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* Kill global variables, constants and functions if local scope sufficesCarl-Daniel Hailfinger2010-07-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Constify variables where possible. Initialize programmer-related variables explicitly in programmer_init to allow running programmer_init from a clean state after programmer_shutdown. Prohibit registering programmer shutdown functions before init or after shutdown. Kill some dead code. Rename global variables with namespace-polluting names. Use a previously unused locking helper function in sst49lfxxxc.c. This is needed for libflashrom. Effects on the binary size of flashrom are minimal (300 bytes shrinkage), but the data section shrinks by 4384 bytes, and that's a good thing if flashrom is operating in constrained envionments. Corresponding to flashrom svn r1068. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
* Kill dead pm49fl00x.c functionsSean Nelson2010-03-161-69/+0
| | | | | | | Corresponding to flashrom svn r938. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Convert the remaining references to *_49fl00xSean Nelson2010-02-271-0/+6
| | | | | | | | | | | | | Now the only remaining and used function in pm49fl00x.c is unlock_49fl00x. Also: - Add missing unlock to AMIC A49LF040A. - Add lock_49fl00x function. Corresponding to flashrom svn r917. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Split spi.c into programmer and chip code Remove chipdriver.h include from ↵Sean Nelson2010-02-261-0/+1
| | | | | | | | | | | | | | | | | | | flash.h Some of the spi programmer drivers required chipdrivers.h, needs fixing later: it87spi.c ichspi.c sb600spi.c wbsio_spi.c buspirate_spi.c ft2232spi.c bitbang_spi.c dediprog.c Corresponding to flashrom svn r914. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Here's a very quick patch to fix the missing unlock codeSean Nelson2010-02-191-0/+6
| | | | | | | | | | | | | | | | | | | | | | | Fixes missing unlock for certain chips: * unlock_49lf00x * Pm49fl002 * Pm49fl004 * unlock_49flxxxc * SST49LF160C * unlock_winbond_fwhub * W39V080FA * W39V080FA (dual mode) Fixes missing printlock for certain chip: * printlock_w39v040c * W39V040C Corresponding to flashrom svn r907. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
* Use the register mapping feature bitCarl-Daniel Hailfinger2010-01-091-10/+0
| | | | | | | | | | | | | | | | | | | All functions which just call probe_jedec and then map flash registers are replaced by probe_jedec. All functions which call probe_jedec, map flash registers and do something else can at least eliminate mapping flash registers. Fix logic inversion in probe_jedec to map flash registers on success instead of on failure. Change a few TIMING_IGNORED to TIMING_FIXME where probe_jedec is used. Total savings: One probe function simplified, three probe functions eliminated. Corresponding to flashrom svn r839. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de> Acked-by: Sean Nelson <audiohacked@gmail.com>
* Generify jedec functions by introducing an address maskSean Nelson2010-01-041-2/+2
| | | | | | | | | | | | | | | | | The patch converts jedec functions into mask-based generics which can be used for many chip provided the only changes are the addresses are converted from 0x5555/0x2AAA to 0x555/0x2AA or similar. The patch mostly changes jedec.c, but a few other files are changed because they use the jedec functions within their own functions. The patch also adds a copyright line to flashchips.c because of my recent work in converting AMD and Atmel chips to use struct erase_block. Corresponding to flashrom svn r828. Signed-off-by: Sean Nelson <audiohacked@gmail.com> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
* Kill obsolete exclude range featureCarl-Daniel Hailfinger2009-06-191-8/+0
| | | | | | | | | | | It is ignored by almost every chip and does not work for external flashers. Plus, it gives the user a false sense of security in some corner cases. Corresponding to flashrom svn r608. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
* Flashrom only checks for very few chips if the erase workedCarl-Daniel Hailfinger2009-06-151-3/+8
