* Copyright 2010-2011 Freescale Semiconductor, Inc.
* author Andy Fleming
*
- * Some code get from linux kenrel
+ * Some code copied from linux kernel
* Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
*/
#include <miiphy.h>
#define MII_LAN83C185_EDPWRDOWN (1 << 13) /* EDPWRDOWN */
#define MII_LAN83C185_ENERGYON (1 << 1) /* ENERGYON */
+/* This code does not check the partner abilities. */
static int smsc_parse_status(struct phy_device *phydev)
{
int bmcr;
return smsc_parse_status(phydev);
}
+static int smsc_mdix_setup(struct phy_device *phydev)
+{
+ int ret;
+ static const char *mdix = "_mdi";
+ char varname[strlen(phydev->bus->name) + strlen(mdix) + 1];
+ const char *val;
+
+ snprintf(varname, sizeof(varname), "%s%s", phydev->bus->name, mdix);
+
+ val = getenv(varname);
+ if (val) {
+ if (strcasecmp(val, "auto") == 0) {
+ ret = 0;
+ } else if (strcasecmp(val, "mdix") == 0) {
+ ret = 1;
+ } else if (strcasecmp(val, "mdi") == 0) {
+ ret = 2;
+ } else {
+ printf("Improper setting '%s' for %s\n", val, varname);
+ printf("Expected one of: 'auto', 'mdi', 'mdix'\n");
+ return -EINVAL;
+ }
+ } else {
+ ret = 0;
+ }
+ return ret;
+}
+
+static int smsc_config(struct phy_device *phydev)
+{
+ int mdix = smsc_mdix_setup(phydev);
+
+ if (mdix < 0) {
+ return mdix;
+ } else if (mdix) {
+ int ret = phy_write(phydev, MDIO_DEVAD_NONE, 0x1b,
+ (1 << 15) | ((mdix & 1) << 13));
+ if (ret) {
+ printf("Failed to setup MDI/MDIX mode: %d\n", ret);
+ return ret;
+ }
+ }
+ return genphy_config_aneg(phydev);
+}
+
static struct phy_driver lan8700_driver = {
.name = "SMSC LAN8700",
.uid = 0x0007c0c0,
.name = "SMSC LAN8710/LAN8720",
.uid = 0x0007c0f0,
.mask = 0xffff0,
- .features = PHY_GBIT_FEATURES,
- .config = &genphy_config_aneg,
+ .features = PHY_BASIC_FEATURES,
+ .config = &smsc_config,
.startup = &smsc_startup,
.shutdown = &genphy_shutdown,
};