Also, we found that it was useful for custom board issues to consult both 
beagleboard.org and TI-E2E, but for the latter, it was necessary to switch 
to the TI-SDK builds as TI didn't support beagleboard/Debian builds at the 
time..

FYI,

 
On Tuesday, January 12, 2021 at 12:43:08 PM UTC-5 [email protected] wrote:

> I have a 3 year old BB-X15 with a dual PHY at home.  I haven't touched 
> Linux for a couple of years, but am trying to pick it back up on a hobby 
> basis. We were working on a custom board with a dual PHY, but that effort 
> was put on hold a couple of year's ago.   Message me if you need me to try 
> anything on the BB-X15 which could help with your custom board.  If 
> something useful flushes out then it should be posted in public forums.
>
> On my BB-X15, I just downloaded the latest image and did dmesg|grep mdio 
> (without anything plugged into the Ethernet ports):
>
> debian@beaglebone:~$ dmesg|grep mdio
> [    1.112050] davinci_mdio 48485000.mdio: davinci mdio revision 1.6, bus 
> freq 1000000
> [    1.112061] libphy: 48485000.mdio: probed
> [    1.134048] davinci_mdio 48485000.mdio: phy[1]: device 
> 48485000.mdio:01, driver Micrel KSZ9031 Gigabit PHY
> [    1.134059] davinci_mdio 48485000.mdio: phy[2]: device 
> 48485000.mdio:02, driver Micrel KSZ9031 Gigabit PHY
> [    6.572870] Micrel KSZ9031 Gigabit PHY 48485000.mdio:01: attached PHY 
> driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=48485000.mdio:01, 
> irq=POLL)
> [    6.710705] Micrel KSZ9031 Gigabit PHY 48485000.mdio:02: attached PHY 
> driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=48485000.mdio:02, 
> irq=POLL)
> [   24.576701] Micrel KSZ9031 Gigabit PHY 48485000.mdio:01: attached PHY 
> driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=48485000.mdio:01, 
> irq=POLL)
> [   24.684787] Micrel KSZ9031 Gigabit PHY 48485000.mdio:02: attached PHY 
> driver [Micrel KSZ9031 Gigabit PHY] (mii_bus:phy_addr=48485000.mdio:02, 
> irq=POLL)
> debian@beaglebone:~$ 
>
> debian@beaglebone:~$ uname -a
> Linux beaglebone 4.14.108-ti-r131 #1buster SMP PREEMPT Tue Mar 24 19:18:36 
> UTC 2020 armv7l GNU/Linux
> debian@beaglebone:~$ cat /etc/debian_version
> 10.3
>
>
> uname -r
> cat /etc/debian_version: 
>
> Thanks!
>
>
> On Friday, January 8, 2021 at 2:13:17 PM UTC-5 acheesehead wrote:
>
>> I meant dmesg | grep mdio. Here is output.
>> beaglebone:~$ dmesg | grep mdio
>> [    1.319622] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus 
>> freq 1000000
>> [    1.319638] davinci_mdio 4a101000.mdio: detected phy mask ffffffef
>> [    1.338962] libphy: 4a101000.mdio: probed
>> [    1.338993] davinci_mdio 4a101000.mdio: phy[4]: device 
>> 4a101000.mdio:04, driver Atheros 8035 ethernet
>> [   19.657691] Atheros 8035 ethernet 4a101000.mdio:04: attached PHY 
>> driver [Atheros 8035 ethernet] (mii_bus:phy_addr=4a101000.mdio:04, irq=POLL)
>>
>> Relevant portions of device tree:
>>
>> cpsw_default: cpsw-default {
>> pinctrl-single,pins = <
>> /* Slave 1 */
>> AM33XX_PADCONF(AM335X_PIN_MII1_TX_EN, PIN_OUTPUT_PULLDOWN, MUX_MODE2) /* 
>> mii1_txen.rgmii1_tctl */
>> AM33XX_PADCONF(AM335X_PIN_MII1_RX_DV, PIN_INPUT_PULLDOWN, MUX_MODE2) /* 
>> mii1_rxdv.rgmii1_rctl */
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD3, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD2, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD1, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD0, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TX_CLK, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RX_CLK, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD3, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD2, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD1, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD0, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> /* Slave 2 */
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A0, PIN_OUTPUT_PULLDOWN, MUX_MODE2) /* 
>> mii2_txen.rgmii1_tctl */
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A1, PIN_INPUT_PULLDOWN, MUX_MODE2) /* 
>> mii2_rxdv.rgmii1_rctl */
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A2, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A3, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A4, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A5, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A6, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A7, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A8, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A9, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A10, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A11, PIN_INPUT_PULLDOWN, MUX_MODE2)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RX_ER, PIN_OUTPUT_PULLDOWN, MUX_MODE7) /* 
>> reset line */
>> >;
>> };
>>
>> cpsw_sleep: cpsw-sleep {
>> pinctrl-single,pins = <
>> /* Slave 1 reset value */
>> AM33XX_PADCONF(AM335X_PIN_MII1_TX_EN, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RX_DV, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD3, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD2, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD1, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TXD0, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_TX_CLK, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RX_CLK, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD3, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD2, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD1, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_MII1_RXD0, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> /* Slave 2 */
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A0, PIN_INPUT_PULLDOWN, MUX_MODE7) /* 
>> mii2_txen.rgmii1_tctl */
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A1, PIN_INPUT_PULLDOWN, MUX_MODE7) /* 
>> mii2_rxdv.rgmii1_rctl */
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A2, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A3, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A4, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A5, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A6, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A7, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A8, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A9, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A10, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> AM33XX_PADCONF(AM335X_PIN_GPMC_A11, PIN_INPUT_PULLDOWN, MUX_MODE7)
>> >;
>> };
>>
>> &mac {
>>         pinctrl-names = "default", "sleep";
>>         pinctrl-0 = <&cpsw_default>;
>>         pinctrl-1 = <&cpsw_sleep>;
>>         dual_emac = <1>;
>>         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>, <4>;
>>         phy-mode = "rgmii-txid";
>>         dual_emac_res_vlan = <1>;
>> };
>>
>> &cpsw_emac1 {
>>         phy_id = <&davinci_mdio>, <5>;
>>         phy-mode = "rgmii-txid";
>>         dual_emac_res_vlan = <2>;
>> };
>>
>>  
>>
>>
>>

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