| /* |
| * MIPS support for CONFIG_OF device tree support |
| * |
| * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/export.h> |
| #include <linux/errno.h> |
| #include <linux/types.h> |
| #include <linux/bootmem.h> |
| #include <linux/debugfs.h> |
| #include <linux/of.h> |
| #include <linux/of_fdt.h> |
| #include <linux/of_platform.h> |
| |
| #include <asm/bootinfo.h> |
| #include <asm/page.h> |
| #include <asm/prom.h> |
| |
| static char mips_machine_name[64] = "Unknown"; |
| |
| __init void mips_set_machine_name(const char *name) |
| { |
| if (name == NULL) |
| return; |
| |
| strlcpy(mips_machine_name, name, sizeof(mips_machine_name)); |
| pr_info("MIPS: machine is %s\n", mips_get_machine_name()); |
| } |
| |
| char *mips_get_machine_name(void) |
| { |
| return mips_machine_name; |
| } |
| |
| #ifdef CONFIG_OF |
| void __init early_init_dt_add_memory_arch(u64 base, u64 size) |
| { |
| return add_memory_region(base, size, BOOT_MEM_RAM); |
| } |
| |
| void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) |
| { |
| return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)); |
| } |
| |
| void __init __dt_setup_arch(void *bph) |
| { |
| if (!early_init_dt_scan(bph)) |
| return; |
| |
| mips_set_machine_name(of_flat_dt_get_machine_name()); |
| } |
| |
| int __init __dt_register_buses(const char *bus0, const char *bus1) |
| { |
| static struct of_device_id of_ids[3]; |
| |
| if (!of_have_populated_dt()) |
| panic("device tree not present"); |
| |
| strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible)); |
| if (bus1) { |
| strlcpy(of_ids[1].compatible, bus1, |
| sizeof(of_ids[1].compatible)); |
| } |
| |
| if (of_platform_populate(NULL, of_ids, NULL, NULL)) |
| panic("failed to populate DT"); |
| |
| return 0; |
| } |
| |
| #endif |