soc: nxp: imx943: avoid systick stop for M33

The SLEEP_HOLD_EN is enabled by default, that will
gate systick, clear it to fix.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

Author: yangbolu1991

soc/nxp/imx/imx9/imx943/m33/soc.c

@@ -9,6 +9,7 @@
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/firmware/scmi/clk.h>
 #include <zephyr/drivers/firmware/scmi/power.h>
+#include <zephyr/drivers/firmware/scmi/nxp/cpu.h>
 #include <zephyr/dt-bindings/clock/imx943_clock.h>
 #include <zephyr/dt-bindings/power/imx943_power.h>
 #include <soc.h>
@@ -43,6 +44,9 @@ static int soc_netc_clock_init(int clk_id)
 
 static int soc_init(void)
 {
+#if defined(CONFIG_NXP_SCMI_CPU_DOMAIN_HELPERS)
+	struct scmi_cpu_sleep_mode_config cpu_cfg = {0};
+#endif /* CONFIG_NXP_SCMI_CPU_DOMAIN_HELPERS */
 	int ret = 0;
 
 #if defined(CONFIG_ETH_NXP_IMX_NETC) && (DT_CHILD_NUM_STATUS_OKAY(DT_NODELABEL(netc)) != 0)
@@ -101,6 +105,15 @@ static int soc_init(void)
 	}
 #endif
 
+#if defined(CONFIG_NXP_SCMI_CPU_DOMAIN_HELPERS)
+	cpu_cfg.cpu_id = CPU_IDX_M33P_S;
+	cpu_cfg.sleep_mode = CPU_SLEEP_MODE_RUN;
+
+	ret = scmi_cpu_sleep_mode_set(&cpu_cfg);
+	if (ret) {
+		return ret;
+	}
+#endif /* CONFIG_NXP_SCMI_CPU_DOMAIN_HELPERS */
 	return ret;
 }
 

soc/nxp/imx/imx9/imx943/scmi_cpu_soc.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_NXP_IMX943_SCMI_CPU_SOC_H_
+#define ZEPHYR_NXP_IMX943_SCMI_CPU_SOC_H_
+
+#define CPU_IDX_M33P            0U
+#define CPU_IDX_M7P_0           1U
+#define CPU_IDX_A55C0           2U
+#define CPU_IDX_A55C1           3U
+#define CPU_IDX_A55C2           4U
+#define CPU_IDX_A55C3           5U
+#define CPU_IDX_A55P            6U
+#define CPU_IDX_M7P_1           7U
+#define CPU_IDX_M33P_S          8U
+
+#define CPU_SLEEP_MODE_RUN      0U
+#define CPU_SLEEP_MODE_WAIT     1U
+#define CPU_SLEEP_MODE_STOP     2U
+#define CPU_SLEEP_MODE_SUSPEND  3U
+
+#endif /* ZEPHYR_NXP_IMX943_SCMI_CPU_SOC_H_ */