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Diffstat (limited to 'arch/ppc/boot/simple/cpc700_memory.c')
-rw-r--r--arch/ppc/boot/simple/cpc700_memory.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/ppc/boot/simple/cpc700_memory.c b/arch/ppc/boot/simple/cpc700_memory.c
new file mode 100644
index 000000000000..8c75cf6c2383
--- /dev/null
+++ b/arch/ppc/boot/simple/cpc700_memory.c
@@ -0,0 +1,36 @@
+/*
+ * arch/ppc/boot/common/cpc700_memory.c
+ *
+ * Find memory based upon settings in the CPC700 bridge
+ *
+ * Author: Dan Cox
+ *
+ * 2001-2002 (c) MontaVista, Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <asm/types.h>
+#include <asm/io.h>
+#include "cpc700.h"
+
+unsigned long
+cpc700_get_mem_size(void)
+{
+ int i;
+ unsigned long len, amt;
+
+ /* Start at MB1EA, since MB0EA will most likely be the ending address
+ for ROM space. */
+ for(len = 0, i = CPC700_MB1EA; i <= CPC700_MB4EA; i+=4) {
+ amt = cpc700_read_memreg(i);
+ if (amt == 0)
+ break;
+ len = amt;
+ }
+
+ return len;
+}
+
+