Orion5x: Correct DRAM bank detection

arch/arm/cpu/arm926ejs/orion5x/dram.c

@@ -38,7 +38,7 @@ u32 orion5x_sdram_bar(enum memory_bank bank)
 {
 	struct orion5x_ddr_addr_decode_registers *winregs =
 		(struct orion5x_ddr_addr_decode_registers *)
-		ORION5X_CPU_WIN_BASE;
+		ORION5X_DRAM_BASE;
 
 	u32 result = 0;
 	u32 enable = 0x01 & winregs[bank].size;

arch/arm/include/asm/arch-orion5x/orion5x.h

@@ -42,6 +42,7 @@
 #define ORION5X_REGISTER(x)			(ORION5X_REGS_PHY_BASE + x)
 
 /* Documented registers */
+#define ORION5X_DRAM_BASE			(ORION5X_REGISTER(0x01500))
 #define ORION5X_TWSI_BASE			(ORION5X_REGISTER(0x11000))
 #define ORION5X_UART0_BASE			(ORION5X_REGISTER(0x12000))
 #define ORION5X_UART1_BASE			(ORION5X_REGISTER(0x12100))