diff --git a/[refs] b/[refs]
index 823e54467432..fe4b4280f11d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f99e8c1d0f41011870d14d5990c65e65b123f2ef
+refs/heads/master: a2ca78cee1c428843f6833150c7e64db05f9d668
diff --git a/trunk/arch/blackfin/mach-common/arch_checks.c b/trunk/arch/blackfin/mach-common/arch_checks.c
index 9dbafcdcf479..f2ca211a76a0 100644
--- a/trunk/arch/blackfin/mach-common/arch_checks.c
+++ b/trunk/arch/blackfin/mach-common/arch_checks.c
@@ -57,3 +57,8 @@
 	 (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK)))
 # error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB.
 #endif
+
+#if ANOMALY_05000475 && \
+	(defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK))
+# error "Anomaly 475 does not allow you to use Write Back cache with L2 or External Memory"
+#endif