dts: imx: Add fixed-link property to HSC and DDC (imx53) devices
Those two boards are supposed to be run with a single u-boot binary.
There are notable differences though - HSC uses DSA switch (which
phy_id == 0x0) and DCC (DP83848C).
After the commit 3bf135b6c367
("drivers: net: phy: Ignore PHY ID 0 during PHY probing") the PHY devices
with phy_id == 0 are not created in U-Boot anymore. This caused regression
on HSC.
To fix this problem - the fec's 'fixed-link' node has been introduced and
the phy_id is not assessed anymore. This approach works on both boards.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
diff --git a/arch/arm/dts/imx53-kp-u-boot.dtsi b/arch/arm/dts/imx53-kp-u-boot.dtsi
index acab9b3..a112db9 100644
--- a/arch/arm/dts/imx53-kp-u-boot.dtsi
+++ b/arch/arm/dts/imx53-kp-u-boot.dtsi
@@ -5,6 +5,13 @@
* SPDX-License-Identifier: GPL-2.0+ or X11
*/
+&fec {
+ fixed-link { /* RMII fixed link for both HSC|DDC */
+ speed = <100>;
+ full-duplex;
+ };
+};
+
&pmic {
u-boot,i2c-transaction-bytes = <3>;
};