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673a8c4f85
Add a description for /sys/firmware/lefi/boardinfo on the Loongson platform. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
36 lines
1.2 KiB
Plaintext
36 lines
1.2 KiB
Plaintext
What: /sys/firmware/lefi/boardinfo
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Date: October 2020
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Contact: Tiezhu Yang <yangtiezhu@loongson.cn>
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Description:
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Get mainboard and BIOS info easily on the Loongson platform,
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this is useful to point out the current used mainboard type
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and BIOS version when there exists problems related with
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hardware or firmware.
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The related structures are already defined in the interface
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specification about firmware and kernel which are common
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requirement and specific for Loongson64, so only add a new
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boardinfo.c file in arch/mips/loongson64.
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For example:
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[loongson@linux ~]$ cat /sys/firmware/lefi/boardinfo
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Board Info
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Manufacturer : LEMOTE
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Board Name : LEMOTE-LS3A4000-7A1000-1w-V01-pc
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Family : LOONGSON3
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BIOS Info
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Vendor : Kunlun
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Version : Kunlun-A1901-V4.1.3-20200414093938
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ROM Size : 4 KB
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Release Date : 2020-04-14
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By the way, using dmidecode command can get the similar info if there
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exists SMBIOS in firmware, but the fact is that there is no SMBIOS on
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some machines, we can see nothing when execute dmidecode, like this:
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[root@linux loongson]# dmidecode
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# dmidecode 2.12
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# No SMBIOS nor DMI entry point found, sorry.
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