2 * MIPS support for CONFIG_OF device tree support
4 * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/init.h>
12 #include <linux/export.h>
13 #include <linux/errno.h>
14 #include <linux/types.h>
15 #include <linux/bootmem.h>
16 #include <linux/debugfs.h>
18 #include <linux/of_fdt.h>
19 #include <linux/of_platform.h>
24 static char mips_machine_name[64] = "Unknown";
26 __init void mips_set_machine_name(const char *name)
31 strlcpy(mips_machine_name, name, sizeof(mips_machine_name));
32 pr_info("MIPS: machine is %s\n", mips_get_machine_name());
35 char *mips_get_machine_name(void)
37 return mips_machine_name;
41 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
43 return add_memory_region(base, size, BOOT_MEM_RAM);
46 void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
48 return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
51 void __init __dt_setup_arch(void *bph)
53 if (!early_init_dt_scan(bph))
56 mips_set_machine_name(of_flat_dt_get_machine_name());
59 int __init __dt_register_buses(const char *bus0, const char *bus1)
61 static struct of_device_id of_ids[3];
63 if (!of_have_populated_dt())
64 panic("device tree not present");
66 strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
68 strlcpy(of_ids[1].compatible, bus1,
69 sizeof(of_ids[1].compatible));
72 if (of_platform_populate(NULL, of_ids, NULL, NULL))
73 panic("failed to populate DT");