-#define CONFIG_SYS_MEMTEST_START (NV_PA_SDRC_CS0 + 0x600000)
-#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + 0x100000)
+#ifdef CONFIG_ARM64
+#define FDTFILE "nvidia/" CONFIG_DEFAULT_DEVICE_TREE ".dtb"
+#else
+#define FDTFILE CONFIG_DEFAULT_DEVICE_TREE ".dtb"
+#endif