Subrata Banik has uploaded this change for review.

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mb/intel/adlrvp: Adopt overridetree.cb for ADL RVP mainboards

List of changes:
1. Keep devicetree.cb inside 'variants/baseboard'
2. Create variant directory for ADL RVP with external EC as
'adlrvp_p_ext_ec'
3. Add initial overridetree.cb for 'adlrvp_p' and 'adlrvp_p_ext_ec'
to override 'variants/baseboard/devicetree.cb' as applicable.

TEST=Build and boot both ADLRVP with onboard/external EC.

Change-Id: I3591e214ed32dc9baaa49b92dff59579f29c7bd6
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
---
M src/mainboard/intel/adlrvp/Kconfig
A src/mainboard/intel/adlrvp/variants/adlrvp_p/overridetree.cb
A src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
R src/mainboard/intel/adlrvp/variants/baseboard/devicetree.cb
4 files changed, 15 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/47335/1

diff --git a/src/mainboard/intel/adlrvp/Kconfig b/src/mainboard/intel/adlrvp/Kconfig
index 97b4bf7..e82d8dd 100644
--- a/src/mainboard/intel/adlrvp/Kconfig
+++ b/src/mainboard/intel/adlrvp/Kconfig
@@ -31,7 +31,8 @@
 
 config VARIANT_DIR
 	string
-	default "adlrvp_p"
+	default "adlrvp_p" if BOARD_INTEL_ADLRVP_P
+	default "adlrvp_p_ext_ec" if BOARD_INTEL_ADLRVP_P_EXT_EC
 
 config GBB_HWID
 	string
@@ -48,7 +49,11 @@
 
 config DEVICETREE
 	string
-	default "variants/$(CONFIG_VARIANT_DIR)/devicetree.cb"
+	default "variants/baseboard/devicetree.cb"
+
+config OVERRIDE_DEVICETREE
+	string
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
 
 config DIMM_SPD_SIZE
 	int
diff --git a/src/mainboard/intel/adlrvp/variants/adlrvp_p/overridetree.cb b/src/mainboard/intel/adlrvp/variants/adlrvp_p/overridetree.cb
new file mode 100644
index 0000000..e58e9fb
--- /dev/null
+++ b/src/mainboard/intel/adlrvp/variants/adlrvp_p/overridetree.cb
@@ -0,0 +1,4 @@
+chip soc/intel/alderlake
+
+	device domain 0 on end
+end
diff --git a/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb b/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
new file mode 100644
index 0000000..e58e9fb
--- /dev/null
+++ b/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
@@ -0,0 +1,4 @@
+chip soc/intel/alderlake
+
+	device domain 0 on end
+end
diff --git a/src/mainboard/intel/adlrvp/variants/adlrvp_p/devicetree.cb b/src/mainboard/intel/adlrvp/variants/baseboard/devicetree.cb
similarity index 100%
rename from src/mainboard/intel/adlrvp/variants/adlrvp_p/devicetree.cb
rename to src/mainboard/intel/adlrvp/variants/baseboard/devicetree.cb

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