nds32: Enable two banks of SDRAM on Andes board

The original adp-ag101/adp-ag101p initialize only one bank(64MB)
by default at boot time, but it is not enough for some application,
so increasing to two banks(128M).

Signed-off-by: Kuan-Yu Kuo <ken.kuoky@gmail.com>
Cc: Macpaul Lin <macpaul@gmail.com>
diff --git a/include/configs/adp-ag101.h b/include/configs/adp-ag101.h
index b6e3844..1b84b04 100644
--- a/include/configs/adp-ag101.h
+++ b/include/configs/adp-ag101.h
@@ -235,6 +235,11 @@
 #define CONFIG_SYS_FTSDMC021_BANK0_BSR	(FTSDMC021_BANK_ENABLE	 |	\
 					 CONFIG_SYS_FTSDMC021_BANK0_BASE)
 
+#define CONFIG_SYS_FTSDMC021_BANK1_BASE \
+	(CONFIG_SYS_FTAHBC020S_SLAVE_BSR_BASE + (PHYS_SDRAM_0_SIZE >> 20))
+#define CONFIG_SYS_FTSDMC021_BANK1_BSR (FTSDMC021_BANK_ENABLE   |      \
+		CONFIG_SYS_FTSDMC021_BANK1_BASE)
+
 #endif
 
 /*
@@ -248,9 +253,12 @@
 #else	/* !CONFIG_SKIP_LOWLEVEL_INIT && !CONFIG_MEM_REMAP */
 #define PHYS_SDRAM_0		0x10000000	/* SDRAM Bank #1 */
 #endif
+#define PHYS_SDRAM_1 \
+	(PHYS_SDRAM_0 + PHYS_SDRAM_0_SIZE)	/* SDRAM Bank #2 */
 
-#define CONFIG_NR_DRAM_BANKS	1		/* we have 1 bank of DRAM */
+#define CONFIG_NR_DRAM_BANKS	2		/* we have 2 bank of DRAM */
 #define PHYS_SDRAM_0_SIZE	0x04000000	/* 64 MB */
+#define PHYS_SDRAM_1_SIZE	0x04000000	/* 64 MB */
 
 #define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_0