arch/openrisc/kernel/prom.c

   1 /*
   2  * OpenRISC prom.c
   3  *
   4  * Linux architectural port borrowing liberally from similar works of
   5  * others.  All original copyrights apply as per the original source
   6  * declaration.
   7  *
   8  * Modifications for the OpenRISC architecture:
   9  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
  10  *
  11  *      This program is free software; you can redistribute it and/or
  12  *      modify it under the terms of the GNU General Public License
  13  *      as published by the Free Software Foundation; either version
  14  *      2 of the License, or (at your option) any later version.
  15  *
  16  * Architecture specific procedures for creating, accessing and
  17  * interpreting the device tree.
  18  *
  19  */
  20
  21 #include <stdarg.h>
  22 #include <linux/kernel.h>
  23 #include <linux/string.h>
  24 #include <linux/init.h>
  25 #include <linux/threads.h>
  26 #include <linux/spinlock.h>
  27 #include <linux/types.h>
  28 #include <linux/pci.h>
  29 #include <linux/stringify.h>
  30 #include <linux/delay.h>
  31 #include <linux/initrd.h>
  32 #include <linux/bitops.h>
  33 #include <linux/module.h>
  34 #include <linux/kexec.h>
  35 #include <linux/debugfs.h>
  36 #include <linux/irq.h>
  37 #include <linux/memblock.h>
  38 #include <linux/of_fdt.h>
  39
  40 #include <asm/prom.h>
  41 #include <asm/page.h>
  42 #include <asm/processor.h>
  43 #include <asm/irq.h>
  44 #include <linux/io.h>
  45 #include <asm/mmu.h>
  46 #include <asm/pgtable.h>
  47 #include <asm/sections.h>
  48 #include <asm/setup.h>
  49
  50 void __init early_init_devtree(void *params)
  51 {
  52         early_init_dt_scan(params);
  53         memblock_allow_resize();
  54 }
  55
  56 #ifdef CONFIG_BLK_DEV_INITRD
  57 void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
  58 {
  59         initrd_start = (unsigned long)__va(start);
  60         initrd_end = (unsigned long)__va(end);
  61         initrd_below_start_ok = 1;
  62 }
  63 #endif