From: Andreas Schweigstill <andreas@schweigstill.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Atmel DataFlash hooks.
Date: Sat, 27 Jan 2007 18:04:17 +0100 [thread overview]
Message-ID: <45BB8611.5070900@schweigstill.de> (raw)
In-Reply-To: <20070127163626.3935F352B87@atlas.denx.de>
Hello!
Wolfgang Denk schrieb:
> ... and to me this sounds is if it would fit better in the set of
> flash related commands (protect etc.) than any other existing
> interface.
The flash related commands could work on an extension of the block
device layer. IDE/ATA drives also seem to have a means for provision of
drive geometry data to the file system driver or application (e.g. fdisk
under DOS/Windows/Linux). (Yes, I am just joking... :-) )
There is something what I really don't like about U-Boot's current
Dataflash implementation: after copying data to Dataflash using the
"cp.b" command the source data has been corrupted; it has been swapped
with the old contents of the Dataflash. The reason for this behaviour
can be found in the AT91F_SpiWrite() function (at45.c) which programs
the PDC to use the SPI transmit buffer address also as receive address.
Has anybody found out if it is possible to ignore the read data?
With best regards
Andreas Scheigstill
--
Dipl.-Phys. Andreas Schweigstill
Schweigstill IT | Embedded Systems
Schauenburgerstra?e 116, D-24118 Kiel, Germany
Phone: (+49) 431 5606-435, Fax: (+49) 431 5606-436
Mobile: (+49) 171 6921973, Web: http://www.schweigstill.de/
next prev parent reply other threads:[~2007-01-27 17:04 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-26 16:45 [U-Boot-Users] Atmel DataFlash hooks Peter.Pearse
2007-01-26 19:11 ` Grant Likely
2007-01-26 21:25 ` Wolfgang Denk
2007-01-26 22:34 ` Grant Likely
2007-01-27 0:42 ` Wolfgang Denk
2007-01-27 1:52 ` Grant Likely
2007-01-27 4:11 ` [U-Boot-Users] Arm-linux-gcc malloc get failure while arm-elf-gcc ok Rui.Zhou at nokia.com
2007-01-27 11:46 ` Rui.Zhou at nokia.com
2007-01-27 13:34 ` [U-Boot-Users] Atmel DataFlash hooks Andreas Schweigstill
2007-01-27 16:36 ` Wolfgang Denk
2007-01-27 17:04 ` Andreas Schweigstill [this message]
2007-01-27 17:17 ` Ulf Samuelsson
2007-01-28 14:39 ` Wolfgang Denk
2007-01-29 1:32 ` Andreas Schweigstill
2007-01-29 12:52 ` Wolfgang Denk
2007-01-27 22:19 ` Grant Likely
2007-01-28 1:47 ` J. William Campbell
2007-01-28 15:17 ` Wolfgang Denk
2007-01-28 22:21 ` J. William Campbell
2007-01-28 22:50 ` Wolfgang Denk
2007-01-29 2:50 ` Grant Likely
2007-01-29 13:07 ` Wolfgang Denk
2007-01-29 21:06 ` Haavard Skinnemoen
2007-01-29 22:57 ` Ulf Samuelsson
2007-01-29 23:55 ` Wolfgang Denk
2007-01-30 0:28 ` Haavard Skinnemoen
2007-01-30 1:03 ` Wolfgang Denk
2007-01-30 1:16 ` Haavard Skinnemoen
2007-01-30 22:23 ` Wolfgang Denk
2007-01-30 6:52 ` Ulf Samuelsson
2007-01-31 7:44 ` Tolunay Orkun
2007-01-29 3:17 ` J. William Campbell
2007-01-29 7:35 ` Ulf Samuelsson
2007-01-29 13:36 ` Wolfgang Denk
2007-01-29 13:29 ` Wolfgang Denk
2007-01-29 20:45 ` J. William Campbell
2007-01-29 21:48 ` Wolfgang Denk
2007-01-29 23:03 ` J. William Campbell
2007-01-30 0:01 ` Wolfgang Denk
2007-01-29 23:08 ` Ulf Samuelsson
2007-01-30 0:48 ` J. William Campbell
2007-01-30 1:06 ` Wolfgang Denk
2007-01-30 6:55 ` Ulf Samuelsson
2007-01-31 17:11 ` Grant Likely
2007-01-31 17:37 ` Ulf Samuelsson
2007-01-31 21:55 ` Wolfgang Denk
2007-01-31 23:13 ` Ulf Samuelsson
2007-01-31 23:50 ` Grant Likely
2007-02-01 0:06 ` Wolfgang Denk
2007-02-01 2:46 ` Tolunay Orkun
2007-01-29 11:10 ` Stefan Roese
2007-01-29 2:27 ` Grant Likely
2007-01-28 15:01 ` Wolfgang Denk
2007-01-29 2:33 ` Grant Likely
2007-01-29 7:49 ` Ulf Samuelsson
2007-01-29 13:38 ` Wolfgang Denk
[not found] ` <528646bc0701310848x4c63cf53gd228f860c0fd0444@mail.gmail.com>
2007-01-31 16:50 ` Grant Likely
2007-02-01 12:40 ` Andreas Schweigstill
2007-01-29 12:56 ` Wolfgang Denk
2007-01-29 10:43 ` Stefan Roese
-- strict thread matches above, loose matches on Subject: below --
2007-01-26 8:44 Grant Likely
2007-01-26 9:42 ` Peter.Pearse
2007-01-26 13:53 ` Wolfgang Denk
2007-01-26 19:24 ` Grant Likely
2007-01-26 21:27 ` Wolfgang Denk
2007-01-26 22:35 ` Grant Likely
[not found] ` <000001c7416f$fa61fed0$01c4af0a@atmel.com>
2007-01-26 19:02 ` Grant Likely
[not found] ` <02eb01c74180$c4911410$01c4af0a@atmel.com>
2007-01-26 20:27 ` Grant Likely
2007-01-26 21:21 ` Ulf Samuelsson
2007-01-26 22:40 ` Grant Likely
2007-01-26 23:01 ` Ulf Samuelsson
2007-01-26 23:46 ` Grant Likely
2007-01-27 9:44 ` Ulf Samuelsson
2007-01-29 10:49 ` Stefan Roese
2007-01-29 13:44 ` Peter.Pearse
2007-01-29 14:47 ` Stefan Roese
2007-01-29 16:03 ` Wolfgang Denk
2007-01-29 10:33 ` Stefan Roese
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