boards: nordic: thingy53: Add QSPI nrfutil config

Adds a configuration file which is used with nrfutil to allow
programming QSPI on the device

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>

Author: nordicjm

boards/nordic/thingy53/board.cmake

@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 if(CONFIG_BOARD_THINGY53_NRF5340_CPUAPP OR CONFIG_BOARD_THINGY53_NRF5340_CPUAPP_NS)
+  board_runner_args(nrfutil "--ext-mem-config-file=${BOARD_DIR}/support/thingy53_qspi_nrfutil_config.json")
   board_runner_args(jlink "--device=nrf5340_xxaa_app" "--speed=4000")
 elseif(CONFIG_BOARD_THINGY53_NRF5340_CPUNET)
   board_runner_args(jlink "--device=nrf5340_xxaa_net" "--speed=4000")

boards/nordic/thingy53/support/thingy53_qspi_nrfutil_config.json

@@ -0,0 +1,22 @@
+{
+  "firmware_config": {
+    "peripheral": "QSPI"
+  },
+  "pins": {
+    "sck": 17,
+    "csn": 18,
+    "io0": 13,
+    "io1": 14,
+    "io2": 15,
+    "io3": 16
+  },
+  "flash_size": 8388608,
+  "sck_frequency": 8000000,
+  "address_mode": "MODE24BIT",
+  "readoc": "READ2IO",
+  "writeoc": "PP",
+  "pp_size": "PPSIZE256",
+  "sck_delay": 128,
+  "rx_delay": 2,
+  "page_size": 4096
+}