common/spl/Kconfig

   1 config SUPPORT_SPL
   2         bool
   3
   4 config SUPPORT_TPL
   5         bool
   6
   7 config SPL
   8         bool
   9         depends on SUPPORT_SPL
  10         prompt "Enable SPL"
  11         help
  12           If you want to build SPL as well as the normal image, say Y.
  13
  14 config SPL_SYS_MALLOC_SIMPLE
  15         bool
  16         depends on SPL
  17         prompt "Only use malloc_simple functions in the SPL"
  18         help
  19           Say Y here to only use the *_simple malloc functions from
  20           malloc_simple.c, rather then using the versions from dlmalloc.c;
  21           this will make the SPL binary smaller at the cost of more heap
  22           usage as the *_simple malloc functions do not re-use free-ed mem.
  23
  24 config SPL_STACK_R
  25         depends on SPL
  26         bool "Enable SDRAM location for SPL stack"
  27         help
  28           SPL starts off execution in SRAM and thus typically has only a small
  29           stack available. Since SPL sets up DRAM while in its board_init_f()
  30           function, it is possible for the stack to move there before
  31           board_init_r() is reached. This option enables a special SDRAM
  32           location for the SPL stack. U-Boot SPL switches to this after
  33           board_init_f() completes, and before board_init_r() starts.
  34
  35 config SPL_STACK_R_ADDR
  36         depends on SPL_STACK_R
  37         hex "SDRAM location for SPL stack"
  38         help
  39           Specify the address in SDRAM for the SPL stack. This will be set up
  40           before board_init_r() is called.
  41
  42 config SPL_STACK_R_MALLOC_SIMPLE_LEN
  43         depends on SPL_STACK_R && SPL_SYS_MALLOC_SIMPLE
  44         hex "Size of malloc_simple heap after switching to DRAM SPL stack"
  45         default 0x100000
  46         help
  47           Specify the amount of the stack to use as memory pool for
  48           malloc_simple after switching the stack to DRAM. This may be set
  49           to give board_init_r() a larger heap then the initial heap in
  50           SRAM which is limited to SYS_MALLOC_F_LEN bytes.
  51
  52 config SPL_SEPARATE_BSS
  53         depends on SPL
  54         bool "BSS section is in a different memory region from text"
  55         help
  56           Some platforms need a large BSS region in SPL and can provide this
  57           because RAM is already set up. In this case BSS can be moved to RAM.
  58           This option should then be enabled so that the correct device tree
  59           location is used. Normally we put the device tree at the end of BSS
  60           but with this option enabled, it goes at _image_binary_end.
  61
  62 config TPL
  63         bool
  64         depends on SPL && SUPPORT_TPL
  65         prompt "Enable TPL"
  66         help
  67           If you want to build TPL as well as the normal image and SPL, say Y.