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boards: frdm_mcxn947: Add support for the QSPI flash

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Add support for the QSPI flash connected over FlexSPI

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
This commit is contained in:
Mahesh Mahadevan 2024-03-19 14:49:00 -05:00 • committed by Anas Nashif
commit 517753e475
5 changed files with 77 additions and 0 deletions
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8
boards/nxp/frdm_mcxn947/board.c
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@ -6,6 +6,7 @@
#include <zephyr/device.h>
#include <fsl_clock.h>
#include <fsl_spc.h>
#include <soc.h>
/* Board xtal frequency in Hz */
#define BOARD_XTAL0_CLK_HZ 24000000U
@ -66,6 +67,13 @@ static int frdm_mcxn947_init(void)
/* Enable FRO HF(48MHz) output */
CLOCK_SetupFROHFClocking(48000000U);
#ifdef CONFIG_FLASH_MCUX_FLEXSPI_XIP
/* Call function flexspi_clock_safe_config() to move FleXSPI clock to a stable
* clock source when updating the PLL if in XIP (execute code from FlexSPI memory
*/
flexspi_clock_safe_config();
#endif
/* Set up PLL0 */
const pll_setup_t pll0Setup = {
.pllctrl = SCG_APLLCTRL_SOURCE(1U) | SCG_APLLCTRL_SELI(27U) |