[coreboot] AMD SB700/SB710/SB750 docs have been released!

[Carl-Daniel Hailfinger]

AMD just released the following docs we need for SB700/SB710/SB750
coreboot support:

* AMD SB700/710/750 Register Reference Guide
* AMD SB700/710/750 BIOS Developer’s Guide
* AMD SB700/710/750 Register Programming Requirements
* AMD SB710 Databook

Links to all data sheets are at
http://www.coreboot.org/Datasheets#AMD_SB700.2FSB710.2FSB750

This is a great step towards supporting current RS780/SB700 family systems.

Immediate benefits of this doc release are:
- We can implement SB700/SB710/SB750 support without NDA.
- We can study the embedded controller environment and the SuperI/O
functionality in some SB7x0 southbridges.

Future benefits are:
- We can support 690/SB700 boards once the SB700 code is done.
- We can test SB700 code in 690/SB700 boards and make sure it works
perfectly before we start working on RS780 code.
- We have 50% of the docs we need for almost all boards with AMD chipset
on sale today.

What can we do next?
- Implement SB700 code.
- RS690/SB700 boards do not exist. However, it seems that RS740 is RS690
with a modified graphics core, so RS740/SB700 boards are the best
targets we can pick.

List of possible targets with RS740/SB700:
- ECS Elitegroup A740GM-M (89-206-V15102)
http://www.ecs.com.tw/ECSWebSite/Products/ProductsDetail.aspx?detailid=864&CategoryID=1&DetailName=Specification&MenuID=1&LanID=0

- Gigabyte GA-MA74GM-S2 (rev 1.x and 2.0)
http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=3063
http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2813

- Gigabyte GA-MA74GM-S2 (rev 1.x and 2.0)
http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=2775
http://www.gigabyte.com.tw/Products/Motherboard/Products_Overview.aspx?ProductID=3062

- ASUS M2A74-AM
http://www.asus.com/product.aspx?P_ID=YPZrr3KRcW3MBX5G

- MSI K9A2GM-F V3 (MS-7302-020, there seem to be many variants of this
board, some of them may have a 740 variant which is not compatible with 690)
http://us.msi.com/product/p_spec.asp?model=K9A2GM-F_V3&class=mb


Thanks to AMD for releasing these docs!

Regards,
Carl-Daniel