arch/ppc/kernel/rio.c

   1 /*
   2  * RapidIO PPC32 support
   3  *
   4  * Copyright 2005 MontaVista Software, Inc.
   5  * Matt Porter <mporter@kernel.crashing.org>
   6  *
   7  * This program is free software; you can redistribute  it and/or modify it
   8  * under  the terms of  the GNU General  Public License as published by the
   9  * Free Software Foundation;  either version 2 of the  License, or (at your
  10  * option) any later version.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/kernel.h>
  15 #include <linux/rio.h>
  16
  17 #include <asm/rio.h>
  18
  19 /**
  20  * platform_rio_init - Do platform specific RIO init
  21  *
  22  * Any platform specific initialization of RapdIO
  23  * hardware is done here as well as registration
  24  * of any active master ports in the system.
  25  */
  26 void __attribute__ ((weak))
  27     platform_rio_init(void)
  28 {
  29         printk(KERN_WARNING "RIO: No platform_rio_init() present\n");
  30 }
  31
  32 /**
  33  * ppc_rio_init - Do PPC32 RIO init
  34  *
  35  * Calls platform-specific RIO init code and then calls
  36  * rio_init_mports() to initialize any master ports that
  37  * have been registered with the RIO subsystem.
  38  */
  39 static int __init ppc_rio_init(void)
  40 {
  41         printk(KERN_INFO "RIO: RapidIO init\n");
  42
  43         /* Platform specific initialization */
  44         platform_rio_init();
  45
  46         /* Enumerate all registered ports */
  47         rio_init_mports();
  48
  49         return 0;
  50 }
  51
  52 subsys_initcall(ppc_rio_init);