[flashrom] [PATCH] Add Spi interface support for Tunnel Creek chipset (3)

[Feldschmid, Ingo]

Hi, 

Last changes I submitted have been vs. trunk 1424. Since there is a new
version out, I will resubmit the changes built against the new flashrom
trunk version: 

The Intel Tunnel Creek chipset supports both an SPI and an LPC bus. Set
chipset table entry for Tunnel Creek to new function
"enable_flash_tunnelcreek", which will read the hardware straps and
return support for the bus that has been used for booting. This function
uses "ich_init_spi" with ich_generation set to 7 for initializing the
SPI bus if necessary. 

SPI functionality tested on actual hardware (see attached file
flashrom.log), Tunnel Creek LPC interface not tested yet (missing
hardware for that).

The attached patch has been created vs. flashrom trunk 1427. 

Signed-off-by: Ingo Feldschmid <ifel at msc-ge.com>

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