2 * Copyright 2003-2013 Broadcom Corporation.
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
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12 * modification, are permitted provided that the following conditions
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17 * 2. Redistributions in binary form must reproduce the above copyright
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23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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35 #include <linux/kernel.h>
36 #include <linux/bootmem.h>
38 #include <linux/of_fdt.h>
39 #include <linux/of_platform.h>
40 #include <linux/of_device.h>
44 extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[],
45 __dtb_xlp_fvp_begin[], __dtb_xlp_gvp_begin[], __dtb_start[];
46 static void *xlp_fdt_blob;
48 void __init *xlp_dt_init(void *fdtp)
51 switch (current_cpu_data.processor_id & 0xff00) {
52 #ifdef CONFIG_DT_XLP_GVP
53 case PRID_IMP_NETLOGIC_XLP9XX:
54 fdtp = __dtb_xlp_gvp_begin;
57 #ifdef CONFIG_DT_XLP_FVP
58 case PRID_IMP_NETLOGIC_XLP2XX:
59 fdtp = __dtb_xlp_fvp_begin;
62 #ifdef CONFIG_DT_XLP_SVP
63 case PRID_IMP_NETLOGIC_XLP3XX:
64 fdtp = __dtb_xlp_svp_begin;
67 #ifdef CONFIG_DT_XLP_EVP
68 case PRID_IMP_NETLOGIC_XLP8XX:
69 fdtp = __dtb_xlp_evp_begin;
73 /* Pick a built-in if any, and hope for the best */
82 void __init xlp_early_init_devtree(void)
84 __dt_setup_arch(xlp_fdt_blob);
85 strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
88 void __init device_tree_init(void)
90 unsigned long base, size;
91 struct boot_param_header *fdtp = xlp_fdt_blob;
96 base = virt_to_phys(fdtp);
97 size = be32_to_cpu(fdtp->totalsize);
99 /* Before we do anything, lets reserve the dt blob */
100 reserve_bootmem(base, size, BOOTMEM_DEFAULT);
102 unflatten_device_tree();
104 /* free the space reserved for the dt blob */
105 free_bootmem(base, size);
108 static struct of_device_id __initdata xlp_ids[] = {
109 { .compatible = "simple-bus", },
113 int __init xlp8xx_ds_publish_devices(void)
115 if (!of_have_populated_dt())
117 return of_platform_bus_probe(NULL, xlp_ids, NULL);
120 device_initcall(xlp8xx_ds_publish_devices);