[nrf fromtree] snippets: nordic-log-stm-tpiu-dict: Added

Added a new convience snippet to redirect logs to STM and then sink them
to TPIU where they can be captured by a trace probe.

Signed-off-by: Karsten Koenig <[email protected]>
(cherry picked from commit 0b5bb3c)

Author: karstenkoenig

samples/boards/nordic/coresight_stm/sample.yaml

@@ -22,6 +22,13 @@ tests:
       - SB_CONFIG_APP_CPUPPR_RUN=y
       - SB_CONFIG_APP_CPUFLPR_RUN=y
 
+  sample.boards.nrf.coresight_stm.tpiu.dict:
+    required_snippets:
+      - nordic-log-stm-tpiu-dict
+    extra_args:
+      - SB_CONFIG_APP_CPUPPR_RUN=y
+      - SB_CONFIG_APP_CPUFLPR_RUN=y
+
   sample.boards.nrf.coresight_stm:
     harness: pytest
     harness_config:

snippets/nordic/nordic-log-stm-tpiu-dict/README.rst

@@ -0,0 +1,11 @@
+.. _nordic-log-stm-tpiu-dict:
+
+Nordic Dictionary-based STM to TPIU logging snippet (nordic-log-stm-tpiu-dict)
+##############################################################################
+
+Overview
+********
+
+This snippet allows users to build Zephyr with the dictionary-based logging to
+the Coresight STM stimulus ports. Data is written to the TPIU interface and can
+be captured with nrfutil trace to translate into a human-readable format.

snippets/nordic/nordic-log-stm-tpiu-dict/boards/nrf54h20_cpuapp.overlay

@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&coresight {
+	status = "okay";
+	mode = "stm-tpiu";
+	pinctrl-0 = <&tpiu_default>;
+	pinctrl-names = "default";
+};

snippets/nordic/nordic-log-stm-tpiu-dict/log_stm_dict.conf

@@ -0,0 +1,6 @@
+CONFIG_LOG=y
+CONFIG_TEST_LOGGING_DEFAULTS=n
+CONFIG_LOG_FRONTEND=y
+CONFIG_LOG_FRONTEND_ONLY=y
+CONFIG_LOG_FRONTEND_STMESP=y
+CONFIG_DEBUG_DRIVER=y

snippets/nordic/nordic-log-stm-tpiu-dict/snippet.yml

@@ -0,0 +1,7 @@
+name: nordic-log-stm-tpiu-dict
+append:
+  EXTRA_CONF_FILE: log_stm_dict.conf
+boards:
+  /.*/nrf54h20/cpuapp/:
+    append:
+      EXTRA_DTC_OVERLAY_FILE: boards/nrf54h20_cpuapp.overlay