flashrom April 2010

flashrom@flashrom.org

55 participants
102 discussions

flashrom in a Toshiba notebook
by Luciano Diamand 30 Apr '10

30 Apr '10

Hi, I have a Toshiba Satellite A100 notebook and when I run flashrom with the following command line: sudo flashrom I get the verbose of the chipset and bios found, but a second later it shuts down When I use the following command line: sudo flashrom -f -r a100.bin -c SST39VF080 it prints the message but in this case it does not power off. flashrom v0.9.1-r706 No coreboot table found. Found chipset "Intel ICH6-M", enabling flash write... OK. This chipset supports the following protocols: Non-SPI. Calibrating delay loop... OK. No EEPROM/flash device found. Force read (-f -r -c) requested, forcing chip probe success: Found chip "SST SST39VF080" (1024 KB, Parallel) at physical address 0xfff00000. Please note that forced reads most likely contain garbage. Reading flash... done. I would like to report that the bios file read with flashrom was the same that I write with the program provided by Toshiba. Thank you. Regards, Luciano Diamand

1 0

GA-6BXE works with out a hitch
by Anders Jenbo 29 Apr '10

29 Apr '10

http://www.gigabyte.com.tw/Products/Motherboard/Products_Spec.aspx?ProductI… -Anders

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[RFC] Kill --force
by Carl-Daniel Hailfinger 28 Apr '10

28 Apr '10

--force may have been a good idea back when only developers were using flashrom, but over the last few months I've seen too many people who incorrectly believed that --force would solve anything. One of the problems is that --force has multiple meanings: - Force chip read by faking probe success. - Force writing even if cbtable tells us that this is the wrong image for this board. - Force chip access even if the chip is bigger than max decode size for the flash bus. - Force erase even if erase is known bad. - Force write even if write is known bad. We should kill --force and replace it with explicit --force-erase or --force-cbtable-mismatch or similar stuff, maybe -p internal:ignore_cbtable. First step: - Remove any suggestions to use --force for probe/read from flashrom output. - Don't talk about "success" or "Found chip" if the chip is forced. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: flashrom-forced_stupid/cli_classic.c =================================================================== --- flashrom-forced_stupid/cli_classic.c (Revision 992) +++ flashrom-forced_stupid/cli_classic.c (Arbeitskopie) @@ -303,6 +303,18 @@ cli_classic_usage(argv[0]); } + if (chip_to_probe) { + for (flash = flashchips; flash && flash->name; flash++) + if (!strcmp(flash->name, chip_to_probe)) + break; + if (!flash || !flash->name) { + fprintf(stderr, "Error: Unknown chip specified.\n"); + exit(1); + } + /* Clean up after the check. */ + flash = NULL; + } + if (programmer_init()) { fprintf(stderr, "Error: Programmer initialization failed.\n"); exit(1); @@ -329,14 +341,10 @@ } else if (!flashes[0]) { printf("No EEPROM/flash device found.\n"); if (!force || !chip_to_probe) { - printf("If you know which flash chip you have, and if this version of flashrom\n"); - printf("supports a similar flash chip, you can try to force read your chip. Run:\n"); - printf("flashrom -f -r -c similar_supported_flash_chip filename\n"); - printf("\n"); - printf("Note: flashrom can never write when the flash chip isn't found automatically.\n"); + printf("Note: flashrom can never write if the flash chip isn't found automatically.\n"); } if (force && read_it && chip_to_probe) { - printf("Force read (-f -r -c) requested, forcing chip probe success:\n"); + printf("Force read (-f -r -c) requested, pretending the chip is there:\n"); flashes[0] = probe_flash(flashchips, 1); if (!flashes[0]) { printf("flashrom does not support a flash chip named '%s'.\n", chip_to_probe); Index: flashrom-forced_stupid/flashrom.c =================================================================== --- flashrom-forced_stupid/flashrom.c (Revision 992) +++ flashrom-forced_stupid/flashrom.c (Arbeitskopie) @@ -924,7 +924,8 @@ if (!flash || !flash->name) return NULL; - printf("Found chip \"%s %s\" (%d KB, %s) at physical address 0x%lx.\n", + printf("%s chip \"%s %s\" (%d KB, %s) at physical address 0x%lx.\n", + force ? "Assuming" : "Found", flash->vendor, flash->name, flash->total_size, flashbuses_to_text(flash->bustype), base); -- http://www.hailfinger.org/

