MIPS 32/64 R2 config option.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 68c3028..749fa87 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1055,6 +1055,21 @@
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_HAS_PREFETCH
help
+ Choose this option to build a kernel for release 2 or later of the
+ MIPS32 architecture. Most modern embedded systems with a 32-bit
+ MIPS processor are based on a MIPS32 processor. If you know the
+ specific type of processor in your system, choose those that one
+ otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
+ Release 2 of the MIPS32 architecture is available since several
+ years so chances are you even have a MIPS32 Release 2 processor
+ in which case you should choose CPU_MIPS32_R2 instead for better
+ performance.
+
+config CPU_MIPS32_R2
+ bool "MIPS32 Release 2"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_HAS_PREFETCH
+ help
Choose this option to build a kernel for release 1 or later of the
MIPS32 architecture. Most modern embedded systems with a 32-bit
MIPS processor are based on a MIPS32 processor. If you know the
@@ -1072,6 +1087,22 @@
MIPS processor are based on a MIPS64 processor. If you know the
specific type of processor in your system, choose those that one
otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
+ Release 2 of the MIPS64 architecture is available since several
+ years so chances are you even have a MIPS64 Release 2 processor
+ in which case you should choose CPU_MIPS64_R2 instead for better
+ performance.
+
+config CPU_MIPS64_R2
+ bool "MIPS64 Release 2"
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_64BIT_KERNEL
+ select CPU_HAS_PREFETCH
+ help
+ Choose this option to build a kernel for release 2 or later of the
+ MIPS64 architecture. Many modern embedded systems with a 64-bit
+ MIPS processor are based on a MIPS64 processor. If you know the
+ specific type of processor in your system, choose those that one
+ otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
config CPU_R3000
bool "R3000"
