flashrom December 2011

flashrom@flashrom.org

45 participants
143 discussions

[PATCH] Add logfile support to flashrom
by Carl-Daniel Hailfinger 08 May '12

08 May '12

Add log file support to flashrom. The log file will always contain all verbose messages even if the user doesn't specify -V. If the user specifies -VV, SPEW messages will be logged as well. Proof of concept, comments welcome. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: flashrom-logfile/flash.h =================================================================== --- flashrom-logfile/flash.h (Revision 1326) +++ flashrom-logfile/flash.h (Arbeitskopie) @@ -229,6 +229,8 @@ #define ERROR_NONFATAL 0x100 /* cli_output.c */ +int open_logfile(char *filename); +int msg_log(const char *fmt, ...); /* Let gcc and clang check for correct printf-style format strings. */ int print(int type, const char *fmt, ...) __attribute__((format(printf, 2, 3))); #define MSG_ERROR 0 Index: flashrom-logfile/cli_output.c =================================================================== --- flashrom-logfile/cli_output.c (Revision 1326) +++ flashrom-logfile/cli_output.c (Arbeitskopie) @@ -2,6 +2,7 @@ * This file is part of the flashrom project. * * Copyright (C) 2009 Sean Nelson <audiohacked(a)gmail.com> + * Copyright (C) 2011 Carl-Daniel Hailfinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -22,30 +23,70 @@ #include <stdarg.h> #include "flash.h" -int print(int type, const char *fmt, ...) +static FILE *logfile = NULL; + +int open_logfile(char *filename) { + if (!filename) { + msg_gerr("No filename specified.\n"); + return 1; + } + if ((logfile = fopen(filename, "w")) == NULL) { + perror(filename); + return 1; + } + return 0; +} + +int msg_log(const char *fmt, ...) +{ va_list ap; int ret; - FILE *output_type; + if (!logfile) + return -1; + va_start(ap, fmt); + ret = vfprintf(logfile, fmt, ap); + va_end(ap); + return ret; +} + +int print(int type, const char *fmt, ...) +{ + va_list ap; + int ret = 0; + int want_screen = 1; + int want_file = 1; + FILE *output_type = stdout; + switch (type) { case MSG_ERROR: output_type = stderr; break; case MSG_BARF: - if (verbose < 2) - return 0; + if (verbose < 2) { + want_screen = 0; + want_file = 0; + } + break; case MSG_DEBUG: if (verbose < 1) - return 0; + want_screen = 0; + break; case MSG_INFO: default: - output_type = stdout; break; } - va_start(ap, fmt); - ret = vfprintf(output_type, fmt, ap); - va_end(ap); + if (want_screen) { + va_start(ap, fmt); + ret = vfprintf(output_type, fmt, ap); + va_end(ap); + } + if (want_file && logfile) { + va_start(ap, fmt); + ret = vfprintf(logfile, fmt, ap); + va_end(ap); + } return ret; } Index: flashrom-logfile/cli_classic.c =================================================================== --- flashrom-logfile/cli_classic.c (Revision 1326) +++ flashrom-logfile/cli_classic.c (Arbeitskopie) @@ -38,7 +38,8 @@ "-z|" #endif "-E|-r <file>|-w <file>|-v <file>]\n" - " [-c <chipname>] [-m [<vendor>:]<part>] [-l <file>]\n" + " [-c <chipname>] [-m [<vendor>:]<part>] [-l <file>] " + "[-o <file>]\n" " [-i <image>] [-p <programmername>[:<parameters>]]\n\n"); printf("Please note that the command line interface for flashrom has " @@ -72,6 +73,7 @@ "<file>\n" " -i | --image <name> only flash image <name> " "from flash layout\n" + " -o | --output <name> log to file <name>\n" " -L | --list-supported print supported devices\n" #if CONFIG_PRINT_WIKI == 1 " -z | --list-supported-wiki print supported devices " @@ -118,7 +120,7 @@ int operation_specified = 0; int i; - static const char optstring[] = "r:Rw:v:nVEfc:m:l:i:p:Lzh"; + static const char optstring[] = "r:Rw:v:nVEfc:m:l:i:p:Lzho:"; static const struct option long_options[] = { {"read", 1, NULL, 'r'}, {"write", 1, NULL, 'w'}, @@ -136,6 +138,7 @@ {"programmer", 1, NULL, 'p'}, {"help", 0, NULL, 'h'}, {"version", 0, NULL, 'R'}, + {"output", 1, NULL, 'o'}, {NULL, 0, NULL, 0} }; @@ -307,14 +310,17 @@ cli_classic_usage(argv[0]); exit(0); break; + case 'o': + tempstr = strdup(optarg); + if (open_logfile(tempstr)) + cli_classic_abort_usage(); + break; default: cli_classic_abort_usage(); break; } } - /* FIXME: Print the actions flashrom will take. */ - if (list_supported) { print_supported(); exit(0); @@ -355,6 +361,10 @@ flash = NULL; } + /* FIXME: Print the actions flashrom will take. */ + /* For the log. FIXME: Print this only to the log file. */ + print_version(); + /* FIXME: Delay calibration should happen in programmer code. */ myusec_calibrate_delay(); -- http://www.hailfinger.org/

