From patchwork Wed Feb 21 15:24:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 13565708 Return-Path: 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 1A2BEC48BEB for ; Wed, 21 Feb 2024 15:24:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Hlm8VX/k2TLh7geucjEO7wQVIfEjPsTrNIdeJr60iJU=; b=oSVu8oNS0SoThC G/9jMTg+UPjbrcn71ttUOIAEuF6ZbRA9XVftCUdpSk9/RxlLLP1zVdaq227RU0+d/QYHyvDwfshZ3 jUMtdcCcW9kYisufJlurvX9wyQ8ONmyISkDTGXBGlnInb9z+uePlSCe5LRf+XTdbGpFmD346jLQlb gH0LWCPYSzUND7P7OtoMQWjK7P9TmFOvFMZbM7lrDhOlB4byLWqpk1Moec9SxPPXWq39cmlhwm5I4 7w1TBmVKnS7Kyzt3faNrENHfwRJLoDxWw7Snhnsmy0CX8NlG1W1NkkL00W5YkQqNRsKvvaNEL8gx3 t763MbBUpZjtOYjOnKRg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rcoSg-00000001SZ6-1qc8; Wed, 21 Feb 2024 15:24:42 +0000 Received: from mta-65-225.siemens.flowmailer.net ([185.136.65.225]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rcoSa-00000001SSV-3Zxm for linux-arm-kernel@lists.infradead.org; Wed, 21 Feb 2024 15:24:39 +0000 Received: by mta-65-225.siemens.flowmailer.net with ESMTPSA id 20240221152432415c4df134585725e4 for ; Wed, 21 Feb 2024 16:24:32 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=diogo.ivo@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=ejzWMYY30WdJgyz3tcmDkJ2YklCBWqJN9zZnZI3iYyk=; b=ikvTe2UfEQ0FaHmOYRhe/jw2CNATKijeT8+bvXkC7/rJbPWbGUELvXSItHR3x1p5ipxyz4 c8zD/KvCKGWmzrU5cUaHVGycrSkWiOxeo0tz3RpEGsb3JPIqdtEnYly9kNhF8H27H8P08Z2m MTz+4W0OEENQXiju8/aTrEYadhGas=; From: Diogo Ivo To: danishanwar@ti.com, rogerq@kernel.org, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, andrew@lunn.ch, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org Cc: Diogo Ivo , jan.kiszka@siemens.com Subject: [PATCH net-next v3 06/10] net: ti: icssg-prueth: Adjust IPG configuration for SR1.0 Date: Wed, 21 Feb 2024 15:24:12 +0000 Message-ID: <20240221152421.112324-7-diogo.ivo@siemens.com> In-Reply-To: <20240221152421.112324-1-diogo.ivo@siemens.com> References: <20240221152421.112324-1-diogo.ivo@siemens.com> MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1320519:519-21489:flowmailer X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240221_072437_525356_CB50A967 X-CRM114-Status: GOOD ( 10.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Correctly adjust the IPG based on the Silicon Revision. Based on the work of Roger Quadros, Vignesh Raghavendra and Grygorii Strashko in TI's 5.10 SDK [1]. [1]: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/?h=ti-linux-5.10.y Co-developed-by: Jan Kiszka Signed-off-by: Jan Kiszka Signed-off-by: Diogo Ivo Reviewed-by: Roger Quadros --- drivers/net/ethernet/ti/icssg/icssg_config.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/ti/icssg/icssg_config.c b/drivers/net/ethernet/ti/icssg/icssg_config.c index 99de8a40ed60..15f2235bf90f 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_config.c +++ b/drivers/net/ethernet/ti/icssg/icssg_config.c @@ -20,6 +20,8 @@ /* IPG is in core_clk cycles */ #define MII_RT_TX_IPG_100M 0x17 #define MII_RT_TX_IPG_1G 0xb +#define MII_RT_TX_IPG_100M_SR1 0x166 +#define MII_RT_TX_IPG_1G_SR1 0x1a #define ICSSG_QUEUES_MAX 64 #define ICSSG_QUEUE_OFFSET 0xd00 @@ -202,23 +204,29 @@ void icssg_config_ipg(struct prueth_emac *emac) { struct prueth *prueth = emac->prueth; int slice = prueth_emac_slice(emac); + u32 ipg; switch (emac->speed) { case SPEED_1000: - icssg_mii_update_ipg(prueth->mii_rt, slice, MII_RT_TX_IPG_1G); + ipg = emac->is_sr1 ? MII_RT_TX_IPG_1G_SR1 : MII_RT_TX_IPG_1G; break; case SPEED_100: - icssg_mii_update_ipg(prueth->mii_rt, slice, MII_RT_TX_IPG_100M); + ipg = emac->is_sr1 ? MII_RT_TX_IPG_100M_SR1 : MII_RT_TX_IPG_100M; break; case SPEED_10: + /* Firmware hardcodes IPG for SR1.0 */ + if (emac->is_sr1) + return; /* IPG for 10M is same as 100M */ - icssg_mii_update_ipg(prueth->mii_rt, slice, MII_RT_TX_IPG_100M); + ipg = MII_RT_TX_IPG_100M; break; default: /* Other links speeds not supported */ netdev_err(emac->ndev, "Unsupported link speed\n"); return; } + + icssg_mii_update_ipg(prueth->mii_rt, slice, ipg); } static void emac_r30_cmd_init(struct prueth_emac *emac)