3 10

[commit] r996 - trunk
by repository service 28 Apr '10

28 Apr '10

Author: hailfinger Date: Wed Apr 28 17:22:14 2010 New Revision: 996 URL: http://flashrom.org/trac/coreboot/changeset/996 Log: --force may have been a good idea back when only developers were using flashrom, but over the last few months we've seen too many people who incorrectly believed that --force would solve anything. One of the problems is that --force had multiple meanings: - Force chip read by faking probe success. - Force chip access even if the chip is bigger than max decode size for the flash bus. - Force erase even if erase is known bad. - Force write even if write is known bad. - Force writing even if cbtable tells us that this is the wrong image for this board. This patch cleans up --force usage: - Remove any suggestions to use --force for probe/read from flashrom output. - Don't talk about "success" or "Found chip" if the chip is forced. - Add a new internal programmer parameter boardmismatch=force. This overrides any mismatch detection from cbtable/image comparisons. - Add a new internal programmer parameter laptop=force_I_want_a_brick. - Adjust the documentation for --force. - Clean up the man page a bit whereever it talks about --force or laptops. Additional changes in this patch: - Add warnings about laptops to the documentation. - Abort if a laptop is detected. Can be overridden with the programmer parameter mentioned above. - Add "Portable" to the list of DMI strings indicating laptops. - Check if a chip specified with -c is known to flashrom. - Programmer parameter reliability and consistency fixes. - More paranoid self-checks. - Improve documentation. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Acked-by: Michael Karcher <flashrom(a)mkarcher.dialup.fu-berlin.de> Modified: trunk/README trunk/cli_classic.c trunk/dmi.c trunk/flash.h trunk/flashrom.8 trunk/flashrom.c trunk/internal.c trunk/layout.c Modified: trunk/README ============================================================================== --- trunk/README Mon Apr 26 00:47:50 2010 (r995) +++ trunk/README Wed Apr 28 17:22:14 2010 (r996) @@ -11,6 +11,12 @@ It supports a wide range of DIP32, PLCC32, DIP8, SO8/SOIC8, TSOP32, and TSOP40 chips, which use various protocols such as LPC, FWH, parallel flash, or SPI. +Do not use flashrom on laptops! The embedded controller (EC) present in many +laptops interacts badly with any flash attempts and can brick your laptop +permanently. + +Please make a backup of your flash chip before writing to it. + Please see the flashrom(8) manpage. Modified: trunk/cli_classic.c ============================================================================== --- trunk/cli_classic.c Mon Apr 26 00:47:50 2010 (r995) +++ trunk/cli_classic.c Wed Apr 28 17:22:14 2010 (r996) @@ -248,6 +248,10 @@ switch (optarg[namelen]) { case ':': programmer_param = strdup(optarg + namelen + 1); + if (!strlen(programmer_param)) { + free(programmer_param); + programmer_param = NULL; + } break; case '\0': break; @@ -303,6 +307,21 @@ cli_classic_usage(argv[0]); } + if (chip_to_probe) { + for (flash = flashchips; flash && flash->name; flash++) + if (!strcmp(flash->name, chip_to_probe)) + break; + if (!flash || !flash->name) { + fprintf(stderr, "Error: Unknown chip '%s' specified.\n", + chip_to_probe); + printf("Run flashrom -L to view the hardware supported " + "in this flashrom version.\n"); + exit(1); + } + /* Clean up after the check. */ + flash = NULL; + } + if (programmer_init()) { fprintf(stderr, "Error: Programmer initialization failed.\n"); exit(1); @@ -329,18 +348,14 @@ } else if (!flashes[0]) { printf("No EEPROM/flash device found.\n"); if (!force || !chip_to_probe) { - printf("If you know which flash chip you have, and if this version of flashrom\n"); - printf("supports a similar flash chip, you can try to force read your chip. Run:\n"); - printf("flashrom -f -r -c similar_supported_flash_chip filename\n"); - printf("\n"); - printf("Note: flashrom can never write when the flash chip isn't found automatically.