diff options
| author | Marek Vasut <marex@denx.de> | 2017-04-19 13:19:02 +0200 |
|---|---|---|
| committer | Ley Foon Tan <ley.foon.tan@intel.com> | 2017-05-08 16:59:19 +0800 |
| commit | edebea98777d7090ea14bdce2e38e6798557729d (patch) | |
| tree | 42d00a6c8e42ed6d2c04bf8d78c21fc2a0247ccf /arch/nios2/platform | |
| parent | 23460839b983d5d8d47fe90f341599f66523dd81 (diff) | |
nios2: Add CDX support
Add support for the CDX Code Density Extensions present in
Nios II R2 . This introduces new 16bit instruction set to
improve code density while retaining support for the 32bit
Nios II R2 instructions.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Ley Foon Tan <lftan@altera.com>
Diffstat (limited to 'arch/nios2/platform')
| -rw-r--r-- | arch/nios2/platform/Kconfig.platform | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/nios2/platform/Kconfig.platform b/arch/nios2/platform/Kconfig.platform index b6a8bfd59491..74c1aaf588b8 100644 --- a/arch/nios2/platform/Kconfig.platform +++ b/arch/nios2/platform/Kconfig.platform @@ -90,6 +90,15 @@ config NIOS2_BMX_SUPPORT the BMX Bit Manipulation Extension instructions. Enables the -mbmx compiler flag. +config NIOS2_CDX_SUPPORT + bool "Enable CDX instructions" + depends on NIOS2_ARCH_REVISION = 2 + default n + help + Set to true if you configured the Nios II R2 to include + the CDX Bit Manipulation Extension instructions. Enables + the -mcdx compiler flag. + config NIOS2_FPU_SUPPORT bool "Custom floating point instr support" default n |