From patchwork Tue Apr 4 06:14:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddharth Vadapalli X-Patchwork-Id: 78865 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp2810704vqo; Mon, 3 Apr 2023 23:27:58 -0700 (PDT) X-Google-Smtp-Source: AKy350bO7Bxzn1vowLJG3TmVufXnfLEo5sPXcKmT32ey9f7gsqGnBPrp6/ZI0y30+kzqX3OCv46V X-Received: by 2002:a17:906:c08f:b0:8aa:33c4:87d5 with SMTP id f15-20020a170906c08f00b008aa33c487d5mr1172775ejz.10.1680589678330; Mon, 03 Apr 2023 23:27:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1680589678; cv=none; d=google.com; s=arc-20160816; b=IGFiLrheMv6hbbQKzYwpVTzRMloDlhihn1wQIivEZ+hTIdW5+XSZ0MHhjeGO38WIlj RQI8D2DQG5Qxm7lipqhMtJTtcr7FquX0Py067FziduuFh75xQ5UomkOtsJculGIcJa/o 5N7WiHIN/Yb84ljgYEI2uXHwi3jQftJMI/iDiSIIiJCN05qd3wpudmlaHPVoFIX5SAlL +aXX6AIkXYuMQXgdDMf90/FAx0WbOCvIwaSgcNZBIDHpHXc6AEOzcNvdrDGET/uH1OC4 52MiYq/klYhGMXedBZjc99UFoK/ZLst4YWQcw3gnPVXTkuNRFUgeDvkc3Qt9Ya6Od9Bd +e4w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=oiYnpf0FJyd0FMoc+imR4JcVlxxtPshVC23LbW5qrpM=; b=CbdjFjlxQVXyoXIDhAokz8lSNxcZodh0Tcc4exKsD8Vi67hTetlxk4CAQ70RjCnyBd 9GeHErprYMeWvgLpCte41gTGCULUZdEO58Z7qkozqq+xNK72Cp+vSaRNEM8/5sZ4QpHq Kfe89VFUMjNWRaq3jgmevXcbvut8TqwRfseplP44GuedF5wsYkmdROlfQC7trAH2/u99 cntJOQULTPOEwIRnlvsYp0lDsyiQHpM2rWOWspGer/eMnp1n21HaK7hM9G06Dn7qE/6f u5nVL3CtbwBOseGqwRgW9C2cAU7dXnmfu9HgewmdNRhuyJyqM1w4XVNaLaa6NqtRMLrg qfsw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=M1PufJHX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id s20-20020a170906bc5400b009332fd96debsi227487ejv.166.2023.04.03.23.27.35; Mon, 03 Apr 2023 23:27:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=M1PufJHX; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233740AbjDDGQK (ORCPT + 99 others); Tue, 4 Apr 2023 02:16:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233317AbjDDGQC (ORCPT ); Tue, 4 Apr 2023 02:16:02 -0400 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E6AA30F6; Mon, 3 Apr 2023 23:15:30 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 3346F6cH011935; Tue, 4 Apr 2023 01:15:06 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1680588907; bh=oiYnpf0FJyd0FMoc+imR4JcVlxxtPshVC23LbW5qrpM=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=M1PufJHXFpPHOJDJi20d8+oxzLkuNm9VIqFjDqbBcTfNI1UOrzIbQcIvPo2m1Rb0K DG5b7Z8yMU71TZ2YPeu1JOI2LAugJeZkyI46tLDHZ1AG8Xjtk0+lE5Ul41z3GKtA43 zpel0EBEdoErJFo9kqoaP8k7QDCXWxp1qwlulT08= Received: from DFLE106.ent.ti.com (dfle106.ent.ti.com [10.64.6.27]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 3346F64n064194 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 4 Apr 2023 01:15:06 -0500 Received: from DFLE110.ent.ti.com (10.64.6.31) by DFLE106.ent.ti.com (10.64.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Tue, 4 Apr 2023 01:15:06 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16 via Frontend Transport; Tue, 4 Apr 2023 01:15:06 -0500 Received: from uda0492258.dhcp.ti.com (ileaxei01-snat.itg.ti.com [10.180.69.5]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3346ExN8087499; Tue, 4 Apr 2023 01:15:03 -0500 From: Siddharth Vadapalli To: , , , , , CC: , , , , Subject: [PATCH net-next v3 1/3] net: ethernet: ti: am65-cpsw: Move mode specific config to mac_config() Date: Tue, 4 Apr 2023 11:44:57 +0530 Message-ID: <20230404061459.1100519-2-s-vadapalli@ti.