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tests: drivers: mspi: hpf: Add App fault handler test
Add test case for app fault to check timeout handler Signed-off-by: Jakub Zymelka <[email protected]>
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‎CODEOWNERS‎

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/tests/drivers/flash_patch/ @nrfconnect/ncs-pluto
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/tests/drivers/fprotect/ @nrfconnect/ncs-pluto
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/tests/drivers/lpuart/ @nordic-krch
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/tests/drivers/mspi/app_fault_timer/ @nrfconnect/ncs-low-level-test @nrfconnect/ncs-ll-ursus
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/tests/drivers/nrfx_integration_test/ @nrfconnect/ncs-co-drivers
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/tests/drivers/pwm/gpio_loopback/ @nrfconnect/ncs-low-level-test
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/tests/drivers/uart/ @nrfconnect/ncs-low-level-test

‎tests/drivers/mspi/app_fault_timer/CMakeLists.txt‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(hpf_app_fault_timer)
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target_sources(app PRIVATE src/main.c)

‎tests/drivers/mspi/app_fault_timer/prj.conf‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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CONFIG_TEST=y
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CONFIG_ZTEST=y
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CONFIG_FLASH=y
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CONFIG_FLASH_PAGE_LAYOUT=y

‎tests/drivers/mspi/app_fault_timer/src/main.c‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/ztest.h>
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#include <zephyr/drivers/counter.h>
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#include <zephyr/drivers/flash.h>
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#include <zephyr/devicetree.h>
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#define TEST_AREA_DEV_NODE DT_INST(0, jedec_mspi_nor)
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#define TEST_AREA_OFFSET 0x0
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#define EXPECTED_SIZE 64
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#define TIMEOUT 15000000
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static const struct device *const flash_dev = DEVICE_DT_GET(TEST_AREA_DEV_NODE);
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static const struct device *const flpr_fault_timer = DEVICE_DT_GET(DT_NODELABEL(fault_timer));
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static volatile bool timer_irq;
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static void timer_irq_handler(const struct device *dev, void *user_data)
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{
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ARG_UNUSED(dev);
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ARG_UNUSED(user_data);
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timer_irq = true;
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}
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static void fault_timer_before(void *arg)
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{
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ARG_UNUSED(arg);
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int rc;
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const struct counter_top_cfg top_cfg = {
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.callback = timer_irq_handler,
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.user_data = NULL,
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.flags = 0,
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.ticks = counter_us_to_ticks(flpr_fault_timer, CONFIG_MSPI_NRFE_FAULT_TIMEOUT)
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};
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zassert_true(device_is_ready(flash_dev));
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zassert_true(device_is_ready(flpr_fault_timer));
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rc = counter_set_top_value(flpr_fault_timer, &top_cfg);
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zassert_equal(rc, 0, "Cannot set top value");
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timer_irq = false;
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}
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/**
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* @brief Check if the timer is not triggered when the flash is being read.
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* When we send commands to the flash the timer should be reset and stopped by FLPR.
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* If it is not then we will get an IRQ after CONFIG_MSPI_NRFE_FAULT_TIMEOUT.
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*/
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ZTEST(hpf_fault_timer, test_timer_timeout)
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{
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int rc;
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uint8_t buf[EXPECTED_SIZE];
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volatile uint32_t count;
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/* 1. The timer is started and the flash is read. */
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rc = counter_start(flpr_fault_timer);
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zassert_equal(rc, 0, "Cannot start timer");
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rc = flash_read(flash_dev, TEST_AREA_OFFSET, buf, EXPECTED_SIZE);
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zassert_equal(rc, 0, "Cannot read flash");
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while (timer_irq == false && count < TIMEOUT) {
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count++;
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}
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count = 0;
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/* 2. The timer should not trigger an IRQ. */
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zassert_false(timer_irq, "Timer IRQ triggered");
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/* 3. The timer is started again and the flash is not read. */
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rc = counter_start(flpr_fault_timer);
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zassert_equal(rc, 0, "Cannot start timer");
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zassert_false(timer_irq, "Timer IRQ triggered");
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while (timer_irq == false && count < TIMEOUT) {
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count++;
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}
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/* 4. FLPR is not supposed to stop the counter here,
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* because it does not receive any message.
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* The timer should trigger an IRQ.
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*/
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zassert_true(timer_irq, "Timer IRQ not triggered");
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rc = counter_stop(flpr_fault_timer);
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zassert_equal(rc, 0, "Cannot stop timer");
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}
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ZTEST_SUITE(hpf_fault_timer, NULL, NULL, fault_timer_before, NULL, NULL);

‎tests/drivers/mspi/app_fault_timer/sysbuild.conf‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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SB_CONFIG_VPR_LAUNCHER=n
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SB_CONFIG_PARTITION_MANAGER=n
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SB_CONFIG_SDP=y
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SB_CONFIG_SDP_MSPI=y

‎tests/drivers/mspi/app_fault_timer/testcase.yaml‎

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common:
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tags:
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- ci_tests_drivers_sdp
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- drivers
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- mspi
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harness: ztest
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tests:
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drivers.mspi.hpf_app_fault_timer:
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platform_allow:
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- nrf54l15dk/nrf54l15/cpuapp
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integration_platforms:
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- nrf54l15dk/nrf54l15/cpuapp

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