From nobody Tue Dec 16 16:43:06 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CCCAC25B6B for ; Thu, 26 Oct 2023 05:44:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234796AbjJZFor (ORCPT ); Thu, 26 Oct 2023 01:44:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344068AbjJZFoc (ORCPT ); Thu, 26 Oct 2023 01:44:32 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5765A1A2; Wed, 25 Oct 2023 22:44:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1698299064; x=1729835064; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=s4XlweU06/WjfxjbPFFYgx9tnnfQIqxKqZo14QClh4k=; b=jXH/Owlu8FHKyi8L+J2Gu9tL7qblx2ZsVYe96qT/992wt/1jETunbK3q jVPVtFKah/KG9fW6vqjVBiCcFJfjEKYeL3Adp2v55RSeVAfhmoVisXgmG Q3J18uSnWepTf8ePGjG2bbP2gMKqTKgVsqKURhA4aXu/cIp0DcjHQ0WSE jjHe7c9pMqrwRtoYse41Zs9fWMYptiBj4lWku1AKBA6OayZiWQbRL/qCY k2UB37jAej8dTPkXKuyavXYFIDgLJfQZK4TTzMWl0ssSpwYEYEXKQUuoD gdr5jtyaw6IMKErq3gEqrwLbhYWqR5yxr3HHQFfSFsx5ByvCfZ00aNoZg A==; X-CSE-ConnectionGUID: Uxd6NvfbRaGg4YfpXPM/Og== X-CSE-MsgGUID: ryL80tZOSGKD0wcqxcEsyg== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.03,253,1694761200"; d="scan'208";a="11210278" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 25 Oct 2023 22:44:22 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Wed, 25 Oct 2023 22:44:21 -0700 Received: from HYD-DK-UNGSW21.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Wed, 25 Oct 2023 22:44:18 -0700 From: Raju Lakkaraju To: CC: , , , , , , , Subject: [PATCH net-next V1] net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers Date: Thu, 26 Oct 2023 11:13:05 +0530 Message-ID: <20231026054305.336968-1-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add DW_2500BASEX case in xpcs_get_state( ) to update speed, duplex and pause Signed-off-by: Raju Lakkaraju --- Change List: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D V0 -> V1: - Remove the auto-negotiation check due to currently the DW_2500BASEX mod= e=20 doesn't imply any auto-negotiation=20 drivers/net/pcs/pcs-xpcs.c | 29 +++++++++++++++++++++++++++++ drivers/net/pcs/pcs-xpcs.h | 2 ++ 2 files changed, 31 insertions(+) diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c index 4dbc21f604f2..f5e1dcac9e3e 100644 --- a/drivers/net/pcs/pcs-xpcs.c +++ b/drivers/net/pcs/pcs-xpcs.c @@ -1090,6 +1090,28 @@ static int xpcs_get_state_c37_1000basex(struct dw_xp= cs *xpcs, return 0; } =20 +static int xpcs_get_state_2500basex(struct dw_xpcs *xpcs, + struct phylink_link_state *state) +{ + int sts; + + sts =3D xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_STS); + + state->link =3D !!(sts & DW_VR_MII_MMD_STS_LINK_STS); + if (!state->link) { + state->speed =3D SPEED_UNKNOWN; + state->pause =3D MLO_PAUSE_NONE; + state->duplex =3D DUPLEX_UNKNOWN; + return 0; + } + + state->speed =3D SPEED_2500; + state->pause |=3D MLO_PAUSE_TX | MLO_PAUSE_RX; + state->duplex =3D DUPLEX_FULL; + + return 0; +} + static void xpcs_get_state(struct phylink_pcs *pcs, struct phylink_link_state *state) { @@ -1127,6 +1149,13 @@ static void xpcs_get_state(struct phylink_pcs *pcs, ERR_PTR(ret)); } break; + case DW_2500BASEX: + ret =3D xpcs_get_state_2500basex(xpcs, state); + if (ret) { + pr_err("xpcs_get_state_2500basex returned %pe\n", + ERR_PTR(ret)); + } + break; default: return; } diff --git a/drivers/net/pcs/pcs-xpcs.h b/drivers/net/pcs/pcs-xpcs.h index 39a90417e535..96c36b32ca99 100644 --- a/drivers/net/pcs/pcs-xpcs.h +++ b/drivers/net/pcs/pcs-xpcs.h @@ -55,6 +55,8 @@ /* Clause 37 Defines */ /* VR MII MMD registers offsets */ #define DW_VR_MII_MMD_CTRL 0x0000 +#define DW_VR_MII_MMD_STS 0x0001 +#define DW_VR_MII_MMD_STS_LINK_STS BIT(2) #define DW_VR_MII_DIG_CTRL1 0x8000 #define DW_VR_MII_AN_CTRL 0x8001 #define DW_VR_MII_AN_INTR_STS 0x8002 --=20 2.34.1