Patchwork [U-Boot] ARM: mx6: define CONFIG_ARM_ERRATA_742230

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Submitter Shawn Guo
Date April 16, 2013, 2:58 p.m.
Message ID <1366124327-2235-1-git-send-email-shawn.guo@linaro.org>
Download mbox | patch
Permalink /patch/237004/
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Comments

Shawn Guo - April 16, 2013, 2:58 p.m.
The ARM errata 742230 - "ARM errata: DMB operation may be faulty" is
claimed for Cortex-A9 (r1p0..r2p2).  Though i.MX6 uses a newer revision
than r2p2, we are seeing a reboot failure on i.MX6 SMP build that can be
fixed by applying the workaround for this errata.  So for safety, let's
define CONFIG_ARM_ERRATA_742230 to enable the workaround on i.MX6.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 include/configs/mx6_common.h |    1 +
 1 file changed, 1 insertion(+)
Shawn Guo - April 16, 2013, 3:12 p.m.
On Tue, Apr 16, 2013 at 05:05:30PM +0200, Stefano Babic wrote:
> This is a fix, but the release is coming (end of the week). What do you
> think if I push this to -next ?

No pressure on this, so -next is fine.  Thanks, Stefano.

Shawn
Stefano Babic - April 17, 2013, 8:20 a.m.
On 16/04/2013 16:58, Shawn Guo wrote:
> The ARM errata 742230 - "ARM errata: DMB operation may be faulty" is
> claimed for Cortex-A9 (r1p0..r2p2).  Though i.MX6 uses a newer revision
> than r2p2, we are seeing a reboot failure on i.MX6 SMP build that can be
> fixed by applying the workaround for this errata.  So for safety, let's
> define CONFIG_ARM_ERRATA_742230 to enable the workaround on i.MX6.
> 
> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
> ---

Applied to u-boot-imx, -next branch, thanks.

Best regards,
Stefano Babic

Patch

diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h
index b333937..674bcd3 100644
--- a/include/configs/mx6_common.h
+++ b/include/configs/mx6_common.h
@@ -17,6 +17,7 @@ 
 #ifndef __MX6_COMMON_H
 #define __MX6_COMMON_H
 
+#define CONFIG_ARM_ERRATA_742230
 #define CONFIG_ARM_ERRATA_743622
 #define CONFIG_ARM_ERRATA_751472