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arch: arm64: Add Cortex-R82 config

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Add Cortex-R82 config to support the Cortex-R82 processor.
Introduce the new CPU_CORTEX_R_AARCH64 config for the Cortex-R 64-bit
processor.

Since the current CPU_CORTEX_R config has already been bound for
AArch32 in many test cases, we therefore add a new CPU_AARCH64_CORTEX_R
to distinguish from the Cortex-R 32-bit processor.
We do not use CPU_CORTEX_R64 because this name will lead to ambiguity
with processor name like Cortex-R82.

Signed-off-by: Jaxson Han <jaxson.han@arm.com>
This commit is contained in:
Jaxson Han 2020-11-13 15:46:58 +08:00 • committed by Anas Nashif
commit ad1da08f4f
1 changed files with 37 additions and 1 deletions
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38
arch/arm64/core/Kconfig
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@ -11,6 +11,13 @@ config CPU_CORTEX_A
help help
This option signifies the use of a CPU of the Cortex-A family. This option signifies the use of a CPU of the Cortex-A family.
config CPU_AARCH64_CORTEX_R
bool
select CPU_CORTEX
select HAS_FLASH_LOAD_OFFSET
help
This option signifies the use of a CPU of the Cortex-R 64-bit family.
config CPU_CORTEX_A53 config CPU_CORTEX_A53
bool bool
select CPU_CORTEX_A select CPU_CORTEX_A
@ -25,6 +32,13 @@ config CPU_CORTEX_A72
help help
This option signifies the use of a Cortex-A72 CPU This option signifies the use of a Cortex-A72 CPU
config CPU_CORTEX_R82
bool
select CPU_AARCH64_CORTEX_R
select ARMV8_R
help
This option signifies the use of a Cortex-R82 CPU
config HAS_ARM_SMCCC config HAS_ARM_SMCCC
bool bool
help help
@ -101,6 +115,27 @@ config ARMV8_A
so that it can support some features included in the AArch64 state. so that it can support some features included in the AArch64 state.
It supports the T32 and A32 instruction sets. It supports the T32 and A32 instruction sets.
endif # CPU_CORTEX_A
if CPU_AARCH64_CORTEX_R
config ARMV8_R
bool
select ATOMIC_OPERATIONS_BUILTIN
help
This option signifies the use of an ARMv8-R processor
implementation.
From https://developer.arm.com/products/architecture/cpu-architecture/r-profile:
The Armv8-R architecture targets at the Real-time profile. It introduces
virtualization at the highest security level while retaining the
Protected Memory System Architecture (PMSA) based on a Memory Protection
Unit (MPU). It supports the A32 and T32 instruction sets.
endif # CPU_AARCH64_CORTEX_R
if CPU_CORTEX_A || CPU_AARCH64_CORTEX_R
config GEN_ISR_TABLES config GEN_ISR_TABLES
default y default y
@ -109,6 +144,7 @@ config GEN_IRQ_VECTOR_TABLE
config ARM_MMU config ARM_MMU
bool "ARM MMU Support" bool "ARM MMU Support"
default n if CPU_AARCH64_CORTEX_R
default y default y
select MMU select MMU
select SRAM_REGION_PERMISSIONS select SRAM_REGION_PERMISSIONS
@ -215,4 +251,4 @@ config MAX_XLAT_TABLES
endif # ARM_MMU endif # ARM_MMU
endif # CPU_CORTEX_A endif # CPU_CORTEX_A || CPU_AARCH64_CORTEX_R