1 files changed, 22 insertions, 0 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 624c31cd8077..c8d954d6f2c4 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -894,6 +894,16 @@ choice
         prompt "CPU type"
         default CPU_R4X00
 
+config CPU_LOONGSON2
+        bool "Loongson 2"
+        depends on SYS_HAS_CPU_LOONGSON2
+        select CPU_SUPPORTS_32BIT_KERNEL
+        select CPU_SUPPORTS_64BIT_KERNEL
+        select CPU_SUPPORTS_HIGHMEM
+        help
+          The Loongson 2E processor implements the MIPS III instruction set
+          with many extensions.
+
 config CPU_MIPS32_R1
         bool "MIPS32 Release 1"
         depends on SYS_HAS_CPU_MIPS32_R1
@@ -1104,6 +1114,9 @@ config CPU_SB1
 
 endchoice
 
+config SYS_HAS_CPU_LOONGSON2
+        bool
+
 config SYS_HAS_CPU_MIPS32_R1
         bool
 
@@ -1438,6 +1451,15 @@ config CPU_HAS_SMARTMIPS
 config CPU_HAS_WB
         bool
 
+config 64BIT_CONTEXT
+        bool "Save 64bit integer registers"
+        depends on 32BIT && CPU_LOONGSON2
+        help
+          Loongson2 CPU is 64bit , when used in 32BIT mode, its integer
+          registers can still be accessed as 64bit, mainly for multimedia
+          instructions. We must have all 64bit save/restored to make sure
+          those instructions to get correct result.
+
 #
 # Vectored interrupt mode is an R2 feature
 #