From 47c3a5bba2b8a578bfc9781a88c20673eb4b971a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Krzysztof=20Chru=C5=9Bci=C5=84ski?=
 <krzysztof.chruscinski@nordicsemi.no>
Date: Fri, 17 Jan 2025 06:01:28 +0100
Subject: [PATCH] soc: nordic: nrf54l: Set SystemCoreClock using frequency from
 DT
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Use cpu clock source frequency as system core clock.

Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
---
 soc/nordic/nrf54l/soc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/soc/nordic/nrf54l/soc.c b/soc/nordic/nrf54l/soc.c
index abb0f778ac33..5c24df49d54d 100644
--- a/soc/nordic/nrf54l/soc.c
+++ b/soc/nordic/nrf54l/soc.c
@@ -32,6 +32,7 @@
 
 #include <nrf_erratas.h>
 #include <system_nrf54l.h>
+#include <zephyr/drivers/clock_control/nrf_clock_control.h>
 
 LOG_MODULE_REGISTER(soc, CONFIG_SOC_LOG_LEVEL);
 
@@ -43,9 +44,9 @@ LOG_MODULE_REGISTER(soc, CONFIG_SOC_LOG_LEVEL);
 static int nordicsemi_nrf54l_init(void)
 {
 	/* Update the SystemCoreClock global variable with current core clock
-	 * retrieved from hardware state.
+	 * retrieved from the DT.
 	 */
-	SystemCoreClockUpdate();
+	SystemCoreClock = NRF_PERIPH_GET_FREQUENCY(DT_NODELABEL(cpu));
 
 #if defined(NRF_APPLICATION)
 	/* Enable ICACHE */