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Blackfin: small cpu init optimization while setting interrupt mask 

Use the sti instruction to set the initial interrupt mask rather than
banging on the core IMASK MMR to save both space and time.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2008-10-11 21:19:39 -04:00
parent 960922291c
commit bd33e5c613
1 changed files with 2 additions and 5 deletions
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7
cpu/blackfin/start.S
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@ -193,11 +193,8 @@ ENTRY(_start)
p1.l = .Lenable_nested;
p1.h = .Lenable_nested;
[p0] = p1;
p2.l = LO(IMASK);
p2.h = HI(IMASK);
p3.l = LO(EVT_IVG15);
p3.h = HI(EVT_IVG15);
[p2] = p3;
r7 = EVT_IVG15 (z);
sti r7;
raise 15;
p4.l = .LWAIT_HERE;
p4.h = .LWAIT_HERE;