Change in ...coreboot[master]: soc/amd/stoneyridge: Access SMBUS through MMIO

[Richard Spiegel (Code Review)]

Hello Marshall Dawson, Paul Menzel, build bot (Jenkins), Martin Roth,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/29258

to look at the new patch set (#11).

Change subject: soc/amd/stoneyridge: Access SMBUS through MMIO
......................................................................

soc/amd/stoneyridge: Access SMBUS through MMIO

Currently SMBUS registers are accessed through IO, but with stoneyridge
they can be accessed through MMIO. This reduces the time of execution by
a tiny amount (MMIO write is faster than IO write, though MMIO read is about
as fast as IO read) as most of the time consumed is actually transaction
time. Convert code to MMIO access.

BUG=b:117754784
TEST=Used IO to write and MMIO to read, to confirm a one to one relationship
between IO and MMIO. Then build and boot grunt.

Change-Id: Ibe1471d1d578611e7d666f70bc97de4c3b74d7f8
Signed-off-by: Richard Spiegel 
---
M src/soc/amd/stoneyridge/include/soc/iomap.h
M src/soc/amd/stoneyridge/include/soc/smbus.h
M src/soc/amd/stoneyridge/include/soc/southbridge.h
M src/soc/amd/stoneyridge/sb_util.c
M src/soc/amd/stoneyridge/sm.c
M src/soc/amd/stoneyridge/smbus.c
M src/soc/amd/stoneyridge/smbus_spd.c
M src/soc/amd/stoneyridge/southbridge.c
8 files changed, 138 insertions(+), 134 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/58/29258/11