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Received: from nwd2mta2.analog.com (137.71.25.57) by BL2NAM02FT057.mail.protection.outlook.com (10.152.77.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:23:58 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBNwjH004150 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:23:58 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:23:58 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 01/14] net: phy: adin: add support for Analog Devices PHYs Date: Mon, 12 Aug 2019 14:23:37 +0300 Message-ID: <20190812112350.15242-2-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(396003)(346002)(136003)(376002)(39860400002)(2980300002)(199004)(189003)(2201001)(70586007)(966005)(1076003)(70206006)(86362001)(50226002)(5660300002)(6306002)(50466002)(8936002)(48376002)(8676002)(4326008)(246002)(126002)(476003)(446003)(336012)(426003)(486006)(44832011)(2616005)(11346002)(107886003)(2870700001)(478600001)(316002)(7636002)(54906003)(106002)(110136005)(2906002)(305945005)(26005)(47776003)(186003)(76176011)(51416003)(7696005)(6666004)(356004)(36756003); DIR:OUT; SFP:1101; SCL:1; SRVR:DM6PR03MB3500; H:nwd2mta2.analog.com; FPR:; SPF:Pass; LANG:en; PTR:nwd2mail11.analog.com; A:1; MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 36f80977-85aa-430f-3ac5-08d71f1791f2 X-Microsoft-Antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(4709080)(1401327)(2017052603328); SRVR:DM6PR03MB3500; X-MS-TrafficTypeDiagnostic: DM6PR03MB3500: X-MS-Exchange-PUrlCount: 3 X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: W2jScVC9JhNqcLiiyO3FLBQVWYf+UD5u4AF3UDvDGaof0gmzTZLNTTirU9o/y0l4XAEucJSQF/juRa81OAnmP2fWnHJNp1lyHjEJYphLUoW7Wop+AgprQ7XU1teQvfsX09DCSsmTVntv9PbXG7R3hzBr35tO9L1M0wfeju09vd1iIj6G63Ez+GMPXxyst4BnYFt3pT7M1UN9ITkV5B4lqbqn4s+j7CmeV4bMRM5iYCrEbmf0rgtR0Hgxs8B4dJ8n5/PDbJsEO7QTPkjJ84Y/jgFjhW/brKZLXXyJSX9stcFkZ+ngIlppBaOzNS0iFHSZKLe80DUdKRF4jwOzOO2vigeUNyrIwUVmIzNp4cqQeMTwWlQNmauFvqfnCSMiDEp8DvJz0SqGAYEr8HAsMYWWqPbCyKy8XfMFSl9yw75UgIw= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:23:58.8403 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 36f80977-85aa-430f-3ac5-08d71f1791f2 X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR03MB3500 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This change adds support for Analog Devices Industrial Ethernet PHYs. Particularly the PHYs this driver adds support for: * ADIN1200 - Robust, Industrial, Low Power 10/100 Ethernet PHY * ADIN1300 - Robust, Industrial, Low Latency 10/100/1000 Gigabit Ethernet PHY The 2 chips are register compatible with one another. The main difference being that ADIN1200 doesn't operate in gigabit mode. The chips can be operated by the Generic PHY driver as well via the standard IEEE PHY registers (0x0000 - 0x000F) which are supported by the kernel as well. This assumes that configuration of the PHY has been done completely in HW, according to spec. Configuration can also be done via registers, which will be supported by this driver. Datasheets: https://www.analog.com/media/en/technical-documentation/data-sheets/ADIN1300.pdf https://www.analog.com/media/en/technical-documentation/data-sheets/ADIN1200.pdf Reviewed-by: Andrew Lunn Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- MAINTAINERS | 7 ++++++ drivers/net/phy/Kconfig | 9 ++++++++ drivers/net/phy/Makefile | 1 + drivers/net/phy/adin.c | 49 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 66 insertions(+) create mode 100644 drivers/net/phy/adin.c diff --git a/MAINTAINERS b/MAINTAINERS index e352550a6895..e8aa8a667864 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -938,6 +938,13 @@ S: Supported F: drivers/mux/adgs1408.c F: Documentation/devicetree/bindings/mux/adi,adgs1408.txt +ANALOG DEVICES INC ADIN DRIVER +M: Alexandru Ardelean +L: netdev@vger.kernel.org +W: http://ez.analog.com/community/linux-device-drivers +S: Supported +F: drivers/net/phy/adin.c + ANALOG DEVICES INC ADIS DRIVER LIBRARY M: Alexandru Ardelean S: Supported diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 48ca213c0ada..03be30cde552 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -257,6 +257,15 @@ config SFP depends on HWMON || HWMON=n select MDIO_I2C +config ADIN_PHY + tristate "Analog Devices Industrial Ethernet PHYs" + help + Adds support for the Analog Devices Industrial Ethernet PHYs. + Currently supports the: + - ADIN1200 - Robust,Industrial, Low Power 10/100 Ethernet PHY + - ADIN1300 - Robust,Industrial, Low Latency 10/100/1000 Gigabit + Ethernet PHY + config AMD_PHY tristate "AMD PHYs" ---help--- diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index ba07c27e4208..a03437e091f3 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -47,6 +47,7 @@ obj-$(CONFIG_SFP) += sfp.o sfp-obj-$(CONFIG_SFP) += sfp-bus.o obj-y += $(sfp-obj-y) $(sfp-obj-m) +obj-$(CONFIG_ADIN_PHY) += adin.o obj-$(CONFIG_AMD_PHY) += amd.o aquantia-objs += aquantia_main.o ifdef CONFIG_HWMON diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c new file mode 100644 index 000000000000..6d7af4743957 --- /dev/null +++ b/drivers/net/phy/adin.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0+ +/** + * Driver for Analog Devices Industrial Ethernet PHYs + * + * Copyright 2019 Analog Devices Inc. + */ +#include +#include +#include +#include +#include +#include + +#define PHY_ID_ADIN1200 0x0283bc20 +#define PHY_ID_ADIN1300 0x0283bc30 + +static int adin_config_init(struct phy_device *phydev) +{ + return genphy_config_init(phydev); +} + +static struct phy_driver adin_driver[] = { + { + PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200), + .name = "ADIN1200", + .config_init = adin_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + }, + { + PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300), + .name = "ADIN1300", + .config_init = adin_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + }, +}; + +module_phy_driver(adin_driver); + +static struct mdio_device_id __maybe_unused adin_tbl[] = { + { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200) }, + { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300) }, + { } +}; + +MODULE_DEVICE_TABLE(mdio, adin_tbl); +MODULE_DESCRIPTION("Analog Devices Industrial Ethernet PHY driver"); +MODULE_LICENSE("GPL"); From patchwork Mon Aug 12 11:23:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 1145647 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; 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Mon, 12 Aug 2019 11:24:02 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.57 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.57; helo=nwd2mta2.analog.com; Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT006.mail.protection.outlook.com (10.152.74.104) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:01 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBO0AM004156 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:00 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:00 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 02/14] net: phy: adin: hook genphy_{suspend, resume} into the driver Date: Mon, 12 Aug 2019 14:23:38 +0300 Message-ID: <20190812112350.15242-3-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB2431 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The chip supports standard suspend/resume via BMCR reg. Hook these functions into the `adin` driver. Reviewed-by: Andrew Lunn Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index 6d7af4743957..fc0148ba4b94 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -26,6 +26,8 @@ static struct phy_driver