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authorFrancis Rowe <info@gluglug.org.uk>2015-01-10 23:06:03 (EST)
committer Francis Rowe <info@gluglug.org.uk>2015-01-10 23:09:18 (EST)
commit293d52e0d125f56b106a10284c60e7cd22605f27 (patch)
tree15cbb16523f3f1f7748ab50b70acd8a72f0a6280 /resources/utilities
parentcbd923db57f8c7b26d77adb118c01a3cbf70b507 (diff)
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ich9deblob: do not change the MAC address
ich9gen can change the MAC address, so there's no need here.
Diffstat (limited to 'resources/utilities')
-rw-r--r--resources/utilities/ich9deblob/src/gbe/gbe.c16
1 files changed, 1 insertions, 15 deletions
diff --git a/resources/utilities/ich9deblob/src/gbe/gbe.c b/resources/utilities/ich9deblob/src/gbe/gbe.c
index c67d94d..1d48f2c 100644
--- a/resources/utilities/ich9deblob/src/gbe/gbe.c
+++ b/resources/utilities/ich9deblob/src/gbe/gbe.c
@@ -56,28 +56,14 @@ struct GBEREGIONRECORD_8K deblobbedGbeStructFromFactory(struct GBEREGIONRECORD_8
unsigned int i;
/*
- * Word 40h to 53h of Gbe had this in the old deblobbed_descriptor.bin:
- * 20 60 1F 00 02 00 13 00 00 80 1D 00 FF 00 16 00 DD CC 18 00 11 20 17 00 DD DD 18 00 12 20 17 00 00 80 1D 00 00 00 1F 00
- *
- * We really don't know. Blanking them with 0xFF seems harmless, though (nothing important seems broken).
- *
* http://www.intel.co.uk/content/dam/doc/application-note/82573-nvm-map-appl-note.pdf
* That is a datasheet for a later chipset. Word 40H-53H seems (as per this datasheet) to be for AMT.
- * Since libreboot disables and removes ME/AMT, it makes sense that blanking out words 40h to 53h
- * has no effect on functionality, since ME/AMT is already removed (assuming that 40-53 is really for AMT).
+ * Writing over it doesn't seem to cause any harm, since the ME/AMT is already removed in libreboot.
*/
for(i = 0; i < sizeof(gbeStruct8k.backup.padding); i++) {
gbeStruct8k.backup.padding[i] = 0xFF; /* FF is correct. In the struct, this is a char buffer. */
} /* We really only need to do this for words 40h-53h, but let's just nuke the whole lot. It's all 0xFF anyway. */
- /* Set the default MAC address */
- gbeStruct8k.backup.macAddress[0] = 0x00;
- gbeStruct8k.backup.macAddress[1] = 0xF5;
- gbeStruct8k.backup.macAddress[2] = 0xF0;
- gbeStruct8k.backup.macAddress[3] = 0x40;
- gbeStruct8k.backup.macAddress[4] = 0x71;
- gbeStruct8k.backup.macAddress[5] = 0xFE;
-
/* Fix the checksum */
gbeStruct8k.backup.checkSum = gbeGetChecksumFrom4kStruct(gbeStruct8k.backup, GBECHECKSUMTOTAL);