DESK-MX6UL-L/Peripherals/Ethernet
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| First DESK-MX6UL-L release | |||
| DESK-MX6UL-L 3.0.0 release | |||
| DESK-MX6UL-L 4.0.0 release | |||
| 2024/08/07 | DESK-MX6UL-L 4.2.x release | ||
Contents
Peripheral Ethernet[edit | edit source]
The ethernet interface is made available through the i.MX6UL fec interface which should be initialized on the device tree.
Device tree configuration[edit | edit source]
Axel ULite SOM[edit | edit source]
Here below is an example of device tree configuration used on standard DAVE's kit for the AXEL ULite SOM:
From imx6ul-axelulite.dtsi:
&fec1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet1>;
phy-mode = "rmii";
phy-handle = <ðphy0>;
status = "okay";
mdio {
#address-cells = <1>;
#size-cells = <0>;
ethphy0: ethernet-phy@3 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <3>;
micrel,led-mode = <1>;
clocks = <&clks IMX6UL_CLK_ENET_REF>;
clock-names = "rmii-ref";
};
};
};
...
...
&iomuxc {
...
...
pinctrl_enet1: enet1grp {
fsl,pins = <
MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER 0x1b0b0
MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b0b0
MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b0a8
MX6UL_PAD_GPIO1_IO07__ENET1_MDC 0x1b0b0
MX6UL_PAD_GPIO1_IO06__ENET1_MDIO 0x1b0b0
MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01 0x1b0b0 /* ETH_PHY_RST */
MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02 0x1b0b0 /* ETH_INT */
>;
};
...
...
};
RIALTO SBC[edit | edit source]
Here below is an example of device tree configuration used on standard DAVE's kit for the RIALTO SBC:
From imx6ul-lynx-som0022.dtsi:
...
...
&fec1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet1>;
phy-mode = "rmii";
phy-handle = <ðphy0>;
phy-reset-gpios = <&gpio5 1 GPIO_ACTIVE_HIGH>;
phy-reset-post-delay = <50>;
status = "okay";
fsl,dev_id = <0>;
mdio: mdio {
#address-cells = <1>;
#size-cells = <0>;
ethphy0: ethernet-phy@3 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0x03>;
micrel,led-mode = <1>;
clocks = <&clks IMX6UL_CLK_ENET_REF>;
clock-names = "rmii-ref";
};
};
};
...
...
&iomuxc {
...
...
pinctrl_enet1: enet1grp-1 {
fsl,pins = <
MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN 0x1b0b0
MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER 0x1b0b0
MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN 0x1b0b0
MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 0x4001b031
MX6UL_PAD_GPIO1_IO07__ENET1_MDC 0x1b0b0
MX6UL_PAD_GPIO1_IO06__ENET1_MDIO 0x1b0b0
>;
};
...
...
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
>;
};
...
...
}
...
...
From imx6ul-lynx-som0022-cb0090.dts:
...
...
&fec2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet2>;
phy-mode = "rmii";
phy-handle = <ðphy1>;
status = "okay";
};
&mdio {
ethphy1: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0>;
micrel,led-mode = <1>;
clocks = <&clks IMX6UL_CLK_ENET2_REF>;
clock-names = "rmii-ref";
};
};
...
...
Accessing the peripheral in Axel ULite SOM[edit | edit source]
AXEL ULite SOM provides the primary network interface mapped at eth0.
Linux messages at boot time[edit | edit source]
... ... [ 1.771162] fec 2188000.ethernet eth0: registered PHC device 0 [ 23.370105] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx ... ... [ 20.262485] Micrel KSZ8081 or KSZ8091 2188000.ethernet-1:03: attached PHY driver (mii_bus:phy_addr=2188000.ethernet-1:03, irq=POLL) ... ...
Cable connection:
... ... [ 93.046409] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx ... ...
