14 files changed, 701 insertions, 0 deletions

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
new file mode 100644
index 000000000000..26e67f0f0051
--- /dev/null
+++ b/arch/c6x/Kconfig
@@ -0,0 +1,174 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+config TMS320C6X
+        def_bool y
+        select CLKDEV_LOOKUP
+        select GENERIC_IRQ_SHOW
+        select HAVE_ARCH_TRACEHOOK
+        select HAVE_DMA_API_DEBUG
+        select HAVE_GENERIC_HARDIRQS
+        select HAVE_MEMBLOCK
+        select HAVE_SPARSE_IRQ
+        select OF
+        select OF_EARLY_FLATTREE
+
+config MMU
+        def_bool n
+
+config ZONE_DMA
+        def_bool y
+
+config FPU
+        def_bool n
+
+config HIGHMEM
+        def_bool n
+
+config NUMA
+        def_bool n
+
+config RWSEM_GENERIC_SPINLOCK
+        def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+        def_bool n
+
+config GENERIC_CALIBRATE_DELAY
+        def_bool y
+
+config GENERIC_HWEIGHT
+        def_bool y
+
+config GENERIC_CLOCKEVENTS
+        def_bool y
+
+config GENERIC_CLOCKEVENTS_BROADCAST
+        bool
+
+config GENERIC_BUG
+        def_bool y
+
+config COMMON_CLKDEV
+        def_bool y
+
+config C6X_BIG_KERNEL
+        bool "Build a big kernel"
+        help
+          The C6X function call instruction has a limited range of +/- 2MiB.
+          This is sufficient for most kernels, but some kernel configurations
+          with lots of compiled-in functionality may require a larger range
+          for function calls. Use this option to have the compiler generate
+          function calls with 32-bit range. This will make the kernel both
+          larger and slower.
+
+          If unsure, say N.
+
+source "init/Kconfig"
+
+# Use the generic interrupt handling code in kernel/irq/
+
+source "kernel/Kconfig.freezer"
+
+config CMDLINE_BOOL
+        bool "Default bootloader kernel arguments"
+
+config CMDLINE
+        string "Kernel command line"
+        depends on CMDLINE_BOOL
+        default "console=ttyS0,57600"
+        help
+          On some architectures there is currently no way for the boot loader
+          to pass arguments to the kernel. For these architectures, you should
+          supply some command-line options at build time by entering them
+          here.
+
+config CMDLINE_FORCE
+        bool "Force default kernel command string"
+        depends on CMDLINE_BOOL
+        default n
+        help
+          Set this to have arguments from the default kernel command string
+          override those passed by the boot loader.
+
+config CPU_BIG_ENDIAN
+        bool "Build big-endian kernel"
+        default n
+        help
+          Say Y if you plan on running a kernel in big-endian mode.
+          Note that your board must be properly built and your board
+          port must properly enable any big-endian related features
+          of your chipset/board/processor.
+
+config FORCE_MAX_ZONEORDER
+        int "Maximum zone order"
+        default "13"
+        help
+          The kernel memory allocator divides physically contiguous memory
+          blocks into "zones", where each zone is a power of two number of
+          pages.  This option selects the largest power of two that the kernel
+          keeps in the memory allocator.  If you need to allocate very large
+          blocks of physically contiguous memory, then you may need to
+          increase this value.
+
+          This config option is actually maximum order plus one. For example,
+          a value of 11 means that the largest free memory block is 2^10 pages.
+
+menu "Processor type and features"
+
+source "arch/c6x/platforms/Kconfig"
+
+config TMS320C6X_CACHES_ON
+        bool "L2 cache support"
+        default y
+
+config KERNEL_RAM_BASE_ADDRESS
+        hex "Virtual address of memory base"
+        default 0xe0000000 if SOC_TMS320C6455
+        default 0xe0000000 if SOC_TMS320C6457
+        default 0xe0000000 if SOC_TMS320C6472
+        default 0x80000000
+
+source "mm/Kconfig"
+
+source "kernel/Kconfig.preempt"
+
+source "kernel/Kconfig.hz"
+source "kernel/time/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
+
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config ACCESS_CHECK
+        bool "Check the user pointer address"
+        default y
+        help
+          Usually the pointer transfer from user space is checked to see if its
+          address is in the kernel space.
+
+          Say N here to disable that check to improve the performance.
