diff --git a/arch/arm/lib/cache.c b/arch/arm/lib/cache.c
index 61ee9d3b13..b36fd24407 100644
--- a/arch/arm/lib/cache.c
+++ b/arch/arm/lib/cache.c
@@ -31,6 +31,12 @@ void  flush_cache (unsigned long dummy1, unsigned long dummy2)
 	void arm1136_cache_flush(void);
 
 	arm1136_cache_flush();
+#endif
+#ifdef CONFIG_ARM926EJS
+	/* test and clean, page 2-23 of arm926ejs manual */
+	asm("0: mrc p15, 0, r15, c7, c10, 3\n\t" "bne 0b\n" : : : "memory");
+	/* disable write buffer as well (page 2-22) */
+	asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0));
 #endif
 	return;
 }
diff --git a/include/configs/imx27lite-common.h b/include/configs/imx27lite-common.h
index 1da860261a..33550ba661 100644
--- a/include/configs/imx27lite-common.h
+++ b/include/configs/imx27lite-common.h
@@ -188,6 +188,7 @@
  */
 #include <config_cmd_default.h>
 #define CONFIG_CMD_ASKENV
+#define CONFIG_CMD_CACHE
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_DIAG
 #define CONFIG_CMD_FAT
diff --git a/include/configs/tx25.h b/include/configs/tx25.h
index c8188ca525..013aa3541c 100644
--- a/include/configs/tx25.h
+++ b/include/configs/tx25.h
@@ -131,6 +131,7 @@
 /* U-Boot commands */
 #include <config_cmd_default.h>
 #define CONFIG_CMD_NAND
+#define CONFIG_CMD_CACHE
 
 /*
  * Ethernet