zynq: Enable cache options

- Enable cache command
- Turn-off L2 cache
- Turn-on D-cache

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>

include/configs/zynq.h

@@ -16,6 +16,16 @@
 # define CONFIG_CPU_FREQ_HZ	800000000
 #endif
 
+/* Cache options */
+#define CONFIG_CMD_CACHE
+#define CONFIG_SYS_CACHELINE_SIZE	32
+
+#define CONFIG_SYS_L2CACHE_OFF
+#ifndef CONFIG_SYS_L2CACHE_OFF
+# define CONFIG_SYS_L2_PL310
+# define CONFIG_SYS_PL310_BASE		0xf8f02000
+#endif
+
 /* Serial drivers */
 #define CONFIG_BAUDRATE		115200
 /* The following table includes the supported baudrates */