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.

 

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

 

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, 10 months ago by Arian Suarez.
• This reply was modified 3 years, 10 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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