adin_driver[] = { .config_init = adin_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, + .resume = genphy_resume, + .suspend = genphy_suspend, }, { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300), @@ -33,6 +35,8 @@ static struct phy_driver adin_driver[] = { .config_init = adin_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, + .resume = genphy_resume, + .suspend = genphy_suspend, }, }; From patchwork Mon Aug 12 11:23:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 1145646 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; 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Mon, 12 Aug 2019 11:24:05 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.57 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.57; helo=nwd2mta2.analog.com; Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT046.mail.protection.outlook.com (10.152.74.232) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:04 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBO2AY004159 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:02 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:02 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 03/14] net: phy: adin: add support for interrupts Date: Mon, 12 Aug 2019 14:23:39 +0300 Message-ID: <20190812112350.15242-4-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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Reviewed-by: Andrew Lunn Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index fc0148ba4b94..f4ee611e33df 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -14,11 +14,43 @@ #define PHY_ID_ADIN1200 0x0283bc20 #define PHY_ID_ADIN1300 0x0283bc30 +#define ADIN1300_INT_MASK_REG 0x0018 +#define ADIN1300_INT_MDIO_SYNC_EN BIT(9) +#define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) +#define ADIN1300_INT_ANEG_PAGE_RX_EN BIT(6) +#define ADIN1300_INT_IDLE_ERR_CNT_EN BIT(5) +#define ADIN1300_INT_MAC_FIFO_OU_EN BIT(4) +#define ADIN1300_INT_RX_STAT_CHNG_EN BIT(3) +#define ADIN1300_INT_LINK_STAT_CHNG_EN BIT(2) +#define ADIN1300_INT_SPEED_CHNG_EN BIT(1) +#define ADIN1300_INT_HW_IRQ_EN BIT(0) +#define ADIN1300_INT_MASK_EN \ + (ADIN1300_INT_LINK_STAT_CHNG_EN | ADIN1300_INT_HW_IRQ_EN) +#define ADIN1300_INT_STATUS_REG 0x0019 + static int adin_config_init(struct phy_device *phydev) { return genphy_config_init(phydev); } +static int adin_phy_ack_intr(struct phy_device *phydev) +{ + /* Clear pending interrupts */ + int rc = phy_read(phydev, ADIN1300_INT_STATUS_REG); + + return rc < 0 ? rc : 0; +} + +static int adin_phy_config_intr(struct phy_device *phydev) +{ + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) + return phy_set_bits(phydev, ADIN1300_INT_MASK_REG, + ADIN1300_INT_MASK_EN); + + return phy_clear_bits(phydev, ADIN1300_INT_MASK_REG, + ADIN1300_INT_MASK_EN); +} + static struct phy_driver adin_driver[] = { { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200), @@ -26,6 +58,8 @@ static struct phy_driver adin_driver[] = { .config_init = adin_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, + .ack_interrupt = adin_phy_ack_intr, + .config_intr = adin_phy_config_intr, .resume = genphy_resume, .suspend = genphy_suspend, }, @@ -35,6 +69,8 @@ static struct phy_driver adin_driver[] = { .config_init = adin_config_init, .config_aneg = genphy_config_aneg, .read_status = genphy_read_status, + .ack_interrupt = adin_phy_ack_intr, + .config_intr = adin_phy_config_intr, .resume = genphy_resume, .suspend = genphy_suspend, }, From patchwork Mon Aug 12 11:23:40 2019 Content-Type: text/plain; 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Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT022.mail.protection.outlook.com (10.152.75.185) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:05 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBO4rB004163 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:04 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:04 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 04/14] net: phy: adin: add {write,read}_mmd hooks Date: Mon, 12 Aug 2019 14:23:40 +0300 Message-ID: <20190812112350.15242-5-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: t7657DqkMjmy0JHB130OT3ioLRP7O7uMbKTf9e0l87GGSMHSAiayPDhXfb/DWCsFPh+xNa3V44lM7TgqDiviefCu2NRQP7E7XDYx+RwPtoU74QonZ3S9JL/EFR8nxGGjp7H2gW4OOWsBD44EyGijIGsDXNP5IrS7NekI+Rb85Qp2w6mt96JsMExN4k3phD6Yj6aBB7Zw8gQLqJlpdrH/rXfTVVVkFG4yEvu/HtIiLjs6oIxQsBRPzp56uJ/yjDRutJNn5cM1LGN3Nn7G41vrN8n97vbr3rAhVdPPBWplQ8w/GEDXwdOA09g4zLHZxveWOwaSe5rvS1KMiCFajzdjSUTCPVhYW7KuPBezFKE0ic1kJT/Nd8C4W+H8wwu7kdBIReYkCmSBj4Rhb95bCy4Gec61KsMwsFRXRn0Hy74nwgg= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:05.4960 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e77f7f14-3896-4e96-c43d-08d71f17962a X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR03MB3517 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Both ADIN1200 & ADIN1300 support Clause 45 access for some registers. The Extended Management Interface (EMI) registers are accessible via both Clause 45 (at register MDIO_MMD_VEND1) and using Clause 22. The Clause 22 access for MMD regs differs from the standard one defined by 802.3. The ADIN PHYs use registers ExtRegPtr (0x0010) and ExtRegData (0x0011) to access Clause 45 & EMI registers. The indirect access is done via the following mechanism (for both R/W): 1. Write the address of the register in the ExtRegPtr 2. Read/write the value of the register via reg ExtRegData This mechanism is needed to manage configuration of chip settings and to access EEE registers via Clause 22. Since Clause 45 access will likely never be used, it is not implemented via this hook. Signed-off-by: Alexandru Ardelean Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index f4ee611e33df..efbb732f0398 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -14,6 +14,9 @@ #define PHY_ID_ADIN1200 0x0283bc20 #define PHY_ID_ADIN1300 0x0283bc30 +#define ADIN1300_MII_EXT_REG_PTR 0x0010 +#define ADIN1300_MII_EXT_REG_DATA 0x0011 + #define ADIN1300_INT_MASK_REG 0x0018 #define ADIN1300_INT_MDIO_SYNC_EN BIT(9) #define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) @@ -51,6 +54,33 @@ static int adin_phy_config_intr(struct phy_device *phydev) ADIN1300_INT_MASK_EN); } +static int adin_read_mmd(struct phy_device *phydev, int devad, u16 regnum) +{ + struct mii_bus *bus = phydev->mdio.bus; + int phy_addr = phydev->mdio.addr; + int err; + + err = __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_PTR, regnum); + if (err) + return err; + + return __mdiobus_read(bus, phy_addr, ADIN1300_MII_EXT_REG_DATA); +} + +static int adin_write_mmd(struct phy_device *phydev, int devad, u16 regnum, + u16 val) +{ + struct mii_bus *bus = phydev->mdio.bus; + int phy_addr = phydev->mdio.addr; + int err; + + err = __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_PTR, regnum); + if (err) + return err; + + return __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_DATA, val); +} + static struct phy_driver adin_driver[] = { { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200), @@ -62,6 +92,8 @@ static struct phy_driver adin_driver[] = { .config_intr = adin_phy_config_intr, .resume = genphy_resume, .suspend = genphy_suspend, + .read_mmd = adin_read_mmd, + .write_mmd = adin_write_mmd, }, { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300), @@ -73,6 +105,8 @@ static struct phy_driver adin_driver[] = { .config_intr = adin_phy_config_intr, .resume = genphy_resume, .suspend = genphy_suspend, + .read_mmd = adin_read_mmd, + .write_mmd = adin_write_mmd, }, }; From patchwork Mon Aug 12 11:23:41 2019 