[Bug 1001901] Add CAN support for Olimex olpcl2294 board

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http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001901

--- Comment #2 from Sergei Gavrikov <sergei.gavrikov@gmail.com> ---
Hi Uwe,

I tried to compile CAN driver for LPC-L2294-1M (with patches applied):

  % ecosconfig new olpcl2294
  % ecosconfig add can
  ...
  In file included from devs/can/arm/lpc2xxx/current/src/can_lpc2xxx.c:723:0:
  devs/can/arm/lpc2xxx/current/src/can_accfilt_lpc2xxx.c: In function
'lpc2xxx_can_accfilt_simple_rx_all':
  devs/can/arm/lpc2xxx/current/src/can_accfilt_lpc2xxx.c:774:68: error:
'lpc2xxx_global_can_info_t' has no member named 'init_cnt'
  ...
  make[1]: *** [src/can_lpc2xxx.o.d] Error 1
  make: *** [build] Error 2

It looks like that with CYGINT_IO_CAN_CHANNELS == 1, can_lpc2xxx.c
cannot be compiled.

FYI: I get the same error for LPC-E2294 with such a configuration

  # Force CYGINT_IO_CAN_CHANNELS be 1
  cdl_configuration eCos {
      template    default ;
      package CYGPKG_IO_CAN current ;
  };
  cdl_component CYGPKG_DEVS_CAN_LPC2XXX_CAN1 {
      user_value 0
  };
  cdl_component CYGPKG_DEVS_CAN_LPC2XXX_CAN2 {
      user_value 0
  };
  cdl_component CYGPKG_DEVS_CAN_LPC2XXX_CAN3 {
      user_value 0
  };

Therefore, the error was not entered with the patch.  Could you, please,
look on the LPC2XXX CAN code? Thank you.

Sergei

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