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test: drivers: watchdog: 64bits variables for STM32H7 and STM32F7

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STM32H7 and STM32F7 guarantee last write RAM retention over reset,
only for 64bits.
See details in Application Note AN5342

Signed-off-by: Alexandre Bourdiol <alexandre.bourdiol@st.com>
This commit is contained in:
Alexandre Bourdiol 2020-09-07 13:23:16 +02:00 • committed by Carles Cufí
commit 25e19f89f1
1 changed files with 13 additions and 3 deletions
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16
tests/drivers/watchdog/wdt_basic_api/src/test_wdt.c
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@ -115,20 +115,30 @@ static struct wdt_timeout_cfg m_cfg_wdt0;
static struct wdt_timeout_cfg m_cfg_wdt1;
#endif
#if defined(CONFIG_SOC_SERIES_STM32F7X) || defined(CONFIG_SOC_SERIES_STM32H7X)
/* STM32H7 and STM32F7 guarantee last write RAM retention over reset,
* only for 64bits
* See details in Application Note AN5342
*/
#define DATATYPE uint64_t
#else
#define DATATYPE uint32_t
#endif
/* m_state indicates state of particular test. Used to check whether testcase
* should go to reset state or check other values after reset.
*/
volatile uint32_t m_state __attribute__((section(".noinit.test_wdt")));
volatile DATATYPE m_state __attribute__((section(".noinit.test_wdt")));
/* m_testcase_index is incremented after each test to make test possible
* switch to next testcase.
*/
volatile uint32_t m_testcase_index __attribute__((section(".noinit.test_wdt")));
volatile DATATYPE m_testcase_index __attribute__((section(".noinit.test_wdt")));
/* m_testvalue contains value set in interrupt callback to point whether
* first or second interrupt was fired.
*/
volatile uint32_t m_testvalue __attribute__((section(".noinit.test_wdt")));
volatile DATATYPE m_testvalue __attribute__((section(".noinit.test_wdt")));
#if TEST_WDT_CALLBACK_1
static void wdt_int_cb0(const struct device *wdt_dev, int channel_id)