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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2018-10-16 12:15:49 -0700 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-10-23 13:42:43 +0200 |
| commit | 0247554a3629f59debb92e4188d45d3d98d2aded (patch) | |
| tree | 8ffe726b1eef8ba47e1758d2047ffd883d1a1f91 /drivers/net/phy | |
| parent | 01c926daf58ebd18728ddcd989c5e8f20751ecae (diff) | |
| download | barebox-0247554a3629f59debb92e4188d45d3d98d2aded.tar.gz barebox-0247554a3629f59debb92e4188d45d3d98d2aded.tar.xz | |
mdio_bus: Allow for non PHY-devices on MDIO buses
Instead of just creating a simple PHY device for every child of MDIO
bus node, add code to check if any of them have "compatible" property
set, as well as code to create a proper platform device for such
cases.
This change is useful for when MDIO bus and some of Ethernet ports are
connected to a switch or some other MDIO device that doesn't behave
like a generic PHY and can't be probed via its PHY ID.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index d7d6d8940b..cda05afae7 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -26,6 +26,7 @@ #include <errno.h> #include <linux/phy.h> #include <linux/err.h> +#include <of_device.h> #define DEFAULT_GPIO_RESET_ASSERT 1000 /* us */ #define DEFAULT_GPIO_RESET_DEASSERT 1000 /* us */ @@ -179,8 +180,19 @@ static int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) /* Loop over the child nodes and register a phy_device for each one */ for_each_available_child_of_node(np, child) { - if (!of_mdiobus_child_is_phy(child)) + if (!of_mdiobus_child_is_phy(child)) { + if (of_get_property(child, "compatible", NULL)) { + if (!of_platform_device_create(child, + &mdio->dev)) { + dev_err(&mdio->dev, + "Failed to create device " + "for %s\n", + child->full_name); + } + } + continue; + } ret = of_property_read_u32(child, "reg", &addr); if (ret) { |