soc: nordic: Add initial support for nRF54H20

Add Kconfig symbols that allow building for the nRF54H20 (not EngA) SoC.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>

soc/nordic/common/vpr/Kconfig.defconfig

@@ -5,7 +5,7 @@ CPU_PATH := $(dt_nodelabel_path,cpu)
 CPU_ID := $(dt_node_reg_addr_int,$(CPU_PATH))
 
 config RV_BOOT_HART
-	default $(CPU_ID)
+	default $(CPU_ID) if SOC_NRF54H20_ENGA_CPUPPR
 
 config RISCV_MCAUSE_EXCEPTION_MASK
 	default 0xFFF

soc/nordic/nrf54h/CMakeLists.txt

@@ -1,7 +1,7 @@
 # Copyright (c) 2024 Nordic Semiconductor
 # SPDX-License-Identifier: Apache-2.0
 
-if(CONFIG_SOC_NRF54H20_ENGA_CPUAPP OR CONFIG_SOC_NRF54H20_ENGA_CPURAD)
+if(CONFIG_ARM)
   zephyr_include_directories(.)
   zephyr_library_sources(soc.c)
 endif()

soc/nordic/nrf54h/Kconfig

@@ -7,6 +7,31 @@ config SOC_SERIES_NRF54HX
 	select HAS_NRFX
 	select HAS_NORDIC_DRIVERS
 
+config SOC_NRF54H20_CPUAPP
+	select ARM
+	select ARMV8_M_DSP
+	select CPU_CORTEX_M33
+	select CPU_HAS_ARM_MPU
+	select CPU_HAS_ARM_SAU
+	select CPU_HAS_DCACHE
+	select CPU_HAS_ICACHE
+	select CPU_HAS_FPU
+	select HAS_SEGGER_RTT if ZEPHYR_SEGGER_MODULE
+
+config SOC_NRF54H20_CPURAD
+	select ARM
+	select ARMV8_M_DSP
+	select CPU_CORTEX_M33
+	select CPU_HAS_ARM_MPU
+	select CPU_HAS_ARM_SAU
+	select CPU_HAS_DCACHE
+	select CPU_HAS_ICACHE
+	select CPU_HAS_FPU
+	select HAS_SEGGER_RTT if ZEPHYR_SEGGER_MODULE
+
+config SOC_NRF54H20_CPUPPR
+	depends on RISCV_CORE_NORDIC_VPR
+
 config SOC_NRF54H20_ENGA_CPUAPP
 	select ARM
 	select ARMV8_M_DSP

soc/nordic/nrf54h/Kconfig.defconfig.nrf54h20_cpuapp

@@ -0,0 +1,14 @@
+# Nordic Semiconductor nRF54H20 Application MCU
+
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_NRF54H20_CPUAPP
+
+config NUM_IRQS
+	default 471
+
+config NRF_REGTOOL_GENERATE_UICR
+	default y
+
+endif # SOC_NRF54H20_CPUAPP

soc/nordic/nrf54h/Kconfig.defconfig.nrf54h20_cpuppr

@@ -0,0 +1,12 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_NRF54H20_CPUPPR
+
+config NUM_IRQS
+	default 496
+
+config SYS_CLOCK_TICKS_PER_SEC
+	default 1000
+
+endif # SOC_NRF54H20_CPUPPR

soc/nordic/nrf54h/Kconfig.defconfig.nrf54h20_cpurad

@@ -0,0 +1,14 @@
+# Nordic Semiconductor nRF54H20 Radio MCU
+
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_NRF54H20_CPURAD
+
+config NUM_IRQS
+	default 471
+
+config NRF_REGTOOL_GENERATE_UICR
+	default y
+
+endif # SOC_NRF54H20_CPURAD

soc/nordic/nrf54h/Kconfig.soc

@@ -9,6 +9,24 @@ config SOC_NRF54H20
 	help
 	  nRF54H20
 
+config SOC_NRF54H20_CPUAPP
+	bool
+	select SOC_NRF54H20
+	help
+	  nRF54H20 CPUAPP
+
+config SOC_NRF54H20_CPURAD
+	bool
+	select SOC_NRF54H20
+	help
+	  nRF54H20 CPURAD
+
+config SOC_NRF54H20_CPUPPR
+	bool
+	select SOC_NRF54H20
+	help
+	  nRF54H20 CPUPPR
+
 config SOC_NRF54H20_ENGA_CPUAPP
 	bool
 	select SOC_NRF54H20