commit 55606d43ab8cb2baffffa40ef9cf26df765e63be
author Subrata Banik <subratabanik@google.com> Thu May 25 18:36:32 2023 +0530
committer Subrata Banik <subratabanik@google.com> Sat May 27 04:01:17 2023 +0000
tree c9606d5b4e703fa3e93a9f9924ac13d62fe3a0d4
parent 49d8aa7043ea4c9c3f5c655007234b386ba33919

mb/google/rex: Create variant to support ISH enablement

This patch creates a new variant to support the ISH enablement using
Rex platform.The idea here is to leverage the `rex0` code as much as
possible and add specific support for ISH enablement as per the hardware
schematic differences.

BUG=b:284254353
TEST=Able to build google/rex_ish_ec board and boot on target hardware.

Change-Id: I625fd0b31aed998f4e8f2d139827bc212ee8a90b
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75470
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: YH Lin <yueherngl@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

src/mainboard/google/rex/Kconfig

diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index c95da35..ab399cb 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -82,12 +82,12 @@
 	default "Google_Rex" if BOARD_GOOGLE_BASEBOARD_REX
 
 config MAINBOARD_PART_NUMBER
-	default "Rex" if BOARD_GOOGLE_REX0
+	default "Rex" if BOARD_GOOGLE_REX0 || BOARD_GOOGLE_REX_EC_ISH
 	default "Screebo" if BOARD_GOOGLE_SCREEBO
 
 config VARIANT_DIR
 	string
-	default "rex0" if BOARD_GOOGLE_REX0
+	default "rex0" if BOARD_GOOGLE_REX0 || BOARD_GOOGLE_REX_EC_ISH
 	default "screebo" if BOARD_GOOGLE_SCREEBO
 
 config DIMM_SPD_SIZE
@@ -111,7 +111,7 @@
 
 config DRIVER_TPM_I2C_BUS
 	hex
-	default 0x4 if BOARD_GOOGLE_REX0 || BOARD_GOOGLE_SCREEBO
+	default 0x4 if BOARD_GOOGLE_REX0 || BOARD_GOOGLE_SCREEBO || BOARD_GOOGLE_REX_EC_ISH
 
 config DRIVER_TPM_I2C_ADDR
 	hex

src/mainboard/google/rex/Kconfig.name

diff --git a/src/mainboard/google/rex/Kconfig.name b/src/mainboard/google/rex/Kconfig.name
index 886a2f0..b990e31 100644
--- a/src/mainboard/google/rex/Kconfig.name
+++ b/src/mainboard/google/rex/Kconfig.name
@@ -8,3 +8,9 @@
 config BOARD_GOOGLE_SCREEBO
 	bool "->  Screebo"
 	select BOARD_GOOGLE_BASEBOARD_REX
+
+config BOARD_GOOGLE_REX_EC_ISH
+	bool "-> Rex EC ISH"
+	select BOARD_GOOGLE_BASEBOARD_REX
+	select DRIVERS_GENESYSLOGIC_GL9755
+	select DRIVERS_INTEL_ISH