August 2010 - flashrom - mail.coreboot.org

External programmers
by Carl-Daniel Hailfinger Dec. 25, 2015

Dec. 25, 2015

Hi, I'm trying to find out which external programmers should be supported next. 1. There was talk of an AVR-based new programmer using the serprog protocol on IRC by someone with the nick "coldelectrons", but I have no idea if he/she is reading this mail. IMHO more hardware using the serprog protocol is always a good idea. 2. All those Willem/Sivava variants. People regularly request those, but I don't think anyone in here owns the hardware. 3. RayeR's SPIPGM. I have a preliminary patch which could work, but I don't have the hardware. Will send the patch to the list soon. 4. LPC^2, Milksop, CheapLPC and other programmers from the Xbox modding community. 5. Dozens of SPI programmer hardware projects scattered over the net. Too many to count, and I'm not sure which of them has more than one user. In general, it seems creating a new programmer hardware design is like writing IRC clients: A nice way to get started in the field. I have no problems merging flashrom support for all of them, but I won't implement support for all of them myself. Regards, Carl-Daniel -- http://www.hailfinger.org/

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[PATCH] Add git support to the Makefile
by Carl-Daniel Hailfinger Aug. 21, 2013

Aug. 21, 2013

flashrom relies on svn to export tarballs and only prints the last svn revision in the version message even if flashrom is in a git tree. Print extended version information (version, svn revision, git hash, repository URL). Allow exporting from git trees. This should make git users first-class citizens like svn users. Side note: If anyone has an idea how to make the export target more beautiful (80 column limit etc.), please tell me. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: flashrom-gitfriendly/Makefile =================================================================== --- flashrom-gitfriendly/Makefile (Revision 1145) +++ flashrom-gitfriendly/Makefile (Arbeitskopie) @@ -97,13 +97,15 @@ # of the checked out flashrom files. # Note to packagers: Any tree exported with "make export" or "make tarball" # will not require subversion. The downloadable snapshots are already exported. -SVNVERSION := $(shell LC_ALL=C svnversion -cn . 2>/dev/null | sed -e "s/.*://" -e "s/$[0-9]*$.*/\1/" | grep "[0-9]" || LC_ALL=C svn info . 2>/dev/null | awk '/^Revision:/ {print $$2 }' | grep "[0-9]" || LC_ALL=C git svn info . 2>/dev/null | awk '/^Revision:/ {print $$2 }' | grep "[0-9]" || echo unknown) +SCMVERSION := $(shell LC_ALL=C svnversion -cn . 2>/dev/null | sed -e "s/.*://" -e "s/$[0-9]*$.*/\1/" | grep "[0-9]" || LC_ALL=C svn info . 2>/dev/null | awk '/^Revision:/ {print $$2 }' | grep "[0-9]" || LC_ALL=C git svn info . 2>/dev/null | awk '/^Revision:/ {print $$2 }' | grep "[0-9]" || echo unknown) +SCMEXTVERSION := $(shell LC_ALL=C git rev-parse HEAD 2>/dev/null | sed 's/^./-\0/') +SCMURL := $(shell LC_ALL=C svn info 2>/dev/null | grep URL: | sed 's/.*URL:[[:blank:]]*//' | grep ^. || LC_ALL=C git remote show origin 2>/dev/null |grep URL: | sed 's/.*URL:[[:blank:]]*//' | grep ^. || echo unknown ) RELEASE := 0.9.2 -VERSION := $(RELEASE)-r$(SVNVERSION) +VERSION := $(RELEASE)-r$(SCMVERSION)$(SCMEXTVERSION) RELEASENAME ?= $(VERSION) -SVNDEF := -D'FLASHROM_VERSION="$(VERSION)"' +SCMDEF := -D'FLASHROM_VERSION="$(VERSION)"' -D'FLASHROM_SCMURL="$(SCMURL)"' # Always enable internal/onboard support for now. CONFIG_INTERNAL ?= yes @@ -310,7 +312,7 @@ TAROPTIONS = $(shell LC_ALL=C tar --version|grep -q GNU && echo "--owner=root --group=root") %.o: %.c .features - $(CC) -MMD $(CFLAGS) $(CPPFLAGS) $(FEATURE_CFLAGS) $(SVNDEF) -o $@ -c $< + $(CC) -MMD $(CFLAGS) $(CPPFLAGS) $(FEATURE_CFLAGS) $(SCMDEF) -o $@ -c $< # Make sure to add all names of generated binaries here. # This includes all frontends and libflashrom. @@ -420,9 +422,12 @@ export: @rm -rf $(EXPORTDIR)/flashrom-$(RELEASENAME) - @svn export -r BASE . $(EXPORTDIR)/flashrom-$(RELEASENAME) - @sed "s/^SVNVERSION.*/SVNVERSION := $(SVNVERSION)/" Makefile >$(EXPORTDIR)/flashrom-$(RELEASENAME)/Makefile - @LC_ALL=C svn log >$(EXPORTDIR)/flashrom-$(RELEASENAME)/ChangeLog + @svn export -r BASE . $(EXPORTDIR)/flashrom-$(RELEASENAME) 2>/dev/null || git checkout-index -a -f --prefix=$(EXPORTDIR)/flashrom-$(RELEASENAME)/ + @# If SCMVERSION or SCMEXTVERSION contain a slash or SCMURL contains a hash, this will explode + @sed "s/^SCMVERSION.*/SCMVERSION := $(SCMVERSION)/;s/^SCMEXTVERSION.*/SCMEXTVERSION := $(SCMEXTVERSION)/;s#^SCMURL.*#SCMURL := $(SCMURL)#" Makefile >$(EXPORTDIR)/flashrom-$(RELEASENAME)/Makefile + @# ChangeLog should be in English, but we want UTF-8 for names. + @( LC_ALL=en_US.UTF-8 svn log 2>/dev/null || LC_ALL=en_US.UTF-8 git log 2>/dev/null || echo "Unable to extract log from SCM" ) >$(EXPORTDIR)/flashrom-$(RELEASENAME)/ChangeLog + @rm -f $(EXPORTDIR)/flashrom-$(RELEASENAME)/.gitignore $(EXPORTDIR)/flashrom-$(RELEASENAME)/.gitattributes $(EXPORTDIR)/flashrom-$(RELEASENAME)/.gitmodules @echo Exported $(EXPORTDIR)/flashrom-$(RELEASENAME)/ tarball: export Index: flashrom-gitfriendly/flashrom.c =================================================================== --- flashrom-gitfriendly/flashrom.c (Revision 1145) +++ flashrom-gitfriendly/flashrom.c (Arbeitskopie) @@ -1355,6 +1355,7 @@ void print_version(void) { msg_ginfo("flashrom v%s", flashrom_version); + msg_ginfo(" from " FLASHROM_SCMURL ","); print_sysinfo(); } @@ -1362,7 +1363,6 @@ { msg_ginfo("flashrom is free software, get the source code at " "http://www.flashrom.org\n"); - msg_ginfo("\n"); } int selfcheck(void) -- http://www.hailfinger.org/

