1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
4  * Copyright (c) 2011-2012 Stefan Bethke.
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66     uint16_t *reg)  in arswitch_split_setpage()  argument
73 	*reg = (addr >> 1) & 0x1f;  in arswitch_split_setpage()
75 	if (sc->page != page) {  in arswitch_split_setpage()
78 		sc->page = page;  in arswitch_split_setpage()
84  * the sequence of half-word accesses matters.  The register addresses
85  * are word-even (mod 4).
90 	uint16_t phy, reg;  in arswitch_readreg16()  local
92 	arswitch_split_setpage(dev, addr, &phy, &reg);  in arswitch_readreg16()
93 	return (MDIO_READREG(device_get_parent(dev), 0x10 | phy, reg));  in arswitch_readreg16()
100 arswitch_writereg16(device_t dev, int addr, int data)  in arswitch_writereg16()  argument
102 	uint16_t phy, reg;  in arswitch_writereg16()  local
104 	arswitch_split_setpage(dev, addr, &phy, &reg);  in arswitch_writereg16()
105 	return (MDIO_WRITEREG(device_get_parent(dev), 0x10 | phy, reg, data));  in arswitch_writereg16()
129 arswitch_reg_read32(device_t dev, int phy, int reg)  in arswitch_reg_read32()  argument
132 	lo = MDIO_READREG(device_get_parent(dev), phy, reg);  in arswitch_reg_read32()
133 	hi = MDIO_READREG(device_get_parent(dev), phy, reg + 1);  in arswitch_reg_read32()
139 arswitch_reg_write32(device_t dev, int phy, int reg, uint32_t value)  in arswitch_reg_write32()  argument
149 	if (sc->mii_lo_first) {  in arswitch_reg_write32()
151 		    phy, reg, lo);  in arswitch_reg_write32()
153 		    phy, reg + 1, hi);  in arswitch_reg_write32()
156 		    phy, reg + 1, hi);  in arswitch_reg_write32()
158 		    phy, reg, lo);  in arswitch_reg_write32()
167 	uint16_t phy, reg;  in arswitch_readreg()  local
169 	arswitch_split_setpage(dev, addr, &phy, &reg);  in arswitch_readreg()
170 	return arswitch_reg_read32(dev, 0x10 | phy, reg);  in arswitch_readreg()
176 	uint16_t phy, reg;  in arswitch_writereg()  local
178 	arswitch_split_setpage(dev, addr, &phy, &reg);  in arswitch_writereg()
179 	return (arswitch_reg_write32(dev, 0x10 | phy, reg, value));  in arswitch_writereg()
186  * data versus control space) and so need to be treated
204 arswitch_writereg_lsb(device_t dev, int addr, int data)  in arswitch_writereg_lsb()  argument
207 	return (arswitch_writereg16(dev, addr, data & 0xffff));  in arswitch_writereg_lsb()
211 arswitch_writereg_msb(device_t dev, int addr, int data)  in arswitch_writereg_msb()  argument
214 	return (arswitch_writereg16(dev, addr + 2, (data >> 16) & 0xffff));  in arswitch_writereg_msb()
221 	uint16_t phy, reg;  in arswitch_modifyreg()  local
226 	arswitch_split_setpage(dev, addr, &phy, &reg);  in arswitch_modifyreg()
228 	value = arswitch_reg_read32(dev, 0x10 | phy, reg);  in arswitch_modifyreg()
231 	return (arswitch_reg_write32(dev, 0x10 | phy, reg, value));  in arswitch_modifyreg()
239 	uint16_t phy, reg;  in arswitch_waitreg()  local
243 	arswitch_split_setpage(dev, addr, &phy, &reg);  in arswitch_waitreg()
245 	err = -1;  in arswitch_waitreg()
247 		v = arswitch_reg_read32(dev, 0x10 | phy, reg);  in arswitch_waitreg()
256 		timeout--;  in arswitch_waitreg()