From b0d731d9563cd6fb8bd6c8304065e550d97a22c7 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 30 Mar 2026 01:14:12 +0200 Subject: arm: Add ARMv8-M aarch32 support Add configuration for ARMv8-M aarch32 core, which are currently Cortex-M23/M33 cores. These cores are treated similar to ARMv7-M cores, except the code has to be compiled with matching compiler -march=armv8-m.main flag . These cores have no MMU, they have MPU, which is currently not configured. Unlike ARMv7-M, these cores have 512 interrupt vectors. While the SYS_ARM_ARCH should be set to 8, it is set to 7 because all of the initialization code is built from arch/arm/cpu/armv7m and not armv8. Furthermore, CONFIG_ARM64 must be disabled, although DTs for devices using these cores do come from arch/arm64/boot/dts. To avoid excess duplication in Makefiles, introduce one new Kconfig symbol, CPU_V7M_V8M. The CPU_V7M_V8M cover both ARMv7-M and ARMv8-M cores. Signed-off-by: Marek Vasut Acked-by: Udit Kumar --- lib/efi_selftest/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib') diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile index 842433f68aa..67102648703 100644 --- a/lib/efi_selftest/Makefile +++ b/lib/efi_selftest/Makefile @@ -60,7 +60,7 @@ obj-$(CONFIG_EFI_DEVICE_PATH_TO_TEXT) += efi_selftest_devicepath.o obj-$(CONFIG_EFI_UNICODE_COLLATION_PROTOCOL2) += \ efi_selftest_unicode_collation.o -ifeq ($(CONFIG_CPU_V7A)$(CONFIG_CPU_V7M)$(CONFIG_CPU_V7R),y) +ifeq ($(CONFIG_CPU_V7A)$(CONFIG_CPU_V7M_V8M)$(CONFIG_CPU_V7R),y) obj-y += efi_selftest_unaligned.o endif obj-$(CONFIG_EFI_LOADER_HII) += efi_selftest_hii.o -- cgit v1.3.1