1 // SPDX-License-Identifier: GPL-2.0-or-later !! 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* 2 /*
3 * OpenRISC prom.c !! 3 * MIPS support for CONFIG_OF device tree support
4 * 4 *
5 * Linux architectural port borrowing liberall !! 5 * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
6 * others. All original copyrights apply as p <<
7 * declaration. <<
8 * <<
9 * Modifications for the OpenRISC architecture <<
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@s <<
11 * <<
12 * Architecture specific procedures for creati <<
13 * interpreting the device tree. <<
14 */ 6 */
15 7
16 #include <linux/init.h> 8 #include <linux/init.h>
>> 9 #include <linux/export.h>
>> 10 #include <linux/errno.h>
17 #include <linux/types.h> 11 #include <linux/types.h>
18 #include <linux/memblock.h> 12 #include <linux/memblock.h>
>> 13 #include <linux/debugfs.h>
>> 14 #include <linux/of.h>
19 #include <linux/of_fdt.h> 15 #include <linux/of_fdt.h>
>> 16 #include <linux/of_platform.h>
20 17
>> 18 #include <asm/bootinfo.h>
21 #include <asm/page.h> 19 #include <asm/page.h>
>> 20 #include <asm/prom.h>
>> 21
>> 22 static char mips_machine_name[64] = "Unknown";
>> 23
>> 24 __init void mips_set_machine_name(const char *name)
>> 25 {
>> 26 if (name == NULL)
>> 27 return;
>> 28
>> 29 strscpy(mips_machine_name, name, sizeof(mips_machine_name));
>> 30 pr_info("MIPS: machine is %s\n", mips_get_machine_name());
>> 31
>> 32 dump_stack_set_arch_desc(name);
>> 33 }
>> 34
>> 35 char *mips_get_machine_name(void)
>> 36 {
>> 37 return mips_machine_name;
>> 38 }
>> 39
>> 40 #ifdef CONFIG_USE_OF
22 41
23 void __init early_init_devtree(void *params) !! 42 void __init __dt_setup_arch(void *bph)
24 { 43 {
25 early_init_dt_scan(params); !! 44 if (!early_init_dt_scan(bph))
26 memblock_allow_resize(); !! 45 return;
>> 46
>> 47 mips_set_machine_name(of_flat_dt_get_machine_name());
>> 48 }
>> 49
>> 50 int __init __dt_register_buses(const char *bus0, const char *bus1)
>> 51 {
>> 52 static struct of_device_id of_ids[3];
>> 53
>> 54 if (!of_have_populated_dt())
>> 55 panic("device tree not present");
>> 56
>> 57 strscpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
>> 58 if (bus1) {
>> 59 strscpy(of_ids[1].compatible, bus1,
>> 60 sizeof(of_ids[1].compatible));
>> 61 }
>> 62
>> 63 if (of_platform_populate(NULL, of_ids, NULL, NULL))
>> 64 panic("failed to populate DT");
>> 65
>> 66 return 0;
>> 67 }
>> 68
>> 69 void __weak __init device_tree_init(void)
>> 70 {
>> 71 unflatten_and_copy_device_tree();
27 } 72 }
>> 73
>> 74 #endif
28 75
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