config: arch: riscv: add initial 64-bit support

Add initial rv64 support.  Originally based on suggestions from
Franz Flasch <franz.flasch@gmx.at>.

Cc: Franz Flasch <franz.flasch@gmx.at>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Paul Walmsley 2018-09-10 13:28:56 -07:00
parent d5900debd3
commit 694580fa60

View File

@ -4,9 +4,12 @@
## depends on EXPERIMENTAL
##
## select ARCH_SUPPORTS_32
## select ARCH_SUPPORTS_64
## select ARCH_DEFAULT_32
## select ARCH_SUPPORTS_BOTH_MMU
## select ARCH_SUPPORTS_WITH_ABI
## select ARCH_SUPPORTS_WITH_ARCH
## select ARCH_SUPPORTS_WITH_TUNE
## select GCC_REQUIRE_7_or_later
## help The RISC-V architecture, as defined by: