From: Sven Schuchmann <schuchmann@schleissheimer.de>
To: Patrick Menschel <menschel.p@posteo.de>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Subject: AW: mcp251xfd No Oscillator (clock) defined
Date: Sun, 6 Dec 2020 16:28:40 +0000 [thread overview]
Message-ID: <DB8P190MB06340912153C0DE9B67A684DD9CF0@DB8P190MB0634.EURP190.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <fc13f0e7-d672-d62c-a51c-c7bccabc5f4e@posteo.de>
> Von: Patrick Menschel <menschel.p@posteo.de>
> Gesendet: Sonntag, 6. Dezember 2020 15:56
> An: Sven Schuchmann <schuchmann@schleissheimer.de>; linux-can@vger.kernel.org
> Betreff: Re: mcp251xfd No Oscillator (clock) defined
>
> > dtoverlay=spi1-1cs,cs0_pin=18
> However this line is not be necessary.
> It sets up spidev for spi1.
> https://github.com/raspberrypi/linux/blob/rpi-5.4.y/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts#L34
>
> The next overlay removes spidev again.
> https://github.com/raspberrypi/linux/blob/rpi-5.4.y/arch/arm/boot/dts/overlays/mcp251xfd-overlay.dts#L35
>
Thanks for pointing out, but if I do not have this line I get:
[ 4.897701] mcp251xfd spi1.0: Native CS is not supported - please configure cs-gpio in device-tree
[ 4.897720] spi_master spi1: will run message pump with realtime priority
[ 4.936590] mcp251xfd spi1.0 (unnamed net_device) (uninitialized): Failed to detect MCP251xFD (osc=0x00000000).
So I thought I have to configure CS with this?
Sven
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Sven Schuchmann
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next prev parent reply other threads:[~2020-12-06 16:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-06 10:18 mcp251xfd No Oscillator (clock) defined Sven Schuchmann
2020-12-06 10:32 ` Marc Kleine-Budde
2020-12-06 12:40 ` AW: " Sven Schuchmann
2020-12-06 12:57 ` Marc Kleine-Budde
2020-12-06 14:56 ` Patrick Menschel
2020-12-06 16:28 ` Sven Schuchmann [this message]
2020-12-06 18:31 ` Marc Kleine-Budde
2020-12-06 19:15 ` Patrick Menschel
2020-12-06 19:26 ` Kurt Van Dijck
2020-12-06 19:34 ` Marc Kleine-Budde
2020-12-06 19:56 ` AW: " Sven Schuchmann
2020-12-06 20:14 ` Marc Kleine-Budde
2020-12-06 20:36 ` AW: " Sven Schuchmann
2020-12-06 20:48 ` Marc Kleine-Budde
2020-12-06 21:23 ` AW: " Sven Schuchmann
2020-12-06 22:00 ` Marc Kleine-Budde
2020-12-07 9:35 ` AW: " Sven Schuchmann
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