DP83825I: Need info for DP83825I DTS to call driver or load

Hi Suraj,

You should not need to change your .yaml file.

Suraj Magar said:

One more question will it affect suppose mdio - 0/1 provide?

What do you mean by this question? Are you asking about error '1.300022] davinci_mdio 8000f00.mdio: phy[1]: device 8000f00.mdio:01, driver unknown'? This may be caused by errors in your driver configuration files - please check those. 

Best regards,
Melissa

Hi Melissa,

thanks for response!

Will try to provide our driver config.

Actually we are using DP83825I so will provide CONFIG_DP83825I_PHY=y let me know if it is fine or need to provide extra.

and for DTS binding. this we have structure.

&cpsw3g {
pinctrl-names = "default";
pinctrl-0 = <&main_mdio1_pins_default
&main_rgmii1_pins_default
&main_rmii2_pins_default>;
};

&cpsw_port1 {
phy-mode = "rgmii-rxid";v
phy-handle = <&cpsw3g_phy0>;
};

&cpsw_port2 {
phy-mode = "rmii";
phy-handle = <&cpsw3g_phy1>;
};

&cpsw3g_mdio {
cpsw3g_phy0: ethernet-phy@0 {
reg = <0>;
rx-internal-delay-ps = <1>;
tx-internal-delay-ps = <1>;
};

cpsw3g_phy1: ethernet-phy@1 {
reg = <1>;

reset-gpios = <&main_gpio1 5 GPIO_ACTIVE_LOW>;
reset-assert-us = <25>;
reset-deassert-us = <60000>; /* T1 */
rx-internal-delay-ps = <1>;
tx-internal-delay-ps = <1>;

};
};

For pinmuxing this is we have and we are dealing with phy1 only and rmii2. 

main_rmii2_pins_default: main_rmii2-pins-default { 
pinctrl-single,pins = <
AM62X_IOPAD(0x0184, PIN_INPUT, 1) /* (AE23) RMII2_RXD0 */
AM62X_IOPAD(0x0188, PIN_INPUT, 1) /* (AB20) RMII2_RXD1 */
AM62X_IOPAD(0x0180, PIN_INPUT, 1) /* (AD23) RMII2_REF_CLK */

AM62X_IOPAD(0x017c, PIN_INPUT, 1) /* (AD22) RMII2_RX_ER */
AM62X_IOPAD(0x016c, PIN_OUTPUT, 1) /* (Y18) RMII2_TXD0 */
AM62X_IOPAD(0x0170, PIN_OUTPUT, 1) /* (AA18) RMII2_TXD1 */
AM62X_IOPAD(0x0168, PIN_INPUT, 1) /* (AE21) RMII2_CRS_DV */
AM62X_IOPAD(0x0164, PIN_OUTPUT, 1) /* (AA19) RMII2_TX_EN */

AM62X_IOPAD(0x018c, PIN_OUTPUT, 7) /* (AC21) GPIO1_5 (PHY_RESET) */
AM62X_IOPAD(0x0190, PIN_INPUT, 7) /* (AE22) GPIO1_6 */
AM62X_IOPAD(0x0174, PIN_INPUT, 7) /* (AD21) GPIO0_91 */
AM62X_IOPAD(0x0178, PIN_INPUT, 7) /* (AC20) GPIO1_0 */
>;
};
main_rgmii1_pins_default: main_rgmii1-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x14c, PIN_INPUT, 0) /* (AB17) RGMII1_RD0 */
AM62X_IOPAD(0x150, PIN_INPUT, 0) /* (AC17) RGMII1_RD1 */
AM62X_IOPAD(0x154, PIN_INPUT, 0) /* (AB16) RGMII1_RD2 */
AM62X_IOPAD(0x158, PIN_INPUT, 0) /* (AA15) RGMII1_RD3 */
AM62X_IOPAD(0x148, PIN_INPUT, 0) /* (AD17) RGMII1_RXC */
AM62X_IOPAD(0x144, PIN_INPUT, 0) /* (AE17) RGMII1_RX_CTL */
AM62X_IOPAD(0x134, PIN_OUTPUT, 0) /* (AE20) RGMII1_TD0 */
AM62X_IOPAD(0x138, PIN_OUTPUT, 0) /* (AD20) RGMII1_TD1 */
AM62X_IOPAD(0x13c, PIN_OUTPUT, 0) /* (AE18) RGMII1_TD2 */
AM62X_IOPAD(0x140, PIN_OUTPUT, 0) /* (AD18) RGMII1_TD3 */
AM62X_IOPAD(0x130, PIN_OUTPUT, 0) /* (AE19) RGMII1_TXC */
AM62X_IOPAD(0x12c, PIN_OUTPUT, 0) /* (AD19) RGMII1_TX_CTL */
>;
};

For mdio pinmux this we are using

main_mdio1_pins_default: main_mdio1-pins-default { 
pinctrl-single,pins = <
AM62X_IOPAD(0x0160, PIN_OUTPUT, 0) /* (AD24) MDIO0_MDC */
AM62X_IOPAD(0x015c, PIN_INPUT, 0) /* (AB22) MDIO0_MDIO */
>;
};

Other than this nothing we updated or changed for ethernet.

Let me know if anything if i miss here.

Thanks,

Suraj.

Hi Suraj,

I am looping in the Siatra MPU team to assist you on this issue, they should respond within the next day or so. 

Best regards,

Melissa

Hello Soraj, 

Can you please  share the interface schematics diagram or the pinmux.

Regards,

Sreenivasa

Hi ,

Thanks for your response!

Here i provided schematic, pinmux , dts binding, console logs as well.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1237307/am625-am625-ethernet-not-working-for-dp83825irmqr/4699279#4699279

Let me know if anything we need more .

Thanks,

Suraj.

Hi team - wanted to update you that this issue is now resolved offline.

Regards,

Shashank

Resolution:

1. Modified DTS to reflect the rmii node pins to be the same as the output of TI SysConfig tool.

2. Added support for TI DP83822/5 PHY inside Linux kernel

3. Replaced modified kernel and device tree blob in the rootfs - /boot folder

Tested on client's hardware and confirmed thru videos and images of setup.

Regards,

Shashank