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230404061459.1100519-1-s-vadapalli@ti.com> References: <20230404061459.1100519-1-s-vadapalli@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-2.5 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_PASS, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1762226002316011459?= X-GMAIL-MSGID: =?utf-8?q?1762226002316011459?= Move the interface mode specific configuration to the mac_config() callback am65_cpsw_nuss_mac_config(). Also, do not reset the MAC Control register on mac_link_down(). Only clear those bits that can possibly be set in mac_link_up(). Let the MAC remain in IDLE state after mac_link_down(). Bring it out of the IDLE state on mac_link_up(). Signed-off-by: Siddharth Vadapalli --- drivers/net/ethernet/ti/am65-cpsw-nuss.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index d17757ecbf42..99d18eb6bbe9 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -1506,9 +1506,13 @@ static void am65_cpsw_nuss_mac_config(struct phylink_config *config, unsigned in struct am65_cpsw_common *common = port->common; if (common->pdata.extra_modes & BIT(state->interface)) { - if (state->interface == PHY_INTERFACE_MODE_SGMII) + if (state->interface == PHY_INTERFACE_MODE_SGMII) { writel(ADVERTISE_SGMII, port->sgmii_base + AM65_CPSW_SGMII_MR_ADV_ABILITY_REG); + cpsw_sl_ctl_set(port->slave.mac_sl, CPSW_SL_CTL_EXT_EN); + } else { + cpsw_sl_ctl_clr(port->slave.mac_sl, CPSW_SL_CTL_EXT_EN); + } writel(AM65_CPSW_SGMII_CONTROL_MR_AN_ENABLE, port->sgmii_base + AM65_CPSW_SGMII_CONTROL_REG); @@ -1523,6 +1527,7 @@ static void am65_cpsw_nuss_mac_link_down(struct phylink_config *config, unsigned struct am65_cpsw_port *port = container_of(slave, struct am65_cpsw_port, slave); struct am65_cpsw_common *common = port->common; struct net_device *ndev = port->ndev; + u32 mac_control; int tmo; /* disable forwarding */ @@ -1534,7 +1539,14 @@ static void am65_cpsw_nuss_mac_link_down(struct phylink_config *config, unsigned dev_dbg(common->dev, "down msc_sl %08x tmo %d\n", cpsw_sl_reg_read(port->slave.mac_sl, CPSW_SL_MACSTATUS), tmo); - cpsw_sl_ctl_reset(port->slave.mac_sl); + /* All the bits that am65_cpsw_nuss_mac_link_up() can possibly set */ + mac_control = CPSW_SL_CTL_GMII_EN | CPSW_SL_CTL_GIG | CPSW_SL_CTL_IFCTL_A | + CPSW_SL_CTL_FULLDUPLEX | CPSW_SL_CTL_RX_FLOW_EN | CPSW_SL_CTL_TX_FLOW_EN; + /* If interface mode is RGMII, CPSW_SL_CTL_EXT_EN might have been set for 10 Mbps */ + if (phy_interface_mode_is_rgmii(interface)) + mac_control |= CPSW_SL_CTL_EXT_EN; + /* Only clear those bits that can be set by am65_cpsw_nuss_mac_link_up() */ + cpsw_sl_ctl_clr(port->slave.mac_sl, mac_control); am65_cpsw_qos_link_down(ndev); netif_tx_stop_all_queues(ndev); @@ -1551,10 +1563,12 @@ static void am65_cpsw_nuss_mac_link_up(struct phylink_config *config, struct phy u32 mac_control = CPSW_SL_CTL_GMII_EN; struct net_device *ndev = port->ndev; + /* Bring the port out of idle state */ + cpsw_sl_ctl_clr(port->slave.mac_sl, CPSW_SL_CTL_CMD_IDLE); + if (speed == SPEED_1000) mac_control |= CPSW_SL_CTL_GIG; - if (interface == PHY_INTERFACE_MODE_SGMII) - mac_control |= CPSW_SL_CTL_EXT_EN; + /* TODO: Verify whether in-band is necessary for 10 Mbps RGMII */ if (speed == SPEED_10 && phy_interface_mode_is_rgmii(interface)) /* Can be used with in band mode only */ mac_control |= CPSW_SL_CTL_EXT_EN;