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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 C7E70C282C0 for ; Fri, 25 Jan 2019 12:55:44 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 965D4218B0 for ; Fri, 25 Jan 2019 12:55:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="oIm6Bmf/"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="WOIkEhJL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 965D4218B0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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=/Fc6pZMPsbyhgZ7AXTWE0c28mxe8WrvB4eXRfgfxZK0=; b=oIm6Bmf/F9ODer a4TxbSnz+2AILrM84lYkUf7tpyo5aBJgEe6Dqdyg81OdbnKPuPeyQYxwbDiePMaT3J4fTb5v3nLvM /l6mn3IPLB2au7uh8Rrp5bqpzRhWhPo3u2avpUIZ1mvHMAcYsk+rK05Schvo7CjXgRd6aumX3SU95 Wcj9qJynDYPR82ZBRILOl384LjXlZIlOZ9EtMug9GYRS9/8A+UhFt5AF7zFQeYDnjDlfPR4tI8eMR 6U+lI+Wo5UO0Xc2q2W96yl0ZFxhPowmVw+MmjVGvvqSiVE1rgnsGCrFn41eABgFZ/3mq94Q06ATFt O+Ijm6lfLDfHQWnaEMQQ==; 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 1gn11L-0004l8-I0; Fri, 25 Jan 2019 12:55:43 +0000 Received: from mail-wm1-x344.google.com ([2a00:1450:4864:20::344]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gn11I-0004k4-7B for linux-arm-kernel@lists.infradead.org; Fri, 25 Jan 2019 12:55:41 +0000 Received: by mail-wm1-x344.google.com with SMTP id r24so4749586wmh.0 for ; Fri, 25 Jan 2019 04:55:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=juLI+9H8NyMB04BIfuKnL7i1P90CozxB4yuKvoPTnoY=; b=WOIkEhJLyKhE6FO4EZzh/pxzNtu0kbamQEg6FLM2vJ5VsC9KN+M8pOWiziFgzpril5 JE75cHtar7/Y6TA6Cky06ORiU9CsBnUkN+LbpdnElckzlZgAO63ytYPRl2J/bi8EimZ2 P78dsa4aKBVeyPWxZIptP8LsVhUWzo211PJiQ4CWiUozDCWskvnnz7pZ0DSwUm7vL6rY dC6umm98RhGQFJygwnUymWtSfuYLREsK0Hb7YHObrL9f45x1G5cbgjTalb1Ft5Aof+57 NlyLr2KwwT2/7825cBZuN2bLkQbRZg2qrq1cf5entgzn+uIuYWFRaJKvYrr1VdBG8rJU vTfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=juLI+9H8NyMB04BIfuKnL7i1P90CozxB4yuKvoPTnoY=; b=jXkOyj8IJtiKnNWs0L/bmH6Bbl56OkdyLgi1j5YTbYcmWRaWj4PGt1YtfDz2mqw7OM RHocHSnGG5iAEOFM42k6H8jyGFFkPf2a5OcoER7AYYR7uwwCkH0Uwqver/h190fJ1ftv f2X/hxJgVKO3kpH3nTWxvRGkweJOSeCqUxDjWwG1m/CGEkMBpAq6UWbRCYuY90sH0x09 fLX2/50s4lwKajTx2DvQrLY/rl4LlcstcwYlSKqh5xku+9fr+9HKwMPsUjolxwFw5TBR B7NG9koKC2DOq6b7jHtVl4+EBaFChq5cqfM8cVn8o9KZahop5/h1TyezXnpXi0nyRb8q Q1eQ== X-Gm-Message-State: AJcUukdP3BEyaBR6nYbOhqthJArU/64AzQdFSPKe6sN7OoAHZan/DMOC x3ZzFQLJXe+u6V9gfHI4A7kyYA== X-Google-Smtp-Source: ALg8bN66svBeQC9r9GjiUKIkMpICRdGu5E4GApvSDIZHqXZwDkURxD3z+EDFIhTmjfUAuwTLtk+c4Q== X-Received: by 2002:a1c:b455:: with SMTP id d82mr7093211wmf.78.1548420938302; Fri, 25 Jan 2019 04:55:38 -0800 (PST) Received: from xps.expressvpn ([2a00:23c4:f7a1:ce00:5105:4b7b:c922:7c6]) by smtp.gmail.com with ESMTPSA id w80sm93057860wme.38.2019.01.25.04.55.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 25 Jan 2019 04:55:37 -0800 (PST) From: Carlo Caione To: andrew@lunn.ch, f.fainelli@gmail.com, hkallweit1@gmail.com, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, fabio.estevam@nxp.com, linux-imx@nxp.com, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, aisheng.dong@nxp.com, abailon@baylibre.com Subject: [PATCH 1/3] net: phy: at803x: Introduce quirk to disable SmartEEE Date: Fri, 25 Jan 2019 12:55:11 +0000 Message-Id: <20190125125513.23656-2-ccaione@baylibre.