From patchwork Sun Apr 28 06:30:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 10920705 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E5DE792A for ; Sun, 28 Apr 2019 06:30:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D2F9028AA2 for ; Sun, 28 Apr 2019 06:30:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C6C2828AAB; Sun, 28 Apr 2019 06:30:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id EF19A28AA2 for ; Sun, 28 Apr 2019 06:30:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=U1mxEQAS2E5Jwj8ixKDwYNnLDQESaNspNufYTpp/sy4=; b=IvmzlHUqUhmTT8 dtcpS7pZYxo78QXddJU5cPsvMiZX0GdK9uXvasVp7DsLFlOgeXm3EM3kCsm5aK/JgqNA2pXI0W7bF RZiw1RbeCatrY+NUppp172IOkwuGbTimiHK/aHo2JxOereIjMaTu4FeDjQJyq4hnt65++Vzg3uFyn 1kd9VZkLIeazQVCcqqBSbuN/9z0WM7oUd9/WHeGJOML+3obJt7YDoeKacPlpucADTqHHoToDId1As E+Ql8JkQu1WTQ+JPuV07NPQ5+a7kH8hFeaZVylTvA551d7knLoa4zDfRsqY1Rbji/Bpg1emn728PB h5Q1YLONyzTxtQ2mocjA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hKdKy-0002P3-DN; Sun, 28 Apr 2019 06:30:56 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hKdKv-0002NY-3E; Sun, 28 Apr 2019 06:30:54 +0000 X-UUID: 30a359b4568c4eaeaa3df55f988f469f-20190427 X-UUID: 30a359b4568c4eaeaa3df55f988f469f-20190427 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1845008078; Sat, 27 Apr 2019 22:30:46 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 27 Apr 2019 23:30:45 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 28 Apr 2019 14:30:32 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sun, 28 Apr 2019 14:30:31 +0800 From: Biao Huang To: Jose Abreu , Subject: [PATCH 6/6] stmmac: dwmac-mediatek: modify csr_clk value to fix mdio read/write fail Date: Sun, 28 Apr 2019 14:30:09 +0800 Message-ID: <1556433009-25759-7-git-send-email-biao.huang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1556433009-25759-1-git-send-email-biao.huang@mediatek.com> References: <1556433009-25759-1-git-send-email-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190427_233053_149351_72F9626C X-CRM114-Status: UNSURE ( 9.77 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianguo.zhang@mediatek.com, Alexandre Torgue , biao.huang@mediatek.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yt.shen@mediatek.com, linux-mediatek@lists.infradead.org, Maxime Coquelin , Matthias Brugger , Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The frequency of csr clock is 66.5MHz, so the csr_clk value should be 0. Modify the csr_clk value to fix mdio read/write fail issue. Signed-off-by: Biao Huang --- .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c index bf25629..6b12d0f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c @@ -346,8 +346,8 @@ static int mediatek_dwmac_probe(struct platform_device *pdev) return PTR_ERR(plat_dat); plat_dat->interface = priv_plat->phy_mode; - /* clk_csr_i = 250-300MHz & MDC = clk_csr_i/124 */ - plat_dat->clk_csr = 5; + /* clk_csr_i = 60-100MHz & MDC = clk_csr_i/42 */ + plat_dat->clk_csr = 0; plat_dat->has_gmac4 = 1; plat_dat->has_gmac = 0; plat_dat->pmt = 0;