From patchwork Fri Feb 5 10:39:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King \(Oracle\)" X-Patchwork-Id: 377453 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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 8B9FAC433DB for ; Fri, 5 Feb 2021 10:43:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4347B64E33 for ; Fri, 5 Feb 2021 10:43:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231575AbhBEKm5 (ORCPT ); Fri, 5 Feb 2021 05:42:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231367AbhBEKkl (ORCPT ); Fri, 5 Feb 2021 05:40:41 -0500 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54CD4C0613D6 for ; Fri, 5 Feb 2021 02:40:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=nSHYMhvqOphCoHyQ9R0vTKHFP/F44ZYd0zzgjL3/cyk=; b=QywcD7WNEDcqV31LWonHUaWx/o E6edlj8RZ5wyQyuzVwDWx8SKQWvDoalCcggboJiNXl1sfAwj+BRlR2ojJMCD5e6qlmvr7GfOlu0VJ eKXaEKVZNjQV9VR/HzjNGffIFMtL8ZciAugAVit4Ii86hhjBHQTLMhPVYbJvHX/Az8qVt2p95vtO7 ovK8aHqdODTkw+MOIKoPnVVcPQE37s61kxmd4ssSbXtn6D/BwBRWMIbNMfRbloadsHGsOcFZQhCq2 Ot1/n9516zYvS47cvHyvFhY/jwQx6ZsqB0nBGYzVHbT15HVI2f8AxgXPwcEKeeT/3BoXkmEI6z2oh R+NKDFmw==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:49110 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l7yWt-0007eO-EU; Fri, 05 Feb 2021 10:39:59 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1l7yWt-0006oB-6j; Fri, 05 Feb 2021 10:39:59 +0000 In-Reply-To: <20210205103859.GH1463@shell.armlinux.org.uk> References: <20210205103859.GH1463@shell.armlinux.org.uk> From: Russell King To: Ioana Ciornei , Ioana Radulescu Cc: Andrew Lunn , Heiner Kallweit , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org Subject: [PATCH net-next v2 1/3] net: pcs: add pcs-lynx 1000BASE-X support MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Fri, 05 Feb 2021 10:39:59 +0000 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add support for 1000BASE-X to pcs-lynx for the LX2160A. This commit prepares the ground work for allowing 1G fiber connections to be used with DPAA2 on the SolidRun CEX7 platforms. Reviewed-by: Ioana Ciornei Signed-off-by: Russell King --- drivers/net/pcs/pcs-lynx.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/net/pcs/pcs-lynx.c b/drivers/net/pcs/pcs-lynx.c index 62bb9272dcb2..af36cd647bf5 100644 --- a/drivers/net/pcs/pcs-lynx.c +++ b/drivers/net/pcs/pcs-lynx.c @@ -11,6 +11,7 @@ #define LINK_TIMER_VAL(ns) ((u32)((ns) / SGMII_CLOCK_PERIOD_NS)) #define SGMII_AN_LINK_TIMER_NS 1600000 /* defined by SGMII spec */ +#define IEEE8023_LINK_TIMER_NS 10000000 #define LINK_TIMER_LO 0x12 #define LINK_TIMER_HI 0x13 @@ -83,6 +84,7 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs, struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs); switch (state->interface) { + case PHY_INTERFACE_MODE_1000BASEX: case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: phylink_mii_c22_pcs_get_state(lynx->mdio, state); @@ -108,6 +110,30 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs, state->link, state->an_enabled, state->an_complete); } +static int lynx_pcs_config_1000basex(struct mdio_device *pcs, + unsigned int mode, + const unsigned long *advertising) +{ + struct mii_bus *bus = pcs->bus; + int addr = pcs->addr; + u32 link_timer; + int err; + + link_timer = LINK_TIMER_VAL(IEEE8023_LINK_TIMER_NS); + mdiobus_write(bus, addr, LINK_TIMER_LO, link_timer & 0xffff); + mdiobus_write(bus, addr, LINK_TIMER_HI, link_timer >> 16); + + err = mdiobus_modify(bus, addr, IF_MODE, + IF_MODE_SGMII_EN | IF_MODE_USE_SGMII_AN, + 0); + if (err) + return err; + + return phylink_mii_c22_pcs_config(pcs, mode, + PHY_INTERFACE_MODE_1000BASEX, + advertising); +} + static int lynx_pcs_config_sgmii(struct mdio_device *pcs, unsigned int mode, const unsigned long *advertising) { @@ -163,6 +189,8 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int mode, struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs); switch (ifmode) { + case PHY_INTERFACE_MODE_1000BASEX: + return lynx_pcs_config_1000basex(lynx->mdio, mode, advertising); case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: return lynx_pcs_config_sgmii(lynx->mdio, mode, advertising); @@ -185,6 +213,13 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int mode, return 0; } +static void lynx_pcs_an_restart(struct phylink_pcs *pcs) +{ + struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs); + + phylink_mii_c22_pcs_an_restart(lynx->mdio); +} + static void lynx_pcs_link_up_sgmii(struct mdio_device *pcs, unsigned int mode, int speed, int duplex) { @@ -290,6 +325,7 @@ static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode, static const struct phylink_pcs_ops lynx_pcs_phylink_ops = { .pcs_get_state = lynx_pcs_get_state, .pcs_config = lynx_pcs_config, + .pcs_an_restart = lynx_pcs_an_restart, .pcs_link_up = lynx_pcs_link_up, };