1 files changed, 39 insertions, 0 deletions

diff --git a/arch/sh64/boot/compressed/cache.c b/arch/sh64/boot/compressed/cache.c
new file mode 100644
index 000000000000..708707355ffa
--- /dev/null
+++ b/arch/sh64/boot/compressed/cache.c
@@ -0,0 +1,39 @@
+/*
+ * arch/shmedia/boot/compressed/cache.c -- simple cache management functions
+ *
+ * Code extracted from sh-ipl+g, sh-stub.c, which has the copyright:
+ *
+ *   This is originally based on an m68k software stub written by Glenn
+ *   Engel at HP, but has changed quite a bit.
+ *
+ *   Modifications for the SH by Ben Lee and Steve Chamberlain
+ *
+****************************************************************************
+
+                THIS SOFTWARE IS NOT COPYRIGHTED
+
+   HP offers the following for use in the public domain.  HP makes no
+   warranty with regard to the software or it's performance and the
+   user accepts the software "AS IS" with all faults.
+
+   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
+   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+****************************************************************************/
+
+#define CACHE_ENABLE      0
+#define CACHE_DISABLE     1
+
+int cache_control(unsigned int command)
+{
+        volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
+        int i;
+
+        for (i = 0; i < (32 * 1024); i += 32) {
+                (void *) *p;
+                p += (32 / sizeof (int));
+        }
+
+        return 0;
+}