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boards: nxp: mimxrt700_evk: use ostimer as kernel tick for cm33_cpu0/1

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enable ostimer clock
enable os_timer_cpu0/1 for cm33_cpu0/1

Signed-off-by: Lucien Zhao <lucien.zhao@nxp.com>
This commit is contained in:
Lucien Zhao 2025-02-12 16:48:07 +08:00 • committed by Benjamin Cabé
commit d39d420c54
4 changed files with 23 additions and 3 deletions
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6
boards/nxp/mimxrt700_evk/board.c
View file

@ -400,6 +400,12 @@ void board_early_init_hook(void)
CLOCK_AttachClk(kSENSE_BASE_to_ADC);
CLOCK_SetClkDiv(kCLOCK_DivAdcClk, 1U);
#endif
#if (DT_NODE_HAS_STATUS(DT_NODELABEL(os_timer_cpu0), okay) || \
DT_NODE_HAS_STATUS(DT_NODELABEL(os_timer_cpu1), okay))
CLOCK_AttachClk(kLPOSC_to_OSTIMER);
CLOCK_SetClkDiv(kCLOCK_DivOstimerClk, 1U);
#endif
}
static void GlikeyWriteEnable(GLIKEY_Type *base, uint8_t idx)

2
boards/nxp/mimxrt700_evk/doc/index.rst
View file

@ -81,6 +81,8 @@ the hardware features below.
+-----------+------------+-------------------------------------+
| ADC | on-chip | adc |
+-----------+------------+-------------------------------------+
| OS_TIMER | on-chip | os timer |
+-----------+------------+-------------------------------------+
The default configuration can be found in the defconfig file:

8
boards/nxp/mimxrt700_evk/mimxrt700_evk_mimxrt798s_cm33_cpu0.dts
View file

@ -65,8 +65,14 @@
status = "okay";
};
&systick {
/*
* RT700-EVK board cm33_cpu0 uses OS timer as the kernel timer
* In case we need to switch to SYSTICK timer, then
* replace &os_timer with &systick
*/
&os_timer_cpu0 {
status = "okay";
wakeup-source;
};
&flexcomm0{

10
boards/nxp/mimxrt700_evk/mimxrt700_evk_mimxrt798s_cm33_cpu1.dts
View file

@ -1,5 +1,5 @@
/*
* Copyright 2024 NXP
* Copyright 2024-2025 NXP
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -56,8 +56,14 @@
pinctrl-names = "default";
};
&systick {
/*
* RT700-EVK board cm33_cpu1 uses OS timer as the kernel timer
* In case we need to switch to SYSTICK timer, then
* replace &os_timer with &systick
*/
&os_timer_cpu1 {
status = "okay";
wakeup-source;
};
&flexcomm19{