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boards: nxp: frdm_mcxn947: enable GPIO in all modes

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For CPU1 access, enable GPIO access in non-secure and non-privilege
modes.

Signed-off-by: Derek Snell <derek.snell@nxp.com>
This commit is contained in:
Derek Snell 2025-04-15 16:04:23 -04:00 • committed by Benjamin Cabé
commit d75fe02adf
1 changed files with 19 additions and 1 deletions
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20
boards/nxp/frdm_mcxn947/board.c
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@ -1,5 +1,5 @@
/*
* Copyright 2024 NXP
* Copyright 2024-2025 NXP
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/init.h>
@ -84,6 +84,19 @@ __ramfunc static void enable_cache64(void)
}
#endif
static void unsecure_gpio(GPIO_Type * base)
{
/* Enables CPU1 to access GPIO registers
* Pins and interrupts can be configured in non-secure access
*/
base->PCNS = 0xFFFFFFFFU;
base->ICNS = GPIO_ICNS_NSE1_MASK | GPIO_ICNS_NSE0_MASK;
/* Pins and interrupts can be configured in non-privilege access */
base->PCNP = 0xFFFFFFFFU;
base->ICNP = GPIO_ICNP_NPE1_MASK | GPIO_ICNP_NPE0_MASK;
}
void board_early_init_hook(void)
{
power_mode_od();
@ -183,22 +196,27 @@ void board_early_init_hook(void)
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(gpio0))
CLOCK_EnableClock(kCLOCK_Gpio0);
unsecure_gpio(GPIO0);
#endif
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(gpio1))
CLOCK_EnableClock(kCLOCK_Gpio1);
unsecure_gpio(GPIO1);
#endif
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(gpio2))
CLOCK_EnableClock(kCLOCK_Gpio2);
unsecure_gpio(GPIO2);
#endif
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(gpio3))
CLOCK_EnableClock(kCLOCK_Gpio3);
unsecure_gpio(GPIO3);
#endif
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(gpio4))
CLOCK_EnableClock(kCLOCK_Gpio4);
unsecure_gpio(GPIO4);
#endif
#if DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(dac0))