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Blackfin: dpmc: omit RETE/RETN when hibernating

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The RETE/RETN registers are only used in emulation(JTAG) and NMI nodes,
or as scratch registers, neither of which need to be saved/restored as
this code doesn't execute at those core event levels.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2011-06-26 14:08:27 -04:00
parent 4705a25c06
commit 429e257ea3
1 changed files with 0 additions and 4 deletions
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4
arch/blackfin/mach-common/dpmc_modes.S
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@ -510,8 +510,6 @@ ENTRY(_do_hibernate)
r0 = RETI;
[--sp] = r0;
[--sp] = RETX;
[--sp] = RETN;
[--sp] = RETE;
[--sp] = SEQSTAT;
/* Save Magic, return address and Stack Pointer */
@ -533,8 +531,6 @@ ENTRY(_do_hibernate)
/* Restore Core Registers */
SEQSTAT = [sp++];
RETE = [sp++];
RETN = [sp++];
RETX = [sp++];
r0 = [sp++];
RETI = r0;