diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index 8233f1f..efcfe84 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -174,6 +174,18 @@
 	return ;
 }
 
+static void boot_prep_linux(bootm_headers_t *images)
+{
+#ifdef CONFIG_MP
+	/*
+	 * if we are MP make sure to flush the device tree so any changes are
+	 * made visibile to all other cores.  In AMP boot scenarios the cores
+	 * might not be HW cache coherent with each other.
+	 */
+	flush_cache((unsigned long)images->ft_addr, images->ft_len);
+#endif
+}
+
 static int boot_cmdline_linux(bootm_headers_t *images)
 {
 	ulong of_size = images->ft_len;
@@ -329,19 +341,17 @@
 		return 0;
 	}
 
-	/*
-	 * We do nothing & report success to retain compatiablity with older
-	 * versions of u-boot in which this use to flush the dcache on MP
-	 * systems
-	 */
-	if (flag & BOOTM_STATE_OS_PREP)
+	if (flag & BOOTM_STATE_OS_PREP) {
+		boot_prep_linux(images);
 		return 0;
+	}
 
 	if (flag & BOOTM_STATE_OS_GO) {
 		boot_jump_linux(images);
 		return 0;
 	}
 
+	boot_prep_linux(images);
 	ret = boot_body_linux(images);
 	if (ret)
 		return ret;