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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>
Mike Frysinger 14 years ago
parent
commit
b0d3dc1291
1 changed files with 3 additions and 1 deletions
  1. 3 1
      arch/blackfin/kernel/reboot.c

+ 3 - 1
arch/blackfin/kernel/reboot.c

@@ -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