set_xtensa_params.sh: add missing LNL, ACP_6_3 and vangogh

This adds support for:

   ./scripts/rebuild-testbench.sh -p lnl

Also clean-up, re-order and add comments to set_xtensa_params.sh

Signed-off-by: Marc Herbert <marc.herbert@intel.com>

scripts/set_xtensa_params.sh

@@ -1,12 +1,33 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2023 Intel Corporation. All rights reserved.
 
-# Sourced script argument is a non-standard bash extension
-platform=$1
+### XTENSA_ toolchain configuration shared across projects ###
+
+# These variables are currently used in/by:
+#
+# - xtensa-build-all.sh (XTOS)
+# - script/rebuild-testbench.sh
+# - before Zephyr's `twister` or `west build`
+#
+# Not all variables are used in all use cases. Some are.
+#
+# The variables used by Zephyr are duplicated in
+# xtensa-build-zephyr.py, please keep in sync!
+
+# To maximize reuse, keep this script very basic and minimal and don't
+# `export`: leave which the decision for each variable to the caller.
 
-# Note: This duplicates xtensa-build-zephyr.py
+
+# Sourced script argument $1 is a non-standard bash extension
+[ -n "$1" ] || {
+    >&2 printf 'Missing platform argument\n'
+    return 1 # Not exit!
+}
+platform=$1
 
 case "$platform" in
+
+    # Intel
     tgl)
 	PLATFORM="tgplp"
 	XTENSA_CORE="cavs2x_LX6HiFi3_2017_8"
@@ -26,6 +47,17 @@ case "$platform" in
 	# default key for TGL
 	PLATFORM_PRIVATE_KEY="-D${SIGNING_TOOL}_PRIVATE_KEY=$SOF_TOP/keys/otc_private_key_3k.pem"
 	;;
+    mtl|lnl)
+	PLATFORM="$platform"
+	XTENSA_CORE="ace10_LX7HiFi4_2022_10"
+	XTENSA_TOOLS_VERSION="RI-2022.10-linux"
+	# TODO: to reduce duplication, make rebuild-testbench "smarter"
+	# and able to decode ZEPHYR_TOOLCHAIN_VARIANT (even when it does
+	# not care about Zephyr)
+	COMPILER="xt-clang"
+	;;
+
+    # NXP
     imx8)
 	PLATFORM="imx8"
 	XTENSA_CORE="hifi4_nxp_v3_3_1_2_2017"
@@ -50,6 +82,8 @@ case "$platform" in
 	HOST="xtensa-imx8ulp-elf"
 	XTENSA_TOOLS_VERSION="RG-2017.8-linux"
 	;;
+
+    # AMD
     rn)
 	PLATFORM="renoir"
 	XTENSA_CORE="ACP_3_1_001_PROD_2019_1"
@@ -63,6 +97,22 @@ case "$platform" in
 	HOST="xtensa-rmb-elf"
 	XTENSA_TOOLS_VERSION="RI-2019.1-linux"
 	;;
+    vangogh)
+	PLATFORM="vangogh"
+	ARCH="xtensa"
+	XTENSA_CORE="ACP_5_0_001_PROD"
+	HOST="xtensa-vangogh-elf"
+	XTENSA_TOOLS_VERSION="RI-2019.1-linux"
+	;;
+    acp_6_3)
+	PLATFORM="acp_6_3"
+	ARCH="xtensa"
+	XTENSA_CORE="ACP_6_3_HiFi5_PROD_Linux"
+	HOST="xtensa-acp_6_3-elf"
+	XTENSA_TOOLS_VERSION="RI-2021.6-linux"
+	;;
+
+    # Mediatek
     mt8186)
 	PLATFORM="mt8186"
 	XTENSA_CORE="hifi5_7stg_I64D128"
@@ -81,10 +131,9 @@ case "$platform" in
 	HOST="xtensa-mt8195-elf"
 	XTENSA_TOOLS_VERSION="RI-2019.1-linux"
 	;;
-    mtl)
-	PLATFORM="mtl"
-	XTENSA_CORE="ace10_LX7HiFi4_2022_10"
-	XTENSA_TOOLS_VERSION="RI-2022.10-linux"
-	COMPILER="xt-clang"
+
+    *)
+	>&2 printf 'Unknown xtensa platform=%s\n' "$platform"
+	return 1
 	;;
 esac

scripts/xtensa-build-zephyr.py

@@ -87,6 +87,7 @@ class PlatformConfig:
 	aliases: list = dataclasses.field(default_factory=list)
 
 # These can all be built out of the box. --all builds all these.
+# Some of these values are duplicated in sof/scripts/set_xtensa_param.sh: keep them in sync.
 platform_configs_all = {
 	#  Intel platforms
 	"tgl" : PlatformConfig(