arch/arc/Kconfig

   1 menu "ARC architecture"
   2         depends on ARC
   3
   4 config SYS_ARCH
   5         default "arc"
   6
   7 config SYS_CPU
   8         default "arcv1"
   9
  10 choice
  11         prompt "CPU selection"
  12         default CPU_ARC770D
  13
  14 config CPU_ARC750D
  15         bool "ARC 750D"
  16         select ARC_MMU_V2
  17         help
  18           Choose this option to build an U-Boot for ARC750D CPU.
  19
  20 config CPU_ARC770D
  21         bool "ARC 770D"
  22         select ARC_MMU_V3
  23         help
  24           Choose this option to build an U-Boot for ARC770D CPU.
  25
  26 endchoice
  27
  28 choice
  29         prompt "MMU Version"
  30         default ARC_MMU_V3 if CPU_ARC770D
  31         default ARC_MMU_V2 if CPU_ARC750D
  32
  33 config ARC_MMU_V2
  34         bool "MMU v2"
  35         depends on CPU_ARC750D
  36         help
  37           Fixed the deficiency of v1 - possible thrashing in memcpy sceanrio
  38           when 2 D-TLB and 1 I-TLB entries index into same 2way set.
  39
  40 config ARC_MMU_V3
  41         bool "MMU v3"
  42         depends on CPU_ARC770D
  43         help
  44           Introduced with ARC700 4.10: New Features
  45           Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
  46           Shared Address Spaces (SASID)
  47
  48 endchoice
  49
  50 config CPU_BIG_ENDIAN
  51         bool "Enable Big Endian Mode"
  52         default n
  53         help
  54           Build kernel for Big Endian Mode of ARC CPU
  55
  56 config SYS_ICACHE_OFF
  57         bool "Do not use Instruction Cache"
  58         default n
  59
  60 config SYS_DCACHE_OFF
  61         bool "Do not use Data Cache"
  62         default n
  63
  64 config ARC_CACHE_LINE_SHIFT
  65         int "Cache Line Length (as power of 2)"
  66         range 5 7
  67         default "6"
  68         depends on !SYS_DCACHE_OFF || !SYS_DCACHE_OFF
  69         help
  70           Starting with ARC700 4.9, Cache line length is configurable,
  71           This option specifies "N", with Line-len = 2 power N
  72           So line lengths of 32, 64, 128 are specified by 5,6,7, respectively
  73           Linux only supports same line lengths for I and D caches.
  74
  75 choice
  76         prompt "Target select"
  77
  78 config TARGET_TB100
  79         bool "Support tb100"
  80
  81 config TARGET_ARCANGEL4
  82         bool "Support arcangel4"
  83
  84 config TARGET_AXS101
  85         bool "Support axs101"
  86
  87 endchoice
  88
  89 source "board/abilis/tb100/Kconfig"
  90 source "board/synopsys/Kconfig"
  91 source "board/synopsys/axs101/Kconfig"
  92
  93 endmenu