arm: socfpga: spl: Add SDRAM check

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
diff --git a/arch/arm/cpu/armv7/socfpga/spl.c b/arch/arm/cpu/armv7/socfpga/spl.c
index e7b4d29..d7cedad 100644
--- a/arch/arm/cpu/armv7/socfpga/spl.c
+++ b/arch/arm/cpu/armv7/socfpga/spl.c
@@ -191,4 +191,10 @@
 
 	sdram_size = sdram_calculate_size();
 	debug("SDRAM: %ld MiB\n", sdram_size >> 20);
+
+	/* Sanity check ensure correct SDRAM size specified */
+	if (get_ram_size(0, sdram_size) != sdram_size) {
+		puts("SDRAM size check failed!\n");
+		hang();
+	}
 }