\n"); + printf("Note: flashrom can never write if the flash chip isn't found automatically.\n"); } if (force && read_it && chip_to_probe) { - printf("Force read (-f -r -c) requested, forcing chip probe success:\n"); + printf("Force read (-f -r -c) requested, pretending the chip is there:\n"); flashes[0] = probe_flash(flashchips, 1); if (!flashes[0]) { - printf("flashrom does not support a flash chip named '%s'.\n", chip_to_probe); - printf("Run flashrom -L to view the hardware supported in this flashrom version.\n"); + printf("Probing for flash chip '%s' failed.\n", chip_to_probe); + programmer_shutdown(); exit(1); } printf("Please note that forced reads most likely contain garbage.\n"); Modified: trunk/dmi.c ============================================================================== --- trunk/dmi.c Mon Apr 26 00:47:50 2010 (r995) +++ trunk/dmi.c Wed Apr 28 17:22:14 2010 (r996) @@ -102,7 +102,8 @@ } chassis_type = get_dmi_string("chassis-type"); - if (chassis_type && !strcmp(chassis_type, "Notebook")) { + if (chassis_type && (!strcmp(chassis_type, "Notebook") || + !strcmp(chassis_type, "Portable"))) { printf_debug("Laptop detected via DMI\n"); is_laptop = 1; } Modified: trunk/flash.h ============================================================================== --- trunk/flash.h Mon Apr 26 00:47:50 2010 (r995) +++ trunk/flash.h Wed Apr 28 17:22:14 2010 (r996) @@ -385,6 +385,7 @@ #if INTERNAL_SUPPORT == 1 extern int is_laptop; extern int force_boardenable; +extern int force_boardmismatch; void probe_superio(void); int internal_init(void); int internal_shutdown(void); Modified: trunk/flashrom.8 ============================================================================== --- trunk/flashrom.8 Mon Apr 26 00:47:50 2010 (r995) +++ trunk/flashrom.8 Wed Apr 28 17:22:14 2010 (r996) @@ -61,7 +61,10 @@ More verbose output. .TP .B "\-c, \-\-chip" <chipname> -Probe only for specified flash ROM chip. +Probe only for specified flash ROM chip. This option takes the chip name as +printed by +.B "flashrom \-L" +without the vendor name. Please note that the chip name is case sensitive. .TP .B "\-m, \-\-mainboard" <[vendor:]part> Override mainboard settings. @@ -77,11 +80,16 @@ coreboot table is found. .TP .B "\-f, \-\-force" -Force write without checking whether the ROM image file is really meant -to be used on this board. +Force one or more of the following actions: .sp -Note: This check only works while coreboot is running, and only for those -boards where the coreboot code supports it. +* Force chip read and pretend the chip is there. +.sp +* Force chip access even if the chip is bigger than max decode size for\ + the flash bus. +.sp +* Force erase even if erase is known bad. +.sp +* Force write even if write is known bad. .TP .B "\-l, \-\-layout <file>" Read ROM layout from @@ -135,7 +143,7 @@ but outputs the supported hardware in MediaWiki syntax, so that it can be easily pasted into the wiki page at http://www.flashrom.org/. .TP -.B "\-p, \-\-programmer <name>[:parameters]" +.B "\-p, \-\-programmer <name>[:parameter[,parameter[,parameter]]]" Specify the programmer device. Currently supported are: .sp .BR "* internal" " (default, for in-system flashing in the mainboard)" @@ -220,6 +228,13 @@ enable is going to fail. In any case (success or failure), please report to the flashrom mailing list, see below. .sp +On systems running coreboot, flashrom checks whether the desired image matches +your mainboard. This needs some special board ID to be present in the image. +If flashrom detects that the image you want to write and the current board +do not match, it will refuse to write the image unless you specify +.sp +.B "flashrom -p internal:boardmismatch=force" +.sp If your mainboard uses an ITE IT87 series Super I/O for LPC<->SPI flash bus translation, flashrom should autodetect that configuration. You can use .B "flashrom -p internal:it87spiport=portnum" @@ -228,6 +243,24 @@ programmer section