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

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

drivers/net/ethernet/renesas/rswitch.c

+12 −3
Original line number Diff line number Diff line
@@ -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)

{

	u32 max_speed;

	int err;



	if (!rdev->np_port)

		return 0;	/* ignored */



	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) {

	case PHY_INTERFACE_MODE_MII:

		rdev->etha->speed = SPEED_100;
@@ -1090,11 +1100,10 @@ static int rswitch_etha_get_params(struct rswitch_device *rdev) 
		rdev->etha->speed = SPEED_2500;

		break;

	default:

		err = -EINVAL;

		break;

		return -EINVAL;

	}



	return err;

	return 0;

}



static int rswitch_mii_register(struct rswitch_device *rdev)