From 7697eff4fb9470ba1d06e07e00beb9375825f0c5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?H=C3=A5kon=20Amundsen?= Date: Mon, 23 Jun 2025 07:09:46 +0200 Subject: [PATCH] soc: nrf54h: don't boot radio core if VTOR is not programmed MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- soc/nordic/nrf54h/Kconfig | 7 +++++++ soc/nordic/nrf54h/soc.c | 7 +++++++ 2 files changed, 14 insertions(+) diff --git a/soc/nordic/nrf54h/Kconfig b/soc/nordic/nrf54h/Kconfig index 97423a04e9b..7889287b4a4 100644 --- a/soc/nordic/nrf54h/Kconfig +++ b/soc/nordic/nrf54h/Kconfig @@ -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 diff --git a/soc/nordic/nrf54h/soc.c b/soc/nordic/nrf54h/soc.c index 9f1532f8c5e..5f52a091fa8 100644 --- a/soc/nordic/nrf54h/soc.c +++ b/soc/nordic/nrf54h/soc.c @@ -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;