1 /* 2 * (C) Copyright 2001-2015 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * Joe Hershberger, National Instruments 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <dm.h> 11 #include <environment.h> 12 #include <miiphy.h> 13 #include <net.h> 14 #include "eth_internal.h" 15 16 int 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 24 int 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 32 void eth_common_init(void) 33 { 34 bootstage_mark(BOOTSTAGE_ID_NET_ETH_START); 35 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB) 36 miiphy_init(); 37 #endif 38 39 #ifdef CONFIG_PHYLIB 40 phy_init(); 41 #endif 42 } 43 44 int eth_mac_skip(int index) 45 { 46 char enetvar[15]; 47 char *skip_state; 48 49 sprintf(enetvar, index ? "eth%dmacskip" : "ethmacskip", index); 50 skip_state = env_get(enetvar); 51 return skip_state != NULL; 52 } 53 54 void eth_current_changed(void) 55 { 56 char *act = env_get("ethact"); 57 char *ethrotate; 58 59 /* 60 * The call to eth_get_dev() below has a side effect of rotating 61 * ethernet device if uc_priv->current == NULL. This is not what 62 * we want when 'ethrotate' variable is 'no'. 63 */ 64 ethrotate = env_get("ethrotate"); 65 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) 66 return; 67 68 /* update current ethernet name */ 69 if (eth_get_dev()) { 70 if (act == NULL || strcmp(act, eth_get_name()) != 0) 71 env_set("ethact", eth_get_name()); 72 } 73 /* 74 * remove the variable completely if there is no active 75 * interface 76 */ 77 else if (act != NULL) 78 env_set("ethact", NULL); 79 } 80 81 void eth_try_another(int first_restart) 82 { 83 static void *first_failed; 84 char *ethrotate; 85 86 /* 87 * Do not rotate between network interfaces when 88 * 'ethrotate' variable is set to 'no'. 89 */ 90 ethrotate = env_get("ethrotate"); 91 if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) 92 return; 93 94 if (!eth_get_dev()) 95 return; 96 97 if (first_restart) 98 first_failed = eth_get_dev(); 99 100 eth_set_current_to_next(); 101 102 eth_current_changed(); 103 104 if (first_failed == eth_get_dev()) 105 net_restart_wrap = 1; 106 } 107 108 void eth_set_current(void) 109 { 110 static char *act; 111 static int env_changed_id; 112 int env_id; 113 114 env_id = get_env_id(); 115 if ((act == NULL) || (env_changed_id != env_id)) { 116 act = env_get("ethact"); 117 env_changed_id = env_id; 118 } 119 120 if (act == NULL) { 121 char *ethprime = env_get("ethprime"); 122 void *dev = NULL; 123 124 if (ethprime) 125 dev = eth_get_dev_by_name(ethprime); 126 if (dev) 127 eth_set_dev(dev); 128 else 129 eth_set_dev(NULL); 130 } else { 131 eth_set_dev(eth_get_dev_by_name(act)); 132 } 133 134 eth_current_changed(); 135 } 136 137 const char *eth_get_name(void) 138 { 139 return eth_get_dev() ? eth_get_dev()->name : "unknown"; 140 } 141