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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: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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parent
5cb630925b
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04c77d9130
1 changed files with 12 additions and 3 deletions
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@ -1072,13 +1072,23 @@ static struct device_node *rswitch_get_port_node(struct rswitch_device *rdev)
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static int rswitch_etha_get_params(struct rswitch_device *rdev)
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{
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u32 max_speed;
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int err;
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if (!rdev->np_port)
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return 0; /* ignored */
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err = of_get_phy_mode(rdev->np_port, &rdev->etha->phy_interface);
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if (err)
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return err;
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err = of_property_read_u32(rdev->np_port, "max-speed", &max_speed);
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if (!err) {
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rdev->etha->speed = max_speed;
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return 0;
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}
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/* if no "max-speed" property, let's use default speed */
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switch (rdev->etha->phy_interface) {
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case PHY_INTERFACE_MODE_MII:
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rdev->etha->speed = SPEED_100;
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@ -1090,11 +1100,10 @@ static int rswitch_etha_get_params(struct rswitch_device *rdev)
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rdev->etha->speed = SPEED_2500;
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break;
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default:
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err = -EINVAL;
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break;
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return -EINVAL;
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}
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return err;
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return 0;
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}
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static int rswitch_mii_register(struct rswitch_device *rdev)
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