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Re: [flashrom] [coreboot] Dualbios on GA-MA770-UD3
by Carl-Daniel Hailfinger Aug. 10, 2013

Aug. 10, 2013

Hi Vadim, thanks for your mail. I have added the flashrom mailing list in CC: because we should develop a generic way to handle DualBIOS and similar techniques. On 09.04.2010 08:12, Vadim Girlin wrote: > I'm going to try coreboot on Gigabyte GA-MA770-UD3. > It's AMD 770 (RX780 / SB700). > > My motherboard supports hardware dual bios - with two chips on it. > I'm going to try flashing backup chip and boot from it. It seems to be > possible - I've tested it (flashing at least). Chips on this board could > be switched by changing bit 0 at undocumented register EF on LDN 7 of > IT8720. I can use slightly patched flashrom for accessing any chip I > want without any problems. And this is tested many times. > > My idea is to use backup chip for debugging - that always keeps my > chance to reboot from main bios chip. And removes the need for > desoldering etc. > > And second problem is that original bios is checking second chip - and > trying to recover it by flashing the bios from main chip on reboot? > rewriting coreboot. AFAICS this could be solved by including some > signatures etc. It seems to be easy to find out. May be someone is > working on this? > > BTW I can send the patch for flashrom - but I think that with > information I mentioned above somebody could make it much better than my > ugly hack. I hope the regs should be the same for all latest Gigabyte > MBs using IT8720/18 > It would be great if you could send that patch. It will help us make a flashrom design decision that works for all boards with multiple flash chips. By the way, some of us have good contacts at ITE, so we can ask ITE for details about the undocumented registers. Regards, Carl-Daniel -- http://www.hailfinger.org/

