linux-kernel - Re: [PATCH v10 0/5] can: bxcan: add support for ST bxCAN controller

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Message-ID: <20230328084710.jnrwvydewx3atxti@pengutronix.de>
Date:   Tue, 28 Mar 2023 10:47:10 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Dario Binacchi <dario.binacchi@...rulasolutions.com>
Cc:     linux-kernel@...r.kernel.org,
        Vincent Mailhol <mailhol.vincent@...adoo.fr>,
        Rob Herring <robh@...nel.org>,
        Amarula patchwork <linux-amarula@...rulasolutions.com>,
        michael@...rulasolutions.com,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Christophe Roullier <christophe.roullier@...s.st.com>,
        "David S. Miller" <davem@...emloft.net>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-can@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com, netdev@...r.kernel.org
Subject: Re: [PATCH v10 0/5] can: bxcan: add support for ST bxCAN controller

On 28.03.2023 09:33:23, Dario Binacchi wrote:
> The series adds support for the basic extended CAN controller (bxCAN)
> found in many low- to middle-end STM32 SoCs.
> 
> The driver has been tested on the stm32f469i-discovery board with a
> kernel version 5.19.0-rc2 in loopback + silent mode:
> 
> ip link set can0 type can bitrate 125000 loopback on listen-only on
> ip link set up can0
> candump can0 -L &
> cansend can0 300#AC.AB.AD.AE.75.49.AD.D1
> 
> For uboot and kernel compilation, as well as for rootfs creation I used
> buildroot:
> 
> make stm32f469_disco_sd_defconfig
> make
> 
> but I had to patch can-utils and busybox as can-utils and iproute are
> not compiled for MMU-less microcotrollers. In the case of can-utils,
> replacing the calls to fork() with vfork(), I was able to compile the
> package with working candump and cansend applications, while in the
> case of iproute, I ran into more than one problem and finally I decided
> to extend busybox's ip link command for CAN-type devices. I'm still
> wondering if it was really necessary, but this way I was able to test
> the driver.

Applied to linux-can-next.

Thanks,
Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   | https://www.pengutronix.de  |
Vertretung Nürnberg              | Phone: +49-5121-206917-129  |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

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