From patchwork Fri Nov 24 05:08:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sneh Shah X-Patchwork-Id: 13466979 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="PL2QT++9" Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5FEAFD71; Thu, 23 Nov 2023 21:09:08 -0800 (PST) Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3AO4Ha0q013621; Fri, 24 Nov 2023 05:08:34 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id; s=qcppdkim1; bh=izkBQImg/TjzbwWFvoo0zSUxS/DMKyakfBpX5vZNJZY=; b=PL2QT++9iBWr/zas7GtBMaI6RaJsAH7ixLByYMkdZPcjhcQL/Df6sdg5pUQJgI6Pi1Cz u8xlh6OXwyOkNLHfef/oWKjFoGbywdFlccoT0MBS2RDYwaAr1REyJvP6+y5Dnzaj8hhi Gl6INKa6CZuZO+BlCfmONwhuKXTBXB1RCcCIXl8D5x+WVoI2A0Qqgo59jGOME/v1XDPk 3XMyPQtHy6GChurvqX4GCfTzbfOeuCKn2P9PPpVtSfmtGDtY8oWU5mu4uCMZV9sLf7AD cR/3OTP0cVl3GiTlwtP90kJteNRBdsrWLYuqdYircZom9NlfnCaSdubip3J6LHm3yXmz Fw== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3uhwmearxq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 Nov 2023 05:08:34 +0000 Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 3AO58U1W008057; Fri, 24 Nov 2023 05:08:30 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 3uepbkmrdf-1; Fri, 24 Nov 2023 05:08:30 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3AO58T5O008052; Fri, 24 Nov 2023 05:08:30 GMT Received: from hu-maiyas-hyd.qualcomm.com (hu-snehshah-hyd.qualcomm.com [10.147.246.35]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 3AO58Tke008050; Fri, 24 Nov 2023 05:08:29 +0000 Received: by hu-maiyas-hyd.qualcomm.com (Postfix, from userid 2319345) id E29925299C4; Fri, 24 Nov 2023 10:38:28 +0530 (+0530) From: Sneh Shah To: Vinod Koul , Bhupesh Sharma , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sneh Shah , kernel@quicinc.com, Andrew Halaney Subject: [PATCH net] net: stmmac: update Rx clk divider for 10M SGMII Date: Fri, 24 Nov 2023 10:38:18 +0530 Message-Id: <20231124050818.1221-1-quic_snehshah@quicinc.com> X-Mailer: git-send-email 2.17.1 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: YJ2KeQV5hKZDAsVYZTG0luH-FmCxpuMW X-Proofpoint-ORIG-GUID: YJ2KeQV5hKZDAsVYZTG0luH-FmCxpuMW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-23_15,2023-11-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 clxscore=1011 priorityscore=1501 malwarescore=0 mlxlogscore=701 lowpriorityscore=0 impostorscore=0 mlxscore=0 adultscore=0 bulkscore=0 spamscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311240038 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: SGMII 10MBPS mode needs RX clock divider to avoid drops in Rx. Update configure SGMII function with rx clk divider programming. Signed-off-by: Sneh Shah Acked-by: Vinod Koul --- drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index d3bf42d0fceb..f8c42e91a624 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -34,6 +34,7 @@ #define RGMII_CONFIG_LOOPBACK_EN BIT(2) #define RGMII_CONFIG_PROG_SWAP BIT(1) #define RGMII_CONFIG_DDR_MODE BIT(0) +#define RGMII_CONFIG_SGMII_CLK_DVDR GENMASK(18, 10) /* SDCC_HC_REG_DLL_CONFIG fields */ #define SDCC_DLL_CONFIG_DLL_RST BIT(30) @@ -617,6 +618,8 @@ static int ethqos_configure_sgmii(struct qcom_ethqos *ethqos) case SPEED_10: val |= ETHQOS_MAC_CTRL_PORT_SEL; val &= ~ETHQOS_MAC_CTRL_SPEED_MODE; + rgmii_updatel(ethqos, RGMII_CONFIG_SGMII_CLK_DVDR, BIT(10) | + GENMASK(15, 14), RGMII_IO_MACRO_CONFIG); break; }