diff options
Diffstat (limited to 'net/eth.c')
| -rw-r--r-- | net/eth.c | 35 |
1 files changed, 31 insertions, 4 deletions
@@ -337,14 +337,30 @@ U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr); int eth_init(void) { - struct udevice *current; + char *ethact = getenv("ethact"); + char *ethrotate = getenv("ethrotate"); + struct udevice *current = NULL; struct udevice *old_current; int ret = -ENODEV; - current = eth_get_dev(); + /* + * When 'ethrotate' variable is set to 'no' and 'ethact' variable + * is already set to an ethernet device, we should stick to 'ethact'. + */ + if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) { + if (ethact) { + current = eth_get_dev_by_name(ethact); + if (!current) + return -EINVAL; + } + } + if (!current) { - printf("No ethernet found.\n"); - return -ENODEV; + current = eth_get_dev(); + if (!current) { + printf("No ethernet found.\n"); + return -ENODEV; + } } old_current = current; @@ -1039,6 +1055,17 @@ int eth_receive(void *packet, int length) static void eth_current_changed(void) { char *act = getenv("ethact"); + char *ethrotate; + + /* + * The call to eth_get_dev() below has a side effect of rotating + * ethernet device if uc_priv->current == NULL. This is not what + * we want when 'ethrotate' variable is 'no'. + */ + ethrotate = getenv("ethrotate"); + if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0)) + return; + /* update current ethernet name */ if (eth_get_dev()) { if (act == NULL || strcmp(act, eth_get_name()) != 0) |
