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xtensa: initialize CPENABLE SR when core has one 

XCHAL_CP_NUM is defined in variant/tie.h and it is not included by
head.S, leaving CPENABLE register uninitialised. XCHAL_HAVE_CP is
defined in variant/core.h to 1 when core has CPENABLE SR.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
This commit is contained in:
Max Filippov 2012-12-11 01:26:23 +04:00 committed by Chris Zankel
parent 79fcf52ba0
commit eab5e7a79d
1 changed files with 1 additions and 1 deletions
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2
arch/xtensa/kernel/head.S
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@ -124,7 +124,7 @@ ENTRY(_startup)
/* Disable coprocessors. */
#if XCHAL_CP_NUM > 0
#if XCHAL_HAVE_CP
wsr a0, cpenable
#endif