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=-8.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 8B2C7C433E0 for ; Fri, 26 Feb 2021 14:01:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3621F64EED for ; Fri, 26 Feb 2021 14:01:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229823AbhBZOBl (ORCPT ); Fri, 26 Feb 2021 09:01:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229550AbhBZOBj (ORCPT ); Fri, 26 Feb 2021 09:01:39 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04327C06174A for ; Fri, 26 Feb 2021 06:00:59 -0800 (PST) Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lFdft-00022R-Lt; Fri, 26 Feb 2021 15:00:57 +0100 Received: from pengutronix.de (unknown [IPv6:2a03:f580:87bc:d400:adc1:3ee1:6274:c5d0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: mkl-all@blackshift.org) by smtp.blackshift.org (Postfix) with ESMTPSA id 03D7C5E9C0F; Fri, 26 Feb 2021 14:00:55 +0000 (UTC) Date: Fri, 26 Feb 2021 15:00:54 +0100 From: Marc Kleine-Budde To: Torin Cooper-Bennun Cc: linux-can@vger.kernel.org Subject: Re: can, tcan4x5x: look to merge rpi support into rpi kernel tree Message-ID: <20210226140054.725kihkdgkmtl3xf@pengutronix.de> References: <602651f9.1c69fb81.302a5.647d@mx.google.com> <20210215144509.rhds7oybzat6u27w@hardanger.blackshift.org> <20210226121854.4gb5yufb23hyar73@bigthink> <7254df67-202f-ac23-c45c-fcb5172a70a3@pengutronix.de> <20210226123144.cwhjberqeyjctc6w@bigthink> <2aebafa3-6a18-7d14-b32d-e17909d3d6a8@pengutronix.de> <20210226132620.wfuvywkzmhwfmhpc@bigthink> <20210226133936.q3o7hrshyurhj3ke@pengutronix.de> <20210226134522.kd3oxtx3u4ltjxos@bigthink> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="qu6tfvxxvfrnwma2" Content-Disposition: inline In-Reply-To: <20210226134522.kd3oxtx3u4ltjxos@bigthink> X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org --qu6tfvxxvfrnwma2 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 26.02.2021 13:45:22, Torin Cooper-Bennun wrote: > > Can you give me a reference to this? >=20 > Here's the manual for 3.3 (annoyingly, I can't find corresponding > documents for earlier M_CAN versions, and TCAN4550 uses 3.2...) https://github.com/hartkopp/M_CAN-User-Manual-History > http://www.bosch-semiconductors.com/media/ip_modules/pdf_2/m_can/mcan_use= rs_manual_v330.pdf >=20 > See Section 2.3.9, "Timestamp Counter Configuration (TSCC)". Quote: >=20 > Note: With CAN FD an external counter is required for timestamp > generation (TSS =3D =E2=80=9C10=E2=80=9D) I suggest to check on the tcan hardware, what's really in the register. Marc=20 --=20 Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | --qu6tfvxxvfrnwma2 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEK3kIWJt9yTYMP3ehqclaivrt76kFAmA4/xQACgkQqclaivrt 76kOgAf/cKl9HqyMVS4aukOitHfCD1P6jgzlYm3wVTksjSt55UvRfOaHWLrYH1sk rclpNPPsXS39Ode9kHt30lIgSoJ4QKjBPLXXkm+CLlxoAzXPmmg16tu2MVEB6yxs bTpO6qBlxVLehtOF+5BP7tUX9f7T0dOxv2lV0IQlSKWf6C8zp7KPMJXUyTFZGxRX oAtEcVoa5336uKHKJZO7t4LLgMlLzyNc54WG6d/21vq4y61WBMutiS+uwNa3dzhN CG/APvYYaxQ3O2dAUkQY+QuWa+FJ3BmmFLdYLD9EsbBs/e3kj5AgM68MHTyWY3FR gQ7U0ph5kza/2733n40Hm+g4GgZACw== =Z9Rr -----END PGP SIGNATURE----- --qu6tfvxxvfrnwma2--