Tool/software: TI C/C++ Compiler
Im trying to config the dts of kernel 4.19 for a upgrade of 3.2. The ethernet transceiver are double lan8710.
Now the eth0 is working well but eth1 could only transmit but not receive.
I use wireshark for the test. As i ping my pc, I got the arp packet from eth1 and my pc return the mac address for arp, but eth1 would not reply any other packet.
The same test to eth0 has no problem.
The ifconfig command shows no rx packets from eth1:
root@am335x-evm:~# ifconfig
eth0 Link encap:Ethernet HWaddr 7C:38:66:FB:47:41
inet addr:192.168.3.11 Bcast:192.168.3.255 Mask:255.255.255.0
inet6 addr: fe80::7e38:66ff:fefb:4741/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:129 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13962 (13.6 KiB) TX bytes:986 (986.0 B)
Interrupt:40
eth1 Link encap:Ethernet HWaddr 7C:38:66:FB:47:43
inet addr:192.168.4.11 Bcast:192.168.4.255 Mask:255.255.255.0
inet6 addr: fe80::7e38:66ff:fefb:4743/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:384 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:24744 (24.1 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1689 errors:0 dropped:0 overruns:0 frame:0
TX packets:1689 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:120136 (117.3 KiB) TX bytes:120136 (117.3 KiB)
I checked the register in uboot by mii command, found nothing wrong.
My dts is as fllowing:
cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 1 */
AM33XX_IOPAD(0x90c, PIN_INPUT_PULLUP | MUX_MODE1) /* (H17) gmii1_crs.rmii1_crs_dv */
AM33XX_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE1) /* (J15) gmii1_rxer.rmii1_rxer */
AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* (J16) gmii1_txen.rmii1_txen */
AM33XX_IOPAD(0x928, PIN_OUTPUT | MUX_MODE1) /* (K17) gmii1_txd0.rmii1_txd0 */
AM33XX_IOPAD(0x924, PIN_OUTPUT | MUX_MODE1) /* (K16) gmii1_txd1.rmii1_txd1 */
AM33XX_IOPAD(0x940, PIN_INPUT_PULLUP | MUX_MODE1) /* (M16) gmii1_rxd0.rmii1_rxd0 */
AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE1) /* (L15) gmii1_rxd1.rmii1_rxd1 */
AM33XX_IOPAD(0x944, PIN_INPUT | MUX_MODE0) /* (H18) rmii1_refclk.rmii1_refclk */
/* Slave 2 */
AM33XX_IOPAD(0x864, PIN_INPUT_PULLUP | MUX_MODE3) /* (U16) gpmc_a9.rmii2_crs_dv */
AM33XX_IOPAD(0x874, PIN_INPUT_PULLDOWN | MUX_MODE3) /* (U17) gpmc_wpn.rmii2_rxer */
AM33XX_IOPAD(0x840, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* (R13) gpmc_a0.rmii2_txen */
AM33XX_IOPAD(0x854, PIN_OUTPUT | MUX_MODE3) /* (V15) gpmc_a5.rmii2_txd0 */
AM33XX_IOPAD(0x850, PIN_OUTPUT | MUX_MODE3) /* (R14) gpmc_a4.rmii2_txd1 */
AM33XX_IOPAD(0x86c, PIN_INPUT_PULLUP | MUX_MODE3) /* (V17) gpmc_a11.rmii2_rxd0 */
AM33XX_IOPAD(0x868, PIN_INPUT_PULLUP | MUX_MODE3) /* (T16) gpmc_a10.rmii2_rxd1 */
AM33XX_IOPAD(0x908, PIN_INPUT | MUX_MODE1) /* (H16) gmii1_col.rmii2_refclk */
>;
};
&mac {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
dual_emac;
status = "okay";
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
status = "okay";
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <1>;
phy-mode = "rmii";
dual_emac_res_vlan = <1>;
};
&cpsw_emac1 {
phy_id = <&davinci_mdio>, <0>;
phy-mode = "rmii";
dual_emac_res_vlan = <2>;
};
&phy_sel {
rmii-clock-ext;
};
I have no more idea about it, and i have changed pin PULLUP or DOWN as lan8710's datasheet. But it seems no affection.
What could do more for the problem?
