Re: [PATCH 3/3] MIPS: Loongson64: Add /proc/boardinfo

On 10/10/2020 04:01 PM, Jiaxun Yang wrote:

在 2020/10/9 下午6:57, Tiezhu Yang 写道:

quoted

Add /proc/boardinfo to 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.

Hi Tiezhu,

You're touching Kernel userspace API and I believe it should be 
documented. Also linux-api list
should be informed.

[RESEND due to the following reason:
Can not connect to recipient's server because of unstable
network or firewall filter. rcpt handle timeout,last handle
info: Host vger.kernel.org(23.128.96.18) command RCPT TO
respond timeout or disconnected]

Hi Jiaxun,

Thanks for your suggestion. I will do it as soon as possible and then 
send v2.

Also I'd like to know if it's really useful for mainline kernel.
For user who wants to check board information, dmidecode is already 
useful enough.

There is no SMBIOS and dmidecode can see nothing on some machines, like 
this:
[root@linux loongson]# dmidecode
# dmidecode 2.12
# No SMBIOS nor DMI entry point found, sorry.

So I think it is useful.

Thanks,
Tiezhu Yang

Thanks.

- Jiaxun

quoted

E.g. with this patch:

[loongson@linux ~]$ cat /proc/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

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
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