From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v4] cfi flash: add status polling method for amd flash
Date: Thu, 25 Mar 2010 09:43:17 +0100 [thread overview]
Message-ID: <201003250943.17140.sr@denx.de> (raw)
In-Reply-To: <1269397761-23394-1-git-send-email-thomas@wytron.com.tw>
On Wednesday 24 March 2010 03:29:21 Thomas Chou wrote:
> This patch adds status polling method to offer an alternative to
> data toggle method for amd flash chips.
>
> This patch is needed for nios2 cfi flash interface, where the bus
> controller performs 4 bytes read cycles for a single byte read
> instruction. The data toggle method can not detect chip busy
> status correctly. So we have to poll DQ7, which will be inverted
> when the chip is busy.
>
> This feature is enabled with the config def,
> CONFIG_SYS_CFI_FLASH_STATUS_POLL
>
> In flash_erase, the verbose printing of '.' is changed that it will
> go with each sector whether successed or failed.
Applied to u-boot-cfi-flash/next. Thanks.
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de
next prev parent reply other threads:[~2010-03-25 8:43 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-23 3:24 [U-Boot] [PATCH] cfi flash: add status polling method for amd flash Thomas Chou
2010-03-23 10:12 ` Stefan Roese
2010-03-24 2:37 ` Thomas Chou
2010-03-23 10:39 ` [U-Boot] [Nios2-dev] " Michael Schnell
2010-03-24 2:54 ` Thomas Chou
2010-03-24 2:29 ` [U-Boot] [PATCH v4] " Thomas Chou
2010-03-25 8:43 ` Stefan Roese [this message]
2010-03-25 11:49 ` Wolfgang Denk
2010-03-26 10:34 ` Stefan Roese
2010-03-25 11:49 ` Wolfgang Denk
2010-03-25 14:23 ` Thomas Chou
2010-03-25 14:38 ` [U-Boot] [PATCH v5] " Thomas Chou
2010-03-26 0:17 ` [U-Boot] [PATCH v6] " Thomas Chou
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