Jan Tatje just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14032
-gerrit
commit 55eecea569ca602a43aca2223d567d6ff6ede273 Author: Jan Tatje jan@jnt.io Date: Fri Mar 11 00:52:07 2016 +0100
util/ifdtool: add option to change chip density
Adds -D / --density option to change the chip density. This is only implemented for IFD version 1 as I do not have an IFD version 2 to test this. Density of both chips is changed by default, but a chip can be selected using -C / --chip.
Change-Id: Iba7affbf6cbefa3147b7b0e019298d905e694716 Signed-off-by: Jan Tatje jan@jnt.io --- util/ifdtool/ifdtool.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 112 insertions(+), 3 deletions(-)
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c index 8a12725..85c6d4d 100644 --- a/util/ifdtool/ifdtool.c +++ b/util/ifdtool/ifdtool.c @@ -28,6 +28,7 @@ #endif
static int ifd_version; +static int selected_chip = 0;
static const struct region_name region_names[MAX_REGIONS] = { { "Flash Descriptor", "fd" }, @@ -748,6 +749,59 @@ static void set_em100_mode(char *filename, char *image, int size) set_spi_frequency(filename, image, size, freq); }
+static void set_chipdensity(char *filename, char *image, int size, + unsigned int density) +{ + fdbar_t *fdb = find_fd(image, size); + fcba_t *fcba = (fcba_t *) (image + (((fdb->flmap0) & 0xff) << 4)); + + printf("Setting chip density to "); + decode_component_density(density); + printf("\n"); + + switch (ifd_version) { + case IFD_VERSION_1: + /* fail if selected density is not supported by this version */ + if ( (density == COMPONENT_DENSITY_32MB) || + (density == COMPONENT_DENSITY_64MB) || + (density == COMPONENT_DENSITY_UNUSED) ) { + printf("error: Selected density not supported in IFD version 1.\n"); + exit(EXIT_FAILURE); + } + break; + case IFD_VERSION_2: + /* I do not have a version 2 IFD nor do i have the docs. */ + printf("error: Changing the chip density for IFD version 2 has not been" + " implemented yet.\n"); + exit(EXIT_FAILURE); + default: + printf("error: Unknown IFD version\n"); + exit(EXIT_FAILURE); + break; + } + + /* clear chip density for corresponding chip */ + switch (selected_chip) { + case 1: + fcba->flcomp &= ~(0x7); + break; + case 2: + fcba->flcomp &= ~(0x7 << 3); + break; + default: /*both chips*/ + fcba->flcomp &= ~(0x3F); + break; + } + + /* set the new density */ + if (selected_chip == 1 || selected_chip == 0) + fcba->flcomp |= (density); /* first chip */ + if (selected_chip == 2 || selected_chip == 0) + fcba->flcomp |= (density << 3); /* second chip */ + + write_image(filename, image, size); +} + static void lock_descriptor(char *filename, char *image, int size) { int wr_shift, rd_shift; @@ -1075,6 +1129,10 @@ static void print_usage(const char *name) " -i | --inject <region>:<module> inject file <module> into region <region>\n" " -n | --newlayout <filename> update regions using a flashrom layout file\n" " -s | --spifreq <17|20|30|33|48|50> set the SPI frequency\n" + " -D | --density <512|1|2|4|8|16> set chip density (512 in KByte, others in MByte)\n" + " -C | --chip <0|1|2> select spi chip on which to operate\n" + " can only be used once per run:\n" + " 0 - both chips (default), 1 - first chip, 2 - second chip\n" " -e | --em100 set SPI frequency to 20MHz and disable\n" " Dual Output Fast Read Support\n" " -l | --lock Lock firmware descriptor and ME region\n" @@ -1090,9 +1148,10 @@ int main(int argc, char *argv[]) int opt, option_index = 0; int mode_dump = 0, mode_extract = 0, mode_inject = 0, mode_spifreq = 0; int mode_em100 = 0, mode_locked = 0, mode_unlocked = 0; - int mode_layout = 0, mode_newlayout = 0; + int mode_layout = 0, mode_newlayout = 0, mode_density = 0; char *region_type_string = NULL, *region_fname = NULL, *layout_fname = NULL; int region_type = -1, inputfreq = 0; + unsigned int new_density = 0; enum spi_frequency spifreq = SPI_FREQUENCY_20MHZ;
static struct option long_options[] = { @@ -1102,6 +1161,8 @@ int main(int argc, char *argv[]) {"inject", 1, NULL, 'i'}, {"newlayout", 1, NULL, 'n'}, {"spifreq", 1, NULL, 's'}, + {"density", 1, NULL, 'D'}, + {"chip", 1, NULL, 'C'}, {"em100", 0, NULL, 'e'}, {"lock", 0, NULL, 'l'}, {"unlock", 0, NULL, 'u'}, @@ -1110,7 +1171,7 @@ int main(int argc, char *argv[]) {0, 0, 0, 0} };
- while ((opt = getopt_long(argc, argv, "df:xi:n:s:eluvh?", + while ((opt = getopt_long(argc, argv, "df:D:C:xi:n:s:eluvh?", long_options, &option_index)) != EOF) { switch (opt) { case 'd': @@ -1169,6 +1230,51 @@ int main(int argc, char *argv[]) exit(EXIT_FAILURE); } break; + case 'D': + mode_density = 1; + new_density = strtoul(optarg, NULL, 0); + switch (new_density) { + case 512: + new_density = COMPONENT_DENSITY_512KB; + break; + case 1: + new_density = COMPONENT_DENSITY_1MB; + break; + case 2: + new_density = COMPONENT_DENSITY_2MB; + break; + case 4: + new_density = COMPONENT_DENSITY_4MB; + break; + case 8: + new_density = COMPONENT_DENSITY_8MB; + break; + case 16: + new_density = COMPONENT_DENSITY_16MB; + break; + case 32: + new_density = COMPONENT_DENSITY_32MB; + break; + case 64: + new_density = COMPONENT_DENSITY_64MB; + break; + case 0: + new_density = COMPONENT_DENSITY_UNUSED; + break; + default: + printf("error: Unknown density\n"); + print_usage(argv[0]); + exit(EXIT_FAILURE); + } + break; + case 'C': + selected_chip = strtol(optarg, NULL, 0); + if (selected_chip > 2) { + fprintf(stderr, "error: Invalid chip selection\n"); + print_usage(argv[0]); + exit(EXIT_FAILURE); + } + break; case 's': // Parse the requested SPI frequency inputfreq = strtol(optarg, NULL, 0); @@ -1239,7 +1345,7 @@ int main(int argc, char *argv[])
if ((mode_dump + mode_layout + mode_extract + mode_inject + mode_newlayout + mode_spifreq + mode_em100 + mode_locked + - mode_unlocked) == 0) { + mode_unlocked + mode_density) == 0) { fprintf(stderr, "You need to specify a mode.\n\n"); print_usage(argv[0]); exit(EXIT_FAILURE); @@ -1300,6 +1406,9 @@ int main(int argc, char *argv[]) if (mode_spifreq) set_spi_frequency(filename, image, size, spifreq);
+ if (mode_density) + set_chipdensity(filename, image, size, new_density); + if (mode_em100) set_em100_mode(filename, image, size);