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- What: /sys/firmware/lefi/boardinfo
- Date: October 2020
- Contact: Tiezhu Yang <[email protected]>
- Description:
- Get mainboard and BIOS info easily on the Loongson platform,
- this is useful to point out the current used mainboard type
- and BIOS version when there exists problems related with
- hardware or firmware.
- The related structures are already defined in the interface
- specification about firmware and kernel which are common
- requirement and specific for Loongson64, so only add a new
- boardinfo.c file in arch/mips/loongson64.
- For example:
- [loongson@linux ~]$ cat /sys/firmware/lefi/boardinfo
- Board Info
- Manufacturer : LEMOTE
- Board Name : LEMOTE-LS3A4000-7A1000-1w-V01-pc
- Family : LOONGSON3
- BIOS Info
- Vendor : Kunlun
- Version : Kunlun-A1901-V4.1.3-20200414093938
- ROM Size : 4 KB
- Release Date : 2020-04-14
- By the way, using dmidecode command can get the similar info if there
- exists SMBIOS in firmware, but the fact is that there is no SMBIOS on
- some machines, we can see nothing when execute dmidecode, like this:
- [root@linux loongson]# dmidecode
- # dmidecode 2.12
- # No SMBIOS nor DMI entry point found, sorry.
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