Commit graph

13 commits

Author SHA1 Message Date
Mike Frysinger
f8f0757dcb sf: localize erase funcs
No need for these to be exported as they are only accessed indirectly
via function pointers.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-12 02:15:56 -04:00
Richard Retanubun
4e6a515899 sf: add struct spi_flash.sector_size parameter
This patch adds a new member to struct spi_flash (u16 sector_size)
and updates the spi flash drivers to start populating it.

This parameter can be used by spi flash commands that need to round
up units of operation to the flash's sector_size.

Having this number in one place also allows duplicated code to be
further collapsed into one common location (such as erase parameter
and the detected message).

Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-12 02:15:37 -04:00
Mike Frysinger
cdb6a00fb8 sf: atmel: undo unification of status polling
The AT45 flashes are completely different (at the command set and
status register level) from all other SPI flashes, so we can't unify
their logic with common code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-11 23:41:09 -04:00
Mike Frysinger
a4c3b40b33 sf: unify read functions
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-11 21:00:55 +02:00
Mike Frysinger
6163045bcd sf: unify status polling for ready bit
All of the spi flash drivers implement the status register polling for
detecting the device ready state, so unify them all in a new helper
function -- spi_flash_wait_ready.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-11 21:00:53 +02:00
Mike Frysinger
b376bbb49f sf: move useful messages from debug to printf
At the moment, the default SPI flash subsystem is quite terse.  Errors and
successes both result in a generic message.  So move the useful errors and
useful successes to printf output by default.

While we're here, also convert the messages to use print_size().

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-06-30 23:47:08 -04:00
Mike Frysinger
4166ee58d3 sf: add GPL-2 license info
Some of the new spi flash files were missing explicit license lines.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-10-24 22:44:18 +02:00
Todor I Mollov
2a6cc58869 sf: atmel: implement power-of-two write/erase funcs
Signed-off-by: Todor I Mollov <tmollov@ucsd.edu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-06-12 20:47:18 +02:00
Mike Frysinger
f773a1bbdb sf: drop DEBUG defines
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-04-02 06:49:49 -04:00
Jean-Christophe PLAGNIOL-VILLARD
6b850a9fa8 mtd: add some at45 spi flash support
- AT45DB321D
 - AT45DB161D
 - AT45DB081D
 - AT45DB041D
 - AT45DB021D
 - AT45DB011D

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-02 06:49:38 -04:00
Brad Bozarth
68f8718df2 spi flash: fix crash due to spi flash miscommunication
Higher spi flash layers expect to be given back a pointer that was
malloced so that it can free the result, but the lower layers return
a pointer that is in the middle of the malloced memory. Reorder the
members of the lower spi structures so that things work out.

Signed-off-by: Brad Bozarth <bflinux@yumbrad.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-01-24 01:57:40 +01:00
Stefan Roese
f2302d4430 Fix merge problems
Signed-off-by: Stefan Roese <sr@denx.de>
2008-08-06 14:05:38 +02:00
Haavard Skinnemoen
d25ce7d24c SPI Flash subsystem
This adds a new SPI flash subsystem.

Currently, only AT45 DataFlash in non-power-of-two mode is supported,
but some preliminary support for other flash types is in place as
well.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-06-03 20:31:34 +02:00