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author | Raphael Poggi <poggi.raph@gmail.com> | 2016-07-04 13:52:44 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-07-06 10:21:16 +0200 |
commit | 053957b306a4a484983857c1069c18be2d1127a4 (patch) | |
tree | 8b4689cd681eca42aef18049bbbc5d65d57e4e89 /arch | |
parent | e9edf7f61b8e70cf4e4ab5d535cd055e8006ab50 (diff) | |
download | barebox-053957b306a4a484983857c1069c18be2d1127a4.tar.gz barebox-053957b306a4a484983857c1069c18be2d1127a4.tar.xz |
arm64: add armv8 Kconfig entries
Signed-off-by: Raphael Poggi <poggi.raph@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/Kconfig | 23 | ||||
-rw-r--r-- | arch/arm/cpu/Kconfig | 33 |
2 files changed, 55 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1fc887ba59..986fdaa2f5 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -315,6 +315,29 @@ config ARM_BOARD_APPEND_ATAG endmenu +choice + prompt "Barebox code model" + help + You should only select this option if you have a workload that + actually benefits from 64-bit processing or if your machine has + large memory. You will only be presented a single option in this + menu if your system does not support both 32-bit and 64-bit modes. + +config 32BIT + bool "32-bit barebox" + depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL + help + Select this option if you want to build a 32-bit barebox. + +config 64BIT + bool "64-bit barebox" + depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL + select ARCH_DMA_ADDR_T_64BIT + help + Select this option if you want to build a 64-bit barebox. + +endchoice + menu "ARM specific settings" config ARM_OPTIMZED_STRING_FUNCTIONS diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig index 4f5d9b6e16..450a6d593a 100644 --- a/arch/arm/cpu/Kconfig +++ b/arch/arm/cpu/Kconfig @@ -1,8 +1,14 @@ comment "Processor Type" +config PHYS_ADDR_T_64BIT + bool + config CPU_32 bool - default y + +config CPU_64 + bool + select PHYS_ADDR_T_64BIT # Select CPU types depending on the architecture selected. This selects # which CPUs we support in the kernel image, and the compiler instruction @@ -69,6 +75,12 @@ config CPU_V7 bool select CPU_32v7 +# ARMv8 +config CPU_V8 + bool + select CPU_64v8 + select CPU_SUPPORTS_64BIT_KERNEL + config CPU_XSC3 bool select CPU_32v4T @@ -84,15 +96,23 @@ config CPU_XSCALE # This defines the compiler instruction set which depends on the machine type. config CPU_32v4T bool + select CPU_32 config CPU_32v5 bool + select CPU_32 config CPU_32v6 bool + select CPU_32 config CPU_32v7 bool + select CPU_32 + +config CPU_64v8 + bool + select CPU_64 comment "processor features" @@ -124,3 +144,14 @@ config CACHE_L2X0 bool "Enable L2x0 PrimeCell" depends on MMU && ARCH_HAS_L2X0 +config SYS_SUPPORTS_32BIT_KERNEL + bool + +config SYS_SUPPORTS_64BIT_KERNEL + bool + +config CPU_SUPPORTS_32BIT_KERNEL + bool + +config CPU_SUPPORTS_64BIT_KERNEL + bool |