LXR linux/arch/mips/netlogic/xlp/dt.c

   1/*
   2 * Copyright 2003-2013 Broadcom Corporation.
   3 * All Rights Reserved.
   4 *
   5 * This software is available to you under a choice of one of two
   6 * licenses.  You may choose to be licensed under the terms of the GNU
   7 * General Public License (GPL) Version 2, available from the file
   8 * COPYING in the main directory of this source tree, or the Broadcom
   9 * license below:
  10 *
  11 * Redistribution and use in source and binary forms, with or without
  12 * modification, are permitted provided that the following conditions
  13 * are met:
  14 *
  15 * 1. Redistributions of source code must retain the above copyright
  16 *    notice, this list of conditions and the following disclaimer.
  17 * 2. Redistributions in binary form must reproduce the above copyright
  18 *    notice, this list of conditions and the following disclaimer in
  19 *    the documentation and/or other materials provided with the
  20 *    distribution.
  21 *
  22 * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
  23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25 * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
  26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  29 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  32 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33 */
  34
  35#include <linux/kernel.h>
  36#include <linux/memblock.h>
  37
  38#include <linux/of_fdt.h>
  39#include <linux/of_platform.h>
  40#include <linux/of_device.h>
  41
  42#include <asm/prom.h>
  43
  44extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[], __dtb_xlp_fvp_begin[],
  45        __dtb_xlp_gvp_begin[], __dtb_xlp_rvp_begin[];
  46static void *xlp_fdt_blob;
  47
  48void __init *xlp_dt_init(void *fdtp)
  49{
  50        if (!fdtp) {
  51                switch (current_cpu_data.processor_id & PRID_IMP_MASK) {
  52#ifdef CONFIG_DT_XLP_RVP
  53                case PRID_IMP_NETLOGIC_XLP5XX:
  54                        fdtp = __dtb_xlp_rvp_begin;
  55                        break;
  56#endif
  57#ifdef CONFIG_DT_XLP_GVP
  58                case PRID_IMP_NETLOGIC_XLP9XX:
  59                        fdtp = __dtb_xlp_gvp_begin;
  60                        break;
  61#endif
  62#ifdef CONFIG_DT_XLP_FVP
  63                case PRID_IMP_NETLOGIC_XLP2XX:
  64                        fdtp = __dtb_xlp_fvp_begin;
  65                        break;
  66#endif
  67#ifdef CONFIG_DT_XLP_SVP
  68                case PRID_IMP_NETLOGIC_XLP3XX:
  69                        fdtp = __dtb_xlp_svp_begin;
  70                        break;
  71#endif
  72#ifdef CONFIG_DT_XLP_EVP
  73                case PRID_IMP_NETLOGIC_XLP8XX:
  74                        fdtp = __dtb_xlp_evp_begin;
  75                        break;
  76#endif
  77                default:
  78                        /* Pick a built-in if any, and hope for the best */
  79                        fdtp = __dtb_start;
  80                        break;
  81                }
  82        }
  83        xlp_fdt_blob = fdtp;
  84        return fdtp;
  85}
  86
  87void __init xlp_early_init_devtree(void)
  88{
  89        __dt_setup_arch(xlp_fdt_blob);
  90}
  91
  92void __init device_tree_init(void)
  93{
  94        unflatten_and_copy_device_tree();
  95}
  96