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/bootmem.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
 97static struct of_device_id __initdata xlp_ids[] = {
 98	{ .compatible = "simple-bus", },
 99	{},
100};
101
102int __init xlp8xx_ds_publish_devices(void)
103{
104	if (!of_have_populated_dt())
105		return 0;
106	return of_platform_bus_probe(NULL, xlp_ids, NULL);
107}
108
109device_initcall(xlp8xx_ds_publish_devices);