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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>
Reviewed-on: https://review.coreboot.org/14032
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Jan Tatje 2016-03-11 00:52:07 +01:00 committed by Martin Roth
parent cbfec89037
commit fa31751fc7
1 changed files with 112 additions and 3 deletions
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115
util/ifdtool/ifdtool.c
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@ -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);