An issue was identified where selecting the phy-mode as
rgmii-id in the device tree source (DTS) would cause the
`dwc_eth_xgmac_socfpga` driver to raise an unsupported phy mode error.

>From the MAC controller's perspective, the rgmii and rgmii-id
phy modes are effectively identical. To address this, both
modes will now be configured to rgmii in the MAC controller.

This change ensures that the rgmii-id phy mode is properly
supported without error.

Signed-off-by: Boon Khai Ng <boon.khai...@intel.com>
---
 drivers/net/dwc_eth_xgmac_socfpga.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/dwc_eth_xgmac_socfpga.c 
b/drivers/net/dwc_eth_xgmac_socfpga.c
index 87fb7e887e..1864187c17 100644
--- a/drivers/net/dwc_eth_xgmac_socfpga.c
+++ b/drivers/net/dwc_eth_xgmac_socfpga.c
@@ -80,6 +80,7 @@ static int xgmac_probe_resources_socfpga(struct udevice *dev)
                modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII;
                break;
        case PHY_INTERFACE_MODE_RGMII:
+       case PHY_INTERFACE_MODE_RGMII_ID:
                modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII;
                break;
        default:
-- 
2.26.2

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