1 files changed, 81 insertions, 0 deletions
diff --git a/post/drivers/cache.c b/post/drivers/cache.c
new file mode 100644
index 00000000000..501465c06a1
--- /dev/null
+++ b/post/drivers/cache.c
@@ -0,0 +1,81 @@
+/*
+ * (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
+ */
+
+#include <common.h>
+
+/* Cache test
+ *
+ * This test verifies the CPU data and instruction cache using
+ * several test scenarios.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include <watchdog.h>
+
+#if CONFIG_POST & CFG_POST_CACHE
+
+#define CACHE_POST_SIZE	1024
+
+extern int cache_post_test1 (char *, unsigned int);
+extern int cache_post_test2 (char *, unsigned int);
+extern int cache_post_test3 (char *, unsigned int);
+extern int cache_post_test4 (char *, unsigned int);
+extern int cache_post_test5 (void);
+extern int cache_post_test6 (void);
+
+int cache_post_test (int flags)
+{
+	int ints = disable_interrupts ();
+	int res = 0;
+	static char ta[CACHE_POST_SIZE + 0xf];
+	char *testarea = (char *) (((unsigned long) ta + 0xf) & ~0xf);
+
+	WATCHDOG_RESET ();
+	if (res == 0)
+		res = cache_post_test1 (testarea, CACHE_POST_SIZE);
+	WATCHDOG_RESET ();
+	if (res == 0)
+		res = cache_post_test2 (testarea, CACHE_POST_SIZE);
+	WATCHDOG_RESET ();
+	if (res == 0)
+		res = cache_post_test3 (testarea, CACHE_POST_SIZE);
+	WATCHDOG_RESET ();
+	if (res == 0)
+		res = cache_post_test4 (testarea, CACHE_POST_SIZE);
+	WATCHDOG_RESET ();
+	if (res == 0)
+		res = cache_post_test5 ();
+	WATCHDOG_RESET ();
+	if (res == 0)
+		res = cache_post_test6 ();
+
+	WATCHDOG_RESET ();
+	if (ints)
+		enable_interrupts ();
+	return res;
+}
+
+#endif /* CONFIG_POST & CFG_POST_CACHE */
+#endif /* CONFIG_POST */