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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiner Kallweit , Russell King , Florian Fainelli , Broadcom internal kernel review list , Philipp Zabel Cc: noltari@gmail.com, jonas.gorski@gmail.com, Kyle Hendry , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v4 1/3] net: phy: bcm63xx: add support for BCM63268 GPHY Date: Wed, 5 Mar 2025 21:30:58 -0800 Message-ID: <20250306053105.41677-2-kylehendrydev@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250306053105.41677-1-kylehendrydev@gmail.com> References: <20250306053105.41677-1-kylehendrydev@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support for the internal gigabit PHY on the BCM63268 SoC. Low power mode is set in the GPHY control register which is accessed through the GPIO controller syscon. Signed-off-by: Kyle Hendry --- drivers/net/phy/bcm63xx.c | 88 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) diff --git a/drivers/net/phy/bcm63xx.c b/drivers/net/phy/bcm63xx.c index b46a736a3130..b45f2c9acc06 100644 --- a/drivers/net/phy/bcm63xx.c +++ b/drivers/net/phy/bcm63xx.c @@ -3,8 +3,11 @@ * Driver for Broadcom 63xx SOCs integrated PHYs */ #include "bcm-phy-lib.h" +#include #include #include +#include +#include =20 #define MII_BCM63XX_IR 0x1a /* interrupt register */ #define MII_BCM63XX_IR_EN 0x4000 /* global interrupt enable */ @@ -13,10 +16,20 @@ #define MII_BCM63XX_IR_LINK 0x0200 /* link changed */ #define MII_BCM63XX_IR_GMASK 0x0100 /* global interrupt mask */ =20 +#define PHY_ID_BCM63268_GPHY 0x03625f50 + +#define GPHY_CTRL_OFFSET 0x54 +#define GPHY_CTRL_IDDQ_BIAS BIT(0) +#define GPHY_CTRL_LOW_PWR BIT(3) + MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver"); MODULE_AUTHOR("Maxime Bizon "); MODULE_LICENSE("GPL"); =20 +struct bcm_gphy_priv { + struct regmap *gpio_ctrl; +}; + static int bcm63xx_config_intr(struct phy_device *phydev) { int reg, err; @@ -69,6 +82,71 @@ static int bcm63xx_config_init(struct phy_device *phydev) return phy_write(phydev, MII_BCM63XX_IR, reg); } =20 +static int bcm63268_gphy_set(struct phy_device *phydev, bool enable) +{ + struct bcm_gphy_priv *priv =3D phydev->priv; + u32 pwr_bits; + int ret; + + pwr_bits =3D GPHY_CTRL_IDDQ_BIAS | GPHY_CTRL_LOW_PWR; + + if (enable) + ret =3D regmap_update_bits(priv->gpio_ctrl, GPHY_CTRL_OFFSET, pwr_bits, = 0); + else + ret =3D regmap_update_bits(priv->gpio_ctrl, GPHY_CTRL_OFFSET, pwr_bits, = pwr_bits); + + return ret; +} + +static int bcm63268_gphy_resume(struct phy_device *phydev) +{ + int ret; + + ret =3D bcm63268_gphy_set(phydev, true); + if (ret) + return ret; + + return genphy_resume(phydev); +} + +static int bcm63268_gphy_suspend(struct phy_device *phydev) +{ + int ret; + + ret =3D genphy_suspend(phydev); + if (ret) + return ret; + + return bcm63268_gphy_set(phydev, false); +} + +static int bcm63268_gphy_probe(struct phy_device *phydev) +{ + struct mdio_device *mdio =3D &phydev->mdio; + struct device *dev =3D &mdio->dev; + struct reset_control *reset; + struct bcm_gphy_priv *priv; + struct regmap *regmap; + + priv =3D devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + phydev->priv =3D priv; + + regmap =3D syscon_regmap_lookup_by_phandle(dev->of_node, "brcm,gpio-ctrl"= ); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + priv->gpio_ctrl =3D regmap; + + reset =3D devm_reset_control_get_optional_exclusive(dev, NULL); + if (IS_ERR(reset)) + return PTR_ERR(reset); + + return reset_control_reset(reset); +} + static struct phy_driver bcm63xx_driver[] =3D { { .phy_id =3D 0x00406000, @@ -89,6 +167,15 @@ static struct phy_driver bcm63xx_driver[] =3D { .config_init =3D bcm63xx_config_init, .config_intr =3D bcm63xx_config_intr, .handle_interrupt =3D bcm_phy_handle_interrupt, +}, { + .phy_id =3D PHY_ID_BCM63268_GPHY, + .phy_id_mask =3D 0xfffffff0, + .name =3D "Broadcom BCM63268 GPHY", + /* PHY_BASIC_FEATURES */ + .flags =3D PHY_IS_INTERNAL, + .probe =3D bcm63268_gphy_probe, + .resume =3D bcm63268_gphy_resume, + .suspend =3D bcm63268_gphy_suspend, } }; =20 module_phy_driver(bcm63xx_driver); @@ -96,6 +183,7 @@ module_phy_driver(bcm63xx_driver); static const struct mdio_device_id __maybe_unused bcm63xx_tbl[] =3D { { 0x00406000, 0xfffffc00 }, { 0x002bdc00, 0xfffffc00 }, + { PHY_ID_MATCH_EXACT(PHY_ID_BCM63268_GPHY) }, { } }; =20 --=20 2.43.0 From nobody Sun Feb 8 05:27:51 2026 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7C931A00F0; Thu, 6 Mar 2025 05:31:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741239114; cv=none; b=GIEN2fl3I/W7ch38rsOwc+RHUOiYTfqCa1w4V3dRBKK1Ab676dSz+FNIEnlvMSUIKrSQKvbYbC8JJtDO+tY1SguneAVWCOZ+RmVTx4Rz3mhNHS5ZzUOn3cZN9yIHQePUZ5e085HUZldevjbH/Kap8/zQp2W2uC1IVscXRVWQayI= ARC-Message-Signature: i=1; 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Wed, 05 Mar 2025 21:31:52 -0800 (PST) Received: from localhost.localdomain ([205.250.198.200]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22410aa8ae4sm3470045ad.243.2025.03.05.21.31.