MIPS: Add Cavium OCTEON processor support files to arch/mips/cavium-octeon.

These are the rest of the new files needed to add OCTEON processor
support to the Linux kernel.  Other than Makefile and Kconfig which
should be obvious, we have:

csrc-octeon.c   -- Clock source driver for OCTEON.
dma-octeon.c    -- Helper functions for mapping DMA memory.
flash_setup.c   -- Register on-board flash with the MTD subsystem.
octeon-irq.c    -- OCTEON interrupt controller managment.
octeon-memcpy.S -- Optimized memcpy() implementation.
serial.c        -- Register 8250 platform driver and early console.
setup.c         -- Early architecture initialization.
smp.c           -- OCTEON SMP support.
octeon_switch.S -- Scheduler context switch for OCTEON.
c-octeon.c      -- OCTEON cache controller support.
cex-oct.S       -- OCTEON cache exception handler.

asm/mach-cavium-octeon/*.h -- Architecture include files.

Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/cavium-octeon/Kconfig
 create mode 100644 arch/mips/cavium-octeon/Makefile
 create mode 100644 arch/mips/cavium-octeon/csrc-octeon.c
 create mode 100644 arch/mips/cavium-octeon/dma-octeon.c
 create mode 100644 arch/mips/cavium-octeon/flash_setup.c
 create mode 100644 arch/mips/cavium-octeon/octeon-irq.c
 create mode 100644 arch/mips/cavium-octeon/octeon-memcpy.S
 create mode 100644 arch/mips/cavium-octeon/serial.c
 create mode 100644 arch/mips/cavium-octeon/setup.c
 create mode 100644 arch/mips/cavium-octeon/smp.c
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/irq.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h
 create mode 100644 arch/mips/include/asm/mach-cavium-octeon/war.h
 create mode 100644 arch/mips/include/asm/octeon/octeon.h
 create mode 100644 arch/mips/kernel/octeon_switch.S
 create mode 100644 arch/mips/mm/c-octeon.c
 create mode 100644 arch/mips/mm/cex-oct.S

1 files changed, 85 insertions, 0 deletions

diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig
new file mode 100644
index 000000000000..094c17e38e16
--- /dev/null
+++ b/arch/mips/cavium-octeon/Kconfig
@@ -0,0 +1,85 @@
+config CAVIUM_OCTEON_SPECIFIC_OPTIONS
+        bool "Enable Octeon specific options"
+        depends on CPU_CAVIUM_OCTEON
+        default "y"
+
+config CAVIUM_OCTEON_2ND_KERNEL
+        bool "Build the kernel to be used as a 2nd kernel on the same chip"
+        depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
+        default "n"
+        help
+          This option configures this kernel to be linked at a different
+          address and use the 2nd uart for output. This allows a kernel built
+          with this option to be run at the same time as one built without this
+          option.
+
+config CAVIUM_OCTEON_HW_FIX_UNALIGNED
+        bool "Enable hardware fixups of unaligned loads and stores"
+        depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
+        default "y"
+        help
+          Configure the Octeon hardware to automatically fix unaligned loads
+          and stores. Normally unaligned accesses are fixed using a kernel
+          exception handler. This option enables the hardware automatic fixups,
+          which requires only an extra 3 cycles. Disable this option if you
+          are running code that relies on address exceptions on unaligned
+          accesses.
+
+config CAVIUM_OCTEON_CVMSEG_SIZE
+        int "Number of L1 cache lines reserved for CVMSEG memory"
+        depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
+        range 0 54
+        default 1
+        help
+          CVMSEG LM is a segment that accesses portions of the dcache as a
+          local memory; the larger CVMSEG is, the smaller the cache is.
+          This selects the size of CVMSEG LM, which is in cache blocks. The
+          legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is
+          between zero and 6192 bytes).
+
+config CAVIUM_OCTEON_LOCK_L2
+        bool "Lock often used kernel code in the L2"
+        depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
+        default "y"
+        help
+          Enable locking parts of the kernel into the L2 cache.
+
+config CAVIUM_OCTEON_LOCK_L2_TLB
+        bool "Lock the TLB handler in L2"
+        depends on CAVIUM_OCTEON_LOCK_L2
+        default "y"
+        help
+          Lock the low level TLB fast path into L2.
+
+config CAVIUM_OCTEON_LOCK_L2_EXCEPTION
+        bool "Lock the exception handler in L2"
+        depends on CAVIUM_OCTEON_LOCK_L2
+        default "y"
+        help
+          Lock the low level exception handler into L2.
+
+config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT
+        bool "Lock the interrupt handler in L2"
+        depends on CAVIUM_OCTEON_LOCK_L2
+        default "y"
+        help
+          Lock the low level interrupt handler into L2.
+
+config CAVIUM_OCTEON_LOCK_L2_INTERRUPT
+        bool "Lock the 2nd level interrupt handler in L2"
+        depends on CAVIUM_OCTEON_LOCK_L2
+        default "y"
+        help
+          Lock the 2nd level interrupt handler in L2.
+
+config CAVIUM_OCTEON_LOCK_L2_MEMCPY
+        bool "Lock memcpy() in L2"
+        depends on CAVIUM_OCTEON_LOCK_L2
+        default "y"
+        help
+          Lock the kernel's implementation of memcpy() into L2.
+
+config ARCH_SPARSEMEM_ENABLE
+        def_bool y
+        select SPARSEMEM_STATIC
+        depends on CPU_CAVIUM_OCTEON