to use a non-default port for controlling the IT87 series Super I/O. In the unlikely case flashrom doesn't detect an active IT87 LPC<->SPI bridge, you can try to force recognition by using the it87spi programmer. +.sp +Using flashrom on laptops is dangerous and may easily make your hardware +unusable (see also the BUGS section). The embedded controller (EC) in these +machines often interacts badly with flashing. http://www.flashrom.org/Laptops +has more information. If flash is shared with the EC, erase is guaranteed to +brick your laptop and write is very likely to brick your laptop. +Chip read and probe may irritate your EC and cause fan failure, backlight +failure, sudden poweroff, and other nasty effects. +flashrom will attempt to detect laptops and abort immediately for safety +reasons. +If you want to proceed anyway at your own risk, use +.sp +.B "flashrom -p internal:laptop=force_I_want_a_brick" +.sp +You have been warned. +.sp +We will not help you if you force flashing on a laptop because this is a really +dumb idea. .TP .BR "dummy " programmer An optional parameter specifies the bus types it @@ -315,8 +348,14 @@ .SH BUGS Please report any bugs at .BR http://www.flashrom.org/trac/flashrom/newticket "," -or on the flashrom mailing list -.RB "(" http://www.flashrom.org/mailman/listinfo/flashrom ")." +or on the flashrom mailing list at +.BR http://www.flashrom.org/mailman/listinfo/flashrom "." +.sp +Using flashrom on laptops is dangerous and may easily make your hardware +unusable unless you can desolder the flash chip and have a full flash chip +backup. This is caused by the embedded controller (EC) present in many laptops, +which interacts badly with any flash attempts. This is a hardware limitation +and flashrom will attempt to detect it and abort immediately for safety reasons. .SH LICENCE .B flashrom is covered by the GNU General Public License (GPL), version 2. Some files are Modified: trunk/flashrom.c ============================================================================== --- trunk/flashrom.c Mon Apr 26 00:47:50 2010 (r995) +++ trunk/flashrom.c Wed Apr 28 17:22:14 2010 (r996) @@ -488,7 +488,17 @@ char *param_pos, *rest, *tmp; char *dev = NULL; int devlen; + int needlelen; + needlelen = strlen(needle); + if (!needlelen) { + msg_gerr("%s: empty needle! Please report a bug at " + "flashrom(a)flashrom.org\n", __func__); + return NULL; + } + /* No programmer parameters given. */ + if (*haystack == NULL) + return NULL; param_pos = strstr(*haystack, needle); do { if (!param_pos) @@ -924,7 +934,8 @@ if (!flash || !flash->name) return NULL; - printf("Found chip \"%s %s\" (%d KB, %s) at physical address 0x%lx.\n", + printf("%s chip \"%s %s\" (%d KB, %s) at physical address 0x%lx.\n", + force ? "Assuming" : "Found", flash->vendor, flash->name, flash->total_size, flashbuses_to_text(flash->bustype), base); Modified: trunk/internal.c ============================================================================== --- trunk/internal.c Mon Apr 26 00:47:50 2010 (r995) +++ trunk/internal.c Wed Apr 28 17:22:14 2010 (r996) @@ -101,6 +101,7 @@ #if INTERNAL_SUPPORT == 1 struct superio superio = {}; int force_boardenable = 0; +int force_boardmismatch = 0; void probe_superio(void) { @@ -117,26 +118,42 @@ int internal_init(void) { int ret = 0; + int force_laptop = 0; + char *arg; - if (programmer_param && !strlen(programmer_param)) { - free(programmer_param); - programmer_param = NULL; + arg = extract_param(&programmer_param, "boardenable=", ",:"); + if (arg && !strcmp(arg,"force")) { + force_boardenable = 1; + } else if (arg && !strlen(arg)) { + msg_perr("Missing argument for boardenable.