b1c7b87443
Ping tested: [ 11.808455] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Full - flow control rx/tx [ 11.816497] IPv6: ADDRCONF(NETDEV_CHANGE): swp0: link becomes ready [root@LS1028ARDB ~] # ethtool -s swp0 advertise 0x4 [ 18.844591] mscc_felix 0000:00:00.5 swp0: Link is Down [ 22.048337] mscc_felix 0000:00:00.5 swp0: Link is Up - 100Mbps/Half - flow control off [root@LS1028ARDB ~] # ip addr add 192.168.1.1/24 dev swp0 [root@LS1028ARDB ~] # ping 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes (...) ^C--- 192.168.1.2 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 0.383/0.611/1.051 ms [root@LS1028ARDB ~] # ethtool -s swp0 advertise 0x10 [ 355.637747] mscc_felix 0000:00:00.5 swp0: Link is Down [ 358.788034] mscc_felix 0000:00:00.5 swp0: Link is Up - 1Gbps/Half - flow control off [root@LS1028ARDB ~] # ping 192.168.1.2 PING 192.168.1.2 (192.168.1.2): 56 data bytes (...) ^C --- 192.168.1.2 ping statistics --- 16 packets transmitted, 16 packets received, 0% packet loss round-trip min/avg/max = 0.301/0.384/1.138 ms Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
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/* Copyright 2019 NXP */
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#ifndef _FSL_ENETC_MDIO_H_
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#define _FSL_ENETC_MDIO_H_
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#include <linux/phy.h>
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/* PCS registers */
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#define ENETC_PCS_LINK_TIMER1 0x12
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#define ENETC_PCS_LINK_TIMER1_VAL 0x06a0
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#define ENETC_PCS_LINK_TIMER2 0x13
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#define ENETC_PCS_LINK_TIMER2_VAL 0x0003
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#define ENETC_PCS_IF_MODE 0x14
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#define ENETC_PCS_IF_MODE_SGMII_EN BIT(0)
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#define ENETC_PCS_IF_MODE_USE_SGMII_AN BIT(1)
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#define ENETC_PCS_IF_MODE_SGMII_SPEED(x) (((x) << 2) & GENMASK(3, 2))
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#define ENETC_PCS_IF_MODE_DUPLEX_HALF BIT(3)
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/* Not a mistake, the SerDes PLL needs to be set at 3.125 GHz by Reset
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* Configuration Word (RCW, outside Linux control) for 2.5G SGMII mode. The PCS
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* still thinks it's at gigabit.
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*/
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enum enetc_pcs_speed {
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ENETC_PCS_SPEED_10 = 0,
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ENETC_PCS_SPEED_100 = 1,
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ENETC_PCS_SPEED_1000 = 2,
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ENETC_PCS_SPEED_2500 = 2,
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};
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struct enetc_hw;
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struct enetc_mdio_priv {
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struct enetc_hw *hw;
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int mdio_base;
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};
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#if IS_REACHABLE(CONFIG_FSL_ENETC_MDIO)
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int enetc_mdio_read(struct mii_bus *bus, int phy_id, int regnum);
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int enetc_mdio_write(struct mii_bus *bus, int phy_id, int regnum, u16 value);
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struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs);
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#else
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static inline int enetc_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
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{ return -EINVAL; }
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static inline int enetc_mdio_write(struct mii_bus *bus, int phy_id, int regnum,
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u16 value)
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{ return -EINVAL; }
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struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs)
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{ return ERR_PTR(-EINVAL); }
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#endif
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#endif
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