board_f: Drop return value from initdram()

At present we cannot use this function as an init sequence call without a
wrapper, since it returns the RAM size. Adjust it to set the RAM size in
global_data instead, and return 0 on success.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>

board/imgtec/boston/ddr.c

@@ -10,11 +10,16 @@
 
 #include "boston-regs.h"
 
-phys_size_t initdram(void)
+DECLARE_GLOBAL_DATA_PTR;
+
+int initdram(void)
 {
 	u32 ddrconf0 = __raw_readl((uint32_t *)BOSTON_PLAT_DDRCONF0);
 
-	return (phys_size_t)(ddrconf0 & BOSTON_PLAT_DDRCONF0_SIZE) << 30;
+	gd->ram_size = (phys_size_t)(ddrconf0 & BOSTON_PLAT_DDRCONF0_SIZE) <<
+			30;
+
+	return 0;
 }
 
 ulong board_get_usable_ram_top(ulong total_size)

board/imgtec/malta/malta.c

@@ -19,6 +19,8 @@
 
 #include "superio.h"
 
+DECLARE_GLOBAL_DATA_PTR;
+
 enum core_card {
 	CORE_UNKNOWN,
 	CORE_LV,
@@ -83,9 +85,11 @@ static enum sys_con malta_sys_con(void)
 	}
 }
 
-phys_size_t initdram(void)
+int initdram(void)
 {
-	return CONFIG_SYS_MEM_SIZE;
+	gd->ram_size = CONFIG_SYS_MEM_SIZE;
+
+	return 0;
 }
 
 int checkboard(void)

board/imgtec/xilfpga/xilfpga.c

@@ -11,10 +11,14 @@
 
 #include <common.h>
 
+DECLARE_GLOBAL_DATA_PTR;
+
 /* initialize the DDR Controller and PHY */
-phys_size_t initdram(void)
+int initdram(void)
 {
 	/* MIG IP block is smart and doesn't need SW
 	 * to do any init */
-	return CONFIG_SYS_SDRAM_SIZE;	/* in bytes */
+	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;	/* in bytes */
+
+	return 0;
 }