Commit 04c77d91 authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by David S. Miller

net: renesas: rswitch: Add "max-speed" handling

The previous code set the speed by the interface mode of PHY.
Also this hardware has a restriction which cannot change the speed
at runtime. To use other speed, add "max-speed" handling to set
each port's speed if needed.
Signed-off-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5cb63092
...@@ -1072,13 +1072,23 @@ static struct device_node *rswitch_get_port_node(struct rswitch_device *rdev) ...@@ -1072,13 +1072,23 @@ static struct device_node *rswitch_get_port_node(struct rswitch_device *rdev)
static int rswitch_etha_get_params(struct rswitch_device *rdev) static int rswitch_etha_get_params(struct rswitch_device *rdev)
{ {
u32 max_speed;
int err; int err;
if (!rdev->np_port) if (!rdev->np_port)
return 0; /* ignored */ return 0; /* ignored */
err = of_get_phy_mode(rdev->np_port, &rdev->etha->phy_interface); err = of_get_phy_mode(rdev->np_port, &rdev->etha->phy_interface);
if (err)
return err;
err = of_property_read_u32(rdev->np_port, "max-speed", &max_speed);
if (!err) {
rdev->etha->speed = max_speed;
return 0;
}
/* if no "max-speed" property, let's use default speed */
switch (rdev->etha->phy_interface) { switch (rdev->etha->phy_interface) {
case PHY_INTERFACE_MODE_MII: case PHY_INTERFACE_MODE_MII:
rdev->etha->speed = SPEED_100; rdev->etha->speed = SPEED_100;
...@@ -1090,11 +1100,10 @@ static int rswitch_etha_get_params(struct rswitch_device *rdev) ...@@ -1090,11 +1100,10 @@ static int rswitch_etha_get_params(struct rswitch_device *rdev)
rdev->etha->speed = SPEED_2500; rdev->etha->speed = SPEED_2500;
break; break;
default: default:
err = -EINVAL; return -EINVAL;
break;
} }
return err; return 0;
} }
static int rswitch_mii_register(struct rswitch_device *rdev) static int rswitch_mii_register(struct rswitch_device *rdev)
......
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