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[5.12.227.87]) by smtp.gmail.com with ESMTPSA id x25sm6061616edv.65.2021.02.12.09.24.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Feb 2021 09:24:46 -0800 (PST) From: Vladimir Oltean To: "David S. Miller" , Jakub Kicinski Cc: Antoine Tenart , Quentin Schulz , Michael Walle , netdev@vger.kernel.org, Heiner Kallweit , Andrew Lunn , Florian Fainelli , Russell King - ARM Linux admin , Ioana Ciornei , Maxim Kochetkov , Bjarni Jonasson , Steen Hegelund , UNGLinuxDriver@microchip.com Subject: [PATCH net-next 2/2] net: phy: mscc: configure in-band auto-negotiation for VSC8514 Date: Fri, 12 Feb 2021 19:23:41 +0200 Message-Id: <20210212172341.3489046-3-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210212172341.3489046-1-olteanv@gmail.com> References: <20210212172341.3489046-1-olteanv@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Vladimir Oltean Add the in-band configuration knob for the VSC8514 quad PHY. Tested with QSGMII in-band AN both on and off on NXP LS1028A-RDB and T1040-RDB. Signed-off-by: Vladimir Oltean --- drivers/net/phy/mscc/mscc.h | 2 ++ drivers/net/phy/mscc/mscc_main.c | 13 +++++++++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/net/phy/mscc/mscc.h b/drivers/net/phy/mscc/mscc.h index 9481bce94c2e..44d1d8f28481 100644 --- a/drivers/net/phy/mscc/mscc.h +++ b/drivers/net/phy/mscc/mscc.h @@ -187,6 +187,8 @@ enum rgmii_clock_delay { #define MSCC_PHY_EXTENDED_INT_MS_EGR BIT(9) /* Extended Page 3 Registers */ +#define MSCC_PHY_SERDES_PCS_CTRL 16 +#define MSCC_PHY_SERDES_ANEG BIT(7) #define MSCC_PHY_SERDES_TX_VALID_CNT 21 #define MSCC_PHY_SERDES_TX_CRC_ERR_CNT 22 #define MSCC_PHY_SERDES_RX_VALID_CNT 28 diff --git a/drivers/net/phy/mscc/mscc_main.c b/drivers/net/phy/mscc/mscc_main.c index 2f2157e3deab..2951ed216620 100644 --- a/drivers/net/phy/mscc/mscc_main.c +++ b/drivers/net/phy/mscc/mscc_main.c @@ -1986,6 +1986,18 @@ static int vsc85xx_read_status(struct phy_device *phydev) return genphy_read_status(phydev); } +static int vsc8514_config_inband_aneg(struct phy_device *phydev, bool enabled) +{ + int reg_val = 0; + + if (enabled) + reg_val = MSCC_PHY_SERDES_ANEG; + + return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_3, + MSCC_PHY_SERDES_PCS_CTRL, MSCC_PHY_SERDES_ANEG, + reg_val); +} + static int vsc8514_probe(struct phy_device *phydev) { struct vsc8531_private *vsc8531; @@ -2176,6 +2188,7 @@ static struct phy_driver vsc85xx_driver[] = { .phy_id_mask = 0xfffffff0, .soft_reset = &genphy_soft_reset, .config_init = &vsc8514_config_init, + .config_inband_aneg = vsc8514_config_inband_aneg, .config_aneg = &vsc85xx_config_aneg, .read_status = &vsc85xx_read_status, .handle_interrupt = vsc85xx_handle_interrupt, -- 2.25.1