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Refine Flash Component descriptor handling

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Possible values as well as encodings have changed in newer chipsets as follows.
 - Pre-PCH (i.e. ICH) chipsets had a maximum frequency of 33 MHz for all
   operations
 - Since Cougar Point the chipsets support dual output fast reads (encoded
   in bit 30).
 - Flash component density encoding has changed from 3 to 4 bits with Lynx
   Point, currently allowing for up to 64 MB chips.

Corresponding to flashrom svn r1843.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Stefan Tauner
2014-08-20 15:39:19 +00:00
parent 9e3a6984da
commit 2ba9f6ebe5
4 changed files with 206 additions and 67 deletions
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6
util/ich_descriptors_tool/ich_descriptors_tool.c
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@ -113,7 +113,7 @@ static void usage(char *argv[], char *error)
"where <image file name> points to an image of the contents of the SPI flash.\n"
"In case the image is really in descriptor mode %s\n"
"will pretty print some of the contained information.\n"
"To also print the data stored in the descriptor strap you have to indicate\n"
"To also print the data stored in the descriptor straps you have to indicate\n"
"the chipset series with the '-c' parameter and one of the possible arguments:\n"
"\t- \"ich8\",\n"
"\t- \"ich9\",\n"
@ -121,6 +121,7 @@ static void usage(char *argv[], char *error)
"\t- \"5\" or \"ibex\" for Intel's 5 series chipsets,\n"
"\t- \"6\" or \"cougar\" for Intel's 6 series chipsets,\n"
"\t- \"7\" or \"panther\" for Intel's 7 series chipsets.\n"
"\t- \"8\" or \"lynx\" for Intel's 8 series chipsets.\n"
"If '-d' is specified some regions such as the BIOS image as seen by the CPU or\n"
"the GbE blob that is required to initialize the GbE are also dumped to files.\n",
argv[0], argv[0]);
@ -198,6 +199,9 @@ int main(int argc, char *argv[])
else if ((strcmp(csn, "7") == 0) ||
(strcmp(csn, "panther") == 0))
cs = CHIPSET_7_SERIES_PANTHER_POINT;
else if ((strcmp(csn, "8") == 0) ||
(strcmp(csn, "lynx") == 0))
cs = CHIPSET_8_SERIES_LYNX_POINT;
}
ret = read_ich_descriptors_from_dump(buf, len, &desc);