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Add board enable for ASUS P4SC-E

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I does this by setting bits 3..2 of register 0x24 on the ITE IT8707F,
while keeping bit 3 of register 0x23 set while manipulating the first
register.

AFAIK, there is no public datasheet available for this super i/o chip, but
the above is how the vendor BIOS does it. Also, registers 0x23 and 0x24 seem
to have the same meaning as on the ITE IT8710F.

Matching on NB/SB.

Tested on a P4SC-E with SST 39SF020A flash. Probe, read, erase, write
all work.

lspci/superio output:
http://www.flashrom.org/pipermail/flashrom/2010-July/004090.html

flashrom output:
http://www.flashrom.org/pipermail/flashrom/2010-August/004566.html

Many thanks to Reinder de Haan for help with reverse engineering this!

Corresponding to flashrom svn r1161.

Signed-off-by: Mattias Mattsson <vitplister@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Mattias Mattsson
2010-09-13 19:39:25 +00:00
parent c8ca3de5ae
commit fb60cec402
2 changed files with 44 additions and 0 deletions
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print.c
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@ -363,6 +363,7 @@ const struct board_info boards_known[] = {
B("ASUS", "P4C800-E Deluxe", 1, "http://www.asus.com/product.aspx?P_ID=cFuVCr9bXXCckmcK", NULL),
B("ASUS", "P4P800", 1, "http://www.asus.com/product.aspx?P_ID=DYt1Et9MlBChqzLb", NULL),
B("ASUS", "P4P800-E Deluxe", 1, "http://www.asus.com/product.aspx?P_ID=INIJUvLlif7LHp3g", NULL),
B("ASUS", "P4SC-E", 1, "ftp://ftp.asus.com.tw/pub/ASUS/mb/sock478/p4sc-e/", "Part of ASUS Terminator P4 533 barebone system"),
B("ASUS", "P4SD-LA", 1, "http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00022505", NULL),
B("ASUS", "P4S800-MX", 1, "http://www.asus.com/product.aspx?P_ID=Bb57zoJhmO1Qkcrh", NULL),
B("ASUS", "P5A", 1, "ftp://ftp.asus.com.tw/pub/ASUS/mb/sock7/ali/p5a/", NULL),