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_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 1A934C04AB7 for ; Tue, 14 May 2019 15:46:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E21CB2086A for ; Tue, 14 May 2019 15:46:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="mYl03PcJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726562AbfENPpn (ORCPT ); Tue, 14 May 2019 11:45:43 -0400 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102]:36276 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726025AbfENPpl (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 99A37C0A74; Tue, 14 May 2019 15:45:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1557848745; bh=pP5DR9i3AWyLzsZCvhK9gxgeY8E2DkEss6ulcg1/dFg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=mYl03PcJst9eMfQeZ9fqLhHg1ejYXaZZD3VImvJ/hOKM93BysNw5XsW5KeZzfRcOM Z2RrY1GR2aPUiIuwFC5W9QbBD1mdMDwH4GlLou4IwwAe3UvHSHw33RaGgNXaxxSeiX yPChJajopiMN0Ob2Zmx1pCqfCddKmyzT4PgAT8LhbQW82Bnv+NaMxKe2SeG24ET2wb Gfoj7wP2S2BtJe7NASwpw0y1tXyqE6+WVdI9F4jljAIJkhlBRIT7GOfLWsPood+9Fk T3IpQxOIhcaET4LHn/Qosr6dXhY6p2XuLGT+i7pXKgwOMVrfP4NXAsger5rVv964nN 2DvbU3UMc0kjg== Received: from de02.synopsys.com (de02.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 10F62A0241; Tue, 14 May 2019 15:45:40 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 42B553EA18; 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 03/14] net: stmmac: dwmac1000: Add MAC loopback support Date: Tue, 14 May 2019 17:45:25 +0200 Message-Id: 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