tcl/target: add support for Cavium Octeon II CN61xx

Change-Id: Ia14854bc64f5a31b6591be69be4edee9cd1310c3
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/5249
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins

tcl/target/cavium_cn61xx.cfg

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Cavium Octeon II CN61xx (PrID 0x000D9301)
+
+jtag newtap cpu tap0 -irlen 5
+jtag newtap cpu tap1 -irlen 5
+
+target create cpu.core0 mips_mips64 -chain-position cpu.tap0 -endian big -rtos hwthread -coreid 0
+target create cpu.core1 mips_mips64 -chain-position cpu.tap1 -endian big -rtos hwthread -coreid 1
+target smp cpu.core0 cpu.core1
+
+cpu.core0 configure -work-area-phys 0xffffffffa2000000 -work-area-size 0x20000
+cpu.core1 configure -work-area-phys 0xffffffffa2000000 -work-area-size 0x20000
+
+targets cpu.core0