From: Mike Frysinger <vapier@gentoo.org>
Date: Sat, 30 Apr 2011 08:38:22 +0000 (-0400)
Subject: Blackfin: dont reset SWRST on newer bf526 parts
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=08a82a447b2a89d705edba952612d00c84129cb8;p=project%2Fbcm63xx%2Fu-boot.git

Blackfin: dont reset SWRST on newer bf526 parts

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>
---

diff --git a/arch/blackfin/cpu/reset.c b/arch/blackfin/cpu/reset.c
index e23dcc7bae..ff39035de2 100644
--- a/arch/blackfin/cpu/reset.c
+++ b/arch/blackfin/cpu/reset.c
@@ -51,7 +51,9 @@ 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