\n"); + } else if (arg) { + msg_perr("Unknown argument for boardenable: %s\n", arg); + exit(1); } - if (programmer_param) { - char *arg; - arg = extract_param(&programmer_param, "boardenable=", ",:"); - if (arg && !strcmp(arg,"force")) - force_boardenable = 1; - else if (arg) - msg_perr("Unknown argument for boardenable: %s\n", arg); - free(arg); - - if (strlen(programmer_param)) - msg_perr("Unhandled programmer parameters: %s\n", - programmer_param); - free(programmer_param); - programmer_param = NULL; + free(arg); + + arg = extract_param(&programmer_param, "boardmismatch=", ",:"); + if (arg && !strcmp(arg,"force")) { + force_boardmismatch = 1; + } else if (arg && !strlen(arg)) { + msg_perr("Missing argument for boardmismatch.\n"); + } else if (arg) { + msg_perr("Unknown argument for boardmismatch: %s\n", arg); + exit(1); + } + free(arg); + + arg = extract_param(&programmer_param, "laptop=", ",:"); + if (arg && !strcmp(arg,"force_I_want_a_brick")) { + force_laptop = 1; + } else if (arg && !strlen(arg)) { + msg_perr("Missing argument for laptop.\n"); + } else if (arg) { + msg_perr("Unknown argument for laptop: %s\n", arg); + exit(1); } + free(arg); + get_io_perms(); /* Initialize PCI access for flash enables */ @@ -155,22 +172,35 @@ probe_superio(); /* Warn if a laptop is detected. */ - if (is_laptop) - printf("========================================================================\n" - "WARNING! You seem to be running flashrom on a laptop.\n" - "Laptops, notebooks and netbooks are difficult to support and we recommend\n" - "to use the vendor flashing utility. The embedded controller (EC) in these\n" - "machines often interacts badly with flashing.\n" - "See http://www.flashrom.org/Laptops for details.\n" - "========================================================================\n"); + if (is_laptop) { + msg_perr("========================================================================\n" + "WARNING! You seem to be running flashrom on a laptop.\n" + "Laptops, notebooks and netbooks are difficult to support and we recommend\n" + "to use the vendor flashing utility. The embedded controller (EC) in these\n" + "machines often interacts badly with flashing.\n" + "See http://www.flashrom.org/Laptops for details.\n\n" + "If flash is shared with the EC, erase is guaranteed to brick your laptop\n" + "and write may brick your laptop.\n" + "Read and probe may irritate your EC and cause fan failure, backlight\n" + "failure and sudden poweroff.\n" + "You have been warned.\n" + "========================================================================\n"); + if (force_laptop) { + msg_perr("Proceeding anyway because user specified " + "laptop=force_I_want_a_brick\n"); + } else { + msg_perr("Aborting.\n"); + exit(1); + } + } /* try to enable it. Failure IS an option, since not all motherboards * really need this to be done, etc., etc. */ ret = chipset_flash_enable(); if (ret == -2) { - printf("WARNING: No chipset found. Flash detection " - "will most likely fail.\n"); + msg_perr("WARNING: No chipset found. Flash detection " + "will most likely fail.\n"); } /* Probe for IT87* LPC->SPI translation unconditionally. */ @@ -182,7 +212,7 @@ * The error code might have been a warning only. * Besides that, we don't check the board enable return code either. */ - return 0; + return 0; } int internal_shutdown(void) Modified: trunk/layout.c ============================================================================== --- trunk/layout.c Mon Apr 26 00:47:50 2010 (r995) +++ trunk/layout.c Wed Apr 28 17:22:14 2010 (r996) @@ -111,14 +111,15 @@ !strcasecmp(mainboard_part, lb_part)) { printf_debug("This firmware image matches this mainboard.\n"); } else { - if (force) { + if (force_boardmismatch) { printf("WARNING: This firmware image does not " "seem to fit to this machine - forcing it.\n"); } else { printf("ERROR: Your firmware image (%s:%s) does not " "appear to\n be correct for the detected " - "mainboard (%s:%s)\n\nOverride with --force if you " - "are absolutely sure that you\nare using a correct " + "mainboard (%s:%s)\n\nOverride with -p internal:" + "boardmismatch=force if you are absolutely sure " + "that\nyou are using a correct " "image for this mainboard or override\nthe detected " "values with --mainboard <vendor>:<mainboard>.\n\n", mainboard_vendor, mainboard_part, lb_vendor,

