f47e6e1e79
Implement side MDIO channel support for LAN937x switches, providing an alternative to SPI for PHY management alongside existing SPI-based switch configuration. This is needed to reduce SPI load, as SPI can be relatively expensive for small packets compared to MDIO support. Also, implemented static mappings for PHY addresses for various LAN937x models to support different internal PHY configurations. Since the PHY address mappings are not equal to the port indexes, this patch also provides PHY address calculation based on hardware strapping configuration. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20241106075942.1636998-6-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
26 lines
1.2 KiB
C
26 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Microchip lan937x dev ops headers
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* Copyright (C) 2019-2022 Microchip Technology Inc.
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*/
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#ifndef __LAN937X_CFG_H
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#define __LAN937X_CFG_H
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int lan937x_reset_switch(struct ksz_device *dev);
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int lan937x_setup(struct dsa_switch *ds);
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void lan937x_teardown(struct dsa_switch *ds);
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void lan937x_port_setup(struct ksz_device *dev, int port, bool cpu_port);
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void lan937x_config_cpu_port(struct dsa_switch *ds);
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int lan937x_switch_init(struct ksz_device *dev);
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void lan937x_switch_exit(struct ksz_device *dev);
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int lan937x_mdio_bus_preinit(struct ksz_device *dev, bool side_mdio);
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int lan937x_create_phy_addr_map(struct ksz_device *dev, bool side_mdio);
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int lan937x_r_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 *data);
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int lan937x_w_phy(struct ksz_device *dev, u16 addr, u16 reg, u16 val);
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int lan937x_change_mtu(struct ksz_device *dev, int port, int new_mtu);
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void lan937x_phylink_get_caps(struct ksz_device *dev, int port,
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struct phylink_config *config);
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void lan937x_setup_rgmii_delay(struct ksz_device *dev, int port);
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int lan937x_set_ageing_time(struct ksz_device *dev, unsigned int msecs);
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int lan937x_tc_cbs_set_cinc(struct ksz_device *dev, int port, u32 val);
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#endif
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