MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processors

We already have sufficient infrastructure to support VR5500 and VR5500A
series processors.  Here's a Makefile support to make it selectable by
ports, and enable it for NEC EMMA2RH Markeins board.

This patch also fixes a confused target help, and adds 1Gb PageMask bits
supported by VR5500 and its variants.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 15 insertions, 3 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3a83f2a1b240..16fc6155285a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -249,10 +249,9 @@ config MARKEINS
         select SYS_SUPPORTS_32BIT_KERNEL
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_LITTLE_ENDIAN
-        select SYS_HAS_CPU_R5000
+        select SYS_HAS_CPU_R5500
         help
-          This enables support for the R5432-based NEC Mark-eins
-          boards with R5500 CPU.
+          This enables support for the NEC Mark-eins board with VR5500 CPU.
 
 config MACH_VR41XX
         bool "NEC VR4100 series based machines"
@@ -1123,6 +1122,16 @@ config CPU_R5432
         select CPU_SUPPORTS_32BIT_KERNEL
         select CPU_SUPPORTS_64BIT_KERNEL
 
+config CPU_R5500
+        bool "R5500"
+        depends on SYS_HAS_CPU_R5500
+        select CPU_HAS_LLSC
+        select CPU_SUPPORTS_32BIT_KERNEL
+        select CPU_SUPPORTS_64BIT_KERNEL
+        help
+          NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
+          instruction set.
+
 config CPU_R6000
         bool "R6000"
         depends on EXPERIMENTAL
@@ -1233,6 +1242,9 @@ config SYS_HAS_CPU_R5000
 config SYS_HAS_CPU_R5432
         bool
 
+config SYS_HAS_CPU_R5500
+        bool
+
 config SYS_HAS_CPU_R6000
         bool