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[feature-request] skip the unwanted sections in ROM layout
by Water Chen 27 Apr '10

27 Apr '10

Hi flashrom designers, >From the handle_romentries() function, I know the current design for "--layout" and "--image" is to read the unwanted sections from the flashchip to a buffer and then write the whole buffer back to the flashchip. For some reasons, I don't want to touch the unwanted sections in the flashchip. Can flashrom just skip them? My platform is "Intel ICH10R" and "Atmel AT25DF321". Thank you. Water

2 2

board enable for Sun Fire v40z
by Mark Morschhäuser 27 Apr '10

27 Apr '10

Hi, as we found out in IRC yesterday, flashrom needs boardenable code to function for the Sun Fire v40z mainboard. I attached the output of # flashrom -V &> flashrom.txt # superiotool -deV &> superiotool.txt # lspci -nnvvvxxx &> lspci.tx flashrom and superiotool were checked out from svn. The official Bios download is a bit tricky as you need a Sun Premium account to access it :-/ Anyway, here is the link: http://www.sun.com/servers/entry/v40z/downloads.jsp If you don't have such an account and need the Bios, send me a note. Documentation however is freely available under [1] (the "Sun Fire v40z Server Architectural Whitepaper" may be of interest) and [2] (see "Full Components List" and "Related Documentation"). If you need more information or help, just ask me. Greetings, Mark [1] http://www.sun.com/servers/entry/v40z/specs.xml [2] http://sunsolve.sun.com/handbook_pub/validateUser.do?target=Systems/SunFire…

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MCP SPI Gigabyte GA-M56S-S3 (MCP65)
by Mark Morschhäuser 27 Apr '10

27 Apr '10

Hello, I am using a Gigabyte GA-M56S-S3 mainboard, read your random notes about MCP SPI support and want to help you with flashrom/lspci/superiotool output I made (with recend svn versions). I attached the output of # flashrom -V &> flashrom.txt # superiotool -deV &> superiotool.txt # lspci -nnvvvxxx &> lspci.txt Link to official BIOS Download: http://www.gigabyte.de/Support/Motherboard/BIOS_Model.aspx?ProductID=2563&v… Greetings, Mark

