zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/boot/common/src/uboot/arch/arm/lib/cache.c b/boot/common/src/uboot/arch/arm/lib/cache.c
new file mode 100644
index 0000000..b545fb7
--- /dev/null
+++ b/boot/common/src/uboot/arch/arm/lib/cache.c
@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* for now: just dummy functions to satisfy the linker */
+
+#include <common.h>
+
+void __flush_cache(unsigned long start, unsigned long size)
+{
+#if defined(CONFIG_OMAP2420) || defined(CONFIG_ARM1136)
+ 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;
+}
+void flush_cache(unsigned long start, unsigned long size)
+ __attribute__((weak, alias("__flush_cache")));
+
+/*
+ * Default implementation:
+ * do a range flush for the entire range
+ */
+void __flush_dcache_all(void)
+{
+ flush_cache(0, ~0);
+}
+void flush_dcache_all(void)
+ __attribute__((weak, alias("__flush_dcache_all")));
+
+
+/*
+ * Default implementation of enable_caches()
+ * Real implementation should be in platform code
+ */
+void __enable_caches(void)
+{
+ puts("WARNING: Caches not enabled\n");
+}
+void enable_caches(void)
+ __attribute__((weak, alias("__enable_caches")));