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From: Andrew Wozniak <awozniak@mc.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Parallel Flash devices and FLASH_CFI_X8X16
Date: Fri, 10 Dec 2004 12:10:45 -0500	[thread overview]
Message-ID: <41B9D895.2090204@mc.com> (raw)

Hello everyone,

I'v been making progress on our port to a custom PPC440GX board.  We
want to use the CFI driver for all U-Boot Flash operations.

Our board design uses 2 Intel 16-bit wide StrataFlash chips wired in
"parallel". But with the following defines in place, flash_init() 
crashes (attachment).

#define CFG_FLASH_CFI
#define CFG_FLASH_CFI_DRIVER
#define CFG_FLASH_PROTECTION

None of the U-Boot docs or source code describe a parallel chip
configuration, but the flash_cfi.h history entry does suggest its
support: 01/22/2004 - Write performance enhancements for parallel chips

The source also checks the status of info->interface for a value of
FLASH_CFI_X8X16.  I have not yet tried setting this "interface" value.

If anyone can suggest any other settings that I should be pay attention
to, please advise.

Thank you, Andy
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                 reply	other threads:[~2004-12-10 17:10 UTC|newest]

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