From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB313C388F9 for ; Sat, 31 Oct 2020 15:35:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 19FDB22282 for ; Sat, 31 Oct 2020 15:35:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=posteo.de header.i=@posteo.de header.b="B4hjQ8ZD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727958AbgJaPfr (ORCPT ); Sat, 31 Oct 2020 11:35:47 -0400 Received: from mout01.posteo.de ([185.67.36.65]:43571 "EHLO mout01.posteo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727867AbgJaPfr (ORCPT ); Sat, 31 Oct 2020 11:35:47 -0400 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 98A6F16005C for ; Sat, 31 Oct 2020 16:35:44 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1604158544; bh=0XOHpxyt6JI6Eqlp4XeVfBDVS1c2P3MmHfLXDbwP4nc=; h=From:To:Cc:Autocrypt:Subject:Date:From; b=B4hjQ8ZDW306WaTjNEoBvf7yVMd3nmDdib3YehVhAp6ooHTOrd1wcXCniXPBKfroK GuFHmA0mIHVrbaZphz5a4Sut0BqERHXlK8GSNM29NlKe0GGLPRobKMUotMD2K+8ngj sztnP99mi6udsgAYr3i6rGote3m51lz7QGv9LjXroh6xzlzzwTWa4R+sgBify2JvRy wKMAOAkFKwB/BcUU4dwawQC8HAG9//vRIWkr53DrMrSpHiF17dJoIJCURmo/6otfX2 1rw0pA6bxvUuok5OlRXraf22sT6vGEqADBAQyPUkmyNZeUS7oSAQEGwKeRHkbrHpgx UpvHgZKqH4Uhw== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4CNjtm06m5z9rxH; Sat, 31 Oct 2020 16:35:43 +0100 (CET) From: Patrick Menschel To: Drew Fustini , Marc Kleine-Budde Cc: Oliver Hartkopp , linux-can@vger.kernel.org, Josh S References: <92dd7044-8f0d-154b-eb04-8cec1b572dd2@pengutronix.de> <2a1ddec7-ca28-ae44-dc06-f80f0017bf1f@pengutronix.de> <41b606d5-5991-4d4f-bd6f-aaaf31cbc9b5@pengutronix.de> <6a7061a4-771d-6703-1e30-273050abfb9d@posteo.de> <2593d8e0-2d42-0461-e2e1-86a71b415476@pengutronix.de> <3d19330b-860b-7d76-bc6d-768a7b00ed4b@pengutronix.de> Autocrypt: addr=menschel.p@posteo.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org > I believe Waveshare did choose other interrupt pins. > Marc used 24 25 which I also chose for a pHat I'm currently making > schematics for. > > Try these lines in /boot/config.txt > > dtoverlay=mcp251xfd-spi0-0,interrupt=25 > dtoverlay=mcp251xfd-spi1-0,interrupt=16 > > The waveshare overlay is strange in one point. It uses Pin 26 (instead > of 18) for Chip selection but that is no chip select pin. This can work > if the pin is output and luckily pulls the CE line in the right direction. > > https://gist.github.com/pdp7/784d0ba8b9648d20ab055747ec945225#file-2xmcp2517fd-overlay-dts-L40 > > https://pinout.xyz/pinout/pin37_gpio26# > > Maybe this has something to do with Nvidia Jetson Platform. > > -- > Patrick > Apparently Pin 26 is CE1 for SPI5, only available on Pi 4. https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README#L2674 -- Patrick