| | | | | | | | | | | | | | | | | | | And even when it checks if the erase worked, the result of that check is often ignored. Convert all erase functions and actually check return codes almost everywhere. Check inside all erase_* routines if erase worked, not outside. erase_sector_jedec and erase_block_jedec have changed prototypes to enable erase checking. Uwe successfully tested LPC on an CK804 box and SPI on some SB600 box. Corresponding to flashrom svn r595. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Signed-off-by: Urja Rannikko <urjaman@gmail.com> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
* Drop unused/duplicated #includes and some dead codeUwe Hermann2009-05-161-1/+0
| | | | | | | | | Build-tested on 32bit x86. Corresponding to flashrom svn r521. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
* Introduce a type "chipaddr" to abstract the offsets within flash regionsCarl-Daniel Hailfinger2009-05-161-3/+3
| | | | | | | | | | | | | | | | | | | Use chipaddr instead of volatile uint8_t * because when we access chips in external flashers, they are not accessed via pointers at all. Benefits: This allows us to differentiate between volatile machine memory accesses and flash chip accesses. It also enforces usage of chip_{read,write}[bwl] to access flash chips, so nobody will unintentionally use pointers to access chips anymore. Some unneeded casts are removed as well. Grepping for chip operations and machine memory operations doesn't yield any false positives anymore. Compile tested on 32 bit and 64 bit Linux. Corresponding to flashrom svn r519. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
* FreeBSD definitions of (read|write)[bwl] collide with our ownCarl-Daniel Hailfinger2009-03-061-1/+1
| | | | | | | | | | | | Before we attempt trickery, we can simply rename the accessor functions. Patch created with the help of Coccinelle. Corresponding to flashrom svn r420 and coreboot v2 svn r3984. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Idwer Vollering <idwer_v@hotmail.com> Acked-by: Patrick Georgi <patrick@georgi-clan.de>
* Use helper functions to access flash chipsCarl-Daniel Hailfinger2009-03-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now we perform direct pointer manipulation without any abstraction to read from and write to memory mapped flash chips. That makes it impossible to drive any flasher which does not mmap the whole chip. Using helper functions readb() and writeb() allows a driver for external flash programmers like Paraflasher to replace readb and writeb with calls to its own chip access routines. This patch has the additional advantage of removing lots of unnecessary casts to volatile uint8_t * and now-superfluous parentheses which caused poor readability. I used the semantic patcher Coccinelle to create this patch. The semantic patch follows: @@ expression a; typedef uint8_t; volatile uint8_t *b; @@ - *(b) = (a); + writeb(a, b); @@ volatile uint8_t *b; @@ - *(b) + readb(b) @@ type T; T b; @@ ( readb | writeb ) (..., - (T) - (b) + b ) In contrast to a sed script, the semantic patch performs type checking before converting anything. Tested-by: Joe Julian Corresponding to flashrom svn r418 and coreboot v2 svn r3971. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: FENG Yu Ning <fengyuning1984@gmail.com>
* Coding-style fixes for flashrom, partly indent-aidedUwe Hermann2008-10-181-10/+16
| | | | | | | Corresponding to flashrom svn r326 and coreboot v2 svn r3669. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
* Support Pm49FL004/2 Block Locking RegistersNikolay Petukhov2008-05-171-0/+114
The PMC chips understand both LPC and FWH flash commands. When in FWH mode (MSR_DIVIL_BALL_OPT(0x51400015) = 0x00000f7d on 5536 boards) the Block Locking Registers by default lock the flash chip for write and erase - in addition to any chipset write protection. This patch adds unlock operations before Pm49FL004/2 write and erase, and it includes an svn mv pm49fl004.c pm49fl00x.c Thanks go to Nikolay for this patch. Corresponding to flashrom svn r243 and coreboot v2 svn r3332. Signed-off-by: Nikolay Petukhov <nikolay.petukhov@gmail.com> Signed-off-by: Peter Stuge <peter@stuge.se> Acked-by: Bari Ari <bari@onelabs.com>
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