pxa: Disable dcache on palmld, palmtc, zipitz2
These platforms don't include dcache support. Define CONFIG_SYS_DCACHE_OFF
so that functions don't try to call non-existent routines like
flush_dcache_range().
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/include/configs/zipitz2.h b/include/configs/zipitz2.h
index bf6394a..b92f70b 100644
--- a/include/configs/zipitz2.h
+++ b/include/configs/zipitz2.h
@@ -41,6 +41,9 @@
#define CONFIG_ENV_ADDR 0x40000
#define CONFIG_ENV_SIZE 0x20000
+/* we will never enable dcache, because we have to setup MMU first */
+#define CONFIG_SYS_DCACHE_OFF
+
#define CONFIG_SYS_MALLOC_LEN (128*1024)
#define CONFIG_ARCH_CPU_INIT