From patchwork Tue May 14 15:45:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1099561 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=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="HPhNvCZi"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 453MV75s5kz9sBV for ; Wed, 15 May 2019 01:46:07 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726563AbfENPpn (ORCPT ); Tue, 14 May 2019 11:45:43 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.61.142]:35770 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726044AbfENPpl (ORCPT ); Tue, 14 May 2019 11:45:41 -0400 Received: from mailhost.synopsys.com (dc2-mailhost2.synopsys.com [10.12.135.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 59AF1C0174; Tue, 14 May 2019 15:45:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1557848731; bh=Ky3auTImAfe37zrIkXpYgTd4Sk3t6wEQs0RE5Rcse8o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=HPhNvCZiExgGYqGUf6fV6Zhe7k4V7e9KGiMNj4lLHxmp3KlqKOngpSyFxj24/yPQg T2vpxJOhD768iSiNs28K0Xm33Nsf3vH8wwotw6AKzW/R93NqN5F0dzTaRsiTO5rBHE wEoKeizaqLSea5A9vwWNL2Szf/3VPKk+YZAhhagfUe+AyqdaAvzWZTxSn4ex7UWOcM K8iqlXrVcA93JU5cvFoynz2xZ8xI+KDcWHOfJz0ipq6SEoAUtFZECxSAC9YVmQlzJI ndcDEfBWTglM7rnQ0bDMvpTGuXlRJYteGhvjhAPJV77G4FTswQbXlOEFYoskDh77SO QkvKrHXjvNM2w== Received: from de02.synopsys.com (de02.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 10FABA0242; Tue, 14 May 2019 15:45:39 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 2F0D23EA14; Tue, 14 May 2019 17:45:39 +0200 (CEST) From: Jose Abreu To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jose Abreu , Joao Pinto , "David S . Miller" , Giuseppe Cavallaro , Alexandre Torgue , Corentin Labbe Subject: [RFC net-next v2 02/14] net: stmmac: dwmac100: Add MAC loopback support Date: Tue, 14 May 2019 17:45:24 +0200 Message-Id: <74f003170161809eb914504c18311eaf7b0a617a.1557848472.git.joabreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In preparation for the addition of stmmac selftests we implement the MAC loopback callback in dwmac100 core. Signed-off-by: Jose Abreu Cc: Joao Pinto Cc: David S. Miller Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Corentin Labbe --- drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c index b735143987e1..d621b5189c41 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c @@ -160,6 +160,18 @@ static void dwmac100_pmt(struct mac_device_info *hw, unsigned long mode) return; } +static void dwmac100_set_mac_loopback(void __iomem *ioaddr, bool enable) +{ + u32 value = readl(ioaddr + MAC_CONTROL); + + if (enable) + value |= MAC_CONTROL_OM; + else + value &= ~MAC_CONTROL_OM; + + writel(value, ioaddr + MAC_CONTROL); +} + const struct stmmac_ops dwmac100_ops = { .core_init = dwmac100_core_init, .set_mac = stmmac_set_mac, @@ -171,6 +183,7 @@ const struct stmmac_ops dwmac100_ops = { .pmt = dwmac100_pmt, .set_umac_addr = dwmac100_set_umac_addr, .get_umac_addr = dwmac100_get_umac_addr, + .set_mac_loopback = dwmac100_set_mac_loopback, }; int dwmac100_setup(struct stmmac_priv *priv)