boards: nordic: nrf52840dk: 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/nrf52840dk/board.cmake

@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: Apache-2.0
 
+if(CONFIG_SOC_NRF52840_QIAA)
+  board_runner_args(nrfutil "--ext-mem-config-file=${BOARD_DIR}/support/nrf52840dk_qspi_nrfutil_config.json")
+endif()
+
 board_runner_args(jlink "--device=nRF52840_xxAA" "--speed=4000")
 board_runner_args(pyocd "--target=nrf52840" "--frequency=4000000")
 include(${ZEPHYR_BASE}/boards/common/nrfutil.board.cmake)

boards/nordic/nrf52840dk/support/nrf52840dk_qspi_nrfutil_config.json

@@ -0,0 +1,22 @@
+{
+  "firmware_config": {
+    "peripheral": "QSPI"
+  },
+  "pins": {
+    "sck": 19,
+    "csn": 17,
+    "io0": 20,
+    "io1": 21,
+    "io2": 22,
+    "io3": 23
+  },
+  "flash_size": 8388608,
+  "sck_frequency": 8000000,
+  "address_mode": "MODE24BIT",
+  "readoc": "READ4IO",
+  "writeoc": "PP4IO",
+  "pp_size": "PPSIZE256",
+  "sck_delay": 128,
+  "rx_delay": 2,
+  "page_size": 4096
+}