[coreboot] [PATCH] SB700: enable PrefetchEnSPIFromHost to improve boot time from SPI flash

Scott Duplichan scott at notabs.org
Mon Oct 18 06:10:35 CEST 2010

]> This patch enables SB700 option PrefetchEnSPIFromHost in early setup.
]> It affects only systems booting from SPI flash, not those booting from
]> LPC flash. By default, the SB700 reads dwords from the SPI flash chip.
]> Setting PrefetchEnSPIFromHost causes the SB700 to read entire cache
]> lines from the flash chip. 
]> Thanks,
]> Scott
]> Signed-off-by: Scott Duplichan <scott at notabs.org>
](Speaking with my flashrom hat on)
]Looks good to me.
]I think we want the same setting for SB600 if it is available there.
]Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
]Can you commit or should I do it?

Thanks Carl-Daniel,

I managed to do the commit. Unfortunately, SB600 does not support
this option. Starting with SB800, the fast mode SPI writes can be
used in addition to PrefetchEnSPIFromHost. SB900 has even more 
SPI improvement.


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