From 76d3131f483417cf596503e022da3d74a45514e6 Mon Sep 17 00:00:00 2001 From: zwelch Date: Sun, 24 May 2009 02:08:17 +0000 Subject: [PATCH 1/1] Nicolas Pitre : Update sheevaplug interface script: When the CPU is in the WFI state, the JTAG interface simply doesn't respond at all and initial tap examination simply fails. Let's simply do it again when we come around to assert nSRST. git-svn-id: svn://svn.berlios.de/openocd/trunk@1905 b42882b7-edfa-0310-969c-e2dbd0fdcd60 --- src/target/board/sheevaplug.cfg | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/target/board/sheevaplug.cfg b/src/target/board/sheevaplug.cfg index 61d324d0b2..6fe3ce3eb0 100644 --- a/src/target/board/sheevaplug.cfg +++ b/src/target/board/sheevaplug.cfg @@ -17,7 +17,13 @@ proc sheevaplug_init { } { # We need to assert DBGRQ while holding nSRST down. # However DBGACK will be set only when nSRST is released. + # Furthermore, the JTAG interface doesn't respond at all when + # the CPU is in the WFI (wait for interrupts) state, so it is + # possible that initial tap examination failed. So let's + # re-examine the target again here when nSRST is asserted which + # should then succeed. jtag_reset 0 1 + feroceon.cpu arp_examine halt 0 jtag_reset 0 0 wait_halt -- 2.30.2