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Mar 2025 21:31:51 -0800 (PST) From: Kyle Hendry To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiner Kallweit , Russell King , Florian Fainelli , Broadcom internal kernel review list , Philipp Zabel Cc: noltari@gmail.com, jonas.gorski@gmail.com, Kyle Hendry , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v4 2/3] net: phy: enable bcm63xx on bmips Date: Wed, 5 Mar 2025 21:30:59 -0800 Message-ID: <20250306053105.41677-3-kylehendrydev@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250306053105.41677-1-kylehendrydev@gmail.com> References: <20250306053105.41677-1-kylehendrydev@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allow the bcm63xx PHY driver to be built on bmips machines Signed-off-by: Kyle Hendry Reviewed-by: Florian Fainelli --- drivers/net/phy/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 41c15a2c2037..0f2956ba472d 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -156,10 +156,10 @@ config BCM54140_PHY =20 config BCM63XX_PHY tristate "Broadcom 63xx SOCs internal PHY" - depends on BCM63XX || COMPILE_TEST + depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST select BCM_NET_PHYLIB help - Currently supports the 6348 and 6358 PHYs. + Currently supports the 6348, 6358 and 63268 PHYs. =20 config BCM7XXX_PHY tristate "Broadcom 7xxx SOCs internal PHYs" --=20 2.43.0 From nobody Sun Feb 8 05:27:51 2026 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D00531A2846; 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Wed, 05 Mar 2025 21:31:53 -0800 (PST) Received: from localhost.localdomain ([205.250.198.200]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22410aa8ae4sm3470045ad.243.2025.03.05.21.31.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Mar 2025 21:31:53 -0800 (PST) From: Kyle Hendry To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiner Kallweit , Russell King , Florian Fainelli , Broadcom internal kernel review list , Philipp Zabel Cc: noltari@gmail.com, jonas.gorski@gmail.com, Kyle Hendry , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v4 3/3] dt-bindings: net: phy: add BCM63268 GPHY Date: Wed, 5 Mar 2025 21:31:00 -0800 Message-ID: <20250306053105.41677-4-kylehendrydev@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250306053105.41677-1-kylehendrydev@gmail.com> References: <20250306053105.41677-1-kylehendrydev@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add YAML bindings for BCM63268 internal GPHY Signed-off-by: Kyle Hendry --- .../bindings/net/brcm,bcm63268-gphy.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/brcm,bcm63268-gph= y.yaml diff --git a/Documentation/devicetree/bindings/net/brcm,bcm63268-gphy.yaml = b/Documentation/devicetree/bindings/net/brcm,bcm63268-gphy.yaml new file mode 100644 index 000000000000..1f91cf0541eb --- /dev/null +++ b/Documentation/devicetree/bindings/net/brcm,bcm63268-gphy.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/brcm,bcm63268-gphy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM63268 GPHY + +description: Broadcom's internal gigabit ethernet PHY on BCM63268 SoC + +maintainers: + - TBD + +allOf: + - $ref: ethernet-phy.yaml# + +properties: + compatible: + const: ethernet-phy-id0362.5f50 + + reg: + maxItems: 1 + + brcm,gpio-ctrl: + $ref: /schemas/types.yaml#/definitions/phandle + description: Phandle to the SoC GPIO controller + which contains PHY control registers + +required: + - reg + - brcm,gpio-ctrl + - resets + +unevaluatedProperties: false + +examples: + - | + #include + + mdio { + #address-cells =3D <1>; + #size-cells =3D <0>; + + ethernet-phy@4 { + compatible =3D "ethernet-phy-id0362.5f50"; + reg =3D <4>; + + resets =3D <&periph_rst BCM63268_RST_GPHY>; + + brcm,gpio-ctrl =3D <&gpio_cntl>; + }; + }; --=20 2.43.0