arm: spear: Enable caches on SPEAr

The designware ethernet driver supports d-cache now. So there is nothing
stopping us now to enable the caches completely on SPEAr.

Tested on SPEAr600 x600 board.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vipin Kumar <vk.vipin@gmail.com>

arch/arm/cpu/arm926ejs/spear/cpu.c

@@ -56,6 +56,16 @@ int arch_cpu_init(void)
 	return 0;
 }
 
+void enable_caches(void)
+{
+#ifndef CONFIG_SYS_ICACHE_OFF
+	icache_enable();
+#endif
+#ifndef CONFIG_SYS_DCACHE_OFF
+	dcache_enable();
+#endif
+}
+
 #ifdef CONFIG_DISPLAY_CPUINFO
 int print_cpuinfo(void)
 {