From patchwork Tue Feb 9 16:40:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Walle X-Patchwork-Id: 12078597 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1076AC433E0 for ; Tue, 9 Feb 2021 16:44:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C3E2164DD1 for ; Tue, 9 Feb 2021 16:44:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233134AbhBIQnz (ORCPT ); Tue, 9 Feb 2021 11:43:55 -0500 Received: from ssl.serverraum.org ([176.9.125.105]:36017 "EHLO ssl.serverraum.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233011AbhBIQlx (ORCPT ); Tue, 9 Feb 2021 11:41:53 -0500 Received: from mwalle01.fritz.box (unknown [IPv6:2a02:810c:c200:2e91:fa59:71ff:fe9b:b851]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ssl.serverraum.org (Postfix) with ESMTPSA id DE4A923E7F; Tue, 9 Feb 2021 17:41:01 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2016061301; t=1612888862; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Hx8lbEiJ+gmDVJOKwmg0FXofM77nJY0HprEqCmZ0HO4=; b=oRBjltWzwVehv8bvEE/KBHhO8Ld+O8d/1tSPFyivCU+elIYjgb+nmTR5CBdYS2wyfCvAts OXhlrEmFbcoyBfi9SEQfnTUfkUrsbtnNQe9UmmbnT/Pjuvv0o8/Ohv/14Sf6LHpqIE60VH pyAbjSWKf3MhKKfuak+weiMrKkyysZ4= From: Michael Walle To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Andrew Lunn , Heiner Kallweit , Russell King , "David S . Miller" , Jakub Kicinski , Michael Walle Subject: [PATCH net-next 9/9] net: phy: icplus: add MDI/MDIX support for IP101A/G Date: Tue, 9 Feb 2021 17:40:51 +0100 Message-Id: <20210209164051.18156-10-michael@walle.cc> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210209164051.18156-1-michael@walle.cc> References: <20210209164051.18156-1-michael@walle.cc> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Implement the operations to set desired mode and retrieve the current mode. This feature was tested with an IP101G. Signed-off-by: Michael Walle Reviewed-by: Andrew Lunn --- drivers/net/phy/icplus.c | 91 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c index d1b57d81f281..a2fee2d08ec2 100644 --- a/drivers/net/phy/icplus.c +++ b/drivers/net/phy/icplus.c @@ -37,12 +37,17 @@ MODULE_LICENSE("GPL"); #define IP1001_SPEC_CTRL_STATUS_2 20 /* IP1001 Spec. Control Reg 2 */ #define IP1001_APS_ON 11 /* IP1001 APS Mode bit */ #define IP101A_G_APS_ON BIT(1) /* IP101A/G APS Mode bit */ +#define IP101A_G_AUTO_MDIX_DIS BIT(11) #define IP101A_G_IRQ_CONF_STATUS 0x11 /* Conf Info IRQ & Status Reg */ #define IP101A_G_IRQ_PIN_USED BIT(15) /* INTR pin used */ #define IP101A_G_IRQ_ALL_MASK BIT(11) /* IRQ's inactive */ #define IP101A_G_IRQ_SPEED_CHANGE BIT(2) #define IP101A_G_IRQ_DUPLEX_CHANGE BIT(1) #define IP101A_G_IRQ_LINK_CHANGE BIT(0) +#define IP101A_G_PHY_STATUS 18 +#define IP101A_G_MDIX BIT(9) +#define IP101A_G_PHY_SPEC_CTRL 30 +#define IP101A_G_FORCE_MDIX BIT(3) #define IP101G_PAGE_CONTROL 0x14 #define IP101G_PAGE_CONTROL_MASK GENMASK(4, 0) @@ -327,6 +332,90 @@ static int ip101a_g_config_init(struct phy_device *phydev) return phy_restore_page(phydev, oldpage, err); } +static int ip101a_g_read_status(struct phy_device *phydev) +{ + int oldpage, ret, stat1, stat2; + + ret = genphy_read_status(phydev); + if (ret) + return ret; + + oldpage = phy_select_page(phydev, IP101G_DEFAULT_PAGE); + + ret = __phy_read(phydev, IP10XX_SPEC_CTRL_STATUS); + if (ret < 0) + goto out; + stat1 = ret; + + ret = __phy_read(phydev, IP101A_G_PHY_SPEC_CTRL); + if (ret < 0) + goto out; + stat2 = ret; + + if (stat1 & IP101A_G_AUTO_MDIX_DIS) { + if (stat2 & IP101A_G_FORCE_MDIX) + phydev->mdix_ctrl = ETH_TP_MDI_X; + else + phydev->mdix_ctrl = ETH_TP_MDI; + } else { + phydev->mdix_ctrl = ETH_TP_MDI_AUTO; + } + + if (stat2 & IP101A_G_MDIX) + phydev->mdix = ETH_TP_MDI_X; + else + phydev->mdix = ETH_TP_MDI; + + ret = 0; + +out: + return phy_restore_page(phydev, oldpage, ret); +} + +static int ip101a_g_config_mdix(struct phy_device *phydev) +{ + u16 ctrl = 0, ctrl2 = 0; + int oldpage, ret; + + switch (phydev->mdix_ctrl) { + case ETH_TP_MDI: + ctrl = IP101A_G_AUTO_MDIX_DIS; + break; + case ETH_TP_MDI_X: + ctrl = IP101A_G_AUTO_MDIX_DIS; + ctrl2 = IP101A_G_FORCE_MDIX; + break; + case ETH_TP_MDI_AUTO: + break; + default: + return 0; + } + + oldpage = phy_select_page(phydev, IP101G_DEFAULT_PAGE); + + ret = __phy_modify(phydev, IP10XX_SPEC_CTRL_STATUS, + IP101A_G_AUTO_MDIX_DIS, ctrl); + if (ret) + goto out; + + ret = __phy_modify(phydev, IP101A_G_PHY_SPEC_CTRL, + IP101A_G_FORCE_MDIX, ctrl2); + +out: + return phy_restore_page(phydev, oldpage, ret); +} + +static int ip101a_g_config_aneg(struct phy_device *phydev) +{ + int ret; + + ret = ip101a_g_config_mdix(phydev); + if (ret) + return ret; + + return genphy_config_aneg(phydev); +} + static int ip101a_g_ack_interrupt(struct phy_device *phydev) { int err = phy_read(phydev, IP101A_G_IRQ_CONF_STATUS); @@ -474,6 +563,8 @@ static struct phy_driver icplus_driver[] = { .config_intr = ip101a_g_config_intr, .handle_interrupt = ip101a_g_handle_interrupt, .config_init = ip101a_g_config_init, + .config_aneg = ip101a_g_config_aneg, + .read_status = ip101a_g_read_status, .read_page = ip101a_g_read_page, .write_page = ip101a_g_write_page, .soft_reset = genphy_soft_reset,