microwatt/jtag_tap
Anton Blanchard 0be86c3a32 Update JTAG TAP controller for Microwatt
Make a few changes to match what mw_debug expects:

- 6 byte instructions
- IDCODE at 001001
- microwatt debug at 000011

Also change IDCODE to be an IBM ID.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
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tap_top.v Update JTAG TAP controller for Microwatt