1 /* 2 * Fixed-Link phy 3 * 4 * Copyright 2017 Bernecker & Rainer Industrieelektronik GmbH 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <config.h> 10 #include <common.h> 11 #include <phy.h> 12 #include <dm.h> 13 #include <fdt_support.h> 14 15 DECLARE_GLOBAL_DATA_PTR; 16 17 int fixedphy_probe(struct phy_device *phydev) 18 { 19 struct fixed_link *priv; 20 int ofnode = phydev->addr; 21 u32 val; 22 23 /* check for mandatory properties within fixed-link node */ 24 val = fdt_getprop_u32_default_node(gd->fdt_blob, 25 ofnode, 0, "speed", 0); 26 if (val != SPEED_10 && val != SPEED_100 && val != SPEED_1000) { 27 printf("ERROR: no/invalid speed given in fixed-link node!"); 28 return -EINVAL; 29 } 30 31 priv = malloc(sizeof(*priv)); 32 if (!priv) 33 return -ENOMEM; 34 memset(priv, 0, sizeof(*priv)); 35 36 phydev->priv = priv; 37 phydev->addr = 0; 38 39 priv->link_speed = val; 40 priv->duplex = fdtdec_get_bool(gd->fdt_blob, ofnode, "full-duplex"); 41 priv->pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "pause"); 42 priv->asym_pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "asym-pause"); 43 44 /* fixed-link phy must not be reset by core phy code */ 45 phydev->flags |= PHY_FLAG_BROKEN_RESET; 46 47 return 0; 48 } 49 50 int fixedphy_startup(struct phy_device *phydev) 51 { 52 struct fixed_link *priv = phydev->priv; 53 54 phydev->asym_pause = priv->asym_pause; 55 phydev->pause = priv->pause; 56 phydev->duplex = priv->duplex; 57 phydev->speed = priv->link_speed; 58 phydev->link = 1; 59 60 return 0; 61 } 62 63 int fixedphy_shutdown(struct phy_device *phydev) 64 { 65 return 0; 66 } 67 68 static struct phy_driver fixedphy_driver = { 69 .uid = PHY_FIXED_ID, 70 .mask = 0xffffffff, 71 .name = "Fixed PHY", 72 .features = PHY_GBIT_FEATURES | SUPPORTED_MII, 73 .probe = fixedphy_probe, 74 .startup = fixedphy_startup, 75 .shutdown = fixedphy_shutdown, 76 }; 77 78 int phy_fixed_init(void) 79 { 80 phy_register(&fixedphy_driver); 81 return 0; 82 } 83