6Q)
+#define CONFIG_DEFAULT_FDT_FILE		"imx6q-wandboard.dtb"
 #elif defined(CONFIG_MX6S)
 #define CONFIG_DEFAULT_FDT_FILE		"imx6s-wandboard.dtb"
 #endif