Content-Type: text/plain; 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Received: from nwd2mta2.analog.com (137.71.25.57) by BL2NAM02FT037.mail.protection.outlook.com (10.152.77.11) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:07 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBO6Yc004174 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:06 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:06 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 05/14] net: phy: adin: configure RGMII/RMII/MII modes on config Date: Mon, 12 Aug 2019 14:23:41 +0300 Message-ID: <20190812112350.15242-6-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: dRlaHn8y/e69jiOqRxQjs5zfWjAtBVfJuxOn2uCZRt3CuNy4lu8SUrs3QLJgRPtNzhKxw9/wvqFcthUAVw6eSEvRgarbH2qXWq8QFVmVNWPGgkTT5edBKyMSgnbAZo6oupzRW9Kv3FdKrx3q1p33NkVMfiRighzpyWG82Xw1g/BKbTtmHMNda4TkObPFmKj3gcD2O2afETMqWkn1lLw0KMqiDJnw+Oc4MJC8NPwrUT7NlIs0iCyG+txNGbNfgbl1Z6RDuJLg5DYCTZ0DhUXCTiCmBZhXg9+j6UCdv1MnWSRYTQc3DQIX0U7xDKf2i0csV4+6Z9w2W7T9CkmLQRqfDnBHelpRHeWGym7nmvNk9hZ/rf1A1as9DzHjS7I9sLfMvlsoSGYvbabcynzItTdSHoV+/rr8iIii954Dushx6Es= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:07.0608 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3434d881-dcc9-4469-dfe8-08d71f1796ee X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR03MB4502 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The ADIN1300 chip supports RGMII, RMII & MII modes. Default (if unconfigured) is RGMII. This change adds support for configuring these modes via the device registers. For RGMII with internal delays (modes RGMII_ID,RGMII_TXID, RGMII_RXID), the default delay is 2 ns. This can be configurable and will be done in a subsequent change. Reviewed-by: Andrew Lunn Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 79 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 78 insertions(+), 1 deletion(-) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index efbb732f0398..badca6881c6c 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -31,9 +31,86 @@ (ADIN1300_INT_LINK_STAT_CHNG_EN | ADIN1300_INT_HW_IRQ_EN) #define ADIN1300_INT_STATUS_REG 0x0019 +#define ADIN1300_GE_RGMII_CFG_REG 0xff23 +#define ADIN1300_GE_RGMII_RXID_EN BIT(2) +#define ADIN1300_GE_RGMII_TXID_EN BIT(1) +#define ADIN1300_GE_RGMII_EN BIT(0) + +#define ADIN1300_GE_RMII_CFG_REG 0xff24 +#define ADIN1300_GE_RMII_EN BIT(0) + +static int adin_config_rgmii_mode(struct phy_device *phydev) +{ + int reg; + + if (!phy_interface_is_rgmii(phydev)) + return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, + ADIN1300_GE_RGMII_CFG_REG, + ADIN1300_GE_RGMII_EN); + + reg = phy_read_mmd(phydev, MDIO_MMD_VEND1, ADIN1300_GE_RGMII_CFG_REG); + if (reg < 0) + return reg; + + reg |= ADIN1300_GE_RGMII_EN; + + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || + phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { + reg |= ADIN1300_GE_RGMII_RXID_EN; + } else { + reg &= ~ADIN1300_GE_RGMII_RXID_EN; + } + + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || + phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { + reg |= ADIN1300_GE_RGMII_TXID_EN; + } else { + reg &= ~ADIN1300_GE_RGMII_TXID_EN; + } + + return phy_write_mmd(phydev, MDIO_MMD_VEND1, + ADIN1300_GE_RGMII_CFG_REG, reg); +} + +static int adin_config_rmii_mode(struct phy_device *phydev) +{ + int reg; + + if (phydev->interface != PHY_INTERFACE_MODE_RMII) + return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, + ADIN1300_GE_RMII_CFG_REG, + ADIN1300_GE_RMII_EN); + + reg = phy_read_mmd(phydev, MDIO_MMD_VEND1, ADIN1300_GE_RMII_CFG_REG); + if (reg < 0) + return reg; + + reg |= ADIN1300_GE_RMII_EN; + + return phy_write_mmd(phydev, MDIO_MMD_VEND1, + ADIN1300_GE_RMII_CFG_REG, reg); +} + static int adin_config_init(struct phy_device *phydev) { - return genphy_config_init(phydev); + int rc; + + rc = genphy_config_init(phydev); + if (rc < 0) + return rc; + + rc = adin_config_rgmii_mode(phydev); + if (rc < 0) + return rc; + + rc = adin_config_rmii_mode(phydev); + if (rc < 0) + return rc; + + phydev_dbg(phydev, "PHY is using mode '%s'\n", + phy_modes(phydev->interface)); + + return 0; } static int adin_phy_ack_intr(struct phy_device *phydev) From patchwork Mon Aug 12 11:23:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 1145637 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; 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Mon, 12 Aug 2019 11:24:09 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.57 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.57; helo=nwd2mta2.analog.com; Received: from nwd2mta2.analog.com (137.71.25.57) by BL2NAM02FT034.mail.protection.outlook.com (10.152.77.161) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:09 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBO8Jq004192 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:08 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:08 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 06/14] net: phy: adin: make RGMII internal delays configurable Date: Mon, 12 Aug 2019 14:23:42 +0300 Message-ID: <20190812112350.15242-7-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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This change adds support for configuring them via device-tree (or ACPI). Reviewed-by: Andrew Lunn Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 82 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index badca6881c6c..c882fcd9ada5 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -5,11 +5,13 @@ * Copyright 2019 Analog Devices Inc. */ #include +#include #include #include #include #include #include +#include #define PHY_ID_ADIN1200 0x0283bc20 #define PHY_ID_ADIN1300 0x0283bc30 @@ -32,15 +34,83 @@ #define ADIN1300_INT_STATUS_REG 0x0019 #define ADIN1300_GE_RGMII_CFG_REG 0xff23 +#define ADIN1300_GE_RGMII_RX_MSK GENMASK(8, 6) +#define ADIN1300_GE_RGMII_RX_SEL(x) \ + FIELD_PREP(ADIN1300_GE_RGMII_RX_MSK, x) +#define ADIN1300_GE_RGMII_GTX_MSK GENMASK(5, 3) +#define ADIN1300_GE_RGMII_GTX_SEL(x) \ + FIELD_PREP(ADIN1300_GE_RGMII_GTX_MSK, x) #define ADIN1300_GE_RGMII_RXID_EN BIT(2) #define ADIN1300_GE_RGMII_TXID_EN BIT(1) #define ADIN1300_GE_RGMII_EN BIT(0) +/* RGMII internal delay settings for rx and tx for ADIN1300 */ +#define ADIN1300_RGMII_1_60_NS 0x0001 +#define ADIN1300_RGMII_1_80_NS 0x0002 +#define ADIN1300_RGMII_2_00_NS 0x0000 +#define ADIN1300_RGMII_2_20_NS 0x0006 +#define ADIN1300_RGMII_2_40_NS 0x0007 + #define ADIN1300_GE_RMII_CFG_REG 0xff24 #define ADIN1300_GE_RMII_EN BIT(0) +/** + * struct adin_cfg_reg_map - map a config value to aregister value + * @cfg value in device configuration + * @reg value in the register + */ +struct adin_cfg_reg_map { + int cfg; + int reg; +}; + +static const struct adin_cfg_reg_map adin_rgmii_delays[] = { + { 1600, ADIN1300_RGMII_1_60_NS }, + { 1800, ADIN1300_RGMII_1_80_NS }, + { 2000, ADIN1300_RGMII_2_00_NS }, + { 2200, ADIN1300_RGMII_2_20_NS }, + { 2400, ADIN1300_RGMII_2_40_NS }, + { }, +}; + +static int adin_lookup_reg_value(const struct adin_cfg_reg_map *tbl, int cfg) +{ + size_t i; + + for (i = 0; tbl[i].cfg; i++) { + if (tbl[i].cfg == cfg) + return tbl[i].reg; + } + + return -EINVAL; +} + +static u32 adin_get_reg_value(struct phy_device *phydev, + const char *prop_name, + const struct adin_cfg_reg_map *tbl, + u32 dflt) +{ + struct device *dev = &phydev->mdio.dev; + u32 val; + int rc; + + if (device_property_read_u32(dev, prop_name, &val)) + return dflt; + + rc = adin_lookup_reg_value(tbl, val); + if (rc < 0) { + phydev_warn(phydev, + "Unsupported value %u for %s using default (%u)\n", + val, prop_name, dflt); + return dflt; + } + + return rc; +} + static int adin_config_rgmii_mode(struct phy_device *phydev) { + u32 val; int reg; if (!phy_interface_is_rgmii(phydev)) @@ -57,6 +127,12 @@ static int adin_config_rgmii_mode(struct phy_device *phydev) if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) { reg |= ADIN1300_GE_RGMII_RXID_EN; + + val = adin_get_reg_value(phydev, "adi,rx-internal-delay-ps", + adin_rgmii_delays, + ADIN1300_RGMII_2_00_NS); + reg &= ~ADIN1300_GE_RGMII_RX_MSK; + reg |= ADIN1300_GE_RGMII_RX_SEL(val); } else { reg &= ~ADIN1300_GE_RGMII_RXID_EN; } @@ -64,6 +140,12 @@ static int adin_config_rgmii_mode(struct phy_device *phydev) if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) { reg |= ADIN1300_GE_RGMII_TXID_EN; + + val = adin_get_reg_value(phydev, "adi,tx-internal-delay-ps", + adin_rgmii_delays, + ADIN1300_RGMII_2_00_NS); + reg &= ~ADIN1300_GE_RGMII_GTX_MSK; + reg |= ADIN1300_GE_RGMII_GTX_SEL(val); } else { reg &= ~ADIN1300_GE_RGMII_TXID_EN; } From patchwork Mon Aug 12 11:23:43 2019 Content-Type: text/plain; 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This change adds support for doing this via device-tree (or ACPI). Reviewed-by: Andrew Lunn Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index c882fcd9ada5..4ca685780622 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -52,8 +52,19 @@ #define ADIN1300_RGMII_2_40_NS 0x0007 #define ADIN1300_GE_RMII_CFG_REG 0xff24 +#define ADIN1300_GE_RMII_FIFO_DEPTH_MSK GENMASK(6, 4) +#define ADIN1300_GE_RMII_FIFO_DEPTH_SEL(x) \ + FIELD_PREP(ADIN1300_GE_RMII_FIFO_DEPTH_MSK, x) #define ADIN1300_GE_RMII_EN BIT(0) +/* RMII fifo depth values */ +#define ADIN1300_RMII_4_BITS 0x0000 +#define ADIN1300_RMII_8_BITS 0x0001 +#define ADIN1300_RMII_12_BITS 0x0002 +#define ADIN1300_RMII_16_BITS 0x0003 +#define ADIN1300_RMII_20_BITS 0x0004 +#define ADIN1300_RMII_24_BITS 0x0005 + /** * struct adin_cfg_reg_map - map a config value to aregister value * @cfg value in device configuration @@ -73,6 +84,16 @@ static const struct adin_cfg_reg_map adin_rgmii_delays[] = { { }, }; +static const struct adin_cfg_reg_map adin_rmii_fifo_depths[] = { + { 4, ADIN1300_RMII_4_BITS }, + { 8, ADIN1300_RMII_8_BITS }, + { 12, ADIN1300_RMII_12_BITS }, + { 16, ADIN1300_RMII_16_BITS }, + { 20, ADIN1300_RMII_20_BITS }, + { 24, ADIN1300_RMII_24_BITS }, + { }, +}; + static int adin_lookup_reg_value(const struct adin_cfg_reg_map *tbl, int cfg) { size_t i; @@ -156,6 +177,7 @@ static int adin_config_rgmii_mode(struct phy_device *phydev) static int adin_config_rmii_mode(struct phy_device *phydev) { + u32 val; int reg; if (phydev->interface != PHY_INTERFACE_MODE_RMII) @@ -169,6 +191,13 @@ static int adin_config_rmii_mode(struct phy_device *phydev) reg |= ADIN1300_GE_RMII_EN; + val = adin_get_reg_value(phydev, "adi,fifo-depth-bits", + adin_rmii_fifo_depths, + ADIN1300_RMII_8_BITS); + + reg &= ~ADIN1300_GE_RMII_FIFO_DEPTH_MSK; + reg |= ADIN1300_GE_RMII_FIFO_DEPTH_SEL(val); + return phy_write_mmd(phydev, MDIO_MMD_VEND1, ADIN1300_GE_RMII_CFG_REG, reg); } From patchwork Mon Aug 12 11:23:44 2019 Content-Type: text/plain; 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Received: from nwd2mta2.analog.com (137.71.25.57) by BL2NAM02FT057.mail.protection.outlook.com (10.152.77.36) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:13 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBOCQC004221 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:12 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:12 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 08/14] net: phy: adin: add support MDI/MDIX/Auto-MDI selection Date: Mon, 12 Aug 2019 14:23:44 +0300 Message-ID: <20190812112350.15242-9-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: slWX+HmzTipuRRXanDEgOZvUga+iZ60cHvLhyugdGFqzgBKPTFDG/wPMoHsD4PiOkB781D/5HoWFcDZR7A7GGhU/8ki16izjfrLIk8aUXTmtCs8RgBo3ykr9vffHoNzXxCcYI9kP/YC5TKKFAIcI1KLLcjQdhSWQ0mnPPF8cthwal1hFBU9nNca6R03H+S+50q4+Ypm2Djiat1+5yIFAOGKs7TdsnO0RieT5zU34iYgcmKzjcv35/ZcI3Hi+D6WI07IYlZIkuzikIXqv1X8R4tbEttUa1HEXPqRz4ULVUPkgZ2+L3WjBNuA7JPvJlLaBYYeW0FyBF9pSSyhdhhOozPRKcv4iyYw/yczfr8kP5QQZ2N08lpyTxajfB0fV7PIHBe4eEuKS9nEO270w+loFCqUhJK7LJFWAMgHVgmmdp/A= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:13.1817 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 23a45498-9805-4993-dd74-08d71f179a7c X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PR03MB4466 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The ADIN PHYs support automatic MDI/MDIX negotiation. By default this is disabled, so this is enabled at `config_init`. This is controlled via the PHY Control 1 register. The supported modes are: 1. Manual MDI 2. Manual MDIX 3. Auto MDIX - prefer MDIX 4. Auto MDIX - prefer MDI The phydev mdix & mdix_ctrl fields include modes 3 & 4 into a single auto-mode. So, the default mode this driver enables is 4 when Auto-MDI mode is used. When detecting MDI/MDIX mode, a combination of the PHY Control 1 register and PHY Status 1 register is used to determine the correct MDI/MDIX mode. If Auto-MDI mode is not set, then the manual MDI/MDIX mode is returned. If Auto-MDI mode is set, then MDIX mode is returned differs from the preferred MDI/MDIX mode. This covers all cases where: 1. MDI preferred & Pair01Swapped == MDIX 2. MDIX preferred & Pair01Swapped == MDI 3. MDI preferred & ! Pair01Swapped == MDIX 4. MDIX preferred & ! Pair01Swapped == MDI The preferred MDI/MDIX mode is not configured via SW, but can be configured via HW pins. Note that the `Pair01Swapped` is the Green-Yellow physical pairs. Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 117 +++++++++++++++++++++++++++++++++++++++-- 1 file changed, 113 insertions(+), 4 deletions(-) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index 4ca685780622..51c0d17577de 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -19,6 +19,10 @@ #define ADIN1300_MII_EXT_REG_PTR 0x0010 #define ADIN1300_MII_EXT_REG_DATA 0x0011 +#define ADIN1300_PHY_CTRL1 0x0012 +#define ADIN1300_AUTO_MDI_EN BIT(10) +#define ADIN1300_MAN_MDIX_EN BIT(9) + #define ADIN1300_INT_MASK_REG 0x0018 #define ADIN1300_INT_MDIO_SYNC_EN BIT(9) #define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) @@ -33,6 +37,9 @@ (ADIN1300_INT_LINK_STAT_CHNG_EN | ADIN1300_INT_HW_IRQ_EN) #define ADIN1300_INT_STATUS_REG 0x0019 +#define ADIN1300_PHY_STATUS1 0x001a +#define ADIN1300_PAIR_01_SWAP BIT(11) + #define ADIN1300_GE_RGMII_CFG_REG 0xff23 #define ADIN1300_GE_RGMII_RX_MSK GENMASK(8, 6) #define ADIN1300_GE_RGMII_RX_SEL(x) \ @@ -206,6 +213,8 @@ static int adin_config_init(struct phy_device *phydev) { int rc; + phydev->mdix_ctrl = ETH_TP_MDI_AUTO; + rc = genphy_config_init(phydev); if (rc < 0) return rc; @@ -269,13 +278,113 @@ static int adin_write_mmd(struct phy_device *phydev, int devad, u16 regnum, return __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_DATA, val); } +static int adin_config_mdix(struct phy_device *phydev) +{ + bool auto_en, mdix_en; + int reg; + + mdix_en = false; + auto_en = false; + switch (phydev->mdix_ctrl) { + case ETH_TP_MDI: + break; + case ETH_TP_MDI_X: + mdix_en = true; + break; + case ETH_TP_MDI_AUTO: + auto_en = true; + break; + default: + return -EINVAL; + } + + reg = phy_read(phydev, ADIN1300_PHY_CTRL1); + if (reg < 0) + return reg; + + if (mdix_en) + reg |= ADIN1300_MAN_MDIX_EN; + else + reg &= ~ADIN1300_MAN_MDIX_EN; + + if (auto_en) + reg |= ADIN1300_AUTO_MDI_EN; + else + reg &= ~ADIN1300_AUTO_MDI_EN; + + return phy_write(phydev, ADIN1300_PHY_CTRL1, reg); +} + +static int adin_config_aneg(struct phy_device *phydev) +{ + int ret; + + ret = adin_config_mdix(phydev); + if (ret) + return ret; + + return genphy_config_aneg(phydev); +} + +static int adin_mdix_update(struct phy_device *phydev) +{ + bool auto_en, mdix_en; + bool swapped; + int reg; + + reg = phy_read(phydev, ADIN1300_PHY_CTRL1); + if (reg < 0) + return reg; + + auto_en = !!