From patchwork Wed Nov 8 11:34:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Luo X-Patchwork-Id: 13449857 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 E502A16400 for ; Wed, 8 Nov 2023 11:35:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="eYGDf/zp" Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 834CB18E; Wed, 8 Nov 2023 03:35:20 -0800 (PST) Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3A8BWFuu015415; Wed, 8 Nov 2023 11:35:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=GrB9/H/l5aOxGCY1NFujRRp90fJh11KaZT064mhhhRk=; b=eYGDf/zpyfGTQ1yx4Ahnpsd0dTl6hPI/Fsy5doP+wlbOa50mKK4mOa7PyJSV8/h9C8Fy J/BSvl/YJmzptG08X8IC4s06NCPhWuteWMIALwRiDBAMgoKG82E7Z1YvvXoaQD+OyLfJ G6Ma5hpPVzRsjIbFFODRzRP8ADviapb/EUDzI7yb+XP4YRDFi8yXPsU4Y4uqkSOADkkT AyyKvBxJ5/sGJXqx3pSeQI/zEQ+/9zde2OWbdCVN2qwtxx2rrYRW59Z9+ZfggTzcSZnE vfeNPy7yYRueDePtuWbjAlDl3DwpLWz7mikyxKFF1OrJ6K4tLvWHXhWidFOtBTtyKkaN 3g== Received: from nasanppmta04.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3u7w33sf1u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 08 Nov 2023 11:35:11 +0000 Received: from nasanex01c.na.qualcomm.com (nasanex01c.na.qualcomm.com [10.45.79.139]) by NASANPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3A8BZAYj032330 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 8 Nov 2023 11:35:10 GMT Received: from akronite-sh-dev02.qualcomm.com (10.80.80.8) by nasanex01c.na.qualcomm.com (10.45.79.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.39; Wed, 8 Nov 2023 03:35:07 -0800 From: Luo Jie To: , , , , , , CC: , Subject: [PATCH v2 3/3] net: phy: qca8084: add qca8084_link_change_notify Date: Wed, 8 Nov 2023 19:34:45 +0800 Message-ID: <20231108113445.24825-4-quic_luoj@quicinc.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231108113445.24825-1-quic_luoj@quicinc.com> References: <20231108113445.24825-1-quic_luoj@quicinc.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01c.na.qualcomm.com (10.45.79.139) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: zHjVdxIiVJF4zJw9oCauT2heV9lQolGG X-Proofpoint-GUID: zHjVdxIiVJF4zJw9oCauT2heV9lQolGG 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=2023-11-08_01,2023-11-08_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 suspectscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 bulkscore=0 spamscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311080097 X-Patchwork-Delegate: kuba@kernel.org When the link is changed, qca8084 needs to do the fifo reset and adjust the IPG level for the qusgmii link speed 1000M. Signed-off-by: Luo Jie --- drivers/net/phy/at803x.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c index 6bea6e31caaa..4906775770b3 100644 --- a/drivers/net/phy/at803x.c +++ b/drivers/net/phy/at803x.c @@ -289,6 +289,13 @@ #define QCA8084_MSE_THRESHOLD 0x800a #define QCA8084_MSE_THRESHOLD_2P5G_VAL 0x51c6 +#define QCA8084_FIFO_CONTROL 0x19 +#define QCA8084_FIFO_MAC_2_PHY BIT(1) +#define QCA8084_FIFO_PHY_2_MAC BIT(0) + +#define QCA8084_MMD7_IPG_OP 0x901d +#define QCA8084_IPG_10_TO_11_EN BIT(0) + MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver"); MODULE_AUTHOR("Matus Ujhelyi"); MODULE_LICENSE("GPL"); @@ -2103,6 +2110,35 @@ static int qca8084_config_init(struct phy_device *phydev) QCA8084_MSE_THRESHOLD, QCA8084_MSE_THRESHOLD_2P5G_VAL); } +static void qca8084_link_change_notify(struct phy_device *phydev) +{ + int ret; + + ret = phy_modify(phydev, QCA8084_FIFO_CONTROL, + QCA8084_FIFO_MAC_2_PHY | QCA8084_FIFO_PHY_2_MAC, + 0); + if (ret) + return; + + /* If the PHY works on PHY_INTERFACE_MODE_QUSGMII mode, the fifo needs to + * be kept as reset state in link down status. + */ + if (phydev->interface != PHY_INTERFACE_MODE_QUSGMII || phydev->link) { + msleep(50); + ret = phy_modify(phydev, QCA8084_FIFO_CONTROL, + QCA8084_FIFO_MAC_2_PHY | QCA8084_FIFO_PHY_2_MAC, + QCA8084_FIFO_MAC_2_PHY | QCA8084_FIFO_PHY_2_MAC); + if (ret) + return; + } + + /* Enable IPG 10 to 11 tuning on link speed 1000M of QUSGMII mode. */ + if (phydev->interface == PHY_INTERFACE_MODE_QUSGMII) + phy_modify_mmd(phydev, MDIO_MMD_AN, QCA8084_MMD7_IPG_OP, + QCA8084_IPG_10_TO_11_EN, + phydev->speed == SPEED_1000 ? QCA8084_IPG_10_TO_11_EN : 0); +} + static struct phy_driver at803x_driver[] = { { /* Qualcomm Atheros AR8035 */ @@ -2301,6 +2337,7 @@ static struct phy_driver at803x_driver[] = { .cable_test_start = qca808x_cable_test_start, .cable_test_get_status = qca808x_cable_test_get_status, .config_init = qca8084_config_init, + .link_change_notify = qca8084_link_change_notify, }, }; module_phy_driver(at803x_driver);