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imx9: add config for waking WFI at systick

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This commit is contained in:
Andre Heinemans 2024-12-18 09:06:50 +01:00 committed by Xiang Xiao
parent c7ccc0f9ec
commit 01e05c2660
2 changed files with 10 additions and 0 deletions
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7
arch/arm/src/imx9/Kconfig
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@ -46,6 +46,13 @@ config IMX9_IOMUX_OVER_SCMI
endif
config IMX9_WFI_AWAKES_AT_SYSTICK
bool "WFI awakes at systick interrupts"
default y
---help---
Configure the GPC to wake up from systick interrupts at WFI
instruction
menu "i.MX9 Peripheral Selection"
config IMX9_EDMA

3
arch/arm/src/imx9/imx9_clockconfig.c
View file

@ -78,6 +78,8 @@
void imx9_clockconfig(void)
{
#ifdef CONFIG_IMX9_WFI_AWAKES_AT_SYSTICK
/* Keep the system clock running so SYSTICK can wake up the system from
* wfi.
*/
@ -90,6 +92,7 @@ void imx9_clockconfig(void)
modifyreg32(IMX9_GPC_CTRL_CMC_MISC(IMX9_GPC_CTRL_CM7_BASE),
IMX9_GPC_CTRL_CMC_MISC_SLEEP_HOLD_EN_FLAG, 0);
#endif
/* Cortex-M33 with SM does PLL initalization */
}