Samples: Bluetooth: Mesh: Make Light sample fit with DFU and TFM

This reconfigures TFM and the TFM partition size to make it possible to fit TFM and the application when building with a bootloader using the DFU overlay config. Co-authored-by: Ludvig Jordet <[email protected]> Signed-off-by: Anders Storrø <[email protected]>
nrfconnect · May 31, 2024 · 94e2fa0 · 94e2fa0
1 parent 1fd0366
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diff --git a/samples/bluetooth/mesh/light/Kconfig b/samples/bluetooth/mesh/light/Kconfig
@@ -0,0 +1,18 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+# Set lower default sizes for TF-M partition when using the TF-M Profile Small.
+# This is done using defaults instead of in a conf file in order to set the
+# correctly aligned size depending on the presence of the bootloader or not.
+
+# Declared before sourcing "Kconfig.zephyr" in order to give precedence
+# to these application-specific defaults instead of the unconditional default
+# in the Zephyr Kconfig tree.
+configdefault PM_PARTITION_SIZE_TFM
+	default 0x17e00 if TFM_PROFILE_TYPE_SMALL && BOOTLOADER_MCUBOOT
+	default 0x18000 if TFM_PROFILE_TYPE_SMALL
+
+source "Kconfig.zephyr"
diff --git a/samples/bluetooth/mesh/light/boards/nrf5340dk_nrf5340_cpuapp_ns.conf b/samples/bluetooth/mesh/light/boards/nrf5340dk_nrf5340_cpuapp_ns.conf
@@ -12,3 +12,6 @@ CONFIG_BT_HOST_CRYPTO=n
 CONFIG_BT_GATT_CACHING=n
 
 CONFIG_SOC_FLASH_NRF_PARTIAL_ERASE=n
+
+# Use the TF-M Profile Small to save ROM and be able to fit when using bootloader
+CONFIG_TFM_PROFILE_TYPE_SMALL=y