From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Tremer <michael.tremer@ipfire.org>
To: sig-arm@lists.ipfire.org
Subject: Re: ClearFog PCIe not working with v2.21-core126
Date: Fri, 15 Feb 2019 11:34:03 +0000
Message-ID: <1E2E2227-9F33-4C8A-A036-3890668673DE@ipfire.org>
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Hello Luis,

Thank you for writing.

I think there should be no problem to enable these options.

Would you please open a ticket on our Bugzilla and I will assign it to the ri=
ght person?

Best,
-Michael

> On 14 Feb 2019, at 19:53, Lu=C3=ADs Mendes <luis.p.mendes(a)gmail.com> wrot=
e:
>=20
> Hi all,
>=20
> I noticed that the ipfire kernel configuration doesn't include the
> driver for I2C GPIO expander chip PCA9655 which is a required
> dependency for the PCIe controller. Since the PCIe card reset and
> clock request signals are provided by this expander chip, without such
> driver, Linux simply ignores the entire PCIe subsystem.
>=20
> I've tested that adding the following options to the kernel
> configuration fixes the issue:
> CONFIG_GPIO_PCA953X=3Dy
> CONFIG_GPIO_PCA953X_IRQ=3Dy
>=20
> Unfortunately IRQ option is only available is module is complied as
> kernel built-in. IRQ is relevant, because the USB subsystem relies on
> it to monitor USB port OverCurrent conditions, through the same GPIO
> expander chip.
>=20
> Can these kernel configurations option be added to ipfire? It would be
> relevant to allow for additional Ethernet ports.
>=20
> Regards,
> Lu=C3=ADs Mendes
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> SIG-ARM(a)lists.ipfire.org
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