(reg & ADIN1300_AUTO_MDI_EN); + mdix_en = !!(reg & ADIN1300_MAN_MDIX_EN); + + /* If MDI/MDIX is forced, just read it from the control reg */ + if (!auto_en) { + if (mdix_en) + phydev->mdix = ETH_TP_MDI_X; + else + phydev->mdix = ETH_TP_MDI; + return 0; + } + + /** + * Otherwise, we need to deduce it from the PHY status2 reg. + * When Auto-MDI is enabled, the ADIN1300_MAN_MDIX_EN bit implies + * a preference for MDIX when it is set. + */ + reg = phy_read(phydev, ADIN1300_PHY_STATUS1); + if (reg < 0) + return reg; + + swapped = !!(reg & ADIN1300_PAIR_01_SWAP); + + if (mdix_en != swapped) + phydev->mdix = ETH_TP_MDI_X; + else + phydev->mdix = ETH_TP_MDI; + + return 0; +} + +static int adin_read_status(struct phy_device *phydev) +{ + int ret; + + ret = adin_mdix_update(phydev); + if (ret < 0) + return ret; + + return genphy_read_status(phydev); +} + static struct phy_driver adin_driver[] = { { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200), .name = "ADIN1200", .config_init = adin_config_init, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, + .config_aneg = adin_config_aneg, + .read_status = adin_read_status, .ack_interrupt = adin_phy_ack_intr, .config_intr = adin_phy_config_intr, .resume = genphy_resume, @@ -287,8 +396,8 @@ static struct phy_driver adin_driver[] = { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300), .name = "ADIN1300", .config_init = adin_config_init, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, + .config_aneg = adin_config_aneg, + .read_status = adin_read_status, .ack_interrupt = adin_phy_ack_intr, .config_intr = adin_phy_config_intr, .resume = genphy_resume, From patchwork Mon Aug 12 11:23:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 1145644 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; 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Mon, 12 Aug 2019 11:24:15 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.57 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.57; helo=nwd2mta2.analog.com; Received: from nwd2mta2.analog.com (137.71.25.57) by BL2NAM02FT008.mail.protection.outlook.com (10.152.76.162) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:15 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBOEXC004232 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:15 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:14 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 09/14] net: phy: adin: add EEE translation layer from Clause 45 to Clause 22 Date: Mon, 12 Aug 2019 14:23:45 +0300 Message-ID: <20190812112350.15242-10-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: JoxudUcrZBls8iAlpc60IClGubdMhmcOeN6xbwb1EzszkWRFC51RBym3RoatVJQrBjWGYvQgf4UT3rF8NsgaMjwOWZR8u6ftCTacmUH9LNIxYJoTz0EyhQvGg0ZmsMyJfbbOtzXR2DznpnGXHw7W/Ji5ic8hC8eNboUJgFBgOkmB2niEAMRzhN6HhNxH8Oa5WSDF9NjfqtShPeOSnwZ3KqhOva7OHu/SewiQ4x53M+Vv55J/a6bJkZL/sOHd4LM29uEWN6QsatqKiSTsmlnwEn7nZeXeXFuKXnI6qGbZm6g3tTIpKGYdliQTLOKLO1uvzpeq6mVYeCMU/Jcx0qUI5bLciwbqjPHw+8Z5ck7vJi2UEBVzGrIZpIxuWNluIL7C1Pbe02MfPRQMYPATZx/v1RnSYbpwAEFvNGbbMSUR9Wk= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:15.1953 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 05be12db-d679-492c-f7a2-08d71f179baf X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR03MB4787 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=840 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The ADIN1200 & ADIN1300 PHYs support EEE by using standard Clause 45 access to access MMD registers for EEE. The EEE register addresses (when using Clause 22) are available at different addresses (than Clause 45), and since accessing these regs (via Clause 22) needs a special mechanism, a translation table is required to convert these addresses. For Clause 45, this is not needed since the driver will likely never use this access mode. Signed-off-by: Alexandru Ardelean Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 69 ++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 67 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index 51c0d17577de..a0f8b616bcb7 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -40,6 +40,17 @@ #define ADIN1300_PHY_STATUS1 0x001a #define ADIN1300_PAIR_01_SWAP BIT(11) +/* EEE register addresses, accessible via Clause 22 access using + * ADIN1300_MII_EXT_REG_PTR & ADIN1300_MII_EXT_REG_DATA. + * The bit-fields are the same as specified by IEEE, and can be + * accessed via standard Clause 45 access. + */ +#define ADIN1300_EEE_CAP_REG 0x8000 +#define ADIN1300_EEE_ADV_REG 0x8001 +#define ADIN1300_EEE_LPABLE_REG 0x8002 +#define ADIN1300_CLOCK_STOP_REG 0x9400 +#define ADIN1300_LPI_WAKE_ERR_CNT_REG 0xa000 + #define ADIN1300_GE_RGMII_CFG_REG 0xff23 #define ADIN1300_GE_RGMII_RX_MSK GENMASK(8, 6) #define ADIN1300_GE_RGMII_RX_SEL(x) \ @@ -101,6 +112,26 @@ static const struct adin_cfg_reg_map adin_rmii_fifo_depths[] = { { }, }; +/** + * struct adin_clause45_mmd_map - map to convert Clause 45 regs to Clause 22 + * @devad device address used in Clause 45 access + * @cl45_regnum register address defined by Clause 45 + * @adin_regnum equivalent register address accessible via Clause 22 + */ +struct adin_clause45_mmd_map { + int devad; + u16 cl45_regnum; + u16 adin_regnum; +}; + +static struct adin_clause45_mmd_map adin_clause45_mmd_map[] = { + { MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE, ADIN1300_EEE_CAP_REG }, + { MDIO_MMD_AN, MDIO_AN_EEE_LPABLE, ADIN1300_EEE_LPABLE_REG }, + { MDIO_MMD_AN, MDIO_AN_EEE_ADV, ADIN1300_EEE_ADV_REG }, + { MDIO_MMD_PCS, MDIO_CTRL1, ADIN1300_CLOCK_STOP_REG }, + { MDIO_MMD_PCS, MDIO_PCS_EEE_WK_ERR, ADIN1300_LPI_WAKE_ERR_CNT_REG }, +}; + static int adin_lookup_reg_value(const struct adin_cfg_reg_map *tbl, int cfg) { size_t i; @@ -251,13 +282,41 @@ static int adin_phy_config_intr(struct phy_device *phydev) ADIN1300_INT_MASK_EN); } +static int adin_cl45_to_adin_reg(struct phy_device *phydev, int devad, + u16 cl45_regnum) +{ + struct adin_clause45_mmd_map *m; + int i; + + if (devad == MDIO_MMD_VEND1) + return cl45_regnum; + + for (i = 0; i < ARRAY_SIZE(adin_clause45_mmd_map); i++) { + m = &adin_clause45_mmd_map[i]; + if (m->devad == devad && m->cl45_regnum == cl45_regnum) + return m->adin_regnum; + } + + phydev_err(phydev, + "No translation available for devad: %d reg: %04x\n", + devad, cl45_regnum); + + return -EINVAL; +} + static int adin_read_mmd(struct phy_device *phydev, int devad, u16 regnum) { struct mii_bus *bus = phydev->mdio.bus; int phy_addr = phydev->mdio.addr; + int adin_regnum; int err; - err = __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_PTR, regnum); + adin_regnum = adin_cl45_to_adin_reg(phydev, devad, regnum); + if (adin_regnum < 0) + return adin_regnum; + + err = __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_PTR, + adin_regnum); if (err) return err; @@ -269,9 +328,15 @@ static int adin_write_mmd(struct phy_device *phydev, int devad, u16 regnum, { struct mii_bus *bus = phydev->mdio.bus; int phy_addr = phydev->mdio.addr; + int adin_regnum; int err; - err = __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_PTR, regnum); + adin_regnum = adin_cl45_to_adin_reg(phydev, devad, regnum); + if (adin_regnum < 0) + return adin_regnum; + + err = __mdiobus_write(bus, phy_addr, ADIN1300_MII_EXT_REG_PTR, + adin_regnum); if (err) return err; From patchwork Mon Aug 12 11:23:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 1145643 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=analog.