From 6ffffbe84c224625a4095a5b196a103c624c54d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Ku=C5=BAnia?= <rafal.kuznia@nordicsemi.no>
Date: Mon, 6 May 2024 10:36:04 +0200
Subject: [PATCH] boards: nordic: add mx25uw6345g flash node to nRF54H20dk
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The nRF54H20dk has mx25uw6345g flash device on board. Added DTS
description and pinctrl configuration.

The flash device node is disabled by default. The flash device needs to
be powered-on using the nRF Connect for Desktop Board Configurator
application.

(cherry picked from commit e9c6990220f974cd6070b8acd34d555556cd9bef)

Original-Signed-off-by: Rafał Kuźnia <rafal.kuznia@nordicsemi.no>
GitOrigin-RevId: e9c6990220f974cd6070b8acd34d555556cd9bef
Change-Id: I3733386f42549a7d53a0bcf554708332de332182
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/5520890
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Tested-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
---
 .../nrf54h20dk_nrf54h20-pinctrl.dtsi          |  9 ++++++
 .../nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp.dts | 29 +++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20-pinctrl.dtsi b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20-pinctrl.dtsi
index 6c6da3fa747..0cfe8a24c43 100644
--- a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20-pinctrl.dtsi
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20-pinctrl.dtsi
@@ -50,4 +50,13 @@
 				<NRF_PSEL(UART_CTS, 2, 5)>;
 		};
 	};
+
+	/omit-if-no-ref/ exmif_default: exmif_default {
+		group1 {
+			psels = <NRF_PSEL(EXMIF_CK, 6, 0)>,
+				<NRF_PSEL(EXMIF_DQ0, 6, 7)>,
+				<NRF_PSEL(EXMIF_DQ1, 6, 5)>;
+			nordic,drive-mode = <NRF_DRIVE_H0H1>;
+		};
+	};
 };
diff --git a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp.dts b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp.dts
index a62c7c88fe6..fd838f3757d 100644
--- a/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp.dts
+++ b/boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuapp.dts
@@ -195,3 +195,32 @@ ipc0: &cpuapp_cpurad_ipc {
 	pinctrl-names = "default", "sleep";
 	hw-flow-control;
 };
+
+&gpio6 {
+	status = "okay";
+};
+
+&exmif {
+	cs-gpios = <&gpio6 3 GPIO_ACTIVE_LOW>;
+	pinctrl-0 = <&exmif_default>;
+	pinctrl-names = "default";
+	status = "okay";
+	mx25uw63: mx25uw6345g@0 {
+		compatible = "jedec,spi-nor";
+		status = "disabled";
+		reg = <0>;
+		spi-max-frequency = <DT_FREQ_M(48)>;
+		jedec-id = [c2 84 37];
+		sfdp-bfp = [
+			e5 20 8a ff  ff ff ff 03  00 ff 00 ff  00 ff 00 ff
+			ee ff ff ff  ff ff 00 ff  ff ff 00 ff  0c 20 10 d8
+			00 ff 00 ff  87 79 01 00  84 12 00 c4  cc 04 67 46
+			30 b0 30 b0  f4 bd d5 5c  00 00 00 ff  10 10 00 20
+			00 00 00 00  00 00 7c 23  48 00 00 00  00 00 88 88
+		];
+		size = <67108864>;
+		has-dpd;
+		t-enter-dpd = <10000>;
+		t-exit-dpd = <30000>;
+	};
+};