Discussion:
[lm-sensors] IT8620E/IT8623E vs. IT8603E
Jean Delvare
2014-03-16 11:09:45 UTC
Permalink
Hi Rudolf,

Recently you added support for the IT8603E chip to the it87 driver.
Since then we had a number of requests to support the IT8620E and the
IT8623E as well, for which we do not have a datasheet.

Do you happen to know if there is some degree of compatibility between
these 3 chips?

Thanks,
--
Jean Delvare
SUSE L3 Support
Rudolf Marek
2014-03-16 11:58:00 UTC
Permalink
Hi Jean,
Post by Jean Delvare
Recently you added support for the IT8603E chip to the it87 driver.
Since then we had a number of requests to support the IT8620E and the
IT8623E as well, for which we do not have a datasheet.
Do you happen to know if there is some degree of compatibility between
these 3 chips?
No idea, but I guess they are quite similar. Maybe we can check regs 58h and 5bh
in HWM block. It should be 90h and 12h.

I will try to contact the Asus and we will see.

Thanks
Rudolf
Post by Jean Delvare
Thanks,
Rudolf Marek
2014-03-18 08:39:02 UTC
Permalink
Hi Jean,

The IT8623E is same asi IT8603E. Asus has no information about IT8620E.

Do you have any testers for IT8603E?

Thanks
Rudolf
Post by Rudolf Marek
Hi Jean,
Post by Jean Delvare
Recently you added support for the IT8603E chip to the it87 driver.
Since then we had a number of requests to support the IT8620E and the
IT8623E as well, for which we do not have a datasheet.
Do you happen to know if there is some degree of compatibility between
these 3 chips?
No idea, but I guess they are quite similar. Maybe we can check regs 58h and 5bh
in HWM block. It should be 90h and 12h.
I will try to contact the Asus and we will see.
Thanks
Rudolf
Post by Jean Delvare
Thanks,
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Jean Delvare
2014-03-18 09:08:55 UTC
Permalink
Hi Rudolf,
Post by Rudolf Marek
The IT8623E is same asi IT8603E.
OK, good to know. Do you know if it has the same ID (0x8603) as well, or
ID 0x8623? We could add proper support to sensors-detect and the it87
driver if we know that.
Post by Rudolf Marek
Asus has no information about IT8620E.
OK, too bad, thanks for asking anyway.
Post by Rudolf Marek
Do you have any testers for IT8603E?
No, I have a tester for IT8620E.

Thanks,
--
Jean Delvare
SUSE L3 Support
Rudolf Marek
2014-03-18 09:29:43 UTC
Permalink
Hi Jean

According to
http://lists.lm-sensors.org/pipermail/lm-sensors/2013-August/039551.html

Trying family `ITE'... Yes
Found unknown chip with ID 0x8623
(logical device 4 has address 0x290, could be sensors)

It has the ID of it8623. Will you have a time to prepare the patch or should I?

Thanks
Rudolf
Jean Delvare
2014-03-18 09:39:52 UTC
Permalink
Post by Rudolf Marek
Hi Jean
According to
http://lists.lm-sensors.org/pipermail/lm-sensors/2013-August/039551.html
Trying family `ITE'... Yes
Found unknown chip with ID 0x8623
(logical device 4 has address 0x290, could be sensors)
It has the ID of it8623. Will you have a time to prepare the patch or should I?
I will take care of sensors-detect and the wiki, and would appreciate
if you could write the patch for the it87 driver.

Thanks,
--
Jean Delvare
SUSE L3 Support
Rudolf Marek
2014-03-24 22:17:38 UTC
Permalink
Hi all,

I developed the patch and I need a test from the Martin. In fact I found small
typo (no code impact) which I will fix in the first patch, second patch just
adds documentation and it87 will treat the IT8623E as it would be IT8603E
similar way as we do for 8716/26 pair.

I will start new thread with my patches.

Thanks
Rudolf
Jean Delvare
2015-02-24 11:50:43 UTC
Permalink
Post by Rudolf Marek
Asus has no information about IT8620E.
For the record: the IT8620E turns out to be a custom chipset made by
ITE for Gigabyte, so it is no surprise that Asus had no information
about it. It also explains why the part number doesn't show up on ITE's
website.
--
Jean Delvare
SUSE L3 Support
Guenter Roeck
2015-02-24 18:51:18 UTC
Permalink
Post by Jean Delvare
Post by Rudolf Marek
Asus has no information about IT8620E.
For the record: the IT8620E turns out to be a custom chipset made by
ITE for Gigabyte, so it is no surprise that Asus had no information
about it. It also explains why the part number doesn't show up on ITE's
website.
Do we know enough about the chip to add support for it ?

I have a patch adding experimental support for it, but of course
there is a lot of guesswork involved.

Guenter
Sebastian Hahn
2016-02-17 20:59:47 UTC
Permalink
Hi there,
Post by Guenter Roeck
Post by Jean Delvare
Post by Rudolf Marek
Asus has no information about IT8620E.
For the record: the IT8620E turns out to be a custom chipset made by
ITE for Gigabyte, so it is no surprise that Asus had no information
about it. It also explains why the part number doesn't show up on ITE's
website.
Do we know enough about the chip to add support for it ?
I have a patch adding experimental support for it, but of course
there is a lot of guesswork involved.
Guenter
Is this still an open issue that needs testing? I have a gigabyte mainboard
with the IT8620E and am very willing to test this if it is helpful.

Cheers
Sebastian
Guenter Roeck
2016-02-17 22:16:03 UTC
Permalink
Post by Sebastian Hahn
Hi there,
Post by Guenter Roeck
Post by Jean Delvare
Post by Rudolf Marek
Asus has no information about IT8620E.
For the record: the IT8620E turns out to be a custom chipset made by
ITE for Gigabyte, so it is no surprise that Asus had no information
about it. It also explains why the part number doesn't show up on ITE's
website.
Do we know enough about the chip to add support for it ?
I have a patch adding experimental support for it, but of course
there is a lot of guesswork involved.
Guenter
Is this still an open issue that needs testing? I have a gigabyte mainboard
with the IT8620E and am very willing to test this if it is helpful.
Hi Sebastian,

Additional tests results are always welcome. Please try the driver at
https://github.com/groeck/it87.

Thanks,
Guenter

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