1628c3bb4SHuacai Chen // SPDX-License-Identifier: GPL-2.0
2628c3bb4SHuacai Chen /*
3628c3bb4SHuacai Chen * Author: Huacai Chen <chenhuacai@loongson.cn>
4628c3bb4SHuacai Chen *
5628c3bb4SHuacai Chen * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
6628c3bb4SHuacai Chen */
7628c3bb4SHuacai Chen #include <linux/acpi.h>
8628c3bb4SHuacai Chen #include <linux/efi.h>
9628c3bb4SHuacai Chen #include <linux/export.h>
10628c3bb4SHuacai Chen #include <linux/memblock.h>
11628c3bb4SHuacai Chen #include <asm/early_ioremap.h>
12628c3bb4SHuacai Chen #include <asm/bootinfo.h>
13628c3bb4SHuacai Chen #include <asm/loongson.h>
14*88d4d957SBinbin Zhou #include <asm/setup.h>
15628c3bb4SHuacai Chen
16628c3bb4SHuacai Chen u64 efi_system_table;
17628c3bb4SHuacai Chen struct loongson_system_configuration loongson_sysconf;
18628c3bb4SHuacai Chen EXPORT_SYMBOL(loongson_sysconf);
19628c3bb4SHuacai Chen
init_environ(void)20628c3bb4SHuacai Chen void __init init_environ(void)
21628c3bb4SHuacai Chen {
22628c3bb4SHuacai Chen int efi_boot = fw_arg0;
2340cd01a9SArd Biesheuvel char *cmdline = early_memremap_ro(fw_arg1, COMMAND_LINE_SIZE);
24628c3bb4SHuacai Chen
25628c3bb4SHuacai Chen if (efi_boot)
26628c3bb4SHuacai Chen set_bit(EFI_BOOT, &efi.flags);
27628c3bb4SHuacai Chen else
28628c3bb4SHuacai Chen clear_bit(EFI_BOOT, &efi.flags);
29628c3bb4SHuacai Chen
3040cd01a9SArd Biesheuvel strscpy(boot_command_line, cmdline, COMMAND_LINE_SIZE);
31*88d4d957SBinbin Zhou strscpy(init_command_line, cmdline, COMMAND_LINE_SIZE);
3240cd01a9SArd Biesheuvel early_memunmap(cmdline, COMMAND_LINE_SIZE);
33628c3bb4SHuacai Chen
3440cd01a9SArd Biesheuvel efi_system_table = fw_arg2;
35628c3bb4SHuacai Chen }
36628c3bb4SHuacai Chen
init_cpu_fullname(void)37628c3bb4SHuacai Chen static int __init init_cpu_fullname(void)
38628c3bb4SHuacai Chen {
39628c3bb4SHuacai Chen int cpu;
40628c3bb4SHuacai Chen
41628c3bb4SHuacai Chen if (loongson_sysconf.cpuname && !strncmp(loongson_sysconf.cpuname, "Loongson", 8)) {
42628c3bb4SHuacai Chen for (cpu = 0; cpu < NR_CPUS; cpu++)
43628c3bb4SHuacai Chen __cpu_full_name[cpu] = loongson_sysconf.cpuname;
44628c3bb4SHuacai Chen }
45628c3bb4SHuacai Chen return 0;
46628c3bb4SHuacai Chen }
47628c3bb4SHuacai Chen arch_initcall(init_cpu_fullname);
48628c3bb4SHuacai Chen
boardinfo_show(struct kobject * kobj,struct kobj_attribute * attr,char * buf)49628c3bb4SHuacai Chen static ssize_t boardinfo_show(struct kobject *kobj,
50628c3bb4SHuacai Chen struct kobj_attribute *attr, char *buf)
51628c3bb4SHuacai Chen {
52628c3bb4SHuacai Chen return sprintf(buf,
53628c3bb4SHuacai Chen "BIOS Information\n"
54628c3bb4SHuacai Chen "Vendor\t\t\t: %s\n"
55628c3bb4SHuacai Chen "Version\t\t\t: %s\n"
56628c3bb4SHuacai Chen "ROM Size\t\t: %d KB\n"
57628c3bb4SHuacai Chen "Release Date\t\t: %s\n\n"
58628c3bb4SHuacai Chen "Board Information\n"
59628c3bb4SHuacai Chen "Manufacturer\t\t: %s\n"
60628c3bb4SHuacai Chen "Board Name\t\t: %s\n"
61628c3bb4SHuacai Chen "Family\t\t\t: LOONGSON64\n\n",
62628c3bb4SHuacai Chen b_info.bios_vendor, b_info.bios_version,
63628c3bb4SHuacai Chen b_info.bios_size, b_info.bios_release_date,
64628c3bb4SHuacai Chen b_info.board_vendor, b_info.board_name);
65628c3bb4SHuacai Chen }
66628c3bb4SHuacai Chen
67628c3bb4SHuacai Chen static struct kobj_attribute boardinfo_attr = __ATTR(boardinfo, 0444,
68628c3bb4SHuacai Chen boardinfo_show, NULL);
69628c3bb4SHuacai Chen
boardinfo_init(void)70628c3bb4SHuacai Chen static int __init boardinfo_init(void)
71628c3bb4SHuacai Chen {
72628c3bb4SHuacai Chen struct kobject *loongson_kobj;
73628c3bb4SHuacai Chen
74628c3bb4SHuacai Chen loongson_kobj = kobject_create_and_add("loongson", firmware_kobj);
75628c3bb4SHuacai Chen
76628c3bb4SHuacai Chen return sysfs_create_file(loongson_kobj, &boardinfo_attr.attr);
77628c3bb4SHuacai Chen }
78628c3bb4SHuacai Chen late_initcall(boardinfo_init);
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