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190125125513.23656-1-ccaione@baylibre.com> References: <20190125125513.23656-1-ccaione@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190125_045540_255059_926D9725 X-CRM114-Status: GOOD ( 12.79 ) 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: Carlo Caione Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org The proprietary SmartEEE mode makes the PHY entering a sleep mode after a configurable idle time. It does this without LPI signals coming from MAC. Since this is a configurable behavior and it is known to cause issues add a way to disable it using a custom quirk. Signed-off-by: Carlo Caione --- drivers/net/phy/at803x.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c index f9432d053a22..509cd7a4f7eb 100644 --- a/drivers/net/phy/at803x.c +++ b/drivers/net/phy/at803x.c @@ -38,12 +38,14 @@ #define AT803X_DEVICE_ADDR 0x03 #define AT803X_LOC_MAC_ADDR_0_15_OFFSET 0x804C #define AT803X_LOC_MAC_ADDR_16_31_OFFSET 0x804B +#define AT803X_SMARTEEE_CTL3_OFFSET 0x805D #define AT803X_LOC_MAC_ADDR_32_47_OFFSET 0x804A #define AT803X_MMD_ACCESS_CONTROL 0x0D #define AT803X_MMD_ACCESS_CONTROL_DATA 0x0E #define AT803X_FUNC_DATA 0x4003 #define AT803X_REG_CHIP_CONFIG 0x1f #define AT803X_BT_BX_REG_SEL 0x8000 +#define AT803X_SMARTEEE_DISABLED_VAL 0x1000 #define AT803X_DEBUG_ADDR 0x1D #define AT803X_DEBUG_DATA 0x1E @@ -65,12 +67,15 @@ #define ATH8035_PHY_ID 0x004dd072 #define AT803X_PHY_ID_MASK 0xffffffef +#define AT803X_SMARTEEE_FEATURE_DISABLE BIT(1) + MODULE_DESCRIPTION("Atheros 803x PHY driver"); MODULE_AUTHOR("Matus Ujhelyi"); MODULE_LICENSE("GPL"); struct at803x_priv { bool phy_reset:1; + u32 quirks; }; struct at803x_context { @@ -210,6 +215,13 @@ static void at803x_get_wol(struct phy_device *phydev, wol->wolopts |= WAKE_MAGIC; } +static int at803x_disable_smarteee(struct phy_device *phydev) +{ + return phy_write_mmd(phydev, AT803X_DEVICE_ADDR, + AT803X_SMARTEEE_CTL3_OFFSET, + AT803X_SMARTEEE_DISABLED_VAL); +} + static int at803x_suspend(struct phy_device *phydev) { int value; @@ -242,6 +254,9 @@ static int at803x_probe(struct phy_device *phydev) if (!priv) return -ENOMEM; + if (of_property_read_bool(dev->of_node, "at803x,smarteee-disabled")) + priv->quirks |= AT803X_SMARTEEE_FEATURE_DISABLE; + phydev->priv = priv; return 0; @@ -249,6 +264,7 @@ static int at803x_probe(struct phy_device *phydev) static int at803x_config_init(struct phy_device *phydev) { + struct at803x_priv *priv = phydev->priv; int ret; ret = genphy_config_init(phydev); @@ -269,6 +285,12 @@ static int at803x_config_init(struct phy_device *phydev) return ret; } + if (priv->quirks & AT803X_SMARTEEE_FEATURE_DISABLE) { + ret = at803x_disable_smarteee(phydev); + if (ret < 0) + return ret; + } + return 0; } -- 2.19.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel