[kernel][ports] Add basic ports functionality

kernel/init.c

 /*
  * Copyright (c) 2013 Travis Geiselbrecht
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files
  * (the "Software"), to deal in the Software without restriction,
  * including without limitation the rights to use, copy, modify, merge,
  * publish, distribute, sublicense, and/or sell copies of the Software,
  * and to permit persons to whom the Software is furnished to do so,
  * subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be
  * included in all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 #include <compiler.h>
 #include <debug.h>
 #include <kernel/debug.h>
 #include <kernel/thread.h>
 #include <kernel/timer.h>
 #include <kernel/mp.h>
+#include <kernel/port.h>
 
 void kernel_init(void)
 {
         // if enabled, configure the kernel's event log
         kernel_evlog_init();
 
         // initialize the threading system
         dprintf(SPEW, "initializing mp\n");
         mp_init();
 
         // initialize the threading system
         dprintf(SPEW, "initializing threads\n");
         thread_init();
 
         // initialize kernel timers
         dprintf(SPEW, "initializing timers\n");
         timer_init();
+
+        // initialize ports
+        dprintf(SPEW, "initializing ports\n");
+        port_init();
 }