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[PATCH] Add Winbond SuperI/O detection
by Carl-Daniel Hailfinger 06 May '12

06 May '12

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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[PATCH] W83697xx superio flash enable
by David Borg 05 May '12

05 May '12

Adds a function to enable the flash interface on w83697xx superio's. Still needs to be hooked up to the superio detection framework though. Signed-off-by: David Borg <borg.db(a)gmail.com>

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Re: [flashrom] FlashRom and Intel C204 chipset.
by Stefan Tauner 09 Mar '12

09 Mar '12

On Wed, 12 Oct 2011 22:01:01 +0400 "Andrey V. Bondarenko" <avbondarenko(a)gmail.com> wrote: > Hello, > > Verbose output is in the attachment file for chipset Intel C204. I sent this > e-mail because it was suggested to send report. > > # ./flashrom --read ./P8B-E-4L-ASUS-0602.ROM > flashrom v0.9.4-r1395 on Linux 2.6.18-274.3.1.el5.028stab094.3 (x86_64), > built with libpci 3.1.7, GCC 4.1.2 20080704 (Red Hat 4.1.2-51), little > endian > flashrom is free software, get the source code at http://www.flashrom.org > > Calibrating delay loop... OK. > Found chipset "Intel C204". > This chipset is marked as untested. If you are using an up-to-date version > of flashrom please email a report to flashrom(a)flashrom.org including a > verbose (-V) log. Thank you! > Enabling flash write... OK. > This chipset supports the following protocols: FWH, SPI. > Found Winbond flash chip "W25Q64" (8192 kB, SPI) at physical address > 0xff800000. > Reading flash... Transaction error! > Read operation failed! > FAILED. hello and thanks for your report. this is another case of a locked Management Engine (ME) region, which we can't unlock yet. i have added the P8B-E/4L to our list of boards with a note about the problem for now and will commit that later. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

2 1

[PATCH] FT2232 programmer frequency divider parameter support
by Samir Ibradžić 28 Feb '12

28 Feb '12

Hello, I would like to submit a patch, that enables extra argument when using FT2232 external programmer, a frequency divider. For FT2232 programmer we have this divider set to 3 by default by DIVIDE_BY constant, which will result in 10MHz (H-chips) or 2MHz (non H-chips) SPI speeds. By providing divider as parameter, SPI interface frequency culd be overridden by user, resulting in different speeds (H-chip example): divider | freq ---------+-------- 1 | 30Mhz 2 | 15Mhz 3 | 10Mhz 4 | 7.5Mhz 5 | 6Mhz 6 | 5Mhz 15 | 2Mhz 30 | 1Mhz 60 | 0.5Mhz 600 | 0.05Mhz (and so on) These lower than default SPI speeds can be very useful when we have flawed flash chips that would not support 10Mhz or bad quality or too long cabling between programmer and the chip. Higher than default speeds might also be useful (if only flashrom AAI implementation was faster). Please note that this parameter is arbitrary integer, maybe only a value up to 255 would really make sense, but i can not be sure about that since it may be programmer hardware dependent. All values between 1-255 worked for me (PicoTAP programmer), as well as 300 & 600 (these resulted in extremely slow flash reads, as expected, 2MB flash that usually takes 16s to read @2-10Mhz, took more than 6 minutes @0.05Mhz). Others values i haven't tested. Signed-off-by: Samir Ibradžić <sibradzic(a)gmail.com> --- $ svn diff Index: ft2232_spi.c =================================================================== --- ft2232_spi.c (revision 1451) +++ ft2232_spi.c (working copy) @@ -168,6 +168,7 @@ enum ftdi_interface ft2232_interface = INTERFACE_B; char *arg; double mpsse_clk; + int divider = DIVIDE_BY; arg = extract_programmer_param("type"); if (arg) { @@ -237,6 +238,17 @@ } } free(arg); + arg = extract_programmer_param("divider"); + if (arg) { + if (isdigit(*arg) && (atoi(arg) > 0)) + divider = atoi(arg); + else { + msg_perr("Error: Invalid frequency divider specified.\n"); + free(arg); + return -2; + } + } + free(arg); msg_pdbg("Using device type %s %s ", get_ft2232_vendorname(ft2232_vid, ft2232_type), get_ft2232_devicename(ft2232_vid, ft2232_type)); @@ -298,16 +310,16 @@ msg_pdbg("Set clock divisor\n"); buf[0] = 0x86; /* command "set divisor" */ /* valueL/valueH are (desired_divisor - 1) */ - buf[1] = (DIVIDE_BY - 1) & 0xff; - buf[2] = ((DIVIDE_BY - 1) >> 8) & 0xff; + buf[1] = (divider - 1) & 0xff; + buf[2] = ((divider - 1) >> 8) & 0xff; if (send_buf(ftdic, buf, 3)) { ret = -6; goto ftdi_err; } msg_pdbg("MPSSE clock: %f MHz divisor: %d " - "SPI clock: %f MHz\n", mpsse_clk, DIVIDE_BY, - (double)(mpsse_clk / (((DIVIDE_BY - 1) + 1) * 2))); + "SPI clock: %f MHz\n", mpsse_clk, divider, + (double)(mpsse_clk / (((divider - 1) + 1) * 2))); /* Disconnect TDI/DO to TDO/DI for loopback. */ msg_pdbg("No loopback of TDI/DO TDO/DI\n"); -- R, S

