ls1046ardb: Add support for JTAG boot
This adds support for booting entirely from JTAG while using a
hard-coded RCW. With these steps, it is not necessary to program a
"good" RCW using CodeWarrior. The method here can be performed with any
JTAG adapter supported by OpenOCD, including the on-board CMSIS-DAP
(albeit very slowly).
These steps require LS1046A support in OpenOCD, which was added in [1].
[1] https://sourceforge.net/p/openocd/code/ci/5b70c1f679755677c925b4e6dd2c3d8be4715717/
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
[trini: Add reference to doc/board/nxp/ls1046ardb.rst]
diff --git a/doc/usage/semihosting.rst b/doc/usage/semihosting.rst
index 1d79398..6a280b4 100644
--- a/doc/usage/semihosting.rst
+++ b/doc/usage/semihosting.rst
@@ -62,7 +62,8 @@
'arm semihosting enable' -c resume
Note that enabling semihosting can only be done after attaching to the
-board with ``init``, and must be done while the CPU is halted.
+board with ``init``, and must be done while the CPU is halted. For a more
+extended example, refer to the :ref:`LS1046ARDB docs <ls1046ardb_jtag>`.
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