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tests: drivers: add fracn test for stm32h7 clock configuration tests

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add overlay to use fracn with HSI in clock configuration tests for
stm32h7

Signed-off-by: Nathan Olff <nathan@kickmaker.net>
This commit is contained in:
Nathan Olff 2024-09-09 13:38:16 +02:00 • committed by Carles Cufí
commit eb3f718b2c
2 changed files with 44 additions and 0 deletions
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37
tests/drivers/clock_control/stm32_clock_configuration/stm32h7_core/boards/pll_hsi_fracn_550.overlay Normal file
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@ -0,0 +1,37 @@
/*
* Copyright (c) 2024 Kickmaker
*
* SPDX-License-Identifier: Apache-2.0
*/
/*
* Warning: This overlay performs configuration from clean sheet.
* It is assumed that it is applied after clear_clocks.overlay file.
*/
&clk_hsi {
hsi-div = <1>; /* HSI RC: 64MHz, hsi_clk = 64MHz */
status = "okay";
};
&pll {
div-m = <4>;
mul-n = <34>;
div-p = <1>;
div-q = <4>;
div-r = <2>;
clocks = <&clk_hsi>;
fracn = <3072>;
status = "okay";
};
&rcc {
clocks = <&pll>;
clock-frequency = <DT_FREQ_M(550)>;
d1cpre = <1>;
hpre = <2>;
d1ppre = <2>;
d2ppre1 = <2>;
d2ppre2 = <2>;
d3ppre = <2>;
};

7
tests/drivers/clock_control/stm32_clock_configuration/stm32h7_core/testcase.yaml
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@ -46,3 +46,10 @@ tests:
- stm32h735g_disco
integration_platforms:
- nucleo_h723zg
drivers.clock.stm32_clock_configuration.h7_core.sysclksrc_pll_hsi_fracn_550:
extra_args: DTC_OVERLAY_FILE="boards/clear_clocks.overlay;boards/pll_hsi_fracn_550.overlay"
platform_allow:
- nucleo_h723zg
- stm32h735g_disco
integration_platforms:
- nucleo_h723zg