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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
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
bool
select CPU_CORTEX_A
@ -25,6 +32,13 @@ config CPU_CORTEX_A72
help
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
bool
help
@ -101,6 +115,27 @@ config ARMV8_A
so that it can support some features included in the AArch64 state.
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
default y
@ -109,6 +144,7 @@ config GEN_IRQ_VECTOR_TABLE
config ARM_MMU
bool "ARM MMU Support"
default n if CPU_AARCH64_CORTEX_R
default y
select MMU
select SRAM_REGION_PERMISSIONS
@ -215,4 +251,4 @@ config MAX_XLAT_TABLES
endif # ARM_MMU
endif # CPU_CORTEX_A
endif # CPU_CORTEX_A || CPU_AARCH64_CORTEX_R