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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 460CCC282DE for ; Thu, 23 May 2019 07:39:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 095112075E for ; Thu, 23 May 2019 07:39:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="mZSR9f3k" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730007AbfEWHha (ORCPT ); Thu, 23 May 2019 03:37:30 -0400 Received: from dc2-smtprelay2.synopsys.com ([198.182.61.142]:46686 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726309AbfEWHh3 (ORCPT ); Thu, 23 May 2019 03:37:29 -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 831E3C0095; Thu, 23 May 2019 07:37:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1558597035; bh=pP5DR9i3AWyLzsZCvhK9gxgeY8E2DkEss6ulcg1/dFg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=mZSR9f3kiHtjQIrqbVtyFlfUrtPrp5E2sP7EgKrfWx5qY5Oi3ix7HXRI0nhFNoeIe dqhHiI7K70UopjKObihk3RjtWqbcywS1iN9bphjIsF9/9oDwy46j56wahXbkHUIdAC GcHEWSOCYDALcEwNuIXqGoguwiwNmpKkbAWFX4i0zDHWmkK66YHdkr+tzPa9ZcDqcD Reab0W6uycxrIRDc6RgJc7QY3lHlGtnu1obv7kzYtzlDcgp4utVdl74WqURBF3aBOe aXSd+ezEvuhN4I8BUqr/Wbq+nxgosCz52VfsLE1RAlnno23tf7hEq9+tvYig1SsVCI xxFz3l4XCuLSA== Received: from de02.synopsys.com (de02.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id E625BA00A0; Thu, 23 May 2019 07:37:28 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 172153D93B; Thu, 23 May 2019 09:37:28 +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 , Corentin Labbe Subject: [PATCH net-next 03/18] net: stmmac: dwmac1000: Add MAC loopback support Date: Thu, 23 May 2019 09:36:53 +0200 Message-Id: <2d2987abead97d9ce2ca82cdf543bce06bb63b1d.1558596600.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 Cc: Corentin Labbe --- 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