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Commit c278400c authored by Aurelien Jacquiot's avatar Aurelien Jacquiot Committed by Mark Salter
Browse files

C6X: build infrastructure 



Original port to early 2.6 kernel using TI COFF toolchain.
Brought up to date by Mark Salter <msalter@redhat.com>

Signed-off-by: default avatarAurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: default avatarMark Salter <msalter@redhat.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
parent e66d3c49

arch/c6x/Kconfig

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#

# 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

arch/c6x/Makefile

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#

# 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

arch/c6x/boot/Makefile

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#

# 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

arch/c6x/configs/dsk6455_defconfig

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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

arch/c6x/configs/evmc6457_defconfig

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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