+
+endmenu
diff --git a/arch/c6x/Makefile b/arch/c6x/Makefile
new file mode 100644
index 000000000000..1d08dd070277
--- /dev/null
+++ b/arch/c6x/Makefile
@@ -0,0 +1,60 @@
+#
+# linux/arch/c6x/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+
+cflags-y += -mno-dsbt -msdata=none
+
+cflags-$(CONFIG_C6X_BIG_KERNEL) += -mlong-calls
+
+CFLAGS_MODULE   += -mlong-calls -mno-dsbt -msdata=none
+
+CHECKFLAGS      +=
+
+KBUILD_CFLAGS   += $(cflags-y)
+KBUILD_AFLAGS   += $(cflags-y)
+
+ifdef CONFIG_CPU_BIG_ENDIAN
+KBUILD_CFLAGS   += -mbig-endian
+KBUILD_AFLAGS   += -mbig-endian
+LINKFLAGS       += -mbig-endian
+KBUILD_LDFLAGS  += -mbig-endian
+LDFLAGS += -EB
+endif
+
+head-y          := arch/c6x/kernel/head.o
+core-y          += arch/c6x/kernel/ arch/c6x/mm/ arch/c6x/platforms/
+libs-y          += arch/c6x/lib/
+
+# Default to vmlinux.bin, override when needed
+all: vmlinux.bin
+
+boot := arch/$(ARCH)/boot
+
+# Are we making a dtbImage.<boardname> target? If so, crack out the boardname
+DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS)))
+export DTB
+
+ifneq ($(DTB),)
+core-y  += $(boot)/
+endif
+
+# With make 3.82 we cannot mix normal and wildcard targets
+
+vmlinux.bin: vmlinux
+        $(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+dtbImage.%: vmlinux
+        $(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+archclean:
+        $(Q)$(MAKE) $(clean)=$(boot)
+
+define archhelp
+  @echo '  vmlinux.bin     - Binary kernel image (arch/$(ARCH)/boot/vmlinux.bin)'
+  @echo '  dtbImage.<dt>   - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
+  @echo '                  - stripped elf with fdt blob'
+endef
diff --git a/arch/c6x/boot/Makefile b/arch/c6x/boot/Makefile
new file mode 100644
index 000000000000..ecca820e6041
--- /dev/null
+++ b/arch/c6x/boot/Makefile
@@ -0,0 +1,30 @@
+#
+# Makefile for bootable kernel images
+#
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+        $(call if_changed,objcopy)
+
+DTC_FLAGS ?= -p 1024
+
+ifneq ($(DTB),)
+obj-y += linked_dtb.o
+endif
+
+$(obj)/%.dtb: $(src)/dts/%.dts FORCE
+        $(call cmd,dtc)
+
+quiet_cmd_cp = CP      $< $@$2
+        cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
+
+# Generate builtin.dtb from $(DTB).dtb
+$(obj)/builtin.dtb: $(obj)/$(DTB).dtb
+        $(call if_changed,cp)
+
+$(obj)/linked_dtb.o: $(obj)/builtin.dtb
+
+$(obj)/dtbImage.%: vmlinux
+        $(call if_changed,objcopy)
+
+clean-files := $(obj)/*.dtb
diff --git a/arch/c6x/configs/dsk6455_defconfig b/arch/c6x/configs/dsk6455_defconfig
new file mode 100644
index 000000000000..4663487c67a1
--- /dev/null
+++ b/arch/c6x/configs/dsk6455_defconfig
@@ -0,0 +1,44 @@
+CONFIG_SOC_TMS320C6455=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_MTD=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP_OF=y
diff --git a/arch/c6x/configs/evmc6457_defconfig b/arch/c6x/configs/evmc6457_defconfig
new file mode 100644
index 000000000000..bba40e195ec4
--- /dev/null
+++ b/arch/c6x/configs/evmc6457_defconfig
@@ -0,0 +1,41 @@
+CONFIG_SOC_TMS320C6457=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+CONFIG_BOARD_EVM6457=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/configs/evmc6472_defconfig b/arch/c6x/configs/evmc6472_defconfig
new file mode 100644
index 000000000000..8c46155f6d31
--- /dev/null
+++ b/arch/c6x/configs/evmc6472_defconfig
@@ -0,0 +1,42 @@
+CONFIG_SOC_TMS320C6472=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_BOARD_EVM6472=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/configs/evmc6474_defconfig b/arch/c6x/configs/evmc6474_defconfig
new file mode 100644
index 000000000000..15533f632313
--- /dev/null
+++ b/arch/c6x/configs/evmc6474_defconfig
@@ -0,0 +1,42 @@
+CONFIG_SOC_TMS320C6474=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_BOARD_EVM6474=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
new file mode 100644
index 000000000000..13dcf78adf91
--- /dev/null
+++ b/arch/c6x/include/asm/Kbuild
@@ -0,0 +1,54 @@
+include include/asm-generic/Kbuild.asm
+
+generic-y += atomic.h
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += bug.h
