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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
2008-06-30First attempt to clean up SPI probing and create a commonStefan Reinauer
construct: the flash bus. At some point the flash bus will be part of struct flashchip. Pardon me for pushing this in, but I think it is important to beware of further decay and it will improve things for other developers in the short run. Carl-Daniel, I will consider your suggestions in another patch. I want to keep things from getting too much for now. The patch includes Rudolf's VIA SPI changes though. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3401 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-06-30Mine AMIC flash chip needs 4 bytes RDID. Following patch adds support for that.Rudolf Marek
Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3399 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-06-30This patch adds support for VIA SPI controller on VT8237S. It is similar withRudolf Marek
few documented exceptions to ICH7 SPI controller. Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3398 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-06-27* ICH7 SPI supportStefan Reinauer
* fix some variable names in ichspi.c (Offset -> offset) * Dump ICH7 SPI bar with -V * Improve error message in case IOPL goes wrong. (It might not even be an IOPL) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3393 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-06-24flashrom: Slight restructure of SPI probe_ functionsPeter Stuge
Preparation for a probe optimization patch. This patch does not change any functionality. spi_probe_rdid was tested to still work on my M57SLI rev 2. The idea is to have error checks return error immediately when something fails, rather than having code inside an if block where the condition tests for success. This means: Less indentation, more clear what the code is checking. Signed-off-by: Peter Stuge <peter@stuge.se> Acked-by: Ward Vandewege <ward@gnu.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3386 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-16Add support for SPI chips on ICH9. This is done by using the generic SPIDominik Geyer
interface. Signed-off-by: Dominik Geyer <dominik.geyer@kontron.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3325 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-15Print detailed status register information for SST25VF series flash.Carl-Daniel Hailfinger
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@3323 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
2008-05-14Check the JEDEC vendor ID for correct parity. Flash chips which can beCarl-Daniel Hailfinger
detected by JEDEC probe routines all have vendor IDs with correct parity. Use a parity check as additional hint whether a vendor ID makes sense. Note: Device IDs have no parity requirements whatsoever. 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@3308 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-13flashrom: Move all IT87xx specific SPI routines from spi.c to a separateCarl-Daniel Hailfinger
file it87spi.c. No behavioural changes, but greatly improved SPI abstraction. 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@3305 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
2008-05-13Change the SPI parts of flashrom to prepare for a merge ofCarl-Daniel Hailfinger
ICH9 SPI support. In theory, this patch has no behaviour 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@3301 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-10Improve flashrom SPI abstraction, second step.Carl-Daniel Hailfinger
This paves the way to have a fully generic generic_spi_command without knowledge about any SPI controller. The third step would be calling SPI controller functions via a function pointer. 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@3296 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-05-10flashrom: Rename generic_spi_*() functions to spi_*()Peter Stuge
This is a very early step toward cleaning up SPI code in flashrom. Signed-off-by: Peter Stuge <peter@stuge.se> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3295 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-02-06Handle JEDEC JEP106W continuation codes in SPI RDID. Some vendors likeCarl-Daniel Hailfinger
Programmable Micro Corp (PMC) need this. Both the serial and parallel flash JEDEC detection routines would benefit from a parity/sanity check of the vendor ID. Will do this later. Add support for the PMC Pm25LV family of SPI flash chips. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Chris Lingard <chris@stockwith.co.uk> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3091 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-01-22Make sure we delay writing the next byte long enough in SPI byteCarl-Daniel Hailfinger
programming. Minor formatting changes. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Harald Gutmann <harald.gutmann@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3069 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-01-21Omitting the wait for SPI ready when there is no data to be read, e.g.Ronald Hoogenboom
readcnt==0 saves 10 seconds with the unconditional 10us delay, reducing programming time for SST25VF016B to 40-45 secs. Signed-off-by: Ronald Hoogenboom <hoogenboom30@zonnet.nl> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3068 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-01-19Support SPI flash chips bigger than 512 kByte sitting behind IT8716FRonald Hoogenboom
Super I/O performing LPC-to-SPI flash translation. Signed-off-by: Ronald Hoogenboom <hoogenboom30@zonnet.nl> 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@3061 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-01-04Print at least the vendor for SPI flash chips if the exact chip ID isCarl-Daniel Hailfinger
unknown. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3032 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-12-29Print the chip status register for all SPI chips on probe if verboseCarl-Daniel Hailfinger
output is specified. Pretty-print the chip status register (including block lock information) for ST M25P family and Macronix MX25L family chips. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Corey Osgood <corey.osgood@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3026 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-12-17To make it easier to add new SPI chips to flashchips.c, rename functionsCarl-Daniel Hailfinger
with multiple possible opcodes from linear numbering at the end (_1, _2) to include the opcode at the end (_60, _c7). That way, you only have to take a short look at the data sheet and choose the right function by appending the opcode listed in the data sheet. No functional changes. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Ward Vandewege <ward@gnu.org> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3009 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-12-16Add support for ST M25P80 chips to flashrom. Detection was tested.Carl-Daniel Hailfinger
Print status register before erase to help debugging block locks. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Corey Osgood <corey.osgood@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3008 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-22Introduce block and sector erase routines to flashrom, but do not useCarl-Daniel Hailfinger
them yet. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2881 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-18Remove hardcoded wait from SPI write/erase routines and check the chipCarl-Daniel Hailfinger
status register instead. This has been tested by Harald Gutmann <harald.gutmann@gmx.net> with a MX25L4005 chip. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2876 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-18Add generic SPI flash erase and write support to flashrom. The firstCarl-Daniel Hailfinger
chip the code was tested and verified with is the Macronix MX25L4005, but other chips should work as well. Timeouts are still hardcoded to data sheet maxima, but the status register checking code is already there. Thanks to Harald Gutmann for the initial code on which this is loosely based. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2874 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-17Some cosmetic cleanups in the flashrom code and output.Uwe Hermann
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2873 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-16Convert the existing it8716f_* functions to generic_spi_* functions byCarl-Daniel Hailfinger
applying abstraction and wrapping. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2863 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2007-10-15(forgot to add spi.c)Carl-Daniel Hailfinger
Move SPI code out of board_enable.c where it started its life. The SPI chip finding and SPI chip accessor code is moved as well. This can be split later if we feel like it. The non-use of svn cp is intentional because the only history we'd have to preserve are a few commits which were early prototypes of chip identification code. For those who intend to look at that history, they can look at board_enable.c revision 2853. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2858 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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