From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Patrick Menschel <menschel.p@posteo.de>,
linux-can <linux-can@vger.kernel.org>
Subject: Re: Testing CAN on Allwinner A20 / Banana Pi
Date: Sat, 19 Mar 2016 13:33:41 +0100 [thread overview]
Message-ID: <56ED4725.8080209@pengutronix.de> (raw)
In-Reply-To: <56ED45C9.7080803@posteo.de>
On 03/19/2016 01:27 PM, Patrick Menschel wrote:
> you mentioned that you have a running Bpi with mainline kernel.
>
> My question would be if you're also running mainline u-boot with device
> tree bindings.
I'm running a u-boot, not sure which version.
> I'm now running mainline kernel from stable branch
> compiled with sunxi_defconfig thus CAN driver is built-in and mainline
> u-boot according to
>
> http://linux-sunxi.org/Mainline_Kernel_Howto
> http://linux-sunxi.org/Mainline_U-boot
> .
>
> I've added can0 entries manually to
>
> arch/arm/boot/dts/sun7i-a20.dtsi
> arch/arm/boot/dts/sun7i-a20-bananapi.dts
>
> since they are missing in the stable branch.
>
> Compiling to dtb and back to dts now resolves to
>
> can@01c2bc00 {
> compatible = "allwinner,sun4i-a10-can";
> reg = <0x1c2bc00 0x400>;
> interrupts = <0x0 0x1a 0x4>;
> clocks = <0x31 0x4>;
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <0x32>;
> };
>
> That does look plausible from my perspective.
>
> Unfortunately I'm still missing /dev/can0 and have no clue why.
CAN devices are network devices and will not show up in "/dev". Have a
look at:
ifconfig -a
> If your Bpi works with legacy u-boot, I would try that next.
Marc
--
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next prev parent reply other threads:[~2016-03-19 12:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-12 8:51 Testing CAN on Allwinner A20 / Banana Pi Patrick Menschel
2015-09-12 9:13 ` Marc Kleine-Budde
2015-09-12 13:40 ` Patrick Menschel
2016-03-19 12:27 ` Patrick Menschel
2016-03-19 12:33 ` Marc Kleine-Budde [this message]
2016-03-19 12:50 ` Patrick Menschel
2016-03-19 12:53 ` Marc Kleine-Budde
2016-03-21 9:27 ` gianluca
2016-03-21 13:05 ` Patrick Menschel
2016-03-21 16:14 ` Marc Kleine-Budde
2016-03-21 17:08 ` Patrick Menschel
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