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stmmac: intel: add pcs-xpcs for Intel mGbE controller
Intel mGbE controller such as those in EHL & TGL uses pcs-xpcs driver for SGMII interface. To ensure mdio bus scanning does not assign phy_device to MDIO-addressable entities like intel serdes and pcs-xpcs, we set up to phy_mask to skip them. Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 14 additions and 1 deletions
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@ -9,6 +9,9 @@
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#include "dwmac4.h"
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#include "stmmac.h"
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#define INTEL_MGBE_ADHOC_ADDR 0x15
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#define INTEL_MGBE_XPCS_ADDR 0x16
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struct intel_priv_data {
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int mdio_adhoc_addr; /* mdio address for serdes & etc */
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};
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@ -333,6 +336,16 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
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/* Use the last Rx queue */
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plat->vlan_fail_q = plat->rx_queues_to_use - 1;
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/* Intel mgbe SGMII interface uses pcs-xcps */
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if (plat->phy_interface == PHY_INTERFACE_MODE_SGMII) {
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plat->mdio_bus_data->has_xpcs = true;
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plat->mdio_bus_data->xpcs_an_inband = true;
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}
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/* Ensure mdio bus scan skips intel serdes and pcs-xpcs */
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plat->mdio_bus_data->phy_mask = 1 << INTEL_MGBE_ADHOC_ADDR;
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plat->mdio_bus_data->phy_mask |= 1 << INTEL_MGBE_XPCS_ADDR;
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return 0;
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}
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@ -664,7 +677,7 @@ static int intel_eth_pci_probe(struct pci_dev *pdev,
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pci_set_master(pdev);
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plat->bsp_priv = intel_priv;
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intel_priv->mdio_adhoc_addr = 0x15;
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intel_priv->mdio_adhoc_addr = INTEL_MGBE_ADHOC_ADDR;
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ret = info->setup(pdev, plat);
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if (ret)
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