11  * SPDX-License-Identifier:	GPL-2.0+
33 #include <common.h>
44 #define PORT_MASK			((1 << PORT_COUNT) - 1)
53 /* SMI indirection registers for multichip addressing mode */
222 /* Wait for the current SMI indirect command to complete */
229 		val = bus->read(bus, smi_addr, MDIO_DEVAD_NONE, SMI_CMD_REG);  in mv88e61xx_smi_wait()
234 	} while (--timeout);  in mv88e61xx_smi_wait()
236 	puts("SMI busy timeout\n");  in mv88e61xx_smi_wait()
237 	return -ETIMEDOUT;  in mv88e61xx_smi_wait()
241  * The mv88e61xx has three types of addresses: the smi bus address, the device
242  * address, and the register address.  The smi bus address distinguishes it on
243  * the smi bus from other PHYs or switches.  The device address determines
244  * which on-chip register set you are reading/writing (the various PHYs, their
249  * single-chip addressing mode, where it responds to all SMI addresses, using
250  * the smi address as its device address.  This obviously only works when this
251  * is the only chip on the SMI bus.  This allows the driver to access device
253  * non-zero address, it only responds to that SMI address and requires indirect
258 	struct mv88e61xx_phy_priv *priv = phydev->priv;  in mv88e61xx_reg_read()
259 	struct mii_dev *mdio_bus = priv->mdio_bus;  in mv88e61xx_reg_read()
260 	int smi_addr = priv->smi_addr;  in mv88e61xx_reg_read()
263 	/* In single-chip mode, the device can be addressed directly */  in mv88e61xx_reg_read()
265 		return mdio_bus->read(mdio_bus, dev, MDIO_DEVAD_NONE, reg);  in mv88e61xx_reg_read()
273 	res = mdio_bus->write(mdio_bus, smi_addr, MDIO_DEVAD_NONE, SMI_CMD_REG,  in mv88e61xx_reg_read()
284 	res = mdio_bus->read(mdio_bus, smi_addr, MDIO_DEVAD_NONE, SMI_DATA_REG);  in mv88e61xx_reg_read()
295 	struct mv88e61xx_phy_priv *priv = phydev->priv;  in mv88e61xx_reg_write()
296 	struct mii_dev *mdio_bus = priv->mdio_bus;  in mv88e61xx_reg_write()
297 	int smi_addr = priv->smi_addr;  in mv88e61xx_reg_write()
300 	/* In single-chip mode, the device can be addressed directly */  in mv88e61xx_reg_write()
302 		return mdio_bus->write(mdio_bus, dev, MDIO_DEVAD_NONE, reg,  in mv88e61xx_reg_write()
312 	res = mdio_bus->write(mdio_bus, smi_addr, MDIO_DEVAD_NONE,  in mv88e61xx_reg_write()
318 	res = mdio_bus->write(mdio_bus, smi_addr, MDIO_DEVAD_NONE, SMI_CMD_REG,  in mv88e61xx_reg_write()
343 	} while (--timeout);  in mv88e61xx_phy_wait()
345 	return -ETIMEDOUT;  in mv88e61xx_phy_wait()
354 	phydev = (struct phy_device *)smi_wrapper->priv;  in mv88e61xx_phy_read_indirect()
377 	phydev = (struct phy_device *)smi_wrapper->priv;  in mv88e61xx_phy_write_indirect()
398 	return mv88e61xx_phy_read_indirect(phydev->bus, DEVADDR_PHY(phy),  in mv88e61xx_phy_read()
406 	return mv88e61xx_phy_write_indirect(phydev->bus, DEVADDR_PHY(phy),  in mv88e61xx_phy_write()
438 	struct mv88e61xx_phy_priv *priv = phydev->priv;  in mv88e61xx_6352_family()
440 	switch (priv->id) {  in mv88e61xx_6352_family()
476 				phydev->link = 0;  in mv88e61xx_parse_status()
490 			phydev->link = 1;  in mv88e61xx_parse_status()
492 			phydev->link = 0;  in mv88e61xx_parse_status()
496 		phydev->duplex = DUPLEX_FULL;  in mv88e61xx_parse_status()
498 		phydev->duplex = DUPLEX_HALF;  in mv88e61xx_parse_status()
504 		phydev->speed = SPEED_1000;  in mv88e61xx_parse_status()
507 		phydev->speed = SPEED_100;  in mv88e61xx_parse_status()
510 		phydev->speed = SPEED_10;  in mv88e61xx_parse_status()
550 	for (time = 1000; time; time--) {  in mv88e61xx_switch_reset()
558 		return -ETIMEDOUT;  in mv88e61xx_switch_reset()
659 				res = -EIO;  in mv88e61xx_read_port_config()
664 		} while (--timeout);  in mv88e61xx_read_port_config()
667 			res = -ETIMEDOUT;  in mv88e61xx_read_port_config()
673 		phydev->duplex = DUPLEX_FULL;  in mv88e61xx_read_port_config()
675 		phydev->duplex = DUPLEX_HALF;  in mv88e61xx_read_port_config()
681 		phydev->speed = SPEED_1000;  in mv88e61xx_read_port_config()
684 		phydev->speed = SPEED_100;  in mv88e61xx_read_port_config()
687 		phydev->speed = SPEED_10;  in mv88e61xx_read_port_config()
798 	 * Enable energy-detect sensing on PHY, used to determine when a PHY  in mv88e61xx_phy_setup()
863 		return -ENOMEM;  in mv88e61xx_probe()
875 		return -ENOMEM;  in mv88e61xx_probe()
882 	priv->mdio_bus = phydev->bus;  in mv88e61xx_probe()
885 	 * Store the smi bus address in private data.  This lets us use the  in mv88e61xx_probe()
889 	priv->smi_addr = phydev->addr;  in mv88e61xx_probe()
895 	smi_wrapper->priv = phydev;  in mv88e61xx_probe()
896 	strncpy(smi_wrapper->name, "indirect mii", sizeof(smi_wrapper->name));  in mv88e61xx_probe()
897 	smi_wrapper->read = mv88e61xx_phy_read_indirect;  in mv88e61xx_probe()
898 	smi_wrapper->write = mv88e61xx_phy_write_indirect;  in mv88e61xx_probe()
901 	phydev->bus = smi_wrapper;  in mv88e61xx_probe()
903 	phydev->priv = priv;  in mv88e61xx_probe()
905 	priv->id = mv88e61xx_get_switch_id(phydev);  in mv88e61xx_probe()
914 	int ret = -1;  in mv88e61xx_phy_config()
922 			phydev->addr = i;  in mv88e61xx_phy_config()
969 	val = mv88e61xx_phy_read(phydev, phydev->addr, PHY_REG_STATUS1);  in mv88e61xx_phy_is_connected()
986 	int speed = phydev->speed;  in mv88e61xx_phy_startup()
987 	int duplex = phydev->duplex;  in mv88e61xx_phy_startup()
991 			phydev->addr = i;  in mv88e61xx_phy_startup()
1000 			link = (link || phydev->link);  in mv88e61xx_phy_startup()
1003 	phydev->link = link;  in mv88e61xx_phy_startup()
1007 	phydev->speed = speed;  in mv88e61xx_phy_startup()
1008 	phydev->duplex = duplex;  in mv88e61xx_phy_startup()
1044  * Overload weak get_phy_id definition since we need non-standard functions
1065 		return -EIO;  in get_phy_id()
1071 		return -EIO;  in get_phy_id()