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
44 extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[], __dtb_xlp_fvp_begin[],
45 __dtb_xlp_gvp_begin[], __dtb_xlp_rvp_begin[];
46 static void *xlp_fdt_blob;
47
xlp_dt_init(void * fdtp)48 void __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
xlp_early_init_devtree(void)87 void __init xlp_early_init_devtree(void)
88 {
89 __dt_setup_arch(xlp_fdt_blob);
90 }
91
device_tree_init(void)92 void __init device_tree_init(void)
93 {
94 unflatten_and_copy_device_tree();
95 }
96
97 static struct of_device_id __initdata xlp_ids[] = {
98 { .compatible = "simple-bus", },
99 {},
100 };
101
xlp8xx_ds_publish_devices(void)102 int __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
109 device_initcall(xlp8xx_ds_publish_devices);
110