+generic-y += bugs.h
+generic-y += cputime.h
+generic-y += current.h
+generic-y += device.h
+generic-y += div64.h
+generic-y += dma.h
+generic-y += emergency-restart.h
+generic-y += errno.h
+generic-y += fb.h
+generic-y += fcntl.h
+generic-y += futex.h
+generic-y += hw_irq.h
+generic-y += io.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += irq_regs.h
+generic-y += kdebug.h
+generic-y += kmap_types.h
+generic-y += local.h
+generic-y += mman.h
+generic-y += mmu_context.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += pci.h
+generic-y += percpu.h
+generic-y += pgalloc.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += scatterlist.h
+generic-y += segment.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += tlbflush.h
+generic-y += topology.h
+generic-y += types.h
+generic-y += ucontext.h
+generic-y += user.h
+generic-y += vga.h
diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile
new file mode 100644
index 000000000000..580a515a9443
--- /dev/null
+++ b/arch/c6x/kernel/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for arch/c6x/kernel/
+#
+
+extra-y := head.o vmlinux.lds
+
+obj-y := process.o traps.o irq.o signal.o ptrace.o
+obj-y += setup.o sys_c6x.o time.o devicetree.o
+obj-y += switch_to.o entry.o vectors.o c6x_ksyms.o
+obj-y += soc.o dma.o
+
+obj-$(CONFIG_MODULES)           += module.o
diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S
new file mode 100644
index 000000000000..1d81c4c129ec
--- /dev/null
+++ b/arch/c6x/kernel/vmlinux.lds.S
@@ -0,0 +1,162 @@
+/*
+ * ld script for the c6x kernel
+ *
+ *  Copyright (C) 2010, 2011 Texas Instruments Incorporated
+ *  Mark Salter <msalter@redhat.com>
+ */
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+
+ENTRY(_c_int00)
+
+#if defined(CONFIG_CPU_BIG_ENDIAN)
+jiffies = jiffies_64 + 4;
+#else
+jiffies = jiffies_64;
+#endif
+
+#define READONLY_SEGMENT_START  \
+        . = PAGE_OFFSET;
+#define READWRITE_SEGMENT_START \
+        . = ALIGN(128);         \
+        _data_lma = .;
+
+SECTIONS
+{
+        /*
+         * Start kernel read only segment
+         */
+        READONLY_SEGMENT_START
+
+        .vectors :
+        {
+                _vectors_start = .;
+                *(.vectors)
+                . = ALIGN(0x400);
+                _vectors_end = .;
+        }
+
+        . = ALIGN(0x1000);
+        .cmdline :
+        {
+                *(.cmdline)
+        }
+
+        /*
+         * This section contains data which may be shared with other
+         * cores. It needs to be a fixed offset from PAGE_OFFSET
+         * regardless of kernel configuration.
+         */
+        .virtio_ipc_dev :
+        {
+                *(.virtio_ipc_dev)
+        }
+
+        . = ALIGN(PAGE_SIZE);
+        .init :
+        {
+                _stext = .;
+                _sinittext = .;
+                HEAD_TEXT
+                INIT_TEXT
+                _einittext = .;
+        }
+
+        __init_begin = _stext;
+        INIT_DATA_SECTION(16)
+
+        PERCPU_SECTION(128)
+
+        . = ALIGN(PAGE_SIZE);
+        __init_end = .;
+
+        .text :
+        {
+                _text = .;
+                TEXT_TEXT
+                SCHED_TEXT
+                LOCK_TEXT
+                IRQENTRY_TEXT
+                KPROBES_TEXT
+                *(.fixup)
+                *(.gnu.warning)
+        }
+
+        EXCEPTION_TABLE(16)
+        NOTES
+
+        RO_DATA_SECTION(PAGE_SIZE)
+        .const :
+        {
+                *(.const .const.* .gnu.linkonce.r.*)
+                *(.switch)
+        }
+
+        . = ALIGN (8) ;
+        __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET)
+        {
+                _fdt_start = . ;        /* place for fdt blob */
+                *(__fdt_blob) ;         /* Any link-placed DTB */
+                BYTE(0);                /* section always has contents */
+                . = _fdt_start + 0x4000;        /* Pad up to 16kbyte */
+                _fdt_end = . ;
+        }
+
+        _etext = .;
+
+        /*
+         * Start kernel read-write segment.