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; 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Mon, 12 Aug 2019 11:24:18 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.57 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.57; helo=nwd2mta2.analog.com; Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT022.mail.protection.outlook.com (10.152.75.185) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:17 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBOGLr004239 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:17 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:16 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 10/14] net: phy: adin: implement PHY subsystem software reset Date: Mon, 12 Aug 2019 14:23:46 +0300 Message-ID: <20190812112350.15242-11-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: IyKb7ZFvfsMHKnqsr9esB8GAaUOlQMrO0697qkja4LEXLw3VA2/8bkM2d+RAFDHbCoffVbkBVK1Ckcl9L8jtnCvp04dyKaN7HowbD4n9VbnWZCO8B+ukMehnmVa8zX9HzYaIbac9Dca83e9soHgcIUpuM1zyNt1Dk4qsVwMhtYboJRHoMRS+rVQ66dsDlcBJm+qv3cRIsK5lwbQwSakPhnhaDc9/VUDJVwt+/nN6YU2njwgGQQcesoJQk6P/+GOaTIG39qdZY+cxXuu9/jOXHdTBZBGHnNZbqf70pXYBk7zKYw4gKcvqA2n27SUONcCIAXscl40kdwXmygT5BXzCj1E4pNx75lnhKSkuE7BhgfxlVU7vdarJUH7KQS1btdtGwCXd8I+bVbDBah3l+nfTNySX2bgT4lY0STwTOiNzd8c= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:17.5891 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 0d0f27e9-7451-4664-4796-08d71f179d60 X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR03MB4702 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=797 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The ADIN PHYs supports 4 types of reset: 1. The standard PHY reset via BMCR_RESET bit in MII_BMCR reg 2. Reset via GPIO 3. Reset via reg GeSftRst (0xff0c) & reload previous pin configs 4. Reset via reg GeSftRst (0xff0c) & request new pin configs Resets 2 & 4 are almost identical, with the exception that the crystal oscillator is available during reset for 2. As it turns out, phylib already supports GPIO reset. In case this is configured, the PHY driver won't do anything. In case it isn't specified the subsystem software reset will kick in. Resetting via GeSftRst or via GPIO is useful when doing a warm reboot, because this will reset the subsystem registers to default values. Signed-off-by: Alexandru Ardelean --- drivers/net/phy/adin.c | 43 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index a0f8b616bcb7..ddf0512a9a4d 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include @@ -51,6 +52,9 @@ #define ADIN1300_CLOCK_STOP_REG 0x9400 #define ADIN1300_LPI_WAKE_ERR_CNT_REG 0xa000 +#define ADIN1300_GE_SOFT_RESET_REG 0xff0c +#define ADIN1300_GE_SOFT_RESET BIT(0) + #define ADIN1300_GE_RGMII_CFG_REG 0xff23 #define ADIN1300_GE_RGMII_RX_MSK GENMASK(8, 6) #define ADIN1300_GE_RGMII_RX_SEL(x) \ @@ -443,11 +447,49 @@ static int adin_read_status(struct phy_device *phydev) return genphy_read_status(phydev); } +static int adin_subsytem_soft_reset(struct phy_device *phydev) +{ + int reg, rc, i; + + rc = phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, + ADIN1300_GE_SOFT_RESET_REG, + ADIN1300_GE_SOFT_RESET); + if (rc < 0) + return rc; + + for (i = 0; i < 20; i++) { + usleep_range(500, 1000); + reg = phy_read_mmd(phydev, MDIO_MMD_VEND1, + ADIN1300_GE_SOFT_RESET_REG); + if (reg < 0 || (reg & ADIN1300_GE_SOFT_RESET)) + continue; + return 0; + } + + return -ETIMEDOUT; +} + +static int adin_reset(struct phy_device *phydev) +{ + /* If there is a reset GPIO just exit */ + if (!IS_ERR_OR_NULL(phydev->mdio.reset_gpio)) + return 0; + + /* Reset PHY core regs & subsystem regs */ + return adin_subsytem_soft_reset(phydev); +} + +static int adin_probe(struct phy_device *phydev) +{ + return adin_reset(phydev); +} + static struct phy_driver adin_driver[] = { { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1200), .name = "ADIN1200", .config_init = adin_config_init, + .probe = adin_probe, .config_aneg = adin_config_aneg, .read_status = adin_read_status, .ack_interrupt = adin_phy_ack_intr, @@ -461,6 +503,7 @@ static struct phy_driver adin_driver[] = { PHY_ID_MATCH_MODEL(PHY_ID_ADIN1300), .name = "ADIN1300", .config_init = adin_config_init, + .probe = adin_probe, .config_aneg = adin_config_aneg, .read_status = adin_read_status, .ack_interrupt = adin_phy_ack_intr, From patchwork Mon Aug 12 11:23:47 2019 Content-Type: text/plain; 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Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT019.mail.protection.outlook.com (10.152.75.177) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:19 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBOJhN004260 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:19 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:18 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 11/14] net: phy: adin: implement Energy Detect Powerdown mode Date: Mon, 12 Aug 2019 14:23:47 +0300 Message-ID: <20190812112350.15242-12-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: LYjakc6DolE2qPvXA9rOrdGmpWfZ6dAoPSe3N+4ClzTFX4h8eJa9luSn1eQ/64bceBzAGgtZv1VtAKVYDMbSzaxuqRfpoUvce09p4/3LzWZnwGEINGfsP+a7yPGi4naf2FzA7D61bp0KbMNfCGcrnObeZ7ScnyHKqUytGPjnR/Tbx01RWpKW6UgqVV72+THEtUvJ/Cxf5R6cZz6KK9HESXU6U2M+KgIqA/70kVIakVelFn1ZPjnicKrKGRGjcnP/3e0oX1Dve00T9s3IEh06bNmezvS1/WOl64sZqxOsfb83HIztuxRJ376V1jEdQeoLolkd0DHUCTWrdXXfFKyUKzXMxp0AlveuObacV5iQQ41oskUn2xfGw2olc2ZVIZ3t38DiB2hEkFsDgZ4V/8GNJoFK/VWafDX/VYeMgWDRGGc= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:19.7401 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 613a0036-5822-49d3-07e4-08d71f179ea8 X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR03MB4257 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The ADIN PHYs support Energy Detect Powerdown mode, which puts the PHY into a low power mode when there is no signal on the wire (typically cable unplugged). This behavior is enabled by default, but can be disabled via device property. Signed-off-by: Alexandru Ardelean Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index ddf0512a9a4d..131a72567f25 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -24,6 +24,11 @@ #define ADIN1300_AUTO_MDI_EN BIT(10) #define ADIN1300_MAN_MDIX_EN BIT(9) +#define ADIN1300_PHY_CTRL_STATUS2 0x0015 +#define ADIN1300_NRG_PD_EN BIT(3) +#define ADIN1300_NRG_PD_TX_EN BIT(2) +#define ADIN1300_NRG_PD_STATUS BIT(1) + #define ADIN1300_INT_MASK_REG 0x0018 #define ADIN1300_INT_MDIO_SYNC_EN BIT(9) #define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) @@ -136,6 +141,14 @@ static struct adin_clause45_mmd_map adin_clause45_mmd_map[] = { { MDIO_MMD_PCS, MDIO_PCS_EEE_WK_ERR, ADIN1300_LPI_WAKE_ERR_CNT_REG }, }; +/** + * struct adin_priv - ADIN PHY driver private data + * edpd_enabled true if Energy Detect Powerdown mode is enabled + */ +struct adin_priv { + bool edpd_enabled; +}; + static int adin_lookup_reg_value(const struct adin_cfg_reg_map *tbl, int cfg) { size_t i; @@ -244,6 +257,18 @@ static int adin_config_rmii_mode(struct phy_device *phydev) ADIN1300_GE_RMII_CFG_REG, reg); } +static int adin_config_init_edpd(struct phy_device *phydev) +{ + struct adin_priv *priv = phydev->priv; + + if (priv->edpd_enabled) + return phy_set_bits(phydev, ADIN1300_PHY_CTRL_STATUS2, + (ADIN1300_NRG_PD_EN | ADIN1300_NRG_PD_TX_EN)); + + return phy_clear_bits(phydev, ADIN1300_PHY_CTRL_STATUS2, + (ADIN1300_NRG_PD_EN | ADIN1300_NRG_PD_TX_EN)); +} + static int adin_config_init(struct phy_device *phydev) { int rc; @@ -262,6 +287,10 @@ static int adin_config_init(struct phy_device *phydev) if (rc < 0) return rc; + rc = adin_config_init_edpd(phydev); + if (rc < 0) + return rc; + phydev_dbg(phydev, "PHY is using mode '%s'\n", phy_modes(phydev->interface)); @@ -481,6 +510,17 @@ static int adin_reset(struct phy_device *phydev) static int adin_probe(struct phy_device *phydev) { + struct device *dev = &phydev->mdio.dev; + struct adin_priv *priv; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->edpd_enabled = + device_property_read_bool(dev, "adi,disable-energy-detect"); + phydev->priv = priv; + return adin_reset(phydev); } From patchwork Mon Aug 12 11:23:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Ardelean X-Patchwork-Id: 1145642 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=analog.