text: /*
   *  This program is free software; you can redistribute it and/or modify it
   *  under the terms of the GNU General Public License version 2 as published
   *  by the Free Software Foundation.
   *
   * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
   */
  
  #include <linux/export.h>
  #include <linux/clk.h>
  #include <linux/of_platform.h>
  #include <asm/bootinfo.h>
  #include <asm/time.h>
  
  #include <lantiq.h>
  
  #include "prom.h"
  #include "clk.h"
  
  /* access to the ebu needs to be locked between different drivers */
  DEFINE_SPINLOCK(ebu_lock);
  EXPORT_SYMBOL_GPL(ebu_lock);
  
  /*
   * this struct is filled by the soc specific detection code and holds
   * information about the specific soc type, revision and name
   */
  static struct ltq_soc_info soc_info;
  
  const char *get_system_type(void)
  {
  	return soc_info.sys_type;
  }
  
  void prom_free_prom_memory(void)
  {
  }
  
  static void __init prom_init_cmdline(void)
  {
  	int argc = fw_arg0;
  	char **argv = (char **) KSEG1ADDR(fw_arg1);
  	int i;
  
  	arcs_cmdline[0] = '\0';
  
  	for (i = 0; i < argc; i++) {
  		char *p = (char *) KSEG1ADDR(argv[i]);
  
  		if (CPHYSADDR(p) && *p) {
  			strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
  			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
  		}
  	}
  }
  
  void __init plat_mem_setup(void)
  {
  	ioport_resource.start = IOPORT_RESOURCE_START;
  	ioport_resource.end = IOPORT_RESOURCE_END;
  	iomem_resource.start = IOMEM_RESOURCE_START;
  	iomem_resource.end = IOMEM_RESOURCE_END;
  
  	set_io_port_base((unsigned long) KSEG1);
  
  	/*
  	 * Load the builtin devicetree. This causes the chosen node to be
  	 * parsed resulting in our memory appearing
  	 */
  	__dt_setup_arch(&__dtb_start);
  }
  
  void __init prom_init(void)
  {
  	/* call the soc specific detetcion code and get it to fill soc_info */
  	ltq_soc_detect(&soc_info);
  	snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
  		soc_info.name, soc_info.rev_type);
  	soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
  	pr_info("SoC: %s\n", soc_info.sys_type);
  	prom_init_cmdline();
  
  #if defined(CONFIG_MIPS_MT_SMP)
  	if (register_vsmp_smp_ops())
  		panic("failed to register_vsmp_smp_ops()");
  #endif
  }
  
  int __init plat_of_setup(void)
  {
  	static struct of_device_id of_ids[3];
  
  	if (!of_have_populated_dt())
  		panic("device tree not present");
  
  	strncpy(of_ids[0].compatible, soc_info.compatible,
  		sizeof(of_ids[0].compatible));
  	strncpy(of_ids[1].compatible, "simple-bus",
  		sizeof(of_ids[1].compatible));
  	return of_platform_bus_probe(NULL, of_ids, NULL);
  }
  
  arch_initcall(plat_of_setup);
  