1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (C) 2009-2016 Cavium, Inc.
11 #include "mdio-cavium.h"
18 	if (m == p->mode)  in cavium_mdiobus_set_mode()
21 	smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK);  in cavium_mdiobus_set_mode()
22 	smi_clk.s.mode = (m == C45) ? 1 : 0;  in cavium_mdiobus_set_mode()
24 	oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK);  in cavium_mdiobus_set_mode()
25 	p->mode = m;  in cavium_mdiobus_set_mode()
35 	cavium_mdiobus_set_mode(p, C45);  in cavium_mdiobus_c45_addr()
39 	oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT);  in cavium_mdiobus_c45_addr()
47 	oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);  in cavium_mdiobus_c45_addr()
54 		smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT);  in cavium_mdiobus_c45_addr()
55 	} while (smi_wr.s.pending && --timeout);  in cavium_mdiobus_c45_addr()
58 		return -EIO;  in cavium_mdiobus_c45_addr()
64 	struct cavium_mdiobus *p = bus->priv;  in cavium_mdiobus_read()
77 		op = 3; /* MDIO_CLAUSE_45_READ */  in cavium_mdiobus_read()
86 	oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);  in cavium_mdiobus_read()
93 		smi_rd.u64 = oct_mdio_readq(p->register_base + SMI_RD_DAT);  in cavium_mdiobus_read()
94 	} while (smi_rd.s.pending && --timeout);  in cavium_mdiobus_read()
99 		return -EIO;  in cavium_mdiobus_read()
105 	struct cavium_mdiobus *p = bus->priv;  in cavium_mdiobus_write()
125 	oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT);  in cavium_mdiobus_write()
131 	oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);  in cavium_mdiobus_write()
138 		smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT);  in cavium_mdiobus_write()
139 	} while (smi_wr.s.pending && --timeout);  in cavium_mdiobus_write()
142 		return -EIO;  in cavium_mdiobus_write()