Part Number: AM3352
Other Parts Discussed in Thread: TPS65217
Hi!
Im working on a custom card with an am3352 and we want to have dual ethernet with two separate MACs but I cant get it eth0 to work. The ethernets should run in rmii mode.
Eth1 works well. Eth0 shows up in linux but it cant seam to reach the DHCP server, if I give it a static IP it cant reach or ping other devices (that I can reach from eth1). Both the link and activity LED on the eth0 RJ45 connector is on regardless if the is a cable connected to it. The eth1 appears to be normal.
If i do a "ip a" (Im running debian) it looks as if they have to same MAC:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether f4:e1:1e:55:32:88 brd ff:ff:ff:ff:ff:ff
inet6 fe80::f6e1:1eff:fe55:3288/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether f4:e1:1e:55:32:88 brd ff:ff:ff:ff:ff:ff inet 192.168.1.71/24 brd 192.168.1.255 scope global dynamic eth1
valid_lft 86347sec preferred_lft 86347sec
inet6 fe80::f6e1:1eff:fe55:3288/64 scope link
valid_lft forever preferred_lft forever
The dts file (selected parts):
phy0_default: phy0_default {
pinctrl-single,pins = <
AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | 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_PULLDOWN | MUX_MODE1) /* (K17) gmii1_txd0.rmii1_txd0 */
AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE1) /* (K16) gmii1_txd1.rmii1_txd1 */
AM33XX_IOPAD(0x940, PIN_INPUT_PULLDOWN | MUX_MODE1) /* (M16) gmii1_rxd0.rmii1_rxd0 */
AM33XX_IOPAD(0x93c, PIN_INPUT_PULLDOWN | MUX_MODE1) /* (L15) gmii1_rxd1.rmii1_rxd1 */
AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0) /* (H18) rmii1_refclk.rmii1_refclk */
>;
};
phy1_default: phy1_default {
pinctrl-single,pins = <
AM33XX_IOPAD(0x870, PIN_INPUT_PULLDOWN | MUX_MODE3) /* (T17) gpmc_wait0.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_PULLDOWN | MUX_MODE3) /* (V15) gpmc_a5.rmii2_txd0 */
AM33XX_IOPAD(0x850, PIN_OUTPUT_PULLDOWN | MUX_MODE3) /* (R14) gpmc_a4.rmii2_txd1 */
AM33XX_IOPAD(0x86c, PIN_INPUT_PULLDOWN | MUX_MODE3) /* (V17) gpmc_a11.rmii2_rxd0 */
AM33XX_IOPAD(0x868, PIN_INPUT_PULLDOWN | MUX_MODE3) /* (T16) gpmc_a10.rmii2_rxd1 */
AM33XX_IOPAD(0x908, PIN_INPUT_PULLDOWN | MUX_MODE1) /* (H16) gmii1_col.rmii2_refclk */
>;
};
davinci_mdio_default: davinci_mdio_default {
pinctrl-single,pins = <
AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0) /* (M18) mdio_clk.mdio_clk */
AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* (M17) mdio_data.mdio_data */
>;
};
&cpsw_emac0 {
status = "okay";
phy_id = <&davinci_mdio>, <0>;
phy-mode = "rmii";
dual_emac_res_vlan = <1>;
};
&cpsw_emac1 {
status = "okay";
phy_id = <&davinci_mdio>, <1>;
phy-mode = "rmii";
dual_emac_res_vlan = <2>;
};
&phy_sel {
rmii-clock-ext;
};
&mac {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&phy0_default>,<&phy1_default>;
dual_emac = <1>;
};
&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
status = "okay";
};
Any ideas what I'm doing wrong?
Best regards,
Linus