1 0

[commit] r995 - trunk
by repository service 26 Apr '10

26 Apr '10

Author: ruik Date: Mon Apr 26 00:47:50 2010 New Revision: 995 URL: http://flashrom.org/trac/coreboot/changeset/995 Log: Fix the DOS port. Now the DS selector limit is set to 4GB and all mmio accesses goes through DS, the 1:1 mapping is fixed so the _DS base is taken onto account. Plus is that the hwaccess.c needs no change and memcpy etc can be used on mmaped space. Signed-off-by: Rudolf Marek <r.marek(a)assembler.cz> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Modified: trunk/Makefile trunk/hwaccess.c trunk/physmap.c Modified: trunk/Makefile ============================================================================== --- trunk/Makefile Tue Apr 20 21:34:31 2010 (r994) +++ trunk/Makefile Mon Apr 26 00:47:50 2010 (r995) @@ -202,12 +202,8 @@ endif ifeq ($(NEED_PCI), yes) -ifneq ($(OS_ARCH), DOS) -# FIXME This workaround is needed until libpci detection can handle -# cross-compiling for DOS. CHECK_LIBPCI = yes endif -endif ifeq ($(NEED_PCI), yes) FEATURE_CFLAGS += -D'NEED_PCI=1' Modified: trunk/hwaccess.c ============================================================================== --- trunk/hwaccess.c Tue Apr 20 21:34:31 2010 (r994) +++ trunk/hwaccess.c Mon Apr 26 00:47:50 2010 (r995) @@ -54,44 +54,6 @@ #endif } -#ifdef __DJGPP__ - -extern unsigned short segFS; - -#include <sys/farptr.h> - -void mmio_writeb(uint8_t val, void *addr) -{ - _farpokeb(segFS, (unsigned long) addr, val); -} - -void mmio_writew(uint16_t val, void *addr) -{ - _farpokew(segFS, (unsigned long) addr, val); -} - -void mmio_writel(uint32_t val, void *addr) -{ - _farpokel(segFS, (unsigned long) addr, val); -} - -uint8_t mmio_readb(void *addr) -{ - return _farpeekb(segFS, (unsigned long) addr); -} - -uint16_t mmio_readw(void *addr) -{ - return _farpeekw(segFS, (unsigned long) addr); -} - -uint32_t mmio_readl(void *addr) -{ - return _farpeekl(segFS, (unsigned long) addr); -} - -#else - void mmio_writeb(uint8_t val, void *addr) { *(volatile uint8_t *) addr = val; @@ -121,4 +83,3 @@ { return *(volatile uint32_t *) addr; } -#endif Modified: trunk/physmap.c ============================================================================== --- trunk/physmap.c Tue Apr 20 21:34:31 2010 (r994) +++ trunk/physmap.c Mon Apr 26 00:47:50 2010 (r995) @@ -30,66 +30,67 @@ #ifdef __DJGPP__ #include <dpmi.h> +#include <sys/nearptr.h> #define MEM_DEV "dpmi" -unsigned short segFS = 0; +static void *realmem_map; -void *sys_physmap(unsigned long phys_addr, size_t len) +static void *map_first_meg(unsigned long phys_addr, size_t len) { - int ret; - __dpmi_meminfo mi; - if (segFS == 0) { - segFS = __dpmi_allocate_ldt_descriptors (1); - __dpmi_set_segment_base_address (segFS, 0x0); - __dpmi_set_segment_limit (segFS, 0xffffffff); + if (realmem_map) { + return realmem_map + phys_addr; } - mi.address = phys_addr; - mi.size = len; - ret = __dpmi_physical_address_mapping (&mi); + realmem_map = valloc(1024 * 1024); - if (ret != 0) { + if (!realmem_map) { return NULL; } - return (void *) mi.address; -} - -#define sys_physmap_rw_uncached sys_physmap - -#include <sys/movedata.h> -#include <sys/segments.h> -#include <go32.h> + if (__djgpp_map_physical_memory(realmem_map, (1024 * 1024), 0)) { + return NULL; + } -static void *realmem_cpy; + return realmem_map + phys_addr; +} -void *sys_physmap_ro_cached(unsigned long phys_addr, size_t len) +void *sys_physmap(unsigned long phys_addr, size_t len) { - /* no support for not a 1MB of mem */ - if ((phys_addr + len) > 1024*1024) + int ret; + __dpmi_meminfo mi; + + /* enable 4GB limit on DS descriptor */ + if (!__djgpp_nearptr_enable()) { return NULL; + } - if (realmem_cpy) - return realmem_cpy + phys_addr; + if ((phys_addr + len - 1) < (1024 * 1024)) { + /* we need to use another method to map first 1MB */ + return map_first_meg(phys_addr, len); + } - realmem_cpy = valloc(1024*1024); + mi.address = phys_addr; + mi.size = len; + ret = __dpmi_physical_address_mapping (&mi); - if (!realmem_cpy) + if (ret != 0) { return NULL; + } - movedata(_dos_ds, 0, _my_ds(), (unsigned long) realmem_cpy, 1024*1024); - return realmem_cpy + phys_addr; + return (void *) mi.address + __djgpp_conventional_base; } +#define sys_physmap_rw_uncached sys_physmap +#define sys_physmap_ro_cached sys_physmap void physunmap(void *virt_addr, size_t len) { __dpmi_meminfo mi; - /* we ignore unmaps for our cheat 1MB copy */ - if ((virt_addr >= realmem_cpy) && ((virt_addr + len) <= (realmem_cpy + 1024*1024))) { + /* we ignore unmaps for our first 1MB */ + if ((virt_addr >= realmem_map) && ((virt_addr + len) <= (realmem_map + (1024 * 1024)))) { return; }