+         */
+        READWRITE_SEGMENT_START
+        _sdata = .;
+
+        .fardata : AT(ADDR(.fardata) - LOAD_OFFSET)
+        {
+                INIT_TASK_DATA(THREAD_SIZE)
+                NOSAVE_DATA
+                PAGE_ALIGNED_DATA(PAGE_SIZE)
+                CACHELINE_ALIGNED_DATA(128)
+                READ_MOSTLY_DATA(128)
+                DATA_DATA
+                CONSTRUCTORS
+                *(.data1)
+                *(.fardata .fardata.*)
+                *(.data.debug_bpt)
+        }
+
+        .neardata ALIGN(8) : AT(ADDR(.neardata) - LOAD_OFFSET)
+        {
+                *(.neardata2 .neardata2.* .gnu.linkonce.s2.*)
+                *(.neardata .neardata.* .gnu.linkonce.s.*)
+                . = ALIGN(8);
+        }
+
+        _edata = .;
+
+        __bss_start = .;
+        SBSS(8)
+        BSS(8)
+        .far :
+        {
+                . = ALIGN(8);
+                *(.dynfar)
+                *(.far .far.* .gnu.linkonce.b.*)
+                . = ALIGN(8);
+        }
+        __bss_stop = .;
+
+        _end = .;
+
+        DWARF_DEBUG
+
+        /DISCARD/ :
+        {
+                  EXIT_TEXT
+                  EXIT_DATA
+                  EXIT_CALL
+                  *(.discard)
+                  *(.discard.*)
+                  *(.interp)
+        }
+}
diff --git a/arch/c6x/lib/Makefile b/arch/c6x/lib/Makefile
new file mode 100644
index 000000000000..ffd3c659091a
--- /dev/null
+++ b/arch/c6x/lib/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for arch/c6x/lib/
+#
+
+lib-y := divu.o divi.o pop_rts.o push_rts.o remi.o remu.o strasgi.o llshru.o
+lib-y += llshr.o llshl.o negll.o mpyll.o divremi.o divremu.o
+lib-y += checksum.o csum_64plus.o memcpy_64plus.o strasgi_64plus.o
diff --git a/arch/c6x/mm/Makefile b/arch/c6x/mm/Makefile
new file mode 100644
index 000000000000..136a97576c61
--- /dev/null
+++ b/arch/c6x/mm/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the linux c6x-specific parts of the memory manager.
+#
+
+obj-y := init.o dma-coherent.o
diff --git a/arch/c6x/platforms/Kconfig b/arch/c6x/platforms/Kconfig
new file mode 100644
index 000000000000..401ee678fd01
--- /dev/null
+++ b/arch/c6x/platforms/Kconfig
@@ -0,0 +1,16 @@
+
+config SOC_TMS320C6455
+        bool "TMS320C6455"
+        default n
+
+config SOC_TMS320C6457
+        bool "TMS320C6457"
+        default n
+
+config SOC_TMS320C6472
+        bool "TMS320C6472"
+        default n
+
+config SOC_TMS320C6474
+        bool "TMS320C6474"
+        default n
diff --git a/arch/c6x/platforms/Makefile b/arch/c6x/platforms/Makefile
new file mode 100644
index 000000000000..9a95b9bca8d0
--- /dev/null
+++ b/arch/c6x/platforms/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for arch/c6x/platforms
+#
+# Copyright 2010, 2011 Texas Instruments Incorporated
+#
+
+obj-y = platform.o cache.o megamod-pic.o pll.o plldata.o timer64.o
+obj-y += dscr.o
+
+# SoC objects
+obj-$(CONFIG_SOC_TMS320C6455)   += emif.o
+obj-$(CONFIG_SOC_TMS320C6457)   += emif.o