Revert "ppc: Unlock cache-as-ram in a consistent manner"

This reverts commit 982adfc610669482a32127282fe489857a92cfe3.

This patch causes problems on MPC83xx boards - flash recognition stops
working.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c
index e7d2c98..0d702bf 100644
--- a/lib_ppc/bootm.c
+++ b/lib_ppc/bootm.c
@@ -38,6 +38,11 @@
 #include <fdt.h>
 #include <libfdt.h>
 #include <fdt_support.h>
+
+#endif
+
+#ifdef CONFIG_SYS_INIT_RAM_LOCK
+#include <asm/cache.h>
 #endif
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -66,6 +71,10 @@
 
 	show_boot_progress (15);
 
+#if defined(CONFIG_SYS_INIT_RAM_LOCK) && !defined(CONFIG_E500)
+	unlock_ram_in_cache();
+#endif
+
 #if defined(CONFIG_OF_LIBFDT)
 	if (of_flat_tree) {	/* device tree; boot new style */
 		/*