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2 flashes on SPI bus
by Andrei Dolnikov Sept. 23, 2012

Sept. 23, 2012

Hello folks, I would like to use a flashrom utility to access 2 serial flashes on the SPI bus of my x86 board, but I'm struggling with the second one. So I'm looking for any help, hints or advices which can help me to solve this issue. I have custom x86 board (Atom n450 CPU, ICH8M chipset) which have 2 serial flashes installed on it. The first one is SST25VF016B and the second one is Numonyx M45PE16. The M45PE16 is pretty the similar to the M25PE16. Both this chips are connected to the SPI bus of the ICH8M chipset, the CS (chip select) signal of the SST25VF is routed to the SPI_CS0 and the CS signal of the M45PE16 is routed to the SPI_CS1. I can successfully read, erase and write the SST flash. Trying to figure out if flashrom utility can find the second Numonyx flash I've added the proper description for it to the flashchips.c (actually I've leaved it the same as for M25PE16 but changed model_id field). Unfortunately it didn't help me at all. So I'm wondering if flashrom can't find M45PE16 flash because of cleared SPI_CS1 signal and how can I enable it? Does flashrom utility support such kind of configurations or does it simply searching for the flash on CS0? Probably some of you have some ideas on enabling SPI_CS1 or even some useful links etc. Unfortunately the official Intel ICH8M documentation looks kind of complicated and no so clear to me. I'll of course digg into it but any help, hints or advices are highly appreciated! Thanks in advance, xborodax.

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[PATCH] Add Winbond SuperI/O detection
by Carl-Daniel Hailfinger May 6, 2012

May 6, 2012

Add Winbond Super I/O detection and hook it up to the generic Super I/O detection framework. Incomplete and untested, but at least it shouldn't break anything. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: flashrom-winbond_superio_detect/flash.h =================================================================== --- flashrom-winbond_superio_detect/flash.h (Revision 1064) +++ flashrom-winbond_superio_detect/flash.h (Arbeitskopie) @@ -350,6 +350,7 @@ /* board_enable.c */ void w836xx_ext_enter(uint16_t port); void w836xx_ext_leave(uint16_t port); +struct superio probe_superio_winbond(void); uint8_t sio_read(uint16_t port, uint8_t reg); void sio_write(uint16_t port, uint8_t reg, uint8_t data); void sio_mask(uint16_t port, uint8_t reg, uint8_t data, uint8_t mask); @@ -388,7 +389,8 @@ }; extern struct superio superio; #define SUPERIO_VENDOR_NONE 0x0 -#define SUPERIO_VENDOR_ITE 0x1 +#define SUPERIO_VENDOR_WINBOND 0x1 +#define SUPERIO_VENDOR_ITE 0x2 struct pci_dev *pci_dev_find_filter(struct pci_filter filter); struct pci_dev *pci_dev_find_vendorclass(uint16_t vendor, uint16_t class); struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device); Index: flashrom-winbond_superio_detect/internal.c =================================================================== --- flashrom-winbond_superio_detect/internal.c (Revision 1064) +++ flashrom-winbond_superio_detect/internal.c (Arbeitskopie) @@ -104,12 +104,14 @@ void probe_superio(void) { - superio = probe_superio_ite(); + superio = probe_superio_winbond(); #if 0 - /* Winbond Super I/O code is not yet available. */ + /* ITE probe causes SMSC LPC47N217 to power off the serial UART. */ if (superio.vendor == SUPERIO_VENDOR_NONE) - superio = probe_superio_winbond(); + superio = probe_superio_smsc(); #endif + if (superio.vendor == SUPERIO_VENDOR_NONE) + superio = probe_superio_ite(); } #endif Index: flashrom-winbond_superio_detect/board_enable.c =================================================================== --- flashrom-winbond_superio_detect/board_enable.c (Revision 1064) +++ flashrom-winbond_superio_detect/board_enable.c (Arbeitskopie) @@ -229,22 +229,59 @@ address, but takes no effort to make sure the chip is really a Winbond Super I/O */ -static const struct winbond_chip * winbond_superio_detect(uint16_t base) +uint8_t probe_id_winbond(uint16_t port) { uint8_t chipid; + + w836xx_ext_enter(port); + chipid = sio_read(port, 0x20); + w836xx_ext_leave(port); + + return chipid; +} + +#define WINBOND_SUPERIO_PORT1 0x2e +#define WINBOND_SUPERIO_PORT2 0x4e + +struct superio probe_superio_winbond(void) +{ + struct superio ret = {}; + uint16_t winbond_ports[] = {WINBOND_SUPERIO_PORT1, WINBOND_SUPERIO_PORT2, 0}; + uint16_t *i = winbond_ports; + + ret.vendor = SUPERIO_VENDOR_WINBOND; + for (; *i; i++) { + ret.port = *i; + ret.model = probe_id_winbond(ret.port); + switch (ret.model) { + case WINBOND_W83627HF_ID: + case WINBOND_W83627EHF_ID: + case WINBOND_W83627THF_ID: + msg_pinfo("Found Winbond Super I/O, id %02hx\n", + ret.model); + return ret; + } + } + + /* No good ID found. */ + ret.vendor = SUPERIO_VENDOR_NONE; + ret.port = 0; + ret.model = 0; + return ret; +} + +static const struct winbond_chip *winbond_superio_chipdef(void) +{ const struct winbond_chip * chip = NULL; int i; - w836xx_ext_enter(base); - chipid = sio_read(base, 0x20); for (i = 0; i < ARRAY_SIZE(winbond_chips); i++) - if (winbond_chips[i].device_id == chipid) + if (winbond_chips[i].device_id == superio.model) { chip = &winbond_chips[i]; break; } - w836xx_ext_leave(base); return chip; } @@ -259,7 +296,7 @@ int port = pin / 10; int bit = pin % 10; - chip = winbond_superio_detect(base); + chip = winbond_superio_chipdef(); if (!chip) { msg_perr("\nERROR: No supported Winbond Super I/O found\n"); return -1; -- http://www.hailfinger.org/

