1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * (C) Copyright 2001-2015 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * Joe Hershberger, National Instruments 6 */ 7 8#include <common.h> 9#include <bootstage.h> 10#include <dm.h> 11#include <env.h> 12#include <miiphy.h> 13#include <net.h> 14#include "eth_internal.h" 15 16int eth_env_get_enetaddr_by_index(const char *base_name, int index, 17 uchar *enetaddr) 18{ 19 char enetvar[32]; 20 sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index); 21 return eth_env_get_enetaddr(enetvar, enetaddr); 22} 23 24int eth_env_set_enetaddr_by_index(const char *base_name, int index, 25 uchar *enetaddr) 26{ 27 char enetvar[32]; 28 sprintf(enetvar, index ? "%s%daddr" : "%saddr", base_name, index); 29 return eth_env_set_enetaddr(enetvar, enetaddr); 30} 31 32void eth_common_init(void) 33{ 34 bootstage_mark(BOOTSTAGE_ID_NET_ETH_START); 35#if CONFIG_IS_ENABLED(ETH) 36#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB) 37 miiphy_init(); 38#endif 39#endif 40} 41 42int eth_mac_skip(int index) 43{ 44 char enetvar[15]; 45 char *skip_state; 46 47 sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index); 48 skip_state = env_get(enetvar); 49 return skip_state != NULL; 50} 51 52void eth_current_changed(void) 53{ 54 char *act = env_get("ethact"); 55 char *ethrotate; 56 57 /* 58 * The call to eth_get_dev() below has a side effect of rotating 59 * ethernet device if uc_priv->current == NULL. This is not what 60 * we want when 'ethrotate' variable is 'no'. 61 */ 62 ethrotate = env_get("ethrotate"); 63 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) 64 return; 65 66 /* update current ethernet name */ 67 if (eth_get_dev()) { 68 if (act == NULL || strcmp(act, eth_get_name()) != 0) 69 env_set("ethact", eth_get_name()); 70 } 71 /* 72 * remove the variable completely if there is no active 73 * interface 74 */ 75 else if (act != NULL) 76 env_set("ethact", NULL); 77} 78 79void eth_try_another(int first_restart) 80{ 81 static void *first_failed; 82 char *ethrotate; 83 84 /* 85 * Do not rotate between network interfaces when 86 * 'ethrotate' variable is set to 'no'. 87 */ 88 ethrotate = env_get("ethrotate"); 89 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) 90 return; 91 92 if (!eth_get_dev()) 93 return; 94 95 if (first_restart) 96 first_failed = eth_get_dev(); 97 98 eth_set_current_to_next(); 99 100 eth_current_changed(); 101 102 if (first_failed == eth_get_dev()) 103 net_restart_wrap = 1; 104} 105 106void eth_set_current(void) 107{ 108 static char *act; 109 static int env_changed_id; 110 int env_id; 111 112 env_id = env_get_id(); 113 if ((act == NULL) || (env_changed_id != env_id)) { 114 act = env_get("ethact"); 115 env_changed_id = env_id; 116 } 117 118 if (act == NULL) { 119 char *ethprime = env_get("ethprime"); 120 void *dev = NULL; 121 122 if (ethprime) 123 dev = eth_get_dev_by_name(ethprime); 124 if (dev) 125 eth_set_dev(dev); 126 else 127 eth_set_dev(NULL); 128 } else { 129 eth_set_dev(eth_get_dev_by_name(act)); 130 } 131 132 eth_current_changed(); 133} 134 135const char *eth_get_name(void) 136{ 137 return eth_get_dev() ? eth_get_dev()->name : "unknown"; 138} 139