MIPS: Move content of arch/mips/cpu to arch/mips/cpu/mips32

All current CPUs and SoCs are based on MIPS32 arch. The complete
code resides in the global arch/mips/cpu directory. This is not
suitable if other MIPS architectures like MIPS64 or Octeon should
be supported in the future.

To achieve this the current CPU code is moved to its own mips32
subdirectory. All MIPS32 boards have to use mips32 as config switch
in board.cfg.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Thomas Lange <thomas@corelatus.se>
Cc: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
diff --git a/boards.cfg b/boards.cfg
index 63b1cda..8194bb2 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -217,31 +217,31 @@
 M53017EVB                    m68k        mcf52x2     m53017evb           freescale
 EP2500                       m68k        mcf52x2     ep2500              Mercury
 microblaze-generic           microblaze  microblaze  microblaze-generic  xilinx
-dbau1000                     mips        mips        dbau1x00            -              -           dbau1x00:DBAU1000
-dbau1100                     mips        mips        dbau1x00            -              -           dbau1x00:DBAU1100
-dbau1500                     mips        mips        dbau1x00            -              -           dbau1x00:DBAU1500
-dbau1550                     mips        mips        dbau1x00            -              -           dbau1x00:DBAU1550
-dbau1550_el                  mips        mips        dbau1x00            -              -           dbau1x00:DBAU1550
-gth2                         mips        mips
-incaip                       mips        mips
-incaip_100MHz                mips        mips        incaip              -              -           incaip:CPU_CLOCK_RATE=100000000
-incaip_133MHz                mips        mips        incaip              -              -           incaip:CPU_CLOCK_RATE=133000000
-incaip_150MHz                mips        mips        incaip              -              -           incaip:CPU_CLOCK_RATE=150000000
-pb1000                       mips        mips        pb1x00              -              -           pb1x00:PB1000
-qemu_mips                    mips        mips        qemu-mips           -              -           qemu-mips
-tb0229                       mips        mips
-vct_premium                  mips        mips        vct                 micronas       -           vct:VCT_PREMIUM
-vct_premium_small            mips        mips        vct                 micronas       -           vct:VCT_PREMIUM,VCT_SMALL_IMAGE
-vct_premium_onenand          mips        mips        vct                 micronas       -           vct:VCT_PREMIUM,VCT_ONENAND
-vct_premium_onenand_small    mips        mips        vct                 micronas       -           vct:VCT_PREMIUM,VCT_ONENAND,VCT_SMALL_IMAGE
-vct_platinum                 mips        mips        vct                 micronas       -           vct:VCT_PLATINUM
-vct_platinum_small           mips        mips        vct                 micronas       -           vct:VCT_PLATINUM,VCT_SMALL_IMAGE
-vct_platinum_onenand         mips        mips        vct                 micronas       -           vct:VCT_PLATINUM,VCT_ONENAND
-vct_platinum_onenand_small   mips        mips        vct                 micronas       -           vct:VCT_PLATINUM,VCT_ONENAND,VCT_SMALL_IMAGE
-vct_platinumavc              mips        mips        vct                 micronas       -           vct:VCT_PLATINUMAVC
-vct_platinumavc_small        mips        mips        vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_SMALL_IMAGE
-vct_platinumavc_onenand      mips        mips        vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_ONENAND
-vct_platinumavc_onenand_small mips       mips        vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_ONENAND,VCT_SMALL_IMAGE
+dbau1000                     mips        mips32      dbau1x00            -              -           dbau1x00:DBAU1000
+dbau1100                     mips        mips32      dbau1x00            -              -           dbau1x00:DBAU1100
+dbau1500                     mips        mips32      dbau1x00            -              -           dbau1x00:DBAU1500
+dbau1550                     mips        mips32      dbau1x00            -              -           dbau1x00:DBAU1550
+dbau1550_el                  mips        mips32      dbau1x00            -              -           dbau1x00:DBAU1550
+gth2                         mips        mips32
+incaip                       mips        mips32
+incaip_100MHz                mips        mips32      incaip              -              -           incaip:CPU_CLOCK_RATE=100000000
+incaip_133MHz                mips        mips32      incaip              -              -           incaip:CPU_CLOCK_RATE=133000000
+incaip_150MHz                mips        mips32      incaip              -              -           incaip:CPU_CLOCK_RATE=150000000
+pb1000                       mips        mips32      pb1x00              -              -           pb1x00:PB1000
+qemu_mips                    mips        mips32      qemu-mips           -              -           qemu-mips
+tb0229                       mips        mips32
+vct_premium                  mips        mips32      vct                 micronas       -           vct:VCT_PREMIUM
+vct_premium_small            mips        mips32      vct                 micronas       -           vct:VCT_PREMIUM,VCT_SMALL_IMAGE
+vct_premium_onenand          mips        mips32      vct                 micronas       -           vct:VCT_PREMIUM,VCT_ONENAND
+vct_premium_onenand_small    mips        mips32      vct                 micronas       -           vct:VCT_PREMIUM,VCT_ONENAND,VCT_SMALL_IMAGE
+vct_platinum                 mips        mips32      vct                 micronas       -           vct:VCT_PLATINUM
+vct_platinum_small           mips        mips32      vct                 micronas       -           vct:VCT_PLATINUM,VCT_SMALL_IMAGE
+vct_platinum_onenand         mips        mips32      vct                 micronas       -           vct:VCT_PLATINUM,VCT_ONENAND
+vct_platinum_onenand_small   mips        mips32      vct                 micronas       -           vct:VCT_PLATINUM,VCT_ONENAND,VCT_SMALL_IMAGE
+vct_platinumavc              mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC
+vct_platinumavc_small        mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_SMALL_IMAGE
+vct_platinumavc_onenand      mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_ONENAND
+vct_platinumavc_onenand_small mips       mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_ONENAND,VCT_SMALL_IMAGE
 PCI5441                      nios2       nios2       pci5441             psyent
 PK1C20                       nios2       nios2       pk1c20              psyent
 EVB64260                     powerpc     74xx_7xx    evb64260            -              -           EVB64260