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Re: [flashrom] [PATCH 1/2] revert flashctx to flashchip in block_eraser helper functions
by Carl-Daniel Hailfinger 26 Feb '12

26 Feb '12

Am 28.12.2011 01:57 schrieb Stefan Tauner: > Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> Sorry, Nack. Quoting from your other mail: > it is easier to "upcast" some flashctx > "objects" to flashchip (which is safe) AFAICS this violates the C standard. http://stackoverflow.com/questions/98650/what-is-the-strict-aliasing-rule The offending hunks are below: > diff --git a/flashrom.c b/flashrom.c > index f1a6165..68b6d97 100644 > --- a/flashrom.c > +++ b/flashrom.c > @@ -1313,7 +1313,7 @@ int erase_and_write_flash(struct flashctx *flash, uint8_t *oldcontents, > int k, ret = 1; > uint8_t *curcontents; > unsigned long size = flash->total_size * 1024; > - unsigned int usable_erasefunctions = count_usable_erasers(flash); > + unsigned int usable_erasefunctions = count_usable_erasers((struct flashchip*) flash); > > msg_cinfo("Erasing and writing flash chip... "); > curcontents = malloc(size); > @@ -1332,7 +1332,7 @@ int erase_and_write_flash(struct flashctx *flash, uint8_t *oldcontents, > break; > } > msg_cdbg("Trying erase function %i... ", k); > - if (check_block_eraser(flash, k, 1)) > + if (check_block_eraser((struct flashchip*) flash, k, 1)) > continue; > usable_erasefunctions--; > ret = walk_eraseregions(flash, k, &erase_and_write_block_helper, > @@ -1680,7 +1680,7 @@ int doit(struct flashctx *flash, int force, const char *filename, int read_it, > int ret = 0; > unsigned long size = flash->total_size * 1024; > > - if (chip_safety_check(flash, force, read_it, write_it, erase_it, verify_it)) { > + if (chip_safety_check((struct flashchip*) flash, force, read_it, write_it, erase_it, verify_it)) { > msg_cerr("Aborting.\n"); > ret = 1; > goto out_nofree; -- http://www.hailfinger.org/

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ASUS OPLX-M results (no flash device found)
by Ville Skyttä 17 Feb '12

17 Feb '12

Hello, I tried out flashrom on a ASUS OPLX-M motherboard, and it didn't find a flash device. I found some info by googling (that I cannot verify) that the OPLX-M would be an OEM (or something) version of the ASUS MEL-M; I suppose this particular board originally came with a Fujitsu/Siemens PC. http://support.asus.com/download/download.aspx?modelname=MEL-M&SLanguage=en…

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Re: [flashrom] [PATCH] ichspi.c: warn user when a protected region is detected
by Stefan Tauner 14 Feb '12

