From patchwork Fri May 24 08:20:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1104690 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="Bae3o2bv"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 459K862Nz9z9sBV for ; Fri, 24 May 2019 18:21:10 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389515AbfEXIUj (ORCPT ); Fri, 24 May 2019 04:20:39 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.47.102]:35506 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389234AbfEXIUh (ORCPT ); Fri, 24 May 2019 04:20:37 -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 5BC13C0120; Fri, 24 May 2019 08:20:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1558686044; bh=/xA5D2KU4oFCZigXo3GxuD0B41696Ac9xBvAFVj5Z6Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=Bae3o2bvEw06Q0eF3S+tayz5A5GOShwub/DQkIW5skGo6YQJhVQ/5ncwfHv60dxch t6o1iOVJ+RkUQMy9LIvTEnoui4IjtjNQZvPsJjityLweTGeV5II2UxgbZ2eOiRS0Vg +/YlOK3vfU5+id/DHcyU1D03FKwniClTZ/qoN0Ym4lMLQTsvkPDKlUsZXaVOz9xiNi 8O+tLL8Pzv1TXdYBLUp+MYf3dyGRRk/8WE/E/wNkw1pWbZCVQg0uMSDBLRlduEX8EY LGfMspXzpoSQ6e3GjVGgSfc5rBrCl/xYSQxZSYym4lKlD7gWhBREbkAnuiBS2ixYeJ 9THD+UecDtoOw== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 77A62A00AC; Fri, 24 May 2019 08:20:36 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 730673FAF0; Fri, 24 May 2019 10:20:35 +0200 (CEST) From: Jose Abreu To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: Jose Abreu , Joao Pinto , "David S . Miller" , Giuseppe Cavallaro , Alexandre Torgue Subject: [PATCH net-next v2 02/18] net: stmmac: dwmac100: Add MAC loopback support Date: Fri, 24 May 2019 10:20:10 +0200 Message-Id: <201a716d054b8f474a73efd18c50e7c53e1e44c7.1558685827.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 --- 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)