From patchwork Wed Mar 20 14:42:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 13597923 X-Patchwork-Delegate: kuba@kernel.org Received: from mta-64-226.siemens.flowmailer.net (mta-64-226.siemens.flowmailer.net [185.136.64.226]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0DA904D9E6 for ; Wed, 20 Mar 2024 14:42:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.64.226 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710945778; cv=none; b=K0Wy6eRFCCdBgPiTGskhnk2FYPjpSEl95IYzhHOe0zPRVEqfARTsH1mZVs7AOqVAnv+NsWysHzyBt+kogx+ZM58MbO7IEwAIlu8JxeyPEuzfmK32Z+6pdIWTgdcvIvzdwAFeq03mN+dk1w/eHEbhWgYW/BMyjkAMhyOOZvX+4Lk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710945778; c=relaxed/simple; bh=2GBBminJ15j4gdQ6lviuIzg3GH+xtjdJE7NnGYqf5+I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DmJHPngZZ6YUzqsfq3qMvShMU2B0HDBzN7otFKEjZo18tBcoikCNhGvFhBafxTLmvxjYTZX2ZK1SVG33fTJkldEISeIoV/KZyMkR0Qg09aFmbXHGB9eKvtTt2Bs/F30AT1E2UEK5fzdDU1cvKjqtqM7FuVJUb3NZYoA74Jgqo58= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com; dkim=pass (1024-bit key) header.d=siemens.com header.i=diogo.ivo@siemens.com header.b=NPMJSDFJ; arc=none smtp.client-ip=185.136.64.226 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=siemens.com header.i=diogo.ivo@siemens.com header.b="NPMJSDFJ" Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 202403201442561abde3fe8fa4f8ad67 for ; Wed, 20 Mar 2024 15:42:56 +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=3VmQm0kIt8wV3QA830woUaB7ryp/dIwdRhZGmq2NEEA=; b=NPMJSDFJWv5kRvN97GEUGQOhqHn3mBuUZR18VN1LvTEVJvETrVRaeE6AtJExtAW8nEheV1 BTbV8dxkwImsb9Up84Uai4RFM4cUSLJnu9BKZeG+/+QMRsWTf/QAApvM5lERSKOdzRUB3LaB IM8LVst1n5hSZ6r/UARBFWhoXcdjY=; 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 v5 06/10] net: ti: icssg-prueth: Adjust IPG configuration for SR1.0 Date: Wed, 20 Mar 2024 14:42:28 +0000 Message-ID: <20240320144234.313672-7-diogo.ivo@siemens.com> In-Reply-To: <20240320144234.313672-1-diogo.ivo@siemens.com> References: <20240320144234.313672-1-diogo.ivo@siemens.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1320519:519-21489:flowmailer X-Patchwork-Delegate: kuba@kernel.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 Reviewed-by: MD Danish Anwar --- Changes in v5: - Added Reviewed-by tag from Danish Changes in v4: - Add Reviewed-by from Roger 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)