From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 76CB7C04AAD for ; Wed, 8 May 2019 07:52:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 476CC20644 for ; Wed, 8 May 2019 07:52:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="UuvfZx38" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726522AbfEHHva (ORCPT ); Wed, 8 May 2019 03:51:30 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.61.142]:53830 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725860AbfEHHv3 (ORCPT ); Wed, 8 May 2019 03:51:29 -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 A0228C00FF; Wed, 8 May 2019 07:51:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1557301882; bh=DK01hEvtlCe9jWvld2dQ+H24fyVE/McsxQGGm9vTecw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=UuvfZx38FdPYCmObPbXYqc0ZkqyUgMDUiZhnTqbyXT+e3q5HwG0uXAX9ln3NtwDph sKIpi1pPLGnquNiNHTJnRuHgGGeytoXyXggNzYgDe6nIbbtCaY29Wga+eXxFEcBuYD zVi22TlH6x/JHOSsWECK71WzJf8k70tdrGJ1qhwU6sjY7QSaoIVZdWTpW2k4jZ4cy8 zI4sg1MkV2aiXZvRavL/G+0+pYFzX8ZEJD6vH79bg2tTUY1jWoodRnO/iJTPmwgixk UrZlnja3TOX3zHXQP4v8jcxDDv2akd6okvKfEhh6ENxYUGefwHwAlc7IyrU9DmOd1z iMQLv5uYiAeDQ== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 55FA8A02DB; Wed, 8 May 2019 07:51:28 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 790363D51D; Wed, 8 May 2019 09:51:27 +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 Subject: [PATCH net-next 03/11] net: stmmac: dwmac1000: Add MAC loopback support Date: Wed, 8 May 2019 09:51:03 +0200 Message-Id: <66de0c906104d6c4d1f641e366e0e80fc2e3d364.1557300602.git.joabreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In preparation for the addition of stmmac selftests we implement the MAC loopback callback in dwmac1000 core. Signed-off-by: Jose Abreu Cc: Joao Pinto Cc: David S. Miller Cc: Giuseppe Cavallaro Cc: Alexandre Torgue --- drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index 0877bde6e860..398303c783f4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -499,6 +499,18 @@ static void dwmac1000_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x, x->mac_gmii_rx_proto_engine++; } +static void dwmac1000_set_mac_loopback(void __iomem *ioaddr, bool enable) +{ + u32 value = readl(ioaddr + GMAC_CONTROL); + + if (enable) + value |= GMAC_CONTROL_LM; + else + value &= ~GMAC_CONTROL_LM; + + writel(value, ioaddr + GMAC_CONTROL); +} + const struct stmmac_ops dwmac1000_ops = { .core_init = dwmac1000_core_init, .set_mac = stmmac_set_mac, @@ -518,6 +530,7 @@ const struct stmmac_ops dwmac1000_ops = { .pcs_ctrl_ane = dwmac1000_ctrl_ane, .pcs_rane = dwmac1000_rane, .pcs_get_adv_lp = dwmac1000_get_adv_lp, + .set_mac_loopback = dwmac1000_set_mac_loopback, }; int dwmac1000_setup(struct stmmac_priv *priv) -- 2.7.4