Message ID | 20240903-rockchip-canfd-v4-10-1dc3f3f32856@pengutronix.de (mailing list archive) |
---|---|
State | New |
Headers | show
Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6AA66CD13CF for <linux-arm-kernel@archiver.kernel.org>; Tue, 3 Sep 2024 09:31:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tie98BofKmdGQcw0LhOmw86VSgODQe20fVb3GUzaayI=; b=LCUnI8JzBWXiBpcduPLVwYUZJq O2ozQgeT8KPq/iKtE7SIFc6Z/DyehK/M/c514whj0F5x8L0DoauQe552XB08vOo5q3DrxypTomw7M vgiCug9+Gj25Ql3gw0ON4JoEm0jU9b/nD9TIwrKhqpdYvPSVZbZVOmDqrCGXKIRki2nCo9lLN7Wq0 OyZgPrzpB5gMUJISWG3TZxDPf4sovjB7+4B4jJnVRQWFWqd7heSDL/APiAZmc1lxKhqIHQQLptE8U BQthdiZxE9X53WBk2dPXTKemQKqSLYw8KIRkixlVvtCnyzzAsisseOgnHz94OGnLBOrK8ae+WzFLo YnYMWptA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1slPsq-0000000HA5y-0Xid; Tue, 03 Sep 2024 09:31:32 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1slPkP-0000000H7V3-25pR for linux-arm-kernel@bombadil.infradead.org; Tue, 03 Sep 2024 09:22:49 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Reply-To:Content-ID:Content-Description; bh=tie98BofKmdGQcw0LhOmw86VSgODQe20fVb3GUzaayI=; b=f3kUoAbUTCnvg9x7a815xP7JGo xXxWTmavbWsepsghCu0JVMaBtPOzjMThxfvP3UKL4LRnR+rw1ieov8z62xEFjwSKNTu2aDB8uYL3a Ey4II2KUaTHDN0z0acseY4VsdmVU1kSQwKIlT7egrYm8owt1monWJ+W/wc9Vh/ecS2CNMfN13tDfe 3dLxkCEGVcmgw5nu3bIQCjkareXciN0Y1BnIzngJaUP5HNZqQqI1PeBnlD2kKokfTxxnX2g5Cc5gu gVgRanCaWgFjKNQ3HmmYKADELMEqjX3wcsdGFXNTDQcKTUGT9ZkpK5ikbwRU113N33LOzLm3UP3x7 N5fs5Thg==; Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by desiato.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1slPkJ-0000000CIaz-2krc for linux-arm-kernel@lists.infradead.org; Tue, 03 Sep 2024 09:22:47 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <mkl@pengutronix.de>) id 1slPkH-0000nn-2C for linux-arm-kernel@lists.infradead.org; Tue, 03 Sep 2024 11:22:41 +0200 Received: from [2a0a:edc0:0:b01:1d::7b] (helo=bjornoya.blackshift.org) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from <mkl@pengutronix.de>) id 1slPkB-0059SC-Es for linux-arm-kernel@lists.infradead.org; Tue, 03 Sep 2024 11:22:35 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id C4A27331100 for <linux-arm-kernel@lists.infradead.org>; Tue, 03 Sep 2024 09:22:34 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id D1F1C331037; Tue, 03 Sep 2024 09:22:27 +0000 (UTC) Received: from [172.20.34.65] (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id dc242515; Tue, 3 Sep 2024 09:22:26 +0000 (UTC) From: Marc Kleine-Budde <mkl@pengutronix.de> Date: Tue, 03 Sep 2024 11:21:52 +0200 Subject: [PATCH can-next v4 10/20] can: rockchip_canfd: rkcanfd_register_done(): add warning for erratum 5 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240903-rockchip-canfd-v4-10-1dc3f3f32856@pengutronix.de> References: <20240903-rockchip-canfd-v4-0-1dc3f3f32856@pengutronix.de> In-Reply-To: <20240903-rockchip-canfd-v4-0-1dc3f3f32856@pengutronix.de> To: kernel@pengutronix.de, Alibek Omarov <a1ba.omarov@gmail.com>, Vincent Mailhol <mailhol.vincent@wanadoo.fr>, "David S. 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can: rockchip_canfd: add support for CAN-FD IP core found on Rockchip RK3568
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diff --git a/drivers/net/can/rockchip/rockchip_canfd-core.c b/drivers/net/can/rockchip/rockchip_canfd-core.c index 40911bb63623..d6c0f2fe8d2b 100644 --- a/drivers/net/can/rockchip/rockchip_canfd-core.c +++ b/drivers/net/can/rockchip/rockchip_canfd-core.c @@ -738,6 +738,13 @@ static void rkcanfd_register_done(const struct rkcanfd_priv *priv) FIELD_GET(RKCANFD_REG_RTL_VERSION_MAJOR, dev_id), FIELD_GET(RKCANFD_REG_RTL_VERSION_MINOR, dev_id), priv->devtype_data.quirks); + + if (priv->devtype_data.quirks & RKCANFD_QUIRK_RK3568_ERRATUM_5 && + priv->can.clock.freq < RKCANFD_ERRATUM_5_SYSCLOCK_HZ_MIN) + netdev_info(priv->ndev, + "Erratum 5: CAN clock frequency (%luMHz) lower than known good (%luMHz), expect degraded performance\n", + priv->can.clock.freq / MEGA, + RKCANFD_ERRATUM_5_SYSCLOCK_HZ_MIN / MEGA); } static int rkcanfd_register(struct rkcanfd_priv *priv)