From 26d56eb0a5bd2c40c5b9cb98650997b5606a9cf8 Mon Sep 17 00:00:00 2001
From: Andrej Butok <andrey.butok@nxp.com>
Date: Tue, 4 Jun 2024 15:47:48 +0200
Subject: [PATCH] boards: nxp: frdm_k22f: fix the flash size value

- The MK22FN512VLH12 chip, installed on frdm_k22f,
  has 512 KB of Program Flash and 128KB SRAM
  according to the K22P121M120SF7RM.pdf manual (page 55).
- Fix the flash size to 512KB (was 1MB).
- Add nxp_k22fn512.dtsi with correct flash size value.

Signed-off-by: Andrej Butok <andrey.butok@nxp.com>
---
 boards/nxp/frdm_k22f/doc/index.rst |  2 +-
 boards/nxp/frdm_k22f/frdm_k22f.dts |  3 ++-
 dts/arm/nxp/nxp_k22fn512.dtsi      | 11 +++++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 dts/arm/nxp/nxp_k22fn512.dtsi

diff --git a/boards/nxp/frdm_k22f/doc/index.rst b/boards/nxp/frdm_k22f/doc/index.rst
index f0f98048561..b92fa508cd0 100644
--- a/boards/nxp/frdm_k22f/doc/index.rst
+++ b/boards/nxp/frdm_k22f/doc/index.rst
@@ -26,7 +26,7 @@ MCUs.
 Hardware
 ********
 
-- MK22FN512VLH12 (120 MHz, 1 MB flash memory, 256 KB RAM, low-power,
+- MK22FN512VLH12 (120 MHz, 512 KB flash memory, 128 KB RAM, low-power,
   crystal-less USB, and 64 pin Low profile Quad Flat Package (LQFP))
 - Dual role USB interface with micro-B USB connector
 - RGB LED
diff --git a/boards/nxp/frdm_k22f/frdm_k22f.dts b/boards/nxp/frdm_k22f/frdm_k22f.dts
index 587aaa65ee1..b3a085560fb 100644
--- a/boards/nxp/frdm_k22f/frdm_k22f.dts
+++ b/boards/nxp/frdm_k22f/frdm_k22f.dts
@@ -1,12 +1,13 @@
 /*
  * Copyright (c) 2018 Prevas A/S
+ * Copyright 2024 NXP
  *
  * SPDX-License-Identifier: Apache-2.0
  */
 
 /dts-v1/;
 
-#include <nxp/nxp_k2x.dtsi>
+#include <nxp/nxp_k22fn512.dtsi>
 #include <zephyr/dt-bindings/pwm/pwm.h>
 #include "frdm_k22f-pinctrl.dtsi"
 #include <zephyr/dt-bindings/input/input-event-codes.h>
diff --git a/dts/arm/nxp/nxp_k22fn512.dtsi b/dts/arm/nxp/nxp_k22fn512.dtsi
new file mode 100644
index 00000000000..76244b94d59
--- /dev/null
+++ b/dts/arm/nxp/nxp_k22fn512.dtsi
@@ -0,0 +1,11 @@
+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <nxp/nxp_k2x.dtsi>
+
+&flash0 {
+	reg = <0 DT_SIZE_K(512)>;
+};