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=analog.onmicrosoft.com header.i=@analog.onmicrosoft.com header.b="VULJv5wD"; 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Mon, 12 Aug 2019 11:24:22 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.57 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.57; helo=nwd2mta2.analog.com; Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT039.mail.protection.outlook.com (10.152.75.140) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:21 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBOLir004264 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:21 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:20 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 12/14] net: phy: adin: implement downshift configuration via phy-tunable Date: Mon, 12 Aug 2019 14:23:48 +0300 Message-ID: <20190812112350.15242-13-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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X-Forefront-PRVS: 012792EC17 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info: ial0t8gwZR4EixppbIdyZKxhC3ExJifHEyuJHTTXB95ghwxElrMhD19lTzxK1ysuqDV8fKbUbWrrh6Dg0IoHQYHhWx1T+BOxn8wtEsm+ZRYheGzem2+NCxe0Q/f0hZIh69eu3MvnlJTZZd6eaY/DQfKzroB4VcE4VTWCMsIcBxYhgMZ6NomLviIdSNJAZYtUB/nWD1gRN971QQgkcl3DFAdWmhCyL9QeA0V3guoOa1UXq1MB+hetWgQZmwV80e6cm3gunWxl50T5NHxGrHtJX+5EBOOZx+i6gCluYZH3FO6rNhHoPglEWgTCo7WEqiTa9BE6Qn6NbEE8PoSAU8DaDyoDTZjyS3GZX6boHASy7ym5nd0Nlj0XjaFSUZ0sZe3TP7M3qAu78/ozdNdsc/N8JD6FY2jIqtvRYeMFj+u8R78= X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Aug 2019 11:24:21.7816 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f17b838a-94fb-4f58-feaf-08d71f179fdf X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a; Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN2PR03MB2415 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=821 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Down-speed auto-negotiation may not always be enabled, in which case the PHY won't down-shift to 100 or 10 during auto-negotiation. This change enables downshift and configures the number of retries to default 4 (which is also in the datasheet The downshift control mechanism can also be controlled via the phy-tunable interface (ETHTOOL_PHY_DOWNSHIFT control). The change has been adapted from the Aquantia PHY driver. Signed-off-by: Alexandru Ardelean Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli --- drivers/net/phy/adin.c | 86 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index 131a72567f25..e4afa8c2bec7 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -29,6 +29,17 @@ #define ADIN1300_NRG_PD_TX_EN BIT(2) #define ADIN1300_NRG_PD_STATUS BIT(1) +#define ADIN1300_PHY_CTRL2 0x0016 +#define ADIN1300_DOWNSPEED_AN_100_EN BIT(11) +#define ADIN1300_DOWNSPEED_AN_10_EN BIT(10) +#define ADIN1300_GROUP_MDIO_EN BIT(6) +#define ADIN1300_DOWNSPEEDS_EN \ + (ADIN1300_DOWNSPEED_AN_100_EN | ADIN1300_DOWNSPEED_AN_10_EN) + +#define ADIN1300_PHY_CTRL3 0x0017 +#define ADIN1300_LINKING_EN BIT(13) +#define ADIN1300_DOWNSPEED_RETRIES_MSK GENMASK(12, 10) + #define ADIN1300_INT_MASK_REG 0x0018 #define ADIN1300_INT_MDIO_SYNC_EN BIT(9) #define ADIN1300_INT_ANEG_STAT_CHNG_EN BIT(8) @@ -257,6 +268,73 @@ static int adin_config_rmii_mode(struct phy_device *phydev) ADIN1300_GE_RMII_CFG_REG, reg); } +static int adin_get_downshift(struct phy_device *phydev, u8 *data) +{ + int val, cnt, enable; + + val = phy_read(phydev, ADIN1300_PHY_CTRL2); + if (val < 0) + return val; + + cnt = phy_read(phydev, ADIN1300_PHY_CTRL3); + if (cnt < 0) + return cnt; + + enable = FIELD_GET(ADIN1300_DOWNSPEEDS_EN, val); + cnt = FIELD_GET(ADIN1300_DOWNSPEED_RETRIES_MSK, cnt); + + *data = enable & cnt ? cnt : DOWNSHIFT_DEV_DISABLE; + + return 0; +} + +static int adin_set_downshift(struct phy_device *phydev, u8 cnt) +{ + u16 val; + int rc; + + if (cnt == DOWNSHIFT_DEV_DISABLE) + return phy_clear_bits(phydev, ADIN1300_PHY_CTRL2, + ADIN1300_DOWNSPEEDS_EN); + + if (cnt > 8) + return -E2BIG; + + val = FIELD_PREP(ADIN1300_DOWNSPEED_RETRIES_MSK, cnt); + val |= ADIN1300_LINKING_EN; + + rc = phy_modify(phydev, ADIN1300_PHY_CTRL3, + ADIN1300_LINKING_EN | ADIN1300_DOWNSPEED_RETRIES_MSK, + val); + if (rc < 0) + return rc; + + return phy_set_bits(phydev, ADIN1300_PHY_CTRL2, + ADIN1300_DOWNSPEEDS_EN); +} + +static int adin_get_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: + return adin_get_downshift(phydev, data); + default: + return -EOPNOTSUPP; + } +} + +static int adin_set_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, const void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: + return adin_set_downshift(phydev, *(const u8 *)data); + default: + return -EOPNOTSUPP; + } +} + static int adin_config_init_edpd(struct phy_device *phydev) { struct adin_priv *priv = phydev->priv; @@ -287,6 +365,10 @@ static int adin_config_init(struct phy_device *phydev) if (rc < 0) return rc; + rc = adin_set_downshift(phydev, 4); + if (rc < 0) + return rc; + rc = adin_config_init_edpd(phydev); if (rc < 0) return rc; @@ -532,6 +614,8 @@ static struct phy_driver adin_driver[] = { .probe = adin_probe, .config_aneg = adin_config_aneg, .read_status = adin_read_status, + .get_tunable = adin_get_tunable, + .set_tunable = adin_set_tunable, .ack_interrupt = adin_phy_ack_intr, .config_intr = adin_phy_config_intr, .resume = genphy_resume, @@ -546,6 +630,8 @@ static struct phy_driver adin_driver[] = { .probe = adin_probe, .config_aneg = adin_config_aneg, .read_status = adin_read_status, + .get_tunable = adin_get_tunable, + .set_tunable = adin_set_tunable, .ack_interrupt = adin_phy_ack_intr, .config_intr = adin_phy_config_intr, .resume = genphy_resume, From patchwork Mon Aug 12 11:23:49 2019 Content-Type: text/plain; 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Received: from nwd2mta2.analog.com (137.71.25.57) by CY1NAM02FT060.mail.protection.outlook.com (10.152.74.252) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2157.15 via Frontend Transport; Mon, 12 Aug 2019 11:24:23 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta2.analog.com (8.13.8/8.13.8) with ESMTP id x7CBON13004269 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Mon, 12 Aug 2019 04:24:23 -0700 Received: from saturn.ad.analog.com (10.48.65.113) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server id 14.3.408.0; Mon, 12 Aug 2019 07:24:22 -0400 From: Alexandru Ardelean To: , , CC: , , , , , , Alexandru Ardelean Subject: [PATCH v4 13/14] net: phy: adin: add ethtool get_stats support Date: Mon, 12 Aug 2019 14:23:49 +0300 Message-ID: <20190812112350.15242-14-alexandru.ardelean@analog.