The beagleplay dts was using a bit-bang gpio mdio bus as a work-around
for errata i2329. However since commit d04807b80691 ("net: ethernet: ti:
davinci_mdio: Add workaround for errata i2329") the mdio driver itself
already takes care of this errata for effected silicon, which landed
well before the beagleplay dts. So i suspect the reason for the
workaround in upstream was simply due to copying the vendor dts.
Switch the dts to the ti,cpsw-mdio instead so it described the actual
hardware and is consistent with other AM625 based boards
Signed-off-by: Sjoerd Simons <sjoerd@xxxxxxxxxxxxx>
---
.../arm64/boot/dts/ti/k3-am625-beagleplay.dts | 42 +++++++------------
1 file changed, 16 insertions(+), 26 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
index eadbdd9ffe37..49fb21ba62b0 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-beagleplay.dts
@@ -29,7 +29,6 @@ aliases {
i2c3 = &main_i2c3;
i2c4 = &wkup_i2c0;
i2c5 = &mcu_i2c0;
- mdio-gpio0 = &mdio0;
mmc0 = &sdhci0;
mmc1 = &sdhci1;
mmc2 = &sdhci2;
@@ -231,27 +230,6 @@ simple-audio-card,codec {
};
};
- /* Workaround for errata i2329 - just use mdio bitbang */
- mdio0: mdio {
- compatible = "virtual,mdio-gpio";
- pinctrl-names = "default";
- pinctrl-0 = <&mdio0_pins_default>;
- gpios = <&main_gpio0 86 GPIO_ACTIVE_HIGH>, /* MDC */
- <&main_gpio0 85 GPIO_ACTIVE_HIGH>; /* MDIO */
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpsw3g_phy0: ethernet-phy@0 {
- reg = <0>;
- };
-
- cpsw3g_phy1: ethernet-phy@1 {
- reg = <1>;
- reset-gpios = <&main_gpio1 5 GPIO_ACTIVE_LOW>;
- reset-assert-us = <25>;
- reset-deassert-us = <60000>; /* T2 */
- };
- };
};
&main_pmx0 {
@@ -312,8 +290,8 @@ AM62X_IOPAD(0x00b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
mdio0_pins_default: mdio0-default-pins {
pinctrl-single,pins = <
- AM62X_IOPAD(0x0160, PIN_OUTPUT, 7) /* (AD24) MDIO0_MDC.GPIO0_86 */
- AM62X_IOPAD(0x015c, PIN_INPUT, 7) /* (AB22) MDIO0_MDIO.GPIO0_85 */
+ AM62X_IOPAD(0x0160, PIN_OUTPUT, 0) /* (AD24) MDIO0_MDC */
+ AM62X_IOPAD(0x015c, PIN_INPUT, 0) /* (AB22) MDIO0_MDIO */
>;
};
@@ -611,8 +589,20 @@ &cpsw_port2 {
};
&cpsw3g_mdio {
- /* Workaround for errata i2329 - Use mdio bitbang */
- status = "disabled";
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mdio0_pins_default>;
+
+ cpsw3g_phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ cpsw3g_phy1: ethernet-phy@1 {
+ reg = <1>;
+ reset-gpios = <&main_gpio1 5 GPIO_ACTIVE_LOW>;
+ reset-assert-us = <25>;
+ reset-deassert-us = <60000>; /* T2 */
+ };
};
&main_gpio0 {
--
2.43.0
