1 files changed, 66 insertions, 0 deletions
diff --git a/sys/arch/arm/footbridge/footbridge_machdep.c b/sys/arch/arm/footbridge/footbridge_machdep.c
new file mode 100644
index 00000000000..40a5a1b4798
--- /dev/null
+++ b/sys/arch/arm/footbridge/footbridge_machdep.c
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+/*	$OpenBSD: footbridge_machdep.c,v 1.1 2004/02/01 05:09:49 drahn Exp $	*/
+/*	$NetBSD: footbridge_machdep.c,v 1.8 2002/05/03 16:45:22 rjs Exp $	*/
+
+/*
+ * Copyright (c) 1997 Mark Brinicombe.
+ * Copyright (c) 1997 Causality Limited
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Mark Brinicombe
+ *	for the NetBSD Project.
+ * 4. The name of the company nor the name of the author may be used to
+ *    endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <uvm/uvm_extern.h>
+#include <machine/pmap.h>
+#include <arm/footbridge/footbridge.h>
+#include <arm/footbridge/dc21285mem.h>
+
+/*
+ * For optimal cache cleaning we need two 16K banks of
+ * virtual address space that NOTHING else will access
+ * and then we alternate the cache cleaning between the
+ * two banks.
+ * The cache cleaning code requires requires 2 banks aligned
+ * on total size boundry so the banks can be alternated by
+ * eorring the size bit (assumes the bank size is a power of 2)
+ *
+ * On the DC21285 we have a special cache clean area so we will
+ * use it.
+ */
+
+extern unsigned int sa1_cache_clean_addr;
+extern unsigned int sa1_cache_clean_size;
+
+void
+footbridge_sa110_cc_setup(void)
+{
+	sa1_cache_clean_addr = DC21285_CACHE_FLUSH_VBASE;
+	sa1_cache_clean_size = (PAGE_SIZE * 4);
+}