2020-10-13 11:35:52

by Tiezhu Yang

Subject: [PATCH 0/2] Add /sys/firmware/lefi/boardinfo for Loongson64

Tiezhu Yang (2):
MIPS: Loongson64: Add /sys/firmware/lefi/boardinfo
Documentation: ABI: Add /sys/firmware/lefi/boardinfo description for
Loongson64

.../ABI/testing/sysfs-firmware-lefi-boardinfo | 35 ++++++++++++++++
arch/mips/include/asm/mach-loongson64/boot_param.h | 4 ++
arch/mips/loongson64/Makefile | 1 +
arch/mips/loongson64/boardinfo.c | 48 ++++++++++++++++++++++
arch/mips/loongson64/env.c | 10 +++++
5 files changed, 98 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-firmware-lefi-boardinfo
create mode 100644 arch/mips/loongson64/boardinfo.c

--
2.1.0

2020-10-13 16:10:02

by Tiezhu Yang

Subject: [PATCH 2/2] Documentation: ABI: Add /sys/firmware/lefi/boardinfo description for Loongson64

Add a description for /sys/firmware/lefi/boardinfo on the Loongson
platform.

Signed-off-by: Tiezhu Yang <[email protected]>
---
.../ABI/testing/sysfs-firmware-lefi-boardinfo | 35 ++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-firmware-lefi-boardinfo

diff --git a/Documentation/ABI/testing/sysfs-firmware-lefi-boardinfo b/Documentation/ABI/testing/sysfs-firmware-lefi-boardinfo
new file mode 100644
index 0000000..5e3f614
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-lefi-boardinfo
@@ -0,0 +1,35 @@
+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.
--
2.1.0