14 Feb '12

On Sun, 27 Nov 2011 11:48:51 -0800 David Hendricks <david.hendricks(a)gmail.com> wrote: > On Sat, Nov 26, 2011 at 3:35 PM, Stefan Tauner < > stefan.tauner(a)student.tuwien.ac.at> wrote: > > > This includes the notorious read-only flash descriptors and locked ME > > regions. > > --- > > non-verbose sample output from my laptop: > > […] > > Found chipset "Intel QS57". Enabling flash write... WARNING: SPI > > Configuration Lockdown activated. > > WARNING: Flash Descriptor region is not fully accessible and flashrom can > > not deal with this correctly yet. Intel does not provide us the necessary > > documention to support this. > > > To be fair, I think Intel documents it fine. That depends on what 'it' is. The limitations and the influence of FDOPSS on that limitation are well defined in public documentation. But the unlocking process is not documented at all publicly. We know from different leaked documents and also from the fact that vendor tools exist, that unlocking can be done by software only and without touching the FDOPSS pin by sending the "HMRFPO Enable" command via HECI/MEI to the ME. The details are documented in the BIOS writer guide(s) (which are "restricted secret" level(?)) > I think what we've got to do > is checking the flash descriptor override pin strap status (FDOPSS). If it > is cleared then we can ignore the descriptor, otherwise if it is set then > we need to avoid locked regions. I would not call it 'ignoring'. We should be aware, that the limitation do not apply (we do print a message to the user already in that case), but we could and should use the regions where it makes sense (e.g. automatic creation of layout (file)s. > It's really just a pain in the ass and, as you pointed out, may leave the > BIOS/ME firmware blobs in an inconsistent or incompatible state. So the > onus is on the user to ensure a safe upgrade path if only part of the ROM > can be updated. It's probably worth displaying a warning and requiring > "--force" or something in that scenario. As a first step yes. IIRC i have sent a patch that does that when active PR protections are found(?), but i think it is not in/reviewed yet. I agree, we should set write_allowed = 0 (or whatever it was) and rephrase the warning to include that. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

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Re: [flashrom] Trial of ARIMA:HDAMA Motherboard
by Carl-Daniel Hailfinger 09 Feb '12

09 Feb '12

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

2 1

[PATCH] dummy programmer: blacklist SPI commands
by Carl-Daniel Hailfinger 08 Feb '12

08 Feb '12

Add optional SPI command blacklisting to the flash chip emulator in the dummy programmer. Usage: flashrom -p dummy:spi_blacklist=hexstring If hexstring is 0302, flashrom will blacklist command 0x03 (READ) and command 0x02 (WRITE). The hexstring can have up to 521 bytes (256 commands) length, and must not start with 0x. TODO: Should 0x at the beginning of hexstring be tolerated? Very useful for testing corner cases if you don't own a locked down Intel chipset and want to simulate such a thing. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: flashrom-emulate_spi_flashchip_command_blacklist/dummyflasher.c =================================================================== --- flashrom-emulate_spi_flashchip_command_blacklist/dummyflasher.c (Revision 1224) +++ flashrom-emulate_spi_flashchip_command_blacklist/dummyflasher.c (Arbeitskopie) @@ -19,6 +19,7 @@ #include <string.h> #include <stdlib.h> +#include <stdio.h> #include <ctype.h> #include "flash.h" #include "chipdrivers.h" @@ -56,6 +57,8 @@ static int emu_jedec_be_d8_size = 0; static int emu_jedec_ce_60_size = 0; static int emu_jedec_ce_c7_size = 0; +unsigned char spi_blacklist[256]; +int spi_blacklist_size = 0; #endif #endif @@ -71,6 +74,7 @@ { char *bustext = NULL; char *tmp = NULL; + int i; #if EMULATE_CHIP struct stat image_stat; #endif @@ -116,6 +120,31 @@ } } + tmp = extract_programmer_param("spi_blacklist"); + if (tmp) { + i = strlen(tmp); + if (i % 2) { + msg_perr("Invalid SPI command blacklist\n"); + free(tmp); + return 1; + } + tolower_string(tmp); + if (strspn(tmp, "0123456789abcdef") != i) { + msg_perr("Invalid SPI command blacklist\n"); + free(tmp); + return 1; + } + spi_blacklist_size = i / 2; + for (i = 0; i < spi_blacklist_size; i++) { + sscanf(tmp, "%2hhx", &spi_blacklist[i]); + } + msg_pdbg("SPI blacklist is "); + for (i = 0; i < spi_blacklist_size; i++) + msg_pdbg("%02x ", spi_blacklist[i]); + msg_pdbg(", size %i\n", spi_blacklist_size); + } + free(tmp); + #if EMULATE_CHIP tmp = extract_programmer_param("emulate"); if (!tmp) { @@ -285,7 +314,7 @@ static int emulate_spi_chip_response(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr) { - int offs; + int offs, i; static int aai_offs; static int aai_active = 0; @@ -293,7 +322,16 @@ msg_perr("No command sent to the chip!\n"); return 1; } - /* TODO: Implement command blacklists here. */ + for (i = 0; i < spi_blacklist_size; i++) { + if (writearr[0] == spi_blacklist[i]) { + msg_perr("Refusing blacklisted SPI command 0x%02x\n", + spi_blacklist[i]); + /* FIXME: Do we want a separate return code for + * command unavailable? + */ + return 1; + } + } switch (writearr[0]) { case JEDEC_RES: if (emu_chip != EMULATE_ST_M25P10_RES) -- http://www.hailfinger.org/

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flashrom December 2011