Initial revision
diff --git a/cpu/mpc8260/kgdb.S b/cpu/mpc8260/kgdb.S
new file mode 100644
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--- /dev/null
+++ b/cpu/mpc8260/kgdb.S
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au>
+ *
+ * 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 <config.h>
+#include <command.h>
+#include <mpc8260.h>
+#include <version.h>
+
+#define CONFIG_8260 1 /* needed for Linux kernel header files */
+#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+
+ /*
+ * cache flushing routines for kgdb
+ */
+
+ .globl kgdb_flush_cache_all
+kgdb_flush_cache_all:
+ mfspr r3, HID0
+ ori r3, r3, HID0_ICFI|HID0_DCI /* Invalidate All */
+ SYNC
+ mtspr HID0, r3
+ blr
+
+ .globl kgdb_flush_cache_range
+kgdb_flush_cache_range:
+ li r5,CFG_CACHELINE_SIZE-1
+ andc r3,r3,r5
+ subf r4,r3,r4
+ add r4,r4,r5
+ srwi. r4,r4,CFG_CACHELINE_SHIFT
+ beqlr
+ mtctr r4
+ mr r6,r3
+1: dcbst 0,r3
+ addi r3,r3,CFG_CACHELINE_SIZE
+ bdnz 1b
+ sync /* wait for dcbst's to get to ram */
+ mtctr r4
+2: icbi 0,r6
+ addi r6,r6,CFG_CACHELINE_SIZE
+ bdnz 2b
+ SYNC
+ blr
+
+#endif /* CFG_CMD_KGDB */