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help - flash chip unknown state - attached output files
by csh tmp 24 Apr '10

24 Apr '10

Hello, First, I want to thank Flashrom developers and maintainers and all the helpers who help make this wonderful utility. Please help urgent problem - flashrom erase failed, flash chip in unknown state now. PLEASE help - what do I do now ? THANK YOU. Attached diagnostic output plain-text files. Thanks again. My system: HP Pavilion a445w, P4SD-LA Motherboard (Stingray), XUbuntu 9.10 Karmic uname -a gives Linux 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 05:23:09 UTC 2010 i686 GNU/Linux Extracted Windows exe "sp26381.exe" from HP software and downloads site at ftp://ftp.hp.com/pub/softpaq/sp26001-26500/sp26381.exe - it contains "328.rom" (524288 bytes) - new BIOS version 3.28 Current existing BIOS version 3.19 Using flashrom v0.9.1-r706, I first earlier saved current BIOS image to "current_bios_amibios3.19.img" (524288 bytes) - got the following output: flashrom v0.9.1-r706 No coreboot table found. Found chipset "Intel ICH5/ICH5R", enabling flash write... OK. This chipset supports the following protocols: Non-SPI. Calibrating delay loop... OK. Found chip "Winbond W39V040FA" (512 KB, FWH) at physical address 0xfff80000. Reading flash... done. I stupidly made a typo in testing by first trying to re-write current bios back to the chip, to test. I typed the following cmd (missed giving the '-' char to -v option) $ sudo flashrom -w current_bios_amibios3.19.img v current_bios_amibios3.19.img flashrom v0.9.1-r706 No coreboot table found. Found chipset "Intel ICH5/ICH5R", enabling flash write... OK. This chipset supports the following protocols: Non-SPI. Calibrating delay loop... OK. Found chip "Winbond W39V040FA" (512 KB, FWH) at physical address 0xfff80000. Flash image seems to be a legacy BIOS. Disabling checks. Writing flash chip... ERASE FAILED at 0x000061f0! Expected=0xff, Read=0x3c, failed byte count from 0x00000000-0x0007ffff: 0x6a379 ERASE FAILED! ERASE FAILED! FAILED! Your flash chip is in an unknown state. Get help on IRC at irc.freenode.net channel #flashrom or mail flashrom(a)flashrom.org ------------------------------------------------------------ DO NOT REBOOT OR POWEROFF!

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NVIDIA MCP65 ("flashrom -V" for unsupported chipset)
by Melchior FRANZ 24 Apr '10

24 Apr '10

> Please send the output of "flashrom -V" to flashrom(a)flashrom.org to > help us finish support for your chipset. Thanks. OK. :-) m.

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flashrom April 2010