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From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [patch] do not use cmd_reset uninitialized in cfi_flash.c
Date: Tue, 29 Jan 2008 08:05:36 -0500	[thread overview]
Message-ID: <200801290805.37319.vapier@gentoo.org> (raw)
In-Reply-To: <200801290716.00231.sr@denx.de>

On Tuesday 29 January 2008, Stefan Roese wrote:
> On Tuesday 29 January 2008, Mike Frysinger wrote:
> > The cmd_reset member of the flash info struct is not initialized until
> > the specific cmdset function is called.  This normally happens by:
> >  flash_get_size -> flash_detect_cfi -> cmdset_*_init
> > That means we cannot use cmd_reset inside of the cfi detection functions.
>
> Right. But your version now uses the Intel reset command (0xff)
> unconditionally. AMD/Spansion style flash chips need AMD_CMD_RESET (0xf0)
> instead. Any idea how we should handle this?

i saw that, but there's a define already to account for this i think: 
CFG_FLASH_CFI_AMD_RESET ... or did i miss the purpose of this ?

the other option is to just not issue a reset ... when i looked at the kernel, 
it didnt seem to issue a reset in the cfi detection case
-mike
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  reply	other threads:[~2008-01-29 13:05 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-29  3:27 [U-Boot-Users] [patch] do not use cmd_reset uninitialized in cfi_flash.c Mike Frysinger
2008-01-29  6:15 ` Stefan Roese
2008-01-29 13:05   ` Mike Frysinger [this message]
2008-01-29 13:13     ` Stefan Roese
2008-02-03 15:56       ` Michael Schwingen
2008-02-04 10:13         ` Stefan Roese
2008-02-04 15:48           ` Michael Schwingen
2008-02-04 16:05             ` Stefan Roese
2008-02-05  9:45               ` Michael Schwingen
2008-02-05  9:52                 ` Stefan Roese
2008-02-18 22:16               ` Michael Schwingen
2008-02-20  9:18                 ` Stefan Roese
2008-02-20  9:50                   ` Haavard Skinnemoen

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