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boards: nxp: frdm_mcxn947: add support for USDHC0

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Add support for USDHC0 controller on FRDM_MCXN947 board. This support
was verified using the `tests/subsys/sd/sdmmc` and
`tests/subsys/sd/sdio` testcases. Note that this board does not ship
with the SD header (J12) populated by default, so the user must populate
one.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2024-05-10 22:07:45 +00:00 • committed by Anas Nashif
commit f0af6aa8b2
7 changed files with 57 additions and 0 deletions
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5
boards/nxp/frdm_mcxn947/board.c
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@ -192,6 +192,11 @@ static int frdm_mcxn947_init(void)
CLOCK_AttachClk(kPLL0_to_CTIMER4);
#endif
#if DT_NODE_HAS_STATUS(DT_NODELABEL(usdhc0), okay)
CLOCK_SetClkDiv(kCLOCK_DivUSdhcClk, 1u);
CLOCK_AttachClk(kFRO_HF_to_USDHC);
#endif
#if CONFIG_FLASH_MCUX_FLEXSPI_NOR
/* We downclock the FlexSPI to 50MHz, it will be set to the
* optimum speed supported by the Flash device during FLEXSPI