DART-6UL Ethernet
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DART-6UL - Ethernet
Testing
There are two 100MB/s ports on the kit, eth0 & eth1.
On Host:
$ ifconfig (to get the IP address) $ iperf3 -s
On Client:
$ iperf3 -c <IP_ADDRESS_OF_IPERF_SERVER> -u -b 100M
Using only one Ethernet port
Apply the following patch to the Linux kernel source, for removing the second Ethernet port, in case your own custom carrier board only has one and doesn't have the second Ethernet phy:
diff --git a/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi b/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi
index f79a356..032ed00 100644
--- a/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi
+++ b/arch/arm/boot/dts/imx6ul-imx6ull-var-dart-common.dtsi
@@ -159,17 +159,6 @@
phy-reset-on-resume;
phy-handle = <ðphy0>;
status = "okay";
-};
-
-&fec2 {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_enet2>;
- phy-mode = "rmii";
- phy-handle = <ðphy1>;
- phy-reset-gpios=<&gpio1 10 1>;
- phy-reset-duration=<100>;
- phy-reset-on-resume;
- status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
@@ -181,14 +170,6 @@
clock-names = "rmii-ref";
reg = <1>;
};
-
- ethphy1: ethernet-phy@3 {
- compatible = "ethernet-phy-ieee802.3-c22";
- micrel,rmii-reference-clock-select-25-mhz;
- clocks = <&rmii_ref_clk>;
- clock-names = "rmii-ref";
- reg = <3>;
- };
};
};
@@ -460,8 +441,8 @@
fsl,pins = <
MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 0x1b0b0 /* User LED */
MX6UL_PAD_GPIO1_IO00__GPIO1_IO00 0x17059 /* User Button */
- MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
- MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
+ MX6UL_PAD_GPIO1_IO07__ENET1_MDC 0x1b0b0
+ MX6UL_PAD_GPIO1_IO06__ENET1_MDIO 0x1b0b0
#ifdef WIFI
MX6UL_PAD_GPIO1_IO03__REF_CLK_32K 0x03029 /* WLAN Slow Clock */
#endif
@@ -481,20 +462,6 @@
>;
};
- pinctrl_enet2: enet2grp {
- fsl,pins = <
- MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN 0x1b0b0
- MX6UL_PAD_ENET2_RX_ER__ENET2_RX_ER 0x1b0b0
- MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00 0x1b0b0
- MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01 0x1b0b0
- MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN 0x1b0b0
- MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00 0x1b0b0
- MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01 0x1b0b0
- MX6UL_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 0x4001b031
- MX6UL_PAD_JTAG_MOD__GPIO1_IO10 0x1b0b0
- >;
- };
-
pinctrl_flexcan1: flexcan1grp{
fsl,pins = <
MX6UL_PAD_LCD_DATA09__FLEXCAN1_RX 0x1b020
Notes:
- You can follow the "Build Linux from source code" guide to get the Linux kernel source, apply the above patch, build only the device trees and copy them to your SD card.
- On older kernel releases the relevant file to edit is called imx6ul-var-dart.dtsi