PROCESSOR-SDK-AM69A: CPSW Driver Dependencies

Hello Emily,

CPSW2G driver is already part of the U-Boot and it works. driver/net/ti/am65-cpsw-nuss.c

This is enabled for tftp and any other network related applications on U-Boot. Is this something you are looking for?

- Keerthy

Related to this thread: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1340590/tda4vm-enable-cpsw0-main-domain-ethernet-switch-with-sgmii-interface-in-u-boot

In Linux we have SGMII port 5 configured as a mac-to-mac fixed link and it is working. We need the SGMII Interface on SERDES2 in Uboot.

Emily

Reminder of this issue. These are the errors I am getting in Uboot

drivers/soc/ti/k3-navss-ringacc.c:1022- k3-navss-ringacc ringacc@3c000000: Ring Accelerator probed rings:1024, gp-rings[878,128] sci-dev-id:315
drivers/soc/ti/k3-navss-ringacc.c:1027- k3-navss-ringacc ringacc@3c000000: dma-ring-reset-quirk: disabled
drivers/dma/ti/k3-udma.c:2607- udma: ti-udma dma-controller@31150000: No configuration for psi-l thread 0xca00
drivers/dma/ti/k3-udma.c:2607- udma: ti-udma dma-controller@31150000: No configuration for psi-l thread 0x4a00
drivers/dma/ti/k3-udma.c:766- udma: ti-udma dma-controller@31150000: chan0: already have 0 pair allocated
drivers/dma/ti/k3-udma.c:2383- udma: ti-udma dma-controller@31150000: alloc dma res failed -16
drivers/net/ti/am65-cpsw-nuss.c:354- am65_cpsw_nuss_port ethernet@c000000port@5: RX dma get failed -22
drivers/net/ti/am65-cpsw-nuss.c:474- am65_cpsw_nuss_port ethernet@c000000port@5: am65_cpsw_start end error

Hi Emily,

What is the configuration you want to have for main CPSW in u-boot? Which port will have what connection mode? If its RGMII, it won;t be an issue. If it has SGMII as well, I will need to check feasibility from u-boot.

Regards,
Tanmay

 Hi Tanmay, we need a SGMII mac-to-mac fixed link on port 5 SERDES2 in U-boot.

Emily

Thank you Tanmay,

I am really close! I applied patches for J784s4, and I can ping the host. I have included the U-boot log and SGMII and SERDES2 registers. 

But I do not get a response when I try to ping the other way around from the host side. 

U-Boot 2023.04-g16818160 (Jun 27 2024 - 05:47:49 +0000)

SoC:   J784S4 SR1.0 GP
Model: Texas Instruments J784S4 EVM
DRAM:  2 GiB
Core:  92 devices, 31 uclasses, devicetree: separate
Flash: 0 Bytes
MMC:   mmc@4f80000: 0
Loading Environment from nowhere... OK
In:    serial@2800000
Out:   serial@2800000
Err:   serial@2800000
drivers/net/ti/am65-cpsw-nuss.c:899- am65_cpsw_nuss ethernet@c000000: K3 CPSW: nuss_ver: 0x6BA03102 cpsw_ver: 0x6BA82902 ale_ver: 0x00290105 Ports:8 mdio_freq:1000000
Net:   am65_cpsw_nuss_port ethernet@c000000port@5: old gmii_sel: 00000003
am65_cpsw_nuss_port ethernet@c000000port@5: gmii_sel PHY mode: 3, new gmii_sel: 00000003

Warning: ethernet@c000000port@5 (eth0) using random MAC address - e2:cb:6c:7f:2f:04
eth0: ethernet@c000000port@5
=> md 0x0c000514
0c000514: 00000039 00009801 00000000 00000000  1...............
0c000524: 00000000 00000000 00000000 00000000  ................
0c000534: 00000000 00000000 00000000 00000000  ................
0c000544: 00000000 00000ee0 00000000 00000000  ................
=> md 0x05020408
05020408: 18100000 a2800000 00000000 00000000  ................
05020418: 00000000 00000000 00000000 00000000  ................
05020428: 00000000 00000000 00000000 00000000  ................
05020438: 00000000 00000000 00000000 00000000  ................
=> setenv ipaddr 169.254.41.41
=> setenv netmask 255.255.0.0
=> ping 169.254.245.147
drivers/soc/ti/k3-navss-ringacc.c:1022- k3-navss-ringacc ringacc@3c000000: Ring Accelerator probed rings:1024, gp-rings[878,128] sci-dev-id:315
drivers/soc/ti/k3-navss-ringacc.c:1027- k3-navss-ringacc ringacc@3c000000: dma-ring-reset-quirk: disabled
ti-udma dma-controller@31150000: Channels: 16 (tchan: 8, rchan: 8, gp-rflow: 24)
drivers/net/ti/am65-cpsw-nuss.c:401- am65_cpsw_nuss_port ethernet@c000000port@5: K3 CPSW: rflow_id_base: 0
link up on port 5, speed 1000, full duplex
Using ethernet@c000000port@5 device
host 169.254.245.147 is alive

I tested tftp and it is working. Thank you so much for your help!

Emily