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Re: [flashrom] Trial of ARIMA:HDAMA Motherboard
by Carl-Daniel Hailfinger Feb. 9, 2012

Feb. 9, 2012

Hi Mike, On 23.02.2010 05:45, Spangler, Mike T wrote: > I can probe with a continuity tester, but would need to know specific > pin locations to try. Do you have any generic info on doing this? Yes (well, I'd have to write up something), but the solution mentioned by Michael is way easier, so I'll wait until Michael has diagnosed the GPIO settings from the flashrom run on factory BIOS. Regards, Carl-Daniel -- "I do consider assignment statements and pointer variables to be among computer science's most valuable treasures." -- Donald E. Knuth

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AMD SB7xx/SB8xx w/IMC: enable specs
by Joshua Roys Jan. 3, 2012

Jan. 3, 2012

Hello all, The specific board this is for is the Supermicro H8DGT. Attached is only the specification, which is not guaranteed to be correct. Use with care. Also, after using this, you may want to turn off and unplug the computer for a few minutes to restore the correct operational state. The AMD SB700/710/750 Register Reference Guide (#43009) was used as a reference. Thanks, Josh

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[PATCH] internal dmi decoder
by Sean Nelson Aug. 16, 2011

Aug. 16, 2011

Here is a new version of the internal dmi decoding. To use the new decoder, the user needs to use "-p internal:dmi=new", to cross-check with the external dmidecode use "-p internal:dmi=check". Hopefully if this is comitted, it will make it easier for people to test the new internal decoder. Signed-off-by: Sean Nelson <audiohacked(a)gmail.com>

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[PATCH] Warn about unhandled one-time programmable memory
by Daniel Lenski Aug. 13, 2011

