tests: drivers: flash: Test newly introduced MSPI driver features

These features are:
- soft reset
- 4B addressing (SPI mode)
- supply gpios

Signed-off-by: Bartosz Miller <[email protected]>

Author: nordic-bami

tests/drivers/flash/common/boards/mx25uw63_low_freq.overlay

@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&mx25uw63 {
+	status = "okay";
+	mspi-max-frequency = <DT_FREQ_K(256)>;
+};

tests/drivers/flash/common/boards/mx25uw63_single_io_4B_addr_sreset.overlay

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+
+	/delete-node/ exmif_default;
+	/delete-node/ exmif_sleep;
+
+	exmif_default: exmif_default {
+		group1 {
+			psels = <NRF_PSEL(EXMIF_CK, 6, 0)>,
+				<NRF_PSEL(EXMIF_RWDS, 6, 2)>,
+				<NRF_PSEL(EXMIF_DQ0, 6, 7)>,
+				<NRF_PSEL(EXMIF_DQ1, 6, 5)>,
+				<NRF_PSEL(EXMIF_DQ2, 6, 10)>,
+				<NRF_PSEL(EXMIF_DQ3, 6, 9)>,
+				<NRF_PSEL(EXMIF_DQ4, 6, 11)>,
+				<NRF_PSEL(EXMIF_DQ5, 6, 8)>,
+				<NRF_PSEL(EXMIF_DQ6, 6, 6)>,
+				<NRF_PSEL(EXMIF_DQ7, 6, 4)>;
+			nordic,drive-mode = <NRF_DRIVE_H0H1>;
+		};
+	};
+
+	exmif_sleep: exmif_sleep {
+		group1 {
+			low-power-enable;
+			psels = <NRF_PSEL(EXMIF_CK, 6, 0)>,
+				<NRF_PSEL(EXMIF_RWDS, 6, 2)>,
+				<NRF_PSEL(EXMIF_DQ0, 6, 7)>,
+				<NRF_PSEL(EXMIF_DQ1, 6, 5)>,
+				<NRF_PSEL(EXMIF_DQ2, 6, 10)>,
+				<NRF_PSEL(EXMIF_DQ3, 6, 9)>,
+				<NRF_PSEL(EXMIF_DQ4, 6, 11)>,
+				<NRF_PSEL(EXMIF_DQ5, 6, 8)>,
+				<NRF_PSEL(EXMIF_DQ6, 6, 6)>,
+				<NRF_PSEL(EXMIF_DQ7, 6, 4)>;
+		};
+	};
+
+};
+
+&gpio6 {
+	status = "okay";
+};
+
+&exmif {
+	status = "okay";
+	pinctrl-0 = <&exmif_default>;
+	pinctrl-1 = <&exmif_sleep>;
+	pinctrl-names = "default", "sleep";
+	ce-gpios = <&gpio6 3 GPIO_ACTIVE_LOW>;
+};
+
+&mx25uw63 {
+	status = "okay";
+	mspi-max-frequency = <DT_FREQ_M(50)>;
+	mspi-io-mode = "MSPI_IO_MODE_SINGLE";
+	use-4byte-addressing;
+	initial-soft-reset;
+};

tests/drivers/flash/common/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

@@ -4,6 +4,16 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+/ {
+	zephyr,user {
+		test-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
 &gpio6 {
 	status = "okay";
 	zephyr,pm-device-runtime-auto;
@@ -16,4 +26,5 @@
 
 &mx25uw63 {
 	status = "okay";
+	supply-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
 };

tests/drivers/flash/common/src/main.c

@@ -9,6 +9,7 @@
 #include <zephyr/drivers/flash.h>
 #include <zephyr/devicetree.h>
 #include <zephyr/storage/flash_map.h>
+#include <zephyr/drivers/gpio.h>
 
 #if defined(CONFIG_NORDIC_QSPI_NOR)
 #define TEST_AREA_DEV_NODE	DT_INST(0, nordic_qspi_nor)
@@ -327,6 +328,22 @@ ZTEST(flash_driver, test_flash_erase)
 	zassert_not_equal(expected[0], erase_value, "These values shall be different");
 }
 
+ZTEST(flash_driver, test_supply_gpios_control)
+{
+	if (!DT_NODE_HAS_PROP(TEST_AREA_DEV_NODE, supply_gpios)) {
+		ztest_test_skip();
+	}
+
+#if DT_NODE_HAS_PROP(DT_PATH(zephyr_user), test_gpios)
+	const struct gpio_dt_spec test_gpio =
+		GPIO_DT_SPEC_GET(DT_PATH(zephyr_user), test_gpios);
+	zassert_true(gpio_is_ready_dt(&test_gpio), "Test GPIO is not ready\n");
+	zassert_ok(gpio_pin_configure_dt(&test_gpio, GPIO_INPUT | GPIO_PULL_DOWN),
+		   "Failed to configure test pin\n");
+	zassert_equal(gpio_pin_get(test_gpio.port, test_gpio.pin), 1, "Supply GPIO is not set\n");
+#endif
+}
+
 struct test_cb_data_type {
 	uint32_t page_counter; /* used to count how many pages was iterated */
 	uint32_t exit_page;    /* terminate iteration when this page is reached */

tests/drivers/flash/common/testcase.yaml

@@ -183,3 +183,13 @@ tests:
     extra_args:
       - DTC_OVERLAY_FILE="./boards/${BOARD}_qspi_nor.overlay"
       - CONF_FILE="./prj.conf ./boards/${BOARD}_qspi_nor.conf"
+  drivers.flash.common.mspi_single_io.4B_addr_soft_reset:
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - EXTRA_DTC_OVERLAY_FILE=boards/mx25uw63_single_io_4B_addr_sreset.overlay
+  drivers.flash.common.mspi_low_frequency:
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    extra_args:
+      - EXTRA_DTC_OVERLAY_FILE=boards/mx25uw63_low_freq.overlay