[PATCH 4/5] arm64: cputype: Add C1-Nano definitions
From: Linu Cherian <hidden>
Date: 2026-07-01 09:42:27
Also in:
lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Add cputype definitions for C1-Nano. The definition can be found in C1-Nano TRM, https://developer.arm.com/documentation/107753/0002 as part of MIDR_EL1 bit descriptions. This is going to be used in the bbml3 support list. Signed-off-by: Linu Cherian <redacted> --- arch/arm64/include/asm/cputype.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index e41fae46426b..1fa29616e586 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h@@ -100,6 +100,7 @@ #define ARM_CPU_PART_CORTEX_A720AE 0xD89 #define ARM_CPU_PART_C1_ULTRA 0xD8C #define ARM_CPU_PART_NEOVERSE_N3 0xD8E +#define ARM_CPU_PART_C1_NANO 0xD8A #define ARM_CPU_PART_C1_PRO 0xD8B #define ARM_CPU_PART_C1_PREMIUM 0xD90
@@ -195,6 +196,7 @@ #define MIDR_CORTEX_A720AE MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A720AE) #define MIDR_C1_ULTRA MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_C1_ULTRA) #define MIDR_NEOVERSE_N3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N3) +#define MIDR_C1_NANO MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_C1_NANO) #define MIDR_C1_PRO MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_C1_PRO) #define MIDR_C1_PREMIUM MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_C1_PREMIUM) #define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
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2.43.0