From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Frysinger Date: Tue, 5 Jul 2011 01:24:21 -0400 Subject: [U-Boot] [PATCH v2] Blackfin: dont reset SWRST on newer bf526 parts In-Reply-To: <1309289787-7846-5-git-send-email-vapier@gentoo.org> References: <1309289787-7846-5-git-send-email-vapier@gentoo.org> Message-ID: <1309843461-678-1-git-send-email-vapier@gentoo.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 --- v2 - skip 0.1 silicon as well since it seems to work arch/blackfin/cpu/reset.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/arch/blackfin/cpu/reset.c b/arch/blackfin/cpu/reset.c index e23dcc7..ff39035 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 -- 1.7.6