arch/arc/Kconfig

   1 menu "ARC architecture"
   2         depends on ARC
   3
   4 config SYS_ARCH
   5         default "arc"
   6
   7 config USE_PRIVATE_LIBGCC
   8         default y
   9
  10 config SYS_CPU
  11         default "arcv1" if ISA_ARCOMPACT
  12         default "arcv2" if ISA_ARCV2
  13
  14 choice
  15         prompt "ARC Instruction Set"
  16         default ISA_ARCOMPACT
  17
  18 config ISA_ARCOMPACT
  19         bool "ARCompact ISA"
  20         help
  21           The original ARC ISA of ARC600/700 cores
  22
  23 config ISA_ARCV2
  24         bool "ARC ISA v2"
  25         help
  26           ISA for the Next Generation ARC-HS cores
  27
  28 endchoice
  29
  30 choice
  31         prompt "CPU selection"
  32         default CPU_ARC770D if ISA_ARCOMPACT
  33         default CPU_ARCHS38 if ISA_ARCV2
  34
  35 config CPU_ARC750D
  36         bool "ARC 750D"
  37         select ARC_MMU_V2
  38         depends on ISA_ARCOMPACT
  39         help
  40           Choose this option to build an U-Boot for ARC750D CPU.
  41
  42 config CPU_ARC770D
  43         bool "ARC 770D"
  44         select ARC_MMU_V3
  45         depends on ISA_ARCOMPACT
  46         help
  47           Choose this option to build an U-Boot for ARC770D CPU.
  48
  49 config CPU_ARCEM6
  50         bool "ARC EM6"
  51         select ARC_MMU_ABSENT
  52         depends on ISA_ARCV2
  53         help
  54           Next Generation ARC Core based on ISA-v2 ISA without MMU.
  55
  56 config CPU_ARCHS36
  57         bool "ARC HS36"
  58         select ARC_MMU_ABSENT
  59         depends on ISA_ARCV2
  60         help
  61           Next Generation ARC Core based on ISA-v2 ISA without MMU.
  62
  63 config CPU_ARCHS38
  64         bool "ARC HS38"
  65         select ARC_MMU_V4
  66         depends on ISA_ARCV2
  67         help
  68           Next Generation ARC Core based on ISA-v2 ISA with MMU.
  69
  70 endchoice
  71
  72 choice
  73         prompt "MMU Version"
  74         default ARC_MMU_V3 if CPU_ARC770D
  75         default ARC_MMU_V2 if CPU_ARC750D
  76         default ARC_MMU_ABSENT if CPU_ARCEM6
  77         default ARC_MMU_ABSENT if CPU_ARCHS36
  78         default ARC_MMU_V4 if CPU_ARCHS38
  79
  80 config ARC_MMU_ABSENT
  81         bool "No MMU"
  82         help
  83           No MMU
  84
  85 config ARC_MMU_V2
  86         bool "MMU v2"
  87         depends on CPU_ARC750D
  88         help
  89           Fixed the deficiency of v1 - possible thrashing in memcpy sceanrio
  90           when 2 D-TLB and 1 I-TLB entries index into same 2way set.
  91
  92 config ARC_MMU_V3
  93         bool "MMU v3"
  94         depends on CPU_ARC770D
  95         help
  96           Introduced with ARC700 4.10: New Features
  97           Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
  98           Shared Address Spaces (SASID)
  99
 100 config ARC_MMU_V4
 101         bool "MMU v4"
 102         depends on CPU_ARCHS38
 103         help
 104           Introduced as a part of ARC HS38 release.
 105
 106 endchoice
 107
 108 config CPU_BIG_ENDIAN
 109         bool "Enable Big Endian Mode"
 110         default n
 111         help
 112           Build kernel for Big Endian Mode of ARC CPU
 113
 114 config SYS_ICACHE_OFF
 115         bool "Do not use Instruction Cache"
 116         default n
 117
 118 config SYS_DCACHE_OFF
 119         bool "Do not use Data Cache"
 120         default n
 121
 122 config ARC_CACHE_LINE_SHIFT
 123         int "Cache Line Length (as power of 2)"
 124         range 5 7
 125         default "6"
 126         depends on !SYS_DCACHE_OFF || !SYS_ICACHE_OFF
 127         help
 128           Starting with ARC700 4.9, Cache line length is configurable,
 129           This option specifies "N", with Line-len = 2 power N
 130           So line lengths of 32, 64, 128 are specified by 5,6,7, respectively
 131           Linux only supports same line lengths for I and D caches.
 132
 133 choice
 134         prompt "Target select"
 135
 136 config TARGET_DUMMY
 137         bool "Dummy target"
 138         help
 139           Please select one of real target boards below!
 140           This target is only meant to force "makedefconfig" to put
 141           TARGET_xxx in defconfig even this is the first target from the list
 142           below.
 143
 144 config TARGET_TB100
 145         bool "Support tb100"
 146
 147 config TARGET_ARCANGEL4
 148         bool "Support arcangel4"
 149
 150 config TARGET_AXS101
 151         bool "Support axs101"
 152
 153 endchoice
 154
 155 source "board/abilis/tb100/Kconfig"
 156 source "board/synopsys/Kconfig"
 157 source "board/synopsys/axs101/Kconfig"
 158
 159 endmenu