src/non-arm-targets.txt

   1 Some outstanding issues w.r.t. non-ARM32 targets
   2 ================================================
   3 This file describes outstanding issues w.r.t.
   4 non-ARM32 targets.
   5
   6 Ideas & patches welcome!
   7
   8
   9
  10
  11 Flash drivers
  12 -------------
  13 The flash drivers contain ARM32 code that is used
  14 to execute code on the target.
  15
  16 This needs to be handled in some CPU independent
  17 manner.
  18
  19 The ocl and ecos flash drivers compile the flash
  20 driver code to run on the target on the developer
  21 machine.
  22
  23 The ocl and ecos flash drivers should be unified
  24 and instructions should be written on how to
  25 compile the target flash drivers. Perhaps
  26 using automake?
  27
  28
  29
  30 eCos has CFI driver that could probably be compiled
  31 for all targets. The trick is to figure out a
  32 way to make the compiled flash drivers work
  33 on all target memory maps + sort out all the
  34 little details
  35
  36 32 vs. 64 bit
  37 -------------
  38 Currently OpenOCD only supports 32 bit targets.
  39
  40 Adding 64 bit support would be nice but there
  41 hasn't been any call for it in the openocd development
  42 mailing list
  43
  44 target support
  45 --------------
  46 target.h is relatively CPU agnostic and
  47 the intention is to move in the direction of less
  48 instruction set specific.
  49
  50 Non-CPU targets are also supported, but there isn't
  51 a lot of activity on it in the mailing list currently.
  52 An example is FPGA programming support via JTAG,
  53 but also flash chips can be programmed directly
  54 using JTAG.
  55
  56 non-JTAG physical layer
  57 -----------------------
  58 JTAG is not the only physical protocol used to talk to
  59 CPUs.
  60
  61 OpenOCD does not today have targets that use non-JTAG.
  62
  63 The actual physical layer is a relatively modest part
  64 of the total OpenOCD system.
  65
  66
  67 PowerPC
  68 -------
  69 there exists open source implementations of powerpc
  70 target manipulation, but there hasn't been a lot
  71 of activity in the mailing list.
  72
  73 MIPS
  74 ----
  75 Currently OpenOCD has a MIPS target defined. This is the
  76 first non-ARM example of a CPU target