So the far, GXL SoCs were using the generic mmio register based mdio
multiplexer. This properly sets one of the glue register but the SoC
actually has 3 of those registers.
One of them sets the ID under which the internal phy will advertise
itself. If nothing sets this register before linux boots (like u-boot), the
internal phy path is broken.
To address this problem, a dedicated MDIO mux driver has been
introduced. Switch to this new driver.
Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 25 +++++++++++-----------
1 file changed, 13 insertions(+), 12 deletions(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index 6f3c2bc36919..17bcfa4702e1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -773,16 +773,23 @@ mux {
};
};
- eth-phy-mux@55c {
- compatible = "mdio-mux-mmioreg", "mdio-mux";
+ eth_phy_mux: mdio@558 {
+ reg = <0x0 0x558 0x0 0xc>;
+ compatible = "amlogic,gxl-mdio-mux";
#address-cells = <1>;
#size-cells = <0>;
- reg = <0x0 0x55c 0x0 0x4>;
- mux-mask = <0xffffffff>;
+ clocks = <&clkc CLKID_FCLK_DIV4>;
+ clock-names = "ref";
mdio-parent-bus = <&mdio0>;
- internal_mdio: mdio@e40908ff {
- reg = <0xe40908ff>;
+ external_mdio: mdio@0 {
+ reg = <0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ internal_mdio: mdio@1 {
+ reg = <0x1>;
#address-cells = <1>;
#size-cells = <0>;
@@ -793,12 +800,6 @@ internal_phy: ethernet-phy@8 {
max-speed = <100>;
};
};
-
- external_mdio: mdio@2009087f {
- reg = <0x2009087f>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
};
};
--
2.39.2
