OSD32MP1-RED Ethernet Issue

[Arian Suarez]

Hello,

We are building a custom OpenSTLinux image for the OSD32MP1-RED. As a base, we started with the OSD32MP15x_MinimalConfig STM32CubeMX project which did work and boots correctly. When we try to add in the Ethernet port on the red board using the OSD32MP1-RED Device Tree as a guide we get the following errors:

From uboot:

invalid MAC address in OTP 00:00:00:00:00:00 board_check_usb_power: Can't get adc device(-19) Net: Error: ethernet@5800a000 address not set. No ethernet found.

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invalid MAC address in OTP 00:00:00:00:00:00 board_check_usb_power: Can't get adc device(-19) Net:   Error: ethernet@5800a000 address not set. No ethernet found.

 

From dmesg:

 

root@stm32mp1-viper-heavy:/opt/copasat# dmesg | grep eth [ 0.000000] psci: probing for conduit method from DT. [ 1.466203] usbcore: registered new interface driver cdc_ether [ 3.007066] stm32-dwmac 5800a000.ethernet: PTP uses main clock [ 3.011603] stm32-dwmac 5800a000.ethernet: no reset control found [ 3.017747] stm32-dwmac 5800a000.ethernet: No phy clock provided... [ 3.024821] stm32-dwmac 5800a000.ethernet: User ID: 0x40, Synopsys ID: 0x42 [ 3.031212] stm32-dwmac 5800a000.ethernet: DWMAC4/5 [ 3.036192] stm32-dwmac 5800a000.ethernet: DMA HW capability register supported [ 3.043647] stm32-dwmac 5800a000.ethernet: RX Checksum Offload Engine supported [ 3.051071] stm32-dwmac 5800a000.ethernet: TX Checksum insertion supported [ 3.058080] stm32-dwmac 5800a000.ethernet: Wake-Up On Lan supported [ 3.064408] stm32-dwmac 5800a000.ethernet: TSO supported [ 3.069831] stm32-dwmac 5800a000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 3.077778] stm32-dwmac 5800a000.ethernet: device MAC address 8e:57:0e:ce:ca:94 [ 3.085220] stm32-dwmac 5800a000.ethernet: TSO feature enabled [ 34.060844] stm32-dwmac 5800a000.ethernet eth0: PHY [stmmac-0:03] driver [Micrel KSZ9031 Gigabit PHY] [ 36.539924] stm32-dwmac 5800a000.ethernet: Failed to reset the dma [ 36.544743] stm32-dwmac 5800a000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [ 36.577954] stm32-dwmac 5800a000.ethernet eth0: stmmac_open: Hw setup failed [ 42.952190] using random self ethernet address [ 42.955237] using random host ethernet address

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root@stm32mp1-viper-heavy:/opt/copasat# dmesg | grep eth [    0.000000] psci: probing for conduit method from DT. [    1.466203] usbcore: registered new interface driver cdc_ether [    3.007066] stm32-dwmac 5800a000.ethernet: PTP uses main clock [    3.011603] stm32-dwmac 5800a000.ethernet: no reset control found [    3.017747] stm32-dwmac 5800a000.ethernet: No phy clock provided... [    3.024821] stm32-dwmac 5800a000.ethernet: User ID: 0x40, Synopsys ID: 0x42 [    3.031212] stm32-dwmac 5800a000.ethernet: DWMAC4/5 [    3.036192] stm32-dwmac 5800a000.ethernet: DMA HW capability register supported [    3.043647] stm32-dwmac 5800a000.ethernet: RX Checksum Offload Engine supported [    3.051071] stm32-dwmac 5800a000.ethernet: TX Checksum insertion supported [    3.058080] stm32-dwmac 5800a000.ethernet: Wake-Up On Lan supported [    3.064408] stm32-dwmac 5800a000.ethernet: TSO supported [    3.069831] stm32-dwmac 5800a000.ethernet: Enable RX Mitigation via HW Watchdog Timer [    3.077778] stm32-dwmac 5800a000.ethernet: device MAC address 8e:57:0e:ce:ca:94 [    3.085220] stm32-dwmac 5800a000.ethernet: TSO feature enabled [   34.060844] stm32-dwmac 5800a000.ethernet eth0: PHY [stmmac-0:03] driver [Micrel KSZ9031 Gigabit PHY] [   36.539924] stm32-dwmac 5800a000.ethernet: Failed to reset the dma [   36.544743] stm32-dwmac 5800a000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed [   36.577954] stm32-dwmac 5800a000.ethernet eth0: stmmac_open: Hw setup failed [   42.952190] using random self ethernet address [   42.955237] using random host ethernet address

 

I’ve attached the STM32CubeMx project, the kernel device tree, and the tf-a device tree.

The version of software we are using:

– openstlinux-5.4-dunfell-mp1-20-06-24

– en.stm32cubemx-lin_v6-2-1

– STM32CubeMP1 Firmware Package V1.2.0

 

I don’t know what we are missing, has anyone seen this issue before?

 

[Arian Suarez]

STM32CubeMx config for reference.

• This reply was modified 3 years, 6 months ago by Arian Suarez.
• This reply was modified 3 years, 6 months ago by Arian Suarez.

Attachments:

1. 

   stm32cubemx_config.png
   

2. 

   stm32cubemx_clock.png
   

3. 

   stm32cubemx_config-1.png
   

[Neeraj Dantu]

Arian,

Please take a look at https://community.st.com/s/question/0D50X0000B8iBSB/stm32mp157-ethernet-problem for more information and solution on this issue. Essentially, the RED board does not implement a 125MHz clock connection between the PHY and STM32MP1. So, this reference clock needs to be generated internally.

Along with  https://github.com/octavosystems/OSD32MP1-RED-Device-tree/blob/main/linux-v4.19/stm32mp157c-osd32mp1-red.dtsi#L1808, You will also need to make changes to TF-A device tree like here: https://github.com/octavosystems/OSD32MP1-RED-Device-tree/blob/main/tf-a-v2.0/osd32mp1-red.dts#L164 and U-Boot device tree like here: https://github.com/octavosystems/OSD32MP1-RED-Device-tree/blob/main/u-boot-v2018.11/osd32mp1-red-u-boot.dtsi#L96.

 

For more information, please take a look at https://wiki.st.com/stm32mpu/wiki/Ethernet_device_tree_configuration#RGMII_with_Crystal_on_PHY-2C_no_125Mhz_from_PHY.

Best,

Neeraj

[Author]

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