boot - Don't enable the OS CPU timer

This timer is not needed by the boot loader (and the underlying timer
setting may be disabled).  Prevent the BSP from initializing this timer
by overriding the OS_CPUTIME_TIMER_NUM setting with a value of -1.


Project: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/repo
Commit: 
http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/commit/fcb56292
Tree: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/tree/fcb56292
Diff: http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/diff/fcb56292

Branch: refs/heads/sensors_branch
Commit: fcb5629209a68dd4a92d2340e2c7d9fe507d84c9
Parents: 8d146b2
Author: Christopher Collins <ccoll...@apache.org>
Authored: Fri Jan 20 16:21:08 2017 -0800
Committer: Christopher Collins <ccoll...@apache.org>
Committed: Fri Jan 20 16:21:08 2017 -0800

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 apps/boot/syscfg.yml | 1 +
 1 file changed, 1 insertion(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-mynewt-core/blob/fcb56292/apps/boot/syscfg.yml
----------------------------------------------------------------------
diff --git a/apps/boot/syscfg.yml b/apps/boot/syscfg.yml
index 819a70a..215dc5d 100644
--- a/apps/boot/syscfg.yml
+++ b/apps/boot/syscfg.yml
@@ -29,3 +29,4 @@ syscfg.defs:
 syscfg.vals:
     SYSINIT_CONSTRAIN_INIT: 0
     OS_SCHEDULING: 0
+    OS_CPUTIME_TIMER_NUM: -1

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