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| author | Marek Behún <marek.behun@nic.cz> | 2022-04-27 12:41:49 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2022-05-04 07:05:51 +0200 |
| commit | 00b1bad961fff51db71573f5fc6e4e35b47381b2 (patch) | |
| tree | 5d5a53b7a8c0058b05ccd8a2d9d70972dbbb9279 | |
| parent | a2b2542992a96662740a39aad66e173a857dff2a (diff) | |
| download | u-boot-00b1bad961fff51db71573f5fc6e4e35b47381b2.zip u-boot-00b1bad961fff51db71573f5fc6e4e35b47381b2.tar.gz u-boot-00b1bad961fff51db71573f5fc6e4e35b47381b2.tar.bz2 | |
net: mdio-uclass: add dm_phy_find_by_ofnode() helper
Add helper to resolve PHY node from it's ofnode via DM MDIO subsystem.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
| -rw-r--r-- | include/miiphy.h | 9 | ||||
| -rw-r--r-- | net/mdio-uclass.c | 22 |
2 files changed, 31 insertions, 0 deletions
diff --git a/include/miiphy.h b/include/miiphy.h index 110921f..c66a184 100644 --- a/include/miiphy.h +++ b/include/miiphy.h @@ -189,6 +189,15 @@ int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 va int dm_mdio_reset(struct udevice *mdio_dev); /** + * dm_phy_find_by_ofnode - Find PHY device by ofnode + * + * @phynode: PHY's ofnode + * + * Return: pointer to phy_device, or NULL on error + */ +struct phy_device *dm_phy_find_by_ofnode(ofnode phynode); + +/** * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO * * @mdiodev: mdio device the PHY is accesible on diff --git a/net/mdio-uclass.c b/net/mdio-uclass.c index 7593618..4401492 100644 --- a/net/mdio-uclass.c +++ b/net/mdio-uclass.c @@ -129,6 +129,28 @@ static int dm_mdio_pre_remove(struct udevice *dev) return 0; } +struct phy_device *dm_phy_find_by_ofnode(ofnode phynode) +{ + struct mdio_perdev_priv *pdata; + struct udevice *mdiodev; + u32 phy_addr; + + if (ofnode_read_u32(phynode, "reg", &phy_addr)) + return NULL; + + if (uclass_get_device_by_ofnode(UCLASS_MDIO, + ofnode_get_parent(phynode), + &mdiodev)) + return NULL; + + if (device_probe(mdiodev)) + return NULL; + + pdata = dev_get_uclass_priv(mdiodev); + + return phy_find_by_mask(pdata->mii_bus, BIT(phy_addr)); +} + struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr, struct udevice *ethdev, phy_interface_t interface) |