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path: root/util/flashrom/spi.h
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2009-06-28This copy of flashrom is old and unmaintained. Delete it to avoidPatrick Georgi
confusion, after we had a grace period to get people to move over to the new repository. History stays available for the archaeologists and for ancient checkouts (potentially with local changes). Use "svn diff" to get local changes, and apply it to a newer tree (if you manage to apply it, that is). The new repository is available at: svn://coreboot.org/flashrom/trunk Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4379 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-11-28Declare special commands to support the Atmel AT25F512A.Carl-Daniel Hailfinger
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3781 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-11-28Add support for the AMD/ATI SB600 southbridge SPI functionality.Jason Wang
This has been tested by Uwe Hermann on an RS690/SB600 board. Signed-off-by: Jason Wang <Qingpei.Wang@amd.com> Reviewed-by: Joe Bao <zheng.bao@amd.com> Acked-by: Uwe Hermann <uwe@hermann-uwe.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3779 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-11-28Flashrom already has the following probe functions:Carl-Daniel Hailfinger
- probe_spi_rdid with opcode 0x9f, usually 3 bytes ID - probe_spi_res with opcode 0xab, usually 1 byte ID We are missing the following probe function: - probe_spi_rems with opcode 0x90, usually 2 bytes ID RDID provides best specifity (manufacturer, device class and device) and RES is supported by quite a few old chips. However, RES only returns one byte and there are multiple flash chips with different sizes on the market and all of them have the same RES ID. REMS is from the same age as RES, but it provides a manufacturer and a device ID. It is therefore on par with the probing for parallel flash chips and specific enough. The order in which chips should be detected is as follows: 1. RDID 2. REMS 3. RES Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3775 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-11-15The AT25 and AT26 series SPI chips from Atmel are plain EEPROMs.Carl-Daniel Hailfinger
The AT45 series SPI chips are DataFlash EEPROMs which means they have odd (non-power-of-two) sector sizes, but some of the DataFlash chips can be configured or ordered with power-of-two sector sizes. Add probe support for the following Atmel SPI chips: AT25DF021 AT25DF041A AT25DF081 AT25DF161 AT25DF321A AT25DF641 AT25F512B AT25FS010 AT25FS040 AT26DF041 AT26DF081A AT26DF161 AT26DF161A AT26DF321 AT26F004 AT45CS1282 AT45DB011D AT45DB021D AT45DB041D AT45DB081D AT45DB161D AT45DB321C AT45DB321D AT45DB642D Add an explanation why the following chips can't be probed: AT45BR3214B AT45D011 AT45D021A AT45D041A AT45D081A AT45D161 AT45DB011 AT45DB011B AT45DB021A AT45DB021B AT45DB041A AT45DB081A AT45DB161 AT45DB161B AT45DB321 AT45DB321B AT45DB642 Add the ID, but no probing function for this chip: AT25F512A Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Tested-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andriy Gapon <avg@icyb.net.ua> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3754 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-07-07flashrom: Trivial SPI cleanupsPeter Stuge
While writing a new SPI driver I fixed some things in the SPI code: All calls to spi_command() had unneccessary #define duplications, and in some cases the read count define could theoretically become harmful because NULL was passed for the read buffer. Avoid a crash, should someone change the #defines. I also noticed that the only caller of spi_page_program() was the it87 driver, and spi_page_program() could only call back into the it87 driver. Removed the function for easier-to-follow code and made it8716f_spi_page_program() static. The ichspi driver's static page functions are already static. Signed-off-by: Peter Stuge <peter@stuge.se> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3418 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-15Add support for the JEDEC RES (Read Electronic Signature and Resume fromCarl-Daniel Hailfinger
Powerdown) SPI command to flashrom to identify older SPI chips which can't handle JEDEC RDID. Since RES gives a one-byte identifier which is shared among many different vendors and even different sizes, we want to match RES as a last resort if RDID returns 0xff 0xff 0xff. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Peter Stuge <peter@stuge.se> This is a heavily reworked version of a patch by Fredrik Tolf, which was Signed-off-by: Fredrik Tolf <fredrik@dolda2000.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3320 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-13flashrom: Move the SPI #defines from spi.c to spi.hCarl-Daniel Hailfinger
This patch has no code changes. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3302 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1