[PATCH 46/53] net: eqos: add function to get phy node and address

[Peng Fan (OSS)]

From: Ye Li <ye...@nxp.com>

Since new atheros PHY driver needs to access its PHY node through
phy device, we have to assign the phy node in ethernet controller
driver. Otherwise the PHY driver will fail to get some nodes
and properties.

Signed-off-by: Ye Li <ye...@nxp.com>
Signed-off-by: Peng Fan <peng....@nxp.com>
---
 drivers/net/dwc_eth_qos.c | 23 ++++++++++++++++++++---
 drivers/net/dwc_eth_qos.h |  1 +
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dwc_eth_qos.c b/drivers/net/dwc_eth_qos.c
index 1f24f5cb0cf..a4380d17d9c 100644
--- a/drivers/net/dwc_eth_qos.c
+++ b/drivers/net/dwc_eth_qos.c
@@ -719,6 +719,24 @@ static int eqos_read_rom_hwaddr(struct udevice *dev)
        return !is_valid_ethaddr(pdata->enetaddr);
 }
 
+static int eqos_get_phy_addr(struct eqos_priv *priv, struct udevice *dev)
+{
+       struct ofnode_phandle_args phandle_args;
+       int reg;
+
+       if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
+                                      &phandle_args)) {
+               debug("Failed to find phy-handle");
+               return -ENODEV;
+       }
+
+       priv->phy_of_node = phandle_args.node;
+
+       reg = ofnode_read_u32_default(phandle_args.node, "reg", 0);
+
+       return reg;
+}
+
 static int eqos_start(struct udevice *dev)
 {
        struct eqos_priv *eqos = dev_get_priv(dev);
@@ -767,9 +785,7 @@ static int eqos_start(struct udevice *dev)
         */
        if (!eqos->phy) {
                int addr = -1;
-#ifdef CONFIG_DM_ETH_PHY
-               addr = eth_phy_get_addr(dev);
-#endif
+               addr = eqos_get_phy_addr(eqos, dev);
 #ifdef DWC_NET_PHYADDR
                addr = DWC_NET_PHYADDR;
 #endif
@@ -788,6 +804,7 @@ static int eqos_start(struct udevice *dev)
                        }
                }
 
+               eqos->phy->node = eqos->phy_of_node;
                ret = phy_config(eqos->phy);
                if (ret < 0) {
                        pr_err("phy_config() failed: %d", ret);
diff --git a/drivers/net/dwc_eth_qos.h b/drivers/net/dwc_eth_qos.h
index ce90e1f1ce1..f470189e8d4 100644
--- a/drivers/net/dwc_eth_qos.h
+++ b/drivers/net/dwc_eth_qos.h
@@ -261,6 +261,7 @@ struct eqos_priv {
        struct clk clk_slave_bus;
        struct mii_dev *mii;
        struct phy_device *phy;
+       ofnode phy_of_node;
        u32 max_speed;
        void *descs;
        int tx_desc_idx, rx_desc_idx;
-- 
2.36.0