ARM: socfpga: Pull DRAM size from DT

Pull the DRAM size from DT instead of hardcoding it into U-Boot.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/mach-socfpga/misc.c

@@ -40,7 +40,9 @@ struct bsel bsel_str[] = {
 
 int dram_init(void)
 {
-	gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+	if (fdtdec_setup_memory_size() != 0)
+		return -EINVAL;
+
 	return 0;
 }