soc: st: stm32n6: configure regulator for best performance

Configure the main internal Regulator output voltage for best performance
on STM32N6.

Signed-off-by: Guillaume Gautier <[email protected]>

Author: gautierg-st

soc/st/stm32/stm32n6x/soc.c

@@ -54,6 +54,9 @@ void soc_early_init_hook(void)
 	/* Enable PWR */
 	LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_PWR);
 
+	/* Set the main internal Regulator output voltage for best performance */
+	LL_PWR_SetRegulVoltageScaling(LL_PWR_REGU_VOLTAGE_SCALE0);
+
 	/* Enable IOs */
 	LL_PWR_EnableVddIO2();
 	LL_PWR_EnableVddIO3();