From e3d9d8ef51d3668ce51ab3cd7e610109a8f9db98 Mon Sep 17 00:00:00 2001
From: Patrick Joy <patrick@joytech.com.au>
Date: Sat, 8 Mar 2025 22:11:35 +1100
Subject: [PATCH] zephyr/boards: Add nrf5340dk board configuration.

Add support for the nrf5340dk.  This DK has a MX25R64 8mb external QSPI
flash chip.

Compile using:

    $ west build -b nrf5340dk/nrf5340/cpuapp

Signed-off-by: Patrick Joy <patrick@thinktransit.com.au>
---
 .../zephyr/boards/nrf5340dk_nrf5340_cpuapp.conf  |  2 ++
 .../boards/nrf5340dk_nrf5340_cpuapp.overlay      | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)
 create mode 100644 ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.conf
 create mode 100644 ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.overlay

diff --git a/ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.conf b/ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.conf
new file mode 100644
index 000000000..b4aed364a
--- /dev/null
+++ b/ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.conf
@@ -0,0 +1,2 @@
+CONFIG_FLASH=y
+CONFIG_FLASH_MAP=y
diff --git a/ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.overlay b/ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.overlay
new file mode 100644
index 000000000..7310d1e55
--- /dev/null
+++ b/ports/zephyr/boards/nrf5340dk_nrf5340_cpuapp.overlay
@@ -0,0 +1,16 @@
+// Replace default internal storage partition with external flash
+
+/delete-node/ &storage_partition;
+
+&mx25r64 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		storage_partition: partition@0 {
+			reg = <0x00000000 0x800000>;
+			label = "storage";
+		};
+	};
+};