Aug. 13, 2011

Added feature bit FEATURE_UNHANDLED_OTP, and a warning for chips like AMIC A25L032 and A25LQ032 which contain small regions of one-time programmable memory that flashrom can neither read, nor write, nor erase. Signed-off-by: Daniel Lenski <dlenski(a)gmail.com> --- flash.h | 1 + flashchips.c | 2 ++ flashrom.c | 8 ++++++++ 3 files changed, 11 insertions(+), 0 deletions(-) diff --git a/flash.h b/flash.h index 6f0d7c0..6db4c48 100644 --- a/flash.h +++ b/flash.h @@ -85,6 +85,7 @@ enum chipbustype { #define FEATURE_ADDR_SHIFTED (1 << 5) #define FEATURE_WRSR_EWSR (1 << 6) #define FEATURE_WRSR_WREN (1 << 7) +#define FEATURE_UNHANDLED_OTP (1 << 8) #define FEATURE_WRSR_EITHER (FEATURE_WRSR_EWSR | FEATURE_WRSR_WREN) struct flashchip { diff --git a/flashchips.c b/flashchips.c index efd7599..07b9635 100644 --- a/flashchips.c +++ b/flashchips.c @@ -817,6 +817,7 @@ struct flashchip flashchips[] = { .model_id = AMIC_A25L032, .total_size = 4096, .page_size = 256, + .feature_bits = FEATURE_UNHANDLED_OTP, .tested = TEST_UNTESTED, .probe = probe_spi_rdid, .probe_timing = TIMING_ZERO, @@ -852,6 +853,7 @@ struct flashchip flashchips[] = { .model_id = AMIC_A25LQ032, .total_size = 4096, .page_size = 256, + .feature_bits = FEATURE_UNHANDLED_OTP, .tested = TEST_UNTESTED, .probe = probe_spi_rdid, .probe_timing = TIMING_ZERO, diff --git a/flashrom.c b/flashrom.c index 2690151..a7471a6 100644 --- a/flashrom.c +++ b/flashrom.c @@ -1434,6 +1434,14 @@ void check_chip_supported(struct flashchip *flash) "Thanks for your help!\n" "===\n"); } + if (flash->feature_bits & FEATURE_UNHANDLED_OTP) { + msg_cinfo("===\n" + "This flash part contains a region of one-time programmable memory\n" + "which flashrom cannot read, and may never be able to write or\n" + "erase. flashrom may not be able to completely backup and rewrite\n" + "the contents of this chip.\n" + "===\n"); + } } int main(int argc, char *argv[]) -- 1.7.0.4

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[PATCH] add support for AT49F040
by David Borg Aug. 10, 2011

Aug. 10, 2011

Hi, I was adding support for the AT49F040 parallel flash chip, but have some questions. This chip has a boot block which once locked cannot be erased / rewritten. Should I add erase functions for both cases? Currently the erase function handles unlocked chips only. In addition, the datasheet specifies no command timings, is the timing something I can infer from the read / program cycle characteristics tables? Regards, David Signed-off-by: David Borg <borg.db(a)gmail.com> datasheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/56184/ATMEL/AT49F040.html Index: flashchips.c =================================================================== --- flashchips.c (revision 1145) +++ flashchips.c (working copy) @@ -1985,6 +1985,29 @@ }, { + .vendor = "Atmel", + .name = "AT49F040", + .bustype = CHIP_BUSTYPE_PARALLEL, + .manufacture_id = ATMEL_ID, + .model_id = AT_49F040, + .total_size = 512, + .page_size = 512, + .feature_bits = FEATURE_EITHER_RESET | FEATURE_ADDR_FULL, + .tested = TEST_UNTESTED, + .probe = probe_jedec, + .probe_timing = TIMING_ZERO, /* Datasheet has no timing info specified */ + .block_erasers = + { + { + .eraseblocks = { {512 * 1024, 1} }, + .block_erase = erase_chip_block_jedec, + } + }, + .write = write_jedec_1, + .read = read_memmapped, + }, + + { .vendor = "EMST", .name = "F49B002UA", .bustype = CHIP_BUSTYPE_PARALLEL, Index: flashchips.h =================================================================== --- flashchips.h (revision 1145) +++ flashchips.h (working copy) @@ -174,6 +174,7 @@ #define AT_49F020 0x0B #define AT_49F002N 0x07 /* for AT49F002(N) */ #define AT_49F002NT 0x08 /* for AT49F002(N)T */ +#define AT_49F040 0x13 #define CATALYST_ID 0x31 /* Catalyst */

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