Check the interface with ifconfig[edit | edit source]
root@desk-mx6ul-axelulite:~# ifconfig eth0
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.4.159 netmask 255.255.255.0 broadcast 192.168.4.255
inet6 fe80::bc0a:b6ff:fe9b:b0f8 prefixlen 64 scopeid 0x20<link>
ether be:0a:b6:9b:b0:f8 txqueuelen 1000 (Ethernet)
RX packets 331 bytes 36636 (35.7 KiB)
RX errors 0 dropped 47 overruns 0 frame 0
TX packets 77 bytes 11278 (11.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Test with iperf[edit | edit source]
root@desk-mx6ul-axelulite:~# iperf3 -t 5 -c 192.168.4.47 Connecting to host 192.168.4.47, port 5201 [ 5] local 192.168.4.159 port 56244 connected to 192.168.4.47 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 11.3 MBytes 94.7 Mbits/sec 0 143 KBytes [ 5] 1.00-2.00 sec 10.8 MBytes 90.4 Mbits/sec 0 143 KBytes [ 5] 2.00-3.00 sec 10.8 MBytes 90.1 Mbits/sec 0 150 KBytes [ 5] 3.00-4.00 sec 10.9 MBytes 91.2 Mbits/sec 0 150 KBytes [ 5] 4.00-5.00 sec 10.8 MBytes 90.3 Mbits/sec 0 157 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 54.4 MBytes 91.3 Mbits/sec 0 sender [ 5] 0.00-5.05 sec 54.1 MBytes 89.9 Mbits/sec receiver iperf Done.
Accessing the peripheral in RIALTO SBC[edit | edit source]
RIALTO SBC provides the primary network interface mapped at eth0.
Linux messages at boot time[edit | edit source]
... ... [ 2.501689] fec 2188000.ethernet eth0: registered PHC device 0 [ 3.215129] fec 20b4000.ethernet eth1: registered PHC device 1 ... ... [ 22.091756] Micrel KSZ8081 or KSZ8091 2188000.ethernet-1:00: attached PHY driver (mii_bus:phy_addr=2188000.ethernet-1:00, irq=POLL) [ 22.201649] Micrel KSZ8081 or KSZ8091 2188000.ethernet-1:03: attached PHY driver (mii_bus:phy_addr=2188000.ethernet-1:03, irq=POLL) ... ... [ 25.209227] fec 20b4000.ethernet eth1: Link is Up - 100Mbps/Full - flow control rx/tx [ 25.289308] fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx ... ...
Check the interface with ifconfig[edit | edit source]
root@desk-mx6ul-rialto:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.89 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::72b3:d5ff:fe3e:ad88 prefixlen 64 scopeid 0x20<link>
ether 70:b3:d5:3e:ad:88 txqueuelen 1000 (Ethernet)
RX packets 46 bytes 4780 (4.6 KiB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 24 bytes 3909 (3.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.11.89 netmask 255.255.255.0 broadcast 192.168.11.255
inet6 fe80::72b3:d5ff:fe3e:ad89 prefixlen 64 scopeid 0x20<link>
ether 70:b3:d5:3e:ad:89 txqueuelen 1000 (Ethernet)
RX packets 49 bytes 5633 (5.5 KiB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 25 bytes 4007 (3.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
...
...
root@desk-mx6ul-rialto:~#
Test with iperf[edit | edit source]
root@desk-mx6ul-rialto:~# iperf3 -t 5 -c 192.168.0.99 Connecting to host 192.168.0.99, port 5201 [ 5] local 192.168.0.89 port 39480 connected to 192.168.0.99 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 11.2 MBytes 94.0 Mbits/sec 0 147 KBytes [ 5] 1.00-2.00 sec 10.9 MBytes 91.1 Mbits/sec 0 147 KBytes [ 5] 2.00-3.00 sec 10.7 MBytes 89.8 Mbits/sec 0 147 KBytes [ 5] 3.00-4.00 sec 10.8 MBytes 90.7 Mbits/sec 0 156 KBytes [ 5] 4.00-5.00 sec 10.8 MBytes 90.2 Mbits/sec 0 156 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 54.4 MBytes 91.2 Mbits/sec 0 sender [ 5] 0.00-5.04 sec 54.0 MBytes 89.9 Mbits/sec receiver iperf Done. root@desk-mx6ul-rialto:~# iperf3 -t 5 -c 192.168.11.99 Connecting to host 192.168.11.99, port 5201 [ 5] local 192.168.11.89 port 40244 connected to 192.168.11.99 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 11.3 MBytes 94.7 Mbits/sec 0 143 KBytes [ 5] 1.00-2.00 sec 10.8 MBytes 90.7 Mbits/sec 0 143 KBytes [ 5] 2.00-3.00 sec 10.8 MBytes 90.6 Mbits/sec 0 157 KBytes [ 5] 3.00-4.00 sec 10.6 MBytes 89.1 Mbits/sec 0 158 KBytes [ 5] 4.00-5.00 sec 10.8 MBytes 91.0 Mbits/sec 0 158 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 54.4 MBytes 91.2 Mbits/sec 0 sender [ 5] 0.00-5.04 sec 54.1 MBytes 90.0 Mbits/sec receiver iperf Done. root@desk-mx6ul-rialto:~#
