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kernel/linux-rt-4.4.41/arch/powerpc/platforms/85xx/mpc8536_ds.c 1.97 KB
5113f6f70   김현기   kernel add
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  /*
   * MPC8536 DS Board Setup
   *
   * Copyright 2008 Freescale Semiconductor, Inc.
   *
   * 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/stddef.h>
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/kdev_t.h>
  #include <linux/delay.h>
  #include <linux/seq_file.h>
  #include <linux/interrupt.h>
  #include <linux/of_platform.h>
  
  #include <asm/time.h>
  #include <asm/machdep.h>
  #include <asm/pci-bridge.h>
  #include <mm/mmu_decl.h>
  #include <asm/prom.h>
  #include <asm/udbg.h>
  #include <asm/mpic.h>
  #include <asm/swiotlb.h>
  
  #include <sysdev/fsl_soc.h>
  #include <sysdev/fsl_pci.h>
  
  #include "mpc85xx.h"
  
  void __init mpc8536_ds_pic_init(void)
  {
  	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
  			0, 256, " OpenPIC  ");
  	BUG_ON(mpic == NULL);
  	mpic_init(mpic);
  }
  
  /*
   * Setup the architecture
   */
  static void __init mpc8536_ds_setup_arch(void)
  {
  	if (ppc_md.progress)
  		ppc_md.progress("mpc8536_ds_setup_arch()", 0);
  
  	fsl_pci_assign_primary();
  
  	swiotlb_detect_4g();
  
  	printk("MPC8536 DS board from Freescale Semiconductor
  ");
  }
  
  machine_arch_initcall(mpc8536_ds, mpc85xx_common_publish_devices);
  
  machine_arch_initcall(mpc8536_ds, swiotlb_setup_bus_notifier);
  
  /*
   * Called very early, device-tree isn't unflattened
   */
  static int __init mpc8536_ds_probe(void)
  {
  	unsigned long root = of_get_flat_dt_root();
  
  	return of_flat_dt_is_compatible(root, "fsl,mpc8536ds");
  }
  
  define_machine(mpc8536_ds) {
  	.name			= "MPC8536 DS",
  	.probe			= mpc8536_ds_probe,
  	.setup_arch		= mpc8536_ds_setup_arch,
  	.init_IRQ		= mpc8536_ds_pic_init,
  #ifdef CONFIG_PCI
  	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
  	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
  #endif
  	.get_irq		= mpic_get_irq,
  	.restart		= fsl_rstcr_restart,
  	.calibrate_decr		= generic_calibrate_decr,
  	.progress		= udbg_progress,
  };