From patchwork Fri May 24 08:20:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1104691 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="MZ8NDQUN"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 459K88390cz9s7h for ; Fri, 24 May 2019 18:21:12 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389478AbfEXIUi (ORCPT ); Fri, 24 May 2019 04:20:38 -0400 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102]:35520 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389245AbfEXIUh (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 57FAAC0111; 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=DK01hEvtlCe9jWvld2dQ+H24fyVE/McsxQGGm9vTecw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=MZ8NDQUNVOStgj9wz4KTOO9obh0pzm5z0OGfuegT4tcKMhB7G0jSTRBCcLuKPfiky oqXJCfwSGiU8gEuV7Iq0nuyqSVPBYHxnjPS1FYOSgvdQ8APo8HpiuRy9vkXN704Yyj WXVTT65FRZi/CS+TlpfSeXFdddWCjfcDiuLE6DklYTYFK+q8kNRtCmiqSIYw7aaSIi xO03qEZLb8CCq3cEpbhSd4DQf0Azt8TOtK4zrrDMRRCuC1vlEvI+/ijYf/rrdQEO4V 50WhFiy/pRgI0Hz4tghMfQsMltP9Ks84sVjVutJzEb8liTiKHr4lx0lQyCN3glYUNG flwSTIzOw9MAQ== Received: from de02.synopsys.com (germany.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 68691A00A8; 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 841463FAF3; 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 03/18] net: stmmac: dwmac1000: Add MAC loopback support Date: Fri, 24 May 2019 10:20:11 +0200 Message-Id: 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 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)