nios2: Preconfigure $loadaddr variable

Preset the $loadaddr environment variable to some sane default, let's
say half of the RAM. This variable is where the kernel is loaded using
all sorts of .*load commands, so it's convenient to have it set.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>

include/configs/10m50_devboard.h

@@ -92,7 +92,8 @@
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + \
 					 16)	/* Print buf size */
-#define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_LOAD_ADDR		0xcc000000	/* Half of RAM */
+#define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
 #define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
 #define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MONITOR_BASE - \
 					 CONFIG_ENV_SIZE - \

include/configs/3c120_devboard.h

@@ -95,7 +95,8 @@
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + \
 					 16)	/* Print buf size */
-#define CONFIG_SYS_LOAD_ADDR		CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_LOAD_ADDR		0xd4000000	/* Half of RAM */
+#define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
 #define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
 #define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MONITOR_BASE - \
 					 CONFIG_ENV_SIZE - \