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initial builds of OSK5912 boards need srst_pulls_trst 

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>
This commit is contained in:
David Brownell 2009-10-08 13:15:18 -07:00
parent a8234af06c
commit 41c1af7c67
1 changed files with 4 additions and 0 deletions
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4
tcl/board/osk5912.cfg
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@ -7,6 +7,10 @@ source [find target/omap5912.cfg]
# The TI-14 pin needs "trst_only", and J1 connecting 2 & 3.
reset_config trst_and_srst separate
# NOTE: boards with XOMAP parts wire nSRST to nPWRON_RESET.
# That resets everything -- including JTAG and EmbeddedICE.
# So they must use "reset_config srst_pulls_trst".
# NOTE: an expansion board could add a trace connector ... if
# it does, change this appropriately. And reset_config too,
# assuming JTAG_DIS reroutes JTAG to that connector.