arch/c6x/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # For a description of the syntax of this configuration file,
   4 # see Documentation/kbuild/kconfig-language.rst.
   5 #
   6
   7 config C6X
   8         def_bool y
   9         select ARCH_32BIT_OFF_T
  10         select ARCH_HAS_BINFMT_FLAT
  11         select ARCH_HAS_SYNC_DMA_FOR_CPU
  12         select ARCH_HAS_SYNC_DMA_FOR_DEVICE
  13         select CLKDEV_LOOKUP
  14         select HAVE_LEGACY_CLK
  15         select GENERIC_ATOMIC64
  16         select GENERIC_IRQ_SHOW
  17         select HAVE_ARCH_TRACEHOOK
  18         select SPARSE_IRQ
  19         select IRQ_DOMAIN
  20         select OF
  21         select OF_EARLY_FLATTREE
  22         select MODULES_USE_ELF_RELA
  23         select MMU_GATHER_NO_RANGE if MMU
  24         select SET_FS
  25
  26 config MMU
  27         def_bool n
  28
  29 config FPU
  30         def_bool n
  31
  32 config GENERIC_CALIBRATE_DELAY
  33         def_bool y
  34
  35 config GENERIC_HWEIGHT
  36         def_bool y
  37
  38 config GENERIC_BUG
  39         def_bool y
  40         depends on BUG
  41
  42 config C6X_BIG_KERNEL
  43         bool "Build a big kernel"
  44         help
  45           The C6X function call instruction has a limited range of +/- 2MiB.
  46           This is sufficient for most kernels, but some kernel configurations
  47           with lots of compiled-in functionality may require a larger range
  48           for function calls. Use this option to have the compiler generate
  49           function calls with 32-bit range. This will make the kernel both
  50           larger and slower.
  51
  52           If unsure, say N.
  53
  54 # Use the generic interrupt handling code in kernel/irq/
  55
  56 config CMDLINE_BOOL
  57         bool "Default bootloader kernel arguments"
  58
  59 config CMDLINE
  60         string "Kernel command line"
  61         depends on CMDLINE_BOOL
  62         default "console=ttyS0,57600"
  63         help
  64           On some architectures there is currently no way for the boot loader
  65           to pass arguments to the kernel. For these architectures, you should
  66           supply some command-line options at build time by entering them
  67           here.
  68
  69 config CMDLINE_FORCE
  70         bool "Force default kernel command string"
  71         depends on CMDLINE_BOOL
  72         default n
  73         help
  74           Set this to have arguments from the default kernel command string
  75           override those passed by the boot loader.
  76
  77 config CPU_BIG_ENDIAN
  78         bool "Build big-endian kernel"
  79         default n
  80         help
  81           Say Y if you plan on running a kernel in big-endian mode.
  82           Note that your board must be properly built and your board
  83           port must properly enable any big-endian related features
  84           of your chipset/board/processor.
  85
  86 config FORCE_MAX_ZONEORDER
  87         int "Maximum zone order"
  88         default "13"
  89         help
  90           The kernel memory allocator divides physically contiguous memory
  91           blocks into "zones", where each zone is a power of two number of
  92           pages.  This option selects the largest power of two that the kernel
  93           keeps in the memory allocator.  If you need to allocate very large
  94           blocks of physically contiguous memory, then you may need to
  95           increase this value.
  96
  97           This config option is actually maximum order plus one. For example,
  98           a value of 11 means that the largest free memory block is 2^10 pages.
  99
 100 menu "Processor type and features"
 101
 102 source "arch/c6x/platforms/Kconfig"
 103
 104 config KERNEL_RAM_BASE_ADDRESS
 105         hex "Virtual address of memory base"
 106         default 0xe0000000 if SOC_TMS320C6455
 107         default 0xe0000000 if SOC_TMS320C6457
 108         default 0xe0000000 if SOC_TMS320C6472
 109         default 0x80000000
 110
 111 source "kernel/Kconfig.hz"
 112
 113 endmenu