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kernel/linux-rt-4.4.41/arch/powerpc/platforms/44x/ebony.c 1.7 KB
5113f6f70   김현기   kernel add
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  /*
   * Ebony board specific routines
   *
   * Matt Porter <mporter@kernel.crashing.org>
   * Copyright 2002-2005 MontaVista Software Inc.
   *
   * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
   * Copyright (c) 2003-2005 Zultys Technologies
   *
   * Rewritten and ported to the merged powerpc tree:
   * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
   *
   * This program is free software; you can redistribute  it and/or modify it
   * under  the terms of  the GNU General  Public License as published by the
   * Free Software Foundation;  either version 2 of the  License, or (at your
   * option) any later version.
   */
  
  #include <linux/init.h>
  #include <linux/of_platform.h>
  #include <linux/rtc.h>
  
  #include <asm/machdep.h>
  #include <asm/prom.h>
  #include <asm/udbg.h>
  #include <asm/time.h>
  #include <asm/uic.h>
  #include <asm/pci-bridge.h>
  #include <asm/ppc4xx.h>
  
  static const struct of_device_id ebony_of_bus[] __initconst = {
  	{ .compatible = "ibm,plb4", },
  	{ .compatible = "ibm,opb", },
  	{ .compatible = "ibm,ebc", },
  	{},
  };
  
  static int __init ebony_device_probe(void)
  {
  	of_platform_bus_probe(NULL, ebony_of_bus, NULL);
  	of_instantiate_rtc();
  
  	return 0;
  }
  machine_device_initcall(ebony, ebony_device_probe);
  
  /*
   * Called very early, MMU is off, device-tree isn't unflattened
   */
  static int __init ebony_probe(void)
  {
  	unsigned long root = of_get_flat_dt_root();
  
  	if (!of_flat_dt_is_compatible(root, "ibm,ebony"))
  		return 0;
  
  	pci_set_flags(PCI_REASSIGN_ALL_RSRC);
  
  	return 1;
  }
  
  define_machine(ebony) {
  	.name			= "Ebony",
  	.probe			= ebony_probe,
  	.progress		= udbg_progress,
  	.init_IRQ		= uic_init_tree,
  	.get_irq		= uic_get_irq,
  	.restart		= ppc4xx_reset_system,
  	.calibrate_decr		= generic_calibrate_decr,
  };