1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2f2ffa5abSDezhong Diao /* 3f2ffa5abSDezhong Diao * MIPS support for CONFIG_OF device tree support 4f2ffa5abSDezhong Diao * 5f2ffa5abSDezhong Diao * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com> 6f2ffa5abSDezhong Diao */ 7f2ffa5abSDezhong Diao 8f2ffa5abSDezhong Diao #include <linux/init.h> 973bc256dSPaul Gortmaker #include <linux/export.h> 10f2ffa5abSDezhong Diao #include <linux/errno.h> 11f2ffa5abSDezhong Diao #include <linux/types.h> 1257c8a661SMike Rapoport #include <linux/memblock.h> 13f2ffa5abSDezhong Diao #include <linux/debugfs.h> 14f2ffa5abSDezhong Diao #include <linux/of.h> 15f2ffa5abSDezhong Diao #include <linux/of_fdt.h> 1684988c06SKevin Cernekee #include <linux/of_platform.h> 17f2ffa5abSDezhong Diao 1801306aeaSRob Herring #include <asm/bootinfo.h> 19f2ffa5abSDezhong Diao #include <asm/page.h> 20f2ffa5abSDezhong Diao #include <asm/prom.h> 21f2ffa5abSDezhong Diao 229169a5d0SJohn Crispin static char mips_machine_name[64] = "Unknown"; 239169a5d0SJohn Crispin 249169a5d0SJohn Crispin __init void mips_set_machine_name(const char *name) 259169a5d0SJohn Crispin { 269169a5d0SJohn Crispin if (name == NULL) 279169a5d0SJohn Crispin return; 289169a5d0SJohn Crispin 2941c8366bSChen Gang strlcpy(mips_machine_name, name, sizeof(mips_machine_name)); 309169a5d0SJohn Crispin pr_info("MIPS: machine is %s\n", mips_get_machine_name()); 319169a5d0SJohn Crispin } 329169a5d0SJohn Crispin 339169a5d0SJohn Crispin char *mips_get_machine_name(void) 349169a5d0SJohn Crispin { 359169a5d0SJohn Crispin return mips_machine_name; 369169a5d0SJohn Crispin } 379169a5d0SJohn Crispin 38d3557d96SJonas Gorski #ifdef CONFIG_USE_OF 3973346081SMarcin Nowakowski 400cdde839SRob Herring void __init __dt_setup_arch(void *bph) 41f2ffa5abSDezhong Diao { 42f75813c0SRob Herring if (!early_init_dt_scan(bph)) 43f75813c0SRob Herring return; 449169a5d0SJohn Crispin 4597e7f455SRob Herring mips_set_machine_name(of_flat_dt_get_machine_name()); 46f2ffa5abSDezhong Diao } 4784988c06SKevin Cernekee 4884988c06SKevin Cernekee int __init __dt_register_buses(const char *bus0, const char *bus1) 4984988c06SKevin Cernekee { 5084988c06SKevin Cernekee static struct of_device_id of_ids[3]; 5184988c06SKevin Cernekee 5284988c06SKevin Cernekee if (!of_have_populated_dt()) 5384988c06SKevin Cernekee panic("device tree not present"); 5484988c06SKevin Cernekee 5584988c06SKevin Cernekee strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible)); 569127dc47SKevin Cernekee if (bus1) { 579127dc47SKevin Cernekee strlcpy(of_ids[1].compatible, bus1, 589127dc47SKevin Cernekee sizeof(of_ids[1].compatible)); 599127dc47SKevin Cernekee } 6084988c06SKevin Cernekee 6184988c06SKevin Cernekee if (of_platform_populate(NULL, of_ids, NULL, NULL)) 6284988c06SKevin Cernekee panic("failed to populate DT"); 6384988c06SKevin Cernekee 6484988c06SKevin Cernekee return 0; 6584988c06SKevin Cernekee } 6684988c06SKevin Cernekee 67*cd04d58eSTiezhu Yang void __weak __init device_tree_init(void) 68*cd04d58eSTiezhu Yang { 69*cd04d58eSTiezhu Yang unflatten_and_copy_device_tree(); 70*cd04d58eSTiezhu Yang } 71*cd04d58eSTiezhu Yang 729169a5d0SJohn Crispin #endif 73