1What:		/sys/firmware/lefi/boardinfo
2Date:		October 2020
3Contact:	Tiezhu Yang <yangtiezhu@loongson.cn>
4Description:
5		Get mainboard and BIOS info easily on the Loongson platform,
6		this is useful to point out the current used mainboard type
7		and BIOS version when there exists problems related with
8		hardware or firmware.
9
10		The related structures are already defined in the interface
11		specification about firmware and kernel which are common
12		requirement and specific for Loongson64, so only add a new
13		boardinfo.c file in arch/mips/loongson64.
14
15		For example:
16
17		[loongson@linux ~]$ cat /sys/firmware/lefi/boardinfo
18		Board Info
19		Manufacturer            : LEMOTE
20		Board Name              : LEMOTE-LS3A4000-7A1000-1w-V01-pc
21		Family                  : LOONGSON3
22
23		BIOS Info
24		Vendor                  : Kunlun
25		Version                 : Kunlun-A1901-V4.1.3-20200414093938
26		ROM Size                : 4 KB
27		Release Date            : 2020-04-14
28
29		By the way, using dmidecode command can get the similar info if there
30		exists SMBIOS in firmware, but the fact is that there is no SMBIOS on
31		some machines, we can see nothing when execute dmidecode, like this:
32
33		[root@linux loongson]# dmidecode
34		# dmidecode 2.12
35		# No SMBIOS nor DMI entry point found, sorry.
36