static int set_ethaddr_from_at24mac(void)
{
const int ETH_ADDR_LEN = 6;
unsigned char ethaddr[ETH_ADDR_LEN];
const char *ETHADDR_NAME = "ethaddr";
struct udevice *bus, *dev;
if (getenv(ETHADDR_NAME))
return 0;
if (uclass_get_device_by_seq(UCLASS_I2C, AT24MAC_ON_I2C_BUS, &bus)) {
printf("Cannot find I2C bus\n");
return -1;
}
if (dm_i2c_probe(bus, AT24MAC_ADDR, 0, &dev)) {
printf("Failed to probe I2C device chip\n");
return -1;
}
if (dm_i2c_read(dev, AT24MAC_REG, ethaddr, ETH_ADDR_LEN)) {
printf("Failed to read ethernet address from AT24MAC\n");
return -1;
}
if (!is_valid_ethaddr(ethaddr)) {
printf("The ethernet address read from AT24MAC is not valid\n");
return -1;
}
return eth_setenv_enetaddr(ETHADDR_NAME, ethaddr);
}
bool dm_i2c_simple_probe(struct udevice *bus, uint chip_addr)
{
struct udevice *dev;
return !dm_i2c_probe(bus, chip_addr, DM_I2C_CHIP_RD_ADDRESS |
DM_I2C_CHIP_WR_ADDRESS, &dev);
}
static int k2g_alt_board_detect(void)
{
#ifndef CONFIG_DM_I2C
int rc;
rc = i2c_set_bus_num(1);
if (rc)
return rc;
rc = i2c_probe(K2G_GP_AUDIO_CODEC_ADDRESS);
if (rc)
return rc;
#else
struct udevice *bus, *dev;
int rc;
rc = uclass_get_device_by_seq(UCLASS_I2C, 1, &bus);
if (rc)
return rc;
rc = dm_i2c_probe(bus, K2G_GP_AUDIO_CODEC_ADDRESS, 0, &dev);
if (rc)
return rc;
#endif
ti_i2c_eeprom_am_set("66AK2GGP", "1.0X");
return 0;
}
int i2c_probe(uint8_t chip_addr)
{
struct udevice *bus, *dev;
int ret;
ret = uclass_get_device_by_seq(UCLASS_I2C, cur_busnum, &bus);
if (ret) {
debug("Cannot find I2C bus %d: err=%d\n", cur_busnum, ret);
return ret;
}
if (!bus)
return -ENOENT;
return dm_i2c_probe(bus, chip_addr, 0, &dev);
}
