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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B463C433FE for ; Sun, 24 Oct 2021 08:28:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32D3960241 for ; Sun, 24 Oct 2021 08:28:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231781AbhJXIbK (ORCPT ); Sun, 24 Oct 2021 04:31:10 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:39298 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231739AbhJXIas (ORCPT ); Sun, 24 Oct 2021 04:30:48 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1635064108; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=VvWNLqPUD/ffsqcY9IXsMuvidL/zUK3rPrlUhC0hWyU=; b=Xjdoz08De90xMMM7QfZ1ji115KUf1tyfROFnspb1fRYeUhDaH6b2khwb0BpvUottSRCYpgE2 2szDmj1qZfSmHassgKWXOoiTfUziAKEtKk9Pv6rpz0C5okvuhk26/Ztz3Wb6erLO8ElwUtCC b3jr5ygnXEVXsmLhePBNakN/clI= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyJiZjI2MiIsICJuZXRkZXZAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-west-2.postgun.com with SMTP id 61751922321f240051d4bff0 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Sun, 24 Oct 2021 08:28:18 GMT Sender: luoj=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id DC75EC4361A; Sun, 24 Oct 2021 08:28:17 +0000 (UTC) Received: from akronite-sh-dev02.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: luoj) by smtp.codeaurora.org (Postfix) with ESMTPSA id EC9C1C4338F; Sun, 24 Oct 2021 08:28:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org EC9C1C4338F Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: Luo Jie To: andrew@lunn.ch, hkallweit1@gmail.com, linux@armlinux.org.uk, davem@davemloft.net, kuba@kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, sricharan@codeaurora.org, Luo Jie Subject: [PATCH v7 12/14] net: phy: add qca8081 soft_reset and enable master/slave seed Date: Sun, 24 Oct 2021 16:27:36 +0800 Message-Id: <20211024082738.849-13-luoj@codeaurora.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211024082738.849-1-luoj@codeaurora.org> References: <20211024082738.849-1-luoj@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org qca8081 phy is a single port phy, configure phy the lower seed value to make it linked as slave mode easier. Signed-off-by: Luo Jie --- drivers/net/phy/at803x.c | 48 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c index da710523b7c4..1418db4f2091 100644 --- a/drivers/net/phy/at803x.c +++ b/drivers/net/phy/at803x.c @@ -223,6 +223,12 @@ #define QCA808X_PHY_MMD3_DEBUG_6 0xa011 #define QCA808X_MMD3_DEBUG_6_VALUE 0x5f85 +/* master/slave seed config */ +#define QCA808X_PHY_DEBUG_LOCAL_SEED 9 +#define QCA808X_MASTER_SLAVE_SEED_ENABLE BIT(1) +#define QCA808X_MASTER_SLAVE_SEED_CFG GENMASK(12, 2) +#define QCA808X_MASTER_SLAVE_SEED_RANGE 0x32 + MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver"); MODULE_AUTHOR("Matus Ujhelyi"); MODULE_LICENSE("GPL"); @@ -1569,6 +1575,26 @@ static int qca808x_phy_fast_retrain_config(struct phy_device *phydev) return 0; } +static int qca808x_phy_ms_random_seed_set(struct phy_device *phydev) +{ + u16 seed_value = (prandom_u32() % QCA808X_MASTER_SLAVE_SEED_RANGE); + + return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_LOCAL_SEED, + QCA808X_MASTER_SLAVE_SEED_CFG, + FIELD_PREP(QCA808X_MASTER_SLAVE_SEED_CFG, seed_value)); +} + +static int qca808x_phy_ms_seed_enable(struct phy_device *phydev, bool enable) +{ + u16 seed_enable = 0; + + if (enable) + seed_enable = QCA808X_MASTER_SLAVE_SEED_ENABLE; + + return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_LOCAL_SEED, + QCA808X_MASTER_SLAVE_SEED_ENABLE, seed_enable); +} + static int qca808x_config_init(struct phy_device *phydev) { int ret; @@ -1590,6 +1616,16 @@ static int qca808x_config_init(struct phy_device *phydev) if (ret) return ret; + /* Configure lower ramdom seed to make phy linked as slave mode */ + ret = qca808x_phy_ms_random_seed_set(phydev); + if (ret) + return ret; + + /* Enable seed */ + ret = qca808x_phy_ms_seed_enable(phydev, true); + if (ret) + return ret; + /* Configure adc threshold as 100mv for the link 10M */ return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_ADC_THRESHOLD, QCA808X_ADC_THRESHOLD_MASK, QCA808X_ADC_THRESHOLD_100MV); @@ -1622,6 +1658,17 @@ static int qca808x_read_status(struct phy_device *phydev) return 0; } +static int qca808x_soft_reset(struct phy_device *phydev) +{ + int ret; + + ret = genphy_soft_reset(phydev); + if (ret < 0) + return ret; + + return qca808x_phy_ms_seed_enable(phydev, true); +} + static struct phy_driver at803x_driver[] = { { /* Qualcomm Atheros AR8035 */ @@ -1797,6 +1844,7 @@ static struct phy_driver at803x_driver[] = { .resume = genphy_resume, .read_status = qca808x_read_status, .config_init = qca808x_config_init, + .soft_reset = qca808x_soft_reset, }, }; module_phy_driver(at803x_driver); -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project