soc: nrf54h: don't boot radio core if VTOR is not programmed (7697eff4) · Commits · Wenxi XU / zephyr

Booting the radio core when it is not programmed will typically cause a reset loop. This can happen when programming multiple images to a device, and the app core image is programmed before the radio core. With this change we avoid the reset loop in that case. Signed-off-by:

Håkon Amundsen <haakon.amundsen@nordicsemi.no>

soc/nordic/nrf54h/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,13 @@ config SOC_NRF54H20_CPURAD_ENABLE
		Radiocore, and also power will be requested to the Radiocore
		subsystem. The Radiocore will then start executing instructions.

		config SOC_NRF54H20_CPURAD_ENABLE_CHECK_VTOR
		bool "Check VTOR before booting Radio core"
		default y
		depends on SOC_NRF54H20_CPURAD_ENABLE
		help
		Verify that VTOR is not 0xFFFFFFFF before booting the Radiocore.

		config SOC_NRF54H20_CPURAD
		select SOC_NRF54H20_CPURAD_COMMON

soc/nordic/nrf54h/soc.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -203,6 +203,13 @@ void soc_late_init_hook(void)
		CONFIG_ROM_START_OFFSET);
		#endif

		if (IS_ENABLED(CONFIG_SOC_NRF54H20_CPURAD_ENABLE_CHECK_VTOR) &&
		sys_read32((mem_addr_t)radiocore_address) == 0xFFFFFFFFUL) {
		LOG_ERR("Radiocore is not programmed, it will not be started");

		return;
		}

		/* Don't wait as this is not yet supported. */
		bool cpu_wait = false;

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