/* Extract non-volatile configuration */
static int falcon_probe_nvconfig(struct efx_nic *efx)
{
struct falcon_nvconfig *nvconfig;
int board_rev;
int rc;
nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
if (!nvconfig)
return -ENOMEM;
rc = falcon_read_nvram(efx, nvconfig);
if (rc == -EINVAL) {
EFX_ERR(efx, "NVRAM is invalid therefore using defaults\n");
efx->phy_type = PHY_TYPE_NONE;
efx->mdio.prtad = MDIO_PRTAD_NONE;
board_rev = 0;
rc = 0;
} else if (rc) {
goto fail1;
} else {
struct falcon_nvconfig_board_v2 *v2 = &nvconfig->board_v2;
struct falcon_nvconfig_board_v3 *v3 = &nvconfig->board_v3;
efx->phy_type = v2->port0_phy_type;
efx->mdio.prtad = v2->port0_phy_addr;
board_rev = le16_to_cpu(v2->board_revision);
if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
rc = falcon_spi_device_init(
efx, &efx->spi_flash, FFE_AB_SPI_DEVICE_FLASH,
le32_to_cpu(v3->spi_device_type
[FFE_AB_SPI_DEVICE_FLASH]));
if (rc)
goto fail2;
rc = falcon_spi_device_init(
efx, &efx->spi_eeprom, FFE_AB_SPI_DEVICE_EEPROM,
le32_to_cpu(v3->spi_device_type
[FFE_AB_SPI_DEVICE_EEPROM]));
if (rc)
goto fail2;
}
}
/* Read the MAC addresses */
memcpy(efx->mac_address, nvconfig->mac_address[0], ETH_ALEN);
EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mdio.prtad);
falcon_probe_board(efx, board_rev);
kfree(nvconfig);
return 0;
fail2:
falcon_remove_spi_devices(efx);
fail1:
kfree(nvconfig);
return rc;
}
/* Probe all SPI devices on the NIC */
static void falcon_probe_spi_devices(struct efx_nic *efx)
{
struct falcon_nic_data *nic_data = efx->nic_data;
efx_oword_t nic_stat, gpio_ctl, ee_vpd_cfg;
int boot_dev;
efx_reado(efx, &gpio_ctl, FR_AB_GPIO_CTL);
efx_reado(efx, &nic_stat, FR_AB_NIC_STAT);
efx_reado(efx, &ee_vpd_cfg, FR_AB_EE_VPD_CFG0);
if (EFX_OWORD_FIELD(gpio_ctl, FRF_AB_GPIO3_PWRUP_VALUE)) {
boot_dev = (EFX_OWORD_FIELD(nic_stat, FRF_AB_SF_PRST) ?
FFE_AB_SPI_DEVICE_FLASH : FFE_AB_SPI_DEVICE_EEPROM);
netif_dbg(efx, probe, efx->net_dev, "Booted from %s\n",
boot_dev == FFE_AB_SPI_DEVICE_FLASH ?
"flash" : "EEPROM");
} else {
/* Disable VPD and set clock dividers to safe
* values for initial programming. */
boot_dev = -1;
netif_dbg(efx, probe, efx->net_dev,
"Booted from internal ASIC settings;"
" setting SPI config\n");
EFX_POPULATE_OWORD_3(ee_vpd_cfg, FRF_AB_EE_VPD_EN, 0,
/* 125 MHz / 7 ~= 20 MHz */
FRF_AB_EE_SF_CLOCK_DIV, 7,
/* 125 MHz / 63 ~= 2 MHz */
FRF_AB_EE_EE_CLOCK_DIV, 63);
efx_writeo(efx, &ee_vpd_cfg, FR_AB_EE_VPD_CFG0);
}
mutex_init(&nic_data->spi_lock);
if (boot_dev == FFE_AB_SPI_DEVICE_FLASH)
falcon_spi_device_init(efx, &nic_data->spi_flash,
FFE_AB_SPI_DEVICE_FLASH,
default_flash_type);
if (boot_dev == FFE_AB_SPI_DEVICE_EEPROM)
falcon_spi_device_init(efx, &nic_data->spi_eeprom,
FFE_AB_SPI_DEVICE_EEPROM,
large_eeprom_type);
}
static int falcon_probe_nvconfig(struct efx_nic *efx)
{
struct falcon_nic_data *nic_data = efx->nic_data;
struct falcon_nvconfig *nvconfig;
int rc;
nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
if (!nvconfig)
return -ENOMEM;
rc = falcon_read_nvram(efx, nvconfig);
if (rc)
goto out;
efx->phy_type = nvconfig->board_v2.port0_phy_type;
efx->mdio.prtad = nvconfig->board_v2.port0_phy_addr;
if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
falcon_spi_device_init(
efx, &nic_data->spi_flash, FFE_AB_SPI_DEVICE_FLASH,
le32_to_cpu(nvconfig->board_v3
.spi_device_type[FFE_AB_SPI_DEVICE_FLASH]));
falcon_spi_device_init(
efx, &nic_data->spi_eeprom, FFE_AB_SPI_DEVICE_EEPROM,
le32_to_cpu(nvconfig->board_v3
.spi_device_type[FFE_AB_SPI_DEVICE_EEPROM]));
}
memcpy(efx->net_dev->perm_addr, nvconfig->mac_address[0], ETH_ALEN);
netif_dbg(efx, probe, efx->net_dev, "PHY is %d phy_id %d\n",
efx->phy_type, efx->mdio.prtad);
rc = falcon_probe_board(efx,
le16_to_cpu(nvconfig->board_v2.board_revision));
out:
kfree(nvconfig);
return rc;
}
