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[SOLVED] Unclaimed hardware in lshw
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freke
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PostPosted: Mon Jun 19, 2017 6:29 pm    Post subject: [SOLVED] Unclaimed hardware in lshw Reply with quote

Hi,

I'm installing my PCEngines APU2c4 and have the following piece of hw in lshw:
Code:
*-serial UNCLAIMED
             description: SMBus
             product: FCH SMBus Controller
             vendor: Advanced Micro Devices, Inc. [AMD]
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 42
             width: 32 bits
             clock: 66MHz
             configuration: latency=0
It's probably not going to be used anytime soon, but I'd like to have everything up and running.
Any ideas as to what I'm missing in the kernel?

lspci -v
Code:
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 42)
        Subsystem: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
        Flags: 66MHz, medium devsel


Also noticed I have the (more or less) same serial/SMBus unclaimed on my older APU1d4
Code:
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 42)
        Subsystem: Advanced Micro Devices, Inc. [AMD] SBx00 SMBus Controller
        Flags: 66MHz, medium devsel


Last edited by freke on Tue Jun 20, 2017 1:36 pm; edited 1 time in total
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szatox
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PostPosted: Mon Jun 19, 2017 7:53 pm    Post subject: Reply with quote

Code:
        *-serial
             description: SMBus
             product: FCH SMBus Controller
             vendor: Advanced Micro Devices, Inc. [AMD]
             physical id: 14
             bus info: pci@0000:00:14.0
             version: 13
             width: 32 bits
             clock: 66MHz
             configuration: driver=piix4_smbus latency=0
             resources: irq:0

You're welcome.

I have a different mobo, but linux drivers are reasonably generic, so it should do the trick. Or at least give you a hint on digging through menuconfig.
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charles17
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PostPosted: Tue Jun 20, 2017 4:26 am    Post subject: Re: Unclaimed hardware in lshw Reply with quote

freke wrote:
I'm installing my PCEngines APU2c4 and have the following piece of hw in lshw:
What about running lshw from latest https://sysresccd.org?
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PrSo
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PostPosted: Tue Jun 20, 2017 8:20 am    Post subject: Reply with quote

Code:
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 42)
        Subsystem: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
        Flags: 66MHz, medium devsel


IMHO the "sp5100_tco" kernel module is adequate for this device.
It is AMD/ATI SP5100 Timer/Watchdog, in kernel config:
Device Drivers -> Watchdog Timer Support -> AMD/ATI SP5100 Timer/Watchdog
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freke
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PostPosted: Tue Jun 20, 2017 1:36 pm    Post subject: Reply with quote

Thanks :)
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Jaglover
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Joined: 29 May 2005
Posts: 5851
Location: Saint Amant, Acadiana

PostPosted: Tue Jun 20, 2017 2:18 pm    Post subject: Reply with quote

Here's how I do install on new unknown to me hardware. First SystemRescueCD as install media, using the latest kernel (alternative kernel from boot menu). From there I run lspci -nnk > /root/lspci to have a record of PCI hardware. When in doubt I will look it up at cateee.net using PCI ID from previous command.
For instance:
Code:
00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-H SMBus [8086:a123] (rev 31)
        Subsystem: ASRock Incorporation Sunrise Point-H SMBus [1849:a123]
        Kernel driver in use: i801_smbus

The PCI ID's of interest are obviously 8086:a123 and 1849:a123.

cateee.net tells me 8086:a123 driver has been in kernel since 3.18.
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Ant P.
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PostPosted: Tue Jun 20, 2017 7:26 pm    Post subject: Reply with quote

http://kmuto.jp/debian/hcl/ will tell you what driver a given device uses.
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Jaglover
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PostPosted: Fri Jun 23, 2017 4:02 pm    Post subject: Reply with quote

Ant P. wrote:
http://kmuto.jp/debian/hcl/ will tell you what driver a given device uses.

It has been abandoned by maintainer for years. Newer hardware is missing.
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