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Blackfin: bf526: restrict reboot workaround to 0.0 silicon 

The bug in the BF526 rom when doing a software reset exists only in older
silicon versions, so don't clear SWRST on newer parts.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2011-06-30 00:49:30 -04:00
parent 65cd3b5362
commit b0d3dc1291
1 changed files with 3 additions and 1 deletions
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4
arch/blackfin/kernel/reboot.c
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@ -54,7 +54,9 @@ static void bfin_reset(void)
/* The BF526 ROM will crash during reset */
#if defined(__ADSPBF522__) || defined(__ADSPBF524__) || defined(__ADSPBF526__)
bfin_read_SWRST();
/* Seems to be fixed with newer parts though ... */
if (__SILICON_REVISION__ < 1 && bfin_revid() < 1)
bfin_read_SWRST();
#endif
/* Wait for the SWRST write to complete. Cannot rely on SSYNC