From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] * Fix: watchdog timed out, if flash blank (0xFF) blocks
Date: Thu, 9 Feb 2012 10:49:52 +0100 [thread overview]
Message-ID: <201202091049.53189.sr@denx.de> (raw)
In-Reply-To: <1327652993-16667-1-git-send-email-esw@bus-elektronik.de>
On Friday 27 January 2012 09:29:53 Jens Scharsig (BuS Elektronik) wrote:
> The current implementation of cfi_flash uses udelay to reset watchdog.
> If several blocks are blank (0xff filled) the watchdog timed out.
> The reason is, udelay is never called, if flash device is ready to fast.
>
> e.g.
> mw.w $(copy_addr) FFFF 10000;cp.b $(copy_addr) 10880000 20000
>
> -> watchdog timed out
>
> mw.w $(copy_addr) 0000 10000;cp.b $(copy_addr) 10880000 20000
>
> -> watchdog not timed out
>
> This patch adds an extra watchdog reset in front of flash ready check.
>
> Signed-off-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
Applied to u-boot-cfi-flash. Thanks.
Best regards,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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prev parent reply other threads:[~2012-02-09 9:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-27 8:29 [U-Boot] [PATCH] * Fix: watchdog timed out, if flash blank (0xFF) blocks Jens Scharsig
2012-02-09 9:49 ` Stefan Roese [this message]
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