Ofrwarded from Ron, who's not subscribed.
----- Forwarded message from Ron <ron@debian.org> -----
From: Ron <ron@debian.org>
Date: Wed, 14 Oct 2009 04:50:17 +1030
To: wookey@debian.org
Subject: [PATCH] OpenRD board configuration
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This piggybacks on the 'sheevaplug' layout which uses the same Kirkwood SoC.
Signed-off-by: Ron Lee <ron@debian.org>
Startup now mostly works, except that the initial target state
is "unknown" ... previously, it refused to even start.
Getting that far required fixing the ircapture value (which
can never have been correct!) and the default JTAG clock rate,
then providing custom reset script.
The "reset" command is still iffy. DCSR updates, and loading
the debug handler, report numerous DR/IR capture failures.
But once that's done, "poll" reports that the CPU is halted
(which it shouldn't be, this was "reset run"!), due to the
rather curious reason "target-not-halted".
Summary: you still can't debug these parts, but it's closer.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This is clearly noted in the hardware spec (section 5.2.3); it
works around a chip erratum: "If the MPU_RESET signal is used,
it may cause the EMIFS bus to lock."
I seem to have a board with such an initial build. The chip
is labeled XOMAP. Presumably, parts without that "X" prefix
(eXperimental) resolve this.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Without some extra delay after releasing SRST, we seemed to
be trying to talk to the TAP before it was ready to respond.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
The model is that this fires after scanchain verification, when it's
safe to call "jtag tapenable $TAPNAME". So it will fire as part of
non-error paths of "init" and "reset" command processing. However it
will *NOT* trigger during "jtag_reset" processing, which skips all
scan chain verification, or after verification errors.
ALSO:
- switch DaVinci chips to use this new mechanism
- log TAP activation/deactivation, since their IDCODEs aren't verified
- unify "enum jtag_event" scripted event notifications
- remove duplicative JTAG_TAP_EVENT_POST_RESET
git-svn-id: svn://svn.berlios.de/openocd/trunk@2800 b42882b7-edfa-0310-969c-e2dbd0fdcd60
It can be sped up later, once it's known the PLLs are active.
Note that modern tools from TI all use adaptive clocking; and
that if that's done with OpenOCD, "too fast" is also a non-issue.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2740 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Update the board config for the DaVinci DM355 EVM so the reset-init
event handler does the rest of the work it should do:
- minor PLL setup bugfixes
- initialize the DDR2 controller
- probe both NAND banks
- initialize UART0
- enable the icache
git-svn-id: svn://svn.berlios.de/openocd/trunk@2699 b42882b7-edfa-0310-969c-e2dbd0fdcd60
David Brownell
Dean Glazeski
Wookey
Øyvind Harboe
Rabeeh Khoury
John Rigby
oharboe
dbrownell
mlu
ntfreak