From: "Marek Behún" <kabel@kernel.org>
To: Robert Marko <robert.marko@sartura.hr>
Cc: "Pali Rohár" <pali@kernel.org>,
"Rob Herring" <robh+dt@kernel.org>,
"Andrew Lunn" <andrew@lunn.ch>,
gregory.clement@bootlin.com, sebastian.hesselbarth@gmail.com,
devicetree <devicetree@vger.kernel.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5] arm64: dts: marvell: add Globalscale MOCHAbin
Date: Fri, 8 Oct 2021 18:04:27 +0200 [thread overview]
Message-ID: <20211008180427.68be1d3f@thinkpad> (raw)
In-Reply-To: <CA+HBbNEDxBDvNZPSWnBYJOUhqdwonBhFwD9P0xhSGccdvQJx3Q@mail.gmail.com>
On Fri, 8 Oct 2021 17:52:40 +0200
Robert Marko <robert.marko@sartura.hr> wrote:
> I have to agree, so I did some digging.
> I don't think that the Armada 8k PCI driver actually supports HW level PERST#.
> I then looked at the functional specs and the only thing that looks
> related to PERST#
> is PCIe Software Reset Register which has a SoftWarePERst bit.
>
> Can you maybe look at it?
>
> Removed the reset-gpios and set the PERST pinmux to PCIe, and the
> QCA9377 card will
> show up, but I have no idea whether PERST# actually ever gets toggled.
You can check with voltmeter, toggle the bit via mw command in u-boot.
next prev parent reply other threads:[~2021-10-08 16:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-08 11:43 [PATCH v5] arm64: dts: marvell: add Globalscale MOCHAbin Robert Marko
2021-10-08 12:08 ` Pali Rohár
2021-10-08 13:28 ` Robert Marko
2021-10-08 13:43 ` Pali Rohár
2021-10-08 15:52 ` Robert Marko
2021-10-08 16:04 ` Marek Behún [this message]
2021-10-08 16:05 ` Robert Marko
2021-10-08 17:29 ` Pali Rohár
2021-10-08 20:51 ` Robert Marko
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