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ec/google/chromeec: Add config option for eSPI 

The Intel platforms using eSPI EC communication have just been enabling
the EC_GOOGLE_CHROMEEC_LPC option for simplicity.  This does basically
the same, but at least marks it as eSPI in Kconfig for clarity.

BUG=b:140055300
TEST=Build tested only.

Change-Id: Ib56ec9d1dc204809a05c846494ff0e0d69cf70ea
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35128
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Martin Roth 2019-08-27 15:49:27 -06:00 committed by Patrick Georgi
parent c6f2b61355
commit d12d25227f
1 changed files with 11 additions and 0 deletions
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11
src/ec/google/chromeec/Kconfig
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@ -47,6 +47,17 @@ config EC_GOOGLE_CHROMEEC_I2C_PROTO3
help
Use only proto3 for i2c EC communication.
config EC_GOOGLE_CHROMEEC_ESPI
depends on EC_GOOGLE_CHROMEEC && ARCH_X86 # Needs Plug-and-play.
def_bool n
select EC_GOOGLE_CHROMEEC_LPC
help
Google Chrome EC via eSPI bus.
The EC communication code is the same between eSPI and LPC, so
this option simply enables the LPC EC code. The eSPI device
still needs to correctly configure the bus transactions.
config EC_GOOGLE_CHROMEEC_LPC
depends on EC_GOOGLE_CHROMEEC && ARCH_X86 # Needs Plug-and-play.
def_bool y