Commit graph

17 commits

Author SHA1 Message Date
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
e7b44eddbe sf: unify erase functions
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-11 21:00:54 +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
000044d8bf sf: unify read/write helpers
These functions largely do the same exact thing, so unify them all
into one basic function.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-11 21:00:49 +02:00
Chong Huang
d1d9065647 sf: new driver for EON devices
Signed-off-by: Chong Huang <chuang@ucrobotics.com>
Signed-off-by: Haitao Zhang <minipanda@linuxrobot.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-12-17 08:53:55 -05:00
Reinhard Meyer
e0987e251f sf: ramtron: new spi fram driver
Supports most types that support Read-Id and the FM25H20.

Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-11-10 04:26:18 -05:00
Reinhard Meyer
0d3fe2b153 sf: turn probe switch into a lookup table
This allows for arbitrarily long manufacturer ids following the JEDEC
standard of 0x7f continuation bytes.  It also makes adding new entries
easier as it's just one element in an array.  The downside is that it
increases code size a bit, but we're talking ~50 bytes.

Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-12 21:08:25 -04:00
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
Thomas Chou
12c2e3bbbe spi_flash: support old STMicro parts with RES
Some old STMicro parts do not support JEDEC ID (0x9f). This patch
uses RES (0xab) to get Electronic ID and translates it to JEDEC ID.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-06-30 23:47:08 -04:00
Jason McMullan
d394a77950 sf: new driver for Winbond W25X16/32/64 devices
Signed-off-by: Jason McMullan <jason.mcmullan@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-11-22 23:54:18 +01:00
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
Prafulla Wadaskar
7ce6031afc sf: new Macronix MX25xx SPI flash driver
Added macronix SF driver for MTD framework
MX25L12805D is supported and tested
TBD: sector erase implementation, other deivces support

Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12 20:47:18 +02:00
Mike Frysinger
0dcdbb172c sf: always read 5 bytes for the idcode
Some SPI flash drivers like to have extended id information available
(like the spansion flash), so rather than making it re-issue the ID cmd
to get at the last 2 bytes, have the common code read 5 bytes rather than
just 3.  This also matches the Linux behavior where it always reads 5 id
bytes from all flashes.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
CC: Mingkai Hu <Mingkai.hu@freescale.com>
2009-04-02 06:50:21 -04:00
Mike Frysinger
1c5874374e sf: add driver for SST flashes
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2009-04-02 06:49:58 -04:00
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
TsiChung Liew
7b7a869a8b mtd: SPI Flash: Support the STMicro Flash
Add MTD SPI Flash support for M25P16, M25P20, M25P32,
M25P40, M25P64, M25P80, M25P128.

Signed-off-by: Jason McMullan <mcmullan@netapp.com>
Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
2008-09-09 11:57:29 -06:00
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