Hi,
I am using the Linux 5.3 from nxp on my board (with ls1012a). See the Figure 1 below．
Figure 1: Connection between ethernet switch and ls1012a
What I did:
- I enabled the spi-fsl-dspi, ksz9477_spi(compatiable with 9897), fsl-ppfe modules in menuconfig.
- Turned on the dspi node in my device tree source.
- In device treee source, added sub node under dspi node.
When I turned on the board, the dmesg output for dspi is shown as Figure 2.
Figure 2: fsl-dspi output
When the board is turned on, I can see three interfaces lo, eth0 and eth1. See figure 3.
Figure 3: lo, eth0,and eth1
I configured eth0 with a static ip and a proper netmask, also I set up the route table, see Figure 4.
Figure 4: eth0 with static ip
But when I tried to ping an other device connected to my board directly(in the same network). It failed with +4 errors. See Figure 5.
Figure 5: Ping with errors
I assume the problem is a result of incorrect device tree. I modified fsl-ls1012a-rdb.dts(reference board device tree) to be my device tree source. Figure 6 is the pfe node. In my board, I am using dspi to control the ethernet switch(ksz9897), but in ls1012ardb, it uses mdio instead. I am not sure if I should delete the mdio node here or how to connect ethernet switch in device tree. In the pfe node below, there is mdio sub node.
In dspi node, I added a sub node for the ethernet switch. see Figure 7 below. So I am not sure where is the problem, is it between PFE and switch or between DSPI and switch.
Does anyone know how to solve this problem? Thank you.
Figure 7: dspi node with switch sub node
HI yipingwang
Thank you. I tried the pfe_mac0 node you gave me.
The ping command is still not working. But the ping result changed from +4 errors to 0 received, see below.
Figure 1: ping result: 0 received, 100% packet loss
Also there is no dmesg output for the etherenet swith node (ksz9477, which is connected to dspi).
It seems that the PFE MAC 0 is not talking to the ethernet switch at all. All packets stopped at MAC. I assume that, in the device tree, the PFE MAC 0 is not connected to the ethernet switch logically yet or the switch on the dspi is not detected. Port 7 of this switch is connected to PFE MAC 0, see figure below, LAN1, LAN2 and LAN3 are used to plug in the etherenet cable.
Figure 2: Ethernet switch connection
In the previous pfe_mac0 node(for ls1012a-rdb), I noticed there is a variable called phy-handle, I am not sure if it is used to connect the switch to the PFE MAC. see figure below:
Figure 3: pfe_mac0 node for ls1012a-rdb reference board.
Also the dmesg about pfe is shown below:
Figure 4: dmesg PFE output
Any help will be much appreciated,
thank you!
Kai
Hello Kai Wu,
Please refer to L2switch design in T1040RDB.
8 Gigabit switch ports are external ports and are connected to external Phys
2 switch ports (2.5G) are connected to FMan ports
Internal ports connect to DPAA are defined as the following.
enet0: ethernet@e0000 {
fixed-link = <0 1 1000 0 0>;
phy-connection-type = "sgmii";
rcpm-wakeup = <&rcpm 0x80000000>;
};
enet1: ethernet@e2000 {
fixed-link = <1 1 1000 0 0>;
phy-connection-type = "sgmii";
rcpm-wakeup = <&rcpm 0x40000000>;
};
Thanks,
Yiping
