From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0032230BB9B; Sat, 6 Jun 2026 05:42:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780724570; cv=none; b=nlmmkZw9HB8wACjy6f7YRRt6LvCnVm8M+YRjCdHer+w99nPnBaxfIJ+tPbBbu9Zoad1FdNIlF6NIjtDV5zpZ+1Rrg5CeEOnFtXND+bH7pafoxdB1rN9/U8GhyAfL3+Yqi24UsKx+ALwE4cqQLju4idHoEJyb9by424Zy2e2JhG8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780724570; c=relaxed/simple; bh=J4JrRV9ojip8LEr3T9oThVuqU5VjGkOkn3KxxZc/+iQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=iZWMTw57SphiXq0Vn5d4dGUOAG7q3K/lPhUO03c+X+T7RhmFMkVkuFs2Ft5URusnJhqUjCTC72op+KHASm9L3TZfCdVECtrRggPIEbN6RWVoV2RdRiYk36hPcHIXRHcDTrvol4/1WiZfAq1Xxz7NQV3t92FmanrXIRPOAlGZtHM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YvIZ7rjR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YvIZ7rjR" Received: by smtp.kernel.org (Postfix) with ESMTPS id D6637C2BCB0; Sat, 6 Jun 2026 05:42:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1780724569; bh=J4JrRV9ojip8LEr3T9oThVuqU5VjGkOkn3KxxZc/+iQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=YvIZ7rjRLtoqFBDpqTWWohcdWJgdkwOLjwBXFWuoiHz/uPMCUpwMwaax+bQNfkb8S dYyKJjaGT8/q2cHaE9eMdFn/3k4x4KmrdTbSsaXjyeKKJWWE0Eeop8NFl/Z6XaFJDR 2FcRdXMu1Lnz/s6vPGJ4/li74WLgWFLiI1Damc57tRlBDS2WeyokWHz5N0bR1bt8nE 8W17R0h/s/cFOsuMCNVlgBuVito3wJdsBiggd8M+AlUBC3deX5OgAcyl6uVT5y8N6d 08ZJUxCKDgk4B/3022cmajdx68idaXnvVf2JQsNqaew/hv2p/n7JjaxRpzX0z3h1Gj njbn/qd+HT4cw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD75DCD8C85; Sat, 6 Jun 2026 05:42:49 +0000 (UTC) From: Selvamani Rajagopal via B4 Relay Date: Fri, 05 Jun 2026 22:42:42 -0700 Subject: [PATCH net-next v4 11/16] net: phy: ncn26000: Enable enhanced noise immunity Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260605-s2500-mac-phy-support-v4-11-de0fbc13c6d8@onsemi.com> References: <20260605-s2500-mac-phy-support-v4-0-de0fbc13c6d8@onsemi.com> In-Reply-To: <20260605-s2500-mac-phy-support-v4-0-de0fbc13c6d8@onsemi.com> To: Andrew Lunn , Piergiorgio Beruto , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Parthiban Veerasooran , Selva Rajagopal , Richard Cochran , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Simon Horman , Jonathan Corbet , Shuah Khan Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, Jerry Ray , Selvamani Rajagopal X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1780724562; l=2396; i=Selvamani.Rajagopal@onsemi.com; s=20260531; h=from:subject:message-id; bh=0U1RzAHZSWzomZ4iVBpV8zjyjt3Pi1KvW4neKMCTNpc=; b=1oliSqsYP6VMqMDJ7KLkRxrP2fjGPoHIw/YJ2XwkDPeNajF3W1VPdq/B6Pv6tEQKzPh/YuQuU S1VEGIDbQY7DhqC52elqhmDqEIkjo91fRi/Muo3v2q9jbMqJ7iMplSZ X-Developer-Key: i=Selvamani.Rajagopal@onsemi.com; a=ed25519; pk=5QRdM0HS/LGWWcUZZ9hVfZ+qbPQGZCumcTXOiN7Fyug= X-Endpoint-Received: by B4 Relay for Selvamani.Rajagopal@onsemi.com/20260531 with auth_id=803 X-Original-From: Selvamani Rajagopal Reply-To: Selvamani.Rajagopal@onsemi.com From: Selvamani Rajagopal By setting ENI bit, noise immunity is improved and it is specifically meant for PLCA enabled nodes. Signed-off-by: Selvamani Rajagopal --- drivers/net/phy/ncn26000.c | 26 ++++++++++++++++++++++++-- 1 file changed, 24 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/ncn26000.c b/drivers/net/phy/ncn26000.c index 2c8601c3f94a..c3a34b2c524d 100644 --- a/drivers/net/phy/ncn26000.c +++ b/drivers/net/phy/ncn26000.c @@ -36,6 +36,10 @@ #define TO_TMR_DEFAULT 32 +#define NCN26000_REG_PHYCFG1 0x8001 +#define NCN26000_PHYCFG1_ENI BIT(7) +#define NCN26000_PHYCFG1_ENI_MASK BIT(7) + static int ncn26000_config_init(struct phy_device *phydev) { int ret = 0; @@ -106,6 +110,24 @@ static int ncn26000_read_status(struct phy_device *phydev) return 0; } +/* Intercept PLCA enable/disable request to + * set the proprietary, ENI mode accordingly + */ +static int ncn26000_c45_plca_set_cfg(struct phy_device *phydev, + const struct phy_plca_cfg *plca_cfg) +{ + int ret = genphy_c45_plca_set_cfg(phydev, plca_cfg); + u16 eni_cfg = 0; + + if (ret || plca_cfg->enabled < 0) + return ret; + + eni_cfg = (plca_cfg->enabled) ? NCN26000_PHYCFG1_ENI : 0; + return phy_modify_mmd(phydev, MDIO_MMD_VEND2, + NCN26000_REG_PHYCFG1, + NCN26000_PHYCFG1_ENI_MASK, eni_cfg); +} + static irqreturn_t ncn26000_handle_interrupt(struct phy_device *phydev) { int ret; @@ -156,7 +178,7 @@ static struct phy_driver ncn26000_driver[] = { .config_aneg = ncn26000_config_aneg, .read_status = ncn26000_read_status, .handle_interrupt = ncn26000_handle_interrupt, - .set_plca_cfg = genphy_c45_plca_set_cfg, + .set_plca_cfg = ncn26000_c45_plca_set_cfg, .get_plca_cfg = genphy_c45_plca_get_cfg, .get_plca_status = genphy_c45_plca_get_status, .soft_reset = genphy_soft_reset, @@ -177,7 +199,7 @@ static struct phy_driver ncn26000_driver[] = { .read_status = ncn26000_read_status, .handle_interrupt = ncn26000_handle_interrupt, .get_plca_cfg = genphy_c45_plca_get_cfg, - .set_plca_cfg = genphy_c45_plca_set_cfg, + .set_plca_cfg = ncn26000_c45_plca_set_cfg, .get_plca_status = genphy_c45_plca_get_status, .soft_reset = genphy_soft_reset, }, -- 2.43.0