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190812112350.15242-1-alexandru.ardelean@analog.com> References: <20190812112350.15242-1-alexandru.ardelean@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.57; 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The PHY supports several error counters/stats. The `Mean Square Errors` status values are only valie when a link is established, and shouldn't be accumulated. These values characterize the quality of a signal. The rest of the error counters are self-clearing on read. Most of them are reports from the Frame Checker engine that the PHY has. Not retrieving the `LPI Wake Error Count Register` here, since that is used by the PHY framework to check for any EEE errors. And that register is self-clearing when read (as per IEEE spec). Signed-off-by: Alexandru Ardelean --- drivers/net/phy/adin.c | 109 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) diff --git a/drivers/net/phy/adin.c b/drivers/net/phy/adin.c index e4afa8c2bec7..3ab15a585c1b 100644 --- a/drivers/net/phy/adin.c +++ b/drivers/net/phy/adin.c @@ -152,12 +152,40 @@ static struct adin_clause45_mmd_map adin_clause45_mmd_map[] = { { MDIO_MMD_PCS, MDIO_PCS_EEE_WK_ERR, ADIN1300_LPI_WAKE_ERR_CNT_REG }, }; +struct adin_hw_stat { + const char *string; + u16 reg1; + u16 reg2; + bool do_not_accumulate; +}; + +/* Named just like in the datasheet */ +static struct adin_hw_stat adin_hw_stats[] = { + { "RxErrCnt", 0x0014, }, + { "MseA", 0x8402, 0, true }, + { "MseB", 0x8403, 0, true }, + { "MseC", 0x8404, 0, true }, + { "MseD", 0x8405, 0, true }, + { "FcFrmCnt", 0x940A, 0x940B }, /* FcFrmCntH + FcFrmCntL */ + { "FcLenErrCnt", 0x940C }, + { "FcAlgnErrCnt", 0x940D }, + { "FcSymbErrCnt", 0x940E }, + { "FcOszCnt", 0x940F }, + { "FcUszCnt", 0x9410 }, + { "FcOddCnt", 0x9411 }, + { "FcOddPreCnt", 0x9412 }, + { "FcDribbleBitsCnt", 0x9413 }, + { "FcFalseCarrierCnt", 0x9414 }, +}; + /** * struct adin_priv - ADIN PHY driver private data * edpd_enabled true if Energy Detect Powerdown mode is enabled + * stats statistic counters for the PHY */ struct adin_priv { bool edpd_enabled; + u64 stats[ARRAY_SIZE(adin_hw_stats)]; }; static int adin_lookup_reg_value(const struct adin_cfg_reg_map *tbl, int cfg) @@ -590,6 +618,81 @@ static int adin_reset(struct phy_device *phydev) return adin_subsytem_soft_reset(phydev); } +static int adin_get_sset_count(struct phy_device *phydev) +{ + return ARRAY_SIZE(adin_hw_stats); +} + +static void adin_get_strings(struct phy_device *phydev, u8 *data) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(adin_hw_stats); i++) { + strlcpy(&data[i * ETH_GSTRING_LEN], + adin_hw_stats[i].string, ETH_GSTRING_LEN); + } +} + +static int adin_read_mmd_stat_regs(struct phy_device *phydev, + struct adin_hw_stat *stat, + u32 *val) +{ + int ret; + + ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, stat->reg1); + if (ret < 0) + return ret; + + *val = (ret & 0xffff); + + if (stat->reg2 == 0) + return 0; + + ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, stat->reg2); + if (ret < 0) + return ret; + + *val <<= 16; + *val |= (ret & 0xffff); + + return 0; +} + +static u64 adin_get_stat(struct phy_device *phydev, int i) +{ + struct adin_hw_stat *stat = &adin_hw_stats[i]; + struct adin_priv *priv = phydev->priv; + u32 val; + int ret; + + if (stat->reg1 > 0x1f) { + ret = adin_read_mmd_stat_regs(phydev, stat, &val); + if (ret < 0) + return (u64)(~0); + } else { + ret = phy_read(phydev, stat->reg1); + if (ret < 0) + return (u64)(~0); + val = (ret & 0xffff); + } + + if (stat->do_not_accumulate) + priv->stats[i] = val; + else + priv->stats[i] += val; + + return priv->stats[i]; +} + +static void adin_get_stats(struct phy_device *phydev, + struct ethtool_stats *stats, u64 *data) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(adin_hw_stats); i++) + data[i] = adin_get_stat(phydev, i); +} + static int adin_probe(struct phy_device *phydev) { struct device *dev = &phydev->mdio.dev; @@ -618,6 +721,9 @@ static struct phy_driver adin_driver[] = { .set_tunable = adin_set_tunable, .ack_interrupt = adin_phy_ack_intr, .config_intr = adin_phy_config_intr, + .get_sset_count = adin_get_sset_count, + .get_strings = adin_get_strings, + .get_stats = adin_get_stats, .resume = genphy_resume, .suspend = genphy_suspend, .read_mmd = adin_read_mmd, @@ -634,6 +740,9 @@ static struct phy_driver adin_driver[] = { .set_tunable = adin_set_tunable, .ack_interrupt = adin_phy_ack_intr, .config_intr = adin_phy_config_intr, + .get_sset_count = adin_get_sset_count, + .get_strings = adin_get_strings, + .get_stats = adin_get_stats, .resume = genphy_resume, .suspend = genphy_suspend, .read_mmd = adin_read_mmd, From patchwork Mon Aug 12 11:23:50 2019 Content-Type: text/plain; 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Ip=[137.71.25.57]; Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR03MB4689 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-08-12_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908120128 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This change adds bindings for the Analog Devices ADIN PHY driver, detailing all the properties implemented by the driver. Signed-off-by: Alexandru Ardelean Reviewed-by: Andrew Lunn Reviewed-by: Rob Herring --- .../devicetree/bindings/net/adi,adin.yaml | 73 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/adi,adin.yaml diff --git a/Documentation/devicetree/bindings/net/adi,adin.yaml b/Documentation/devicetree/bindings/net/adi,adin.yaml new file mode 100644 index 000000000000..69375cb28e92 --- /dev/null +++ b/Documentation/devicetree/bindings/net/adi,adin.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: GPL-2.0+ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/adi,adin.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices ADIN1200/ADIN1300 PHY + +maintainers: + - Alexandru Ardelean + +description: | + Bindings for Analog Devices Industrial Ethernet PHYs + +allOf: + - $ref: ethernet-phy.yaml# + +properties: + adi,rx-internal-delay-ps: + description: | + RGMII RX Clock Delay used only when PHY operates in RGMII mode with + internal delay (phy-mode is 'rgmii-id' or 'rgmii-rxid') in pico-seconds. + enum: [ 1600, 1800, 2000, 2200, 2400 ] + default: 2000 + + adi,tx-internal-delay-ps: + description: | + RGMII TX Clock Delay used only when PHY operates in RGMII mode with + internal delay (phy-mode is 'rgmii-id' or 'rgmii-txid') in pico-seconds. + enum: [ 1600, 1800, 2000, 2200, 2400 ] + default: 2000 + + adi,fifo-depth-bits: + description: | + When operating in RMII mode, this option configures the FIFO depth. + enum: [ 4, 8, 12, 16, 20, 24 ] + default: 8 + + adi,disable-energy-detect: + description: | + Disables Energy Detect Powerdown Mode (default disabled, i.e energy detect + is enabled if this property is unspecified) + type: boolean + +examples: + - | + ethernet { + #address-cells = <1>; + #size-cells = <0>; + + phy-mode = "rgmii-id"; + + ethernet-phy@0 { + reg = <0>; + + adi,rx-internal-delay-ps = <1800>; + adi,tx-internal-delay-ps = <2200>; + }; + }; + - | + ethernet { + #address-cells = <1>; + #size-cells = <0>; + + phy-mode = "rmii"; + + ethernet-phy@1 { + reg = <1>; + + adi,fifo-depth-bits = <16>; + adi,disable-energy-detect; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index e8aa8a667864..fd9ab61c2670 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -944,6 +944,7 @@ L: netdev@vger.kernel.org W: http://ez.analog.com/community/linux-device-drivers S: Supported F: drivers/net/phy/adin.c +F: Documentation/devicetree/bindings/net/adi,adin.yaml ANALOG DEVICES INC ADIS DRIVER LIBRARY M: Alexandru Ardelean