TDA2E: Configure NDK for 1 Gbps

Hi, Mayank,

VSDK experts have been notified. They will reply directly here.

Regards,
Mariya

Hi,

On reading the Tda2x datasheet i got the following info:

G/MII Interface can operate only in MII Mode.
• In MII Mode (100/10 Mbps): GMAC_SW operates in full-duplex and half-duplex

The 3-port switch (GMAC_SW) Ethernet Subsystem has two 10/100/1000 Ethernet ports with selectable
MII, RMII, and RGMII interfaces.
The interface mode is selected by configuring the MII mode selection register bitfields (GMII1_SEL and
GMII2_SEL) in the control module. See Section 18.5, Control Module Register Manual for details


24.10.4.3.2.2 RGMII Interface Clocking
RGMII_RXC, RGMII_TXC frequencies are:
• 2.5 MHz at 10 Mbps
• 25 MHz at 100 Mbps
• 125 MHz at 1000 Mbps

Also in the following post:
e2e.ti.com/.../518068

Steve Connell has mentioned in one of the replies:
Usually there is some register configuration that's done in the driver to set the link speed.

Please guide me the changes to be done in NDK,NSP driver/register configuration/settings to change the network bandwidth from 100 mbps to 1gbps(1000 mbps).

Regards
Mayank

Hi Prasad,

Thanks for your mail.
We have our own customised application and we have our own PHY that we have configured to work with NDK,NSP frm TI on TDA2xx based board.Right now we are configuring the above set up for 100 mpbs ethernet bandwidth speed.
If in above set up i want to get the ethernet bandwidth to 1 gbps what all register settings we need to change.

Regards
Mayank

Hi Prasad,

Thanks for your mail.

Right now for 100mbps ethernet speed:

pGMACSWConfig->macInitCfg[i].macConnectionType = MAC_CONNECTION_TYPE_RGMII_FORCE_100_FULL

is configured as given above.

From the phy datasheet it is written the following points:

1.Single chip 10/100/1000 Mbps IEEE 802.3 compliant ethernet transreceiver.
2.Auto negotiation to select the highest link up speed(10/100/1000) mbps and duplex(half/full).

You are suggesting to configure the macConnectionType to
MAC_CONNECTION_TYPE_RGMII_DETECT_INBAND

to get the link speed to 1000 Mbps.

Apart from the above change what all changes are required to configure the ethernet speed to 1000 mbps.

Thanks for helping me.

Best Regards
Mayank

Hi Prasad,

Thanks for your mail.I made the above change but after that i am getting the following log in CCS console:

Negotiated connection: FullDuplex 1000 Mbs
but i am not able to ping the ecu.As of now i am trying to run modified client application for our tda2xx based ecu and phy.
Are there any settings that i have to do in linux machine from where i am trying to ping the ecu.
Is that the only change required to configure the 1 gbps link.

Regards
Mayank

Mayank,

As Linux PC is able to negotiate connection at 1Gbps there is no change needed at PC end.

I think the TDA2e or PHY is dropping packets. Can you please send PHY datasheet link and contents of registers 0x4848_4900 to 0x4848_498C?

 This should tell us if any packets received on TDA2e.

Hi Prasad,

I am running modified client application on customised TDA2XX with third party PHY.

Please find below the following attachments:

1.ccs console output when the client application is run:

2.Registers  0x4848500c onwards:

3.Registers 0x48484900 onwards:

Please also find the PHY data sheet link below:

ww1.microchip.com/.../ksz9021rl-rn_ds.pdf

Ok, this explains. If you see register 0x4848_4910 (CRC errors) it is non-zero, so basically there is issue with PHY configuration IO delays and so it doesnt give correct data to TDA2E.
Can you please check in PHY data manual if there any delay setting for Gbps link?
Also do you comment out PHY delay configuration from vayu_init() function?

Hi Prasad,

I modified the task delays in gmac configuration and instead of MAC_CONNECTION_TYPE_RGMII_FORCE_1000_FULL i put

MAC_CONNECTION_TYPE_RGMII_DETECT_INBAND as pGMACSWConfig->macInitCfg[i].macConnectionType.After that please

find the register configuration(0x48484900) attached with this:

Mayank,

Let it run for some time and then share register log and please share console log too.

Also you commenting out vayu_init() function? Please add return at the start on this function so not to execute anything from here.

Is it possible to share PHY data manual? If it is not available publicly you can mail it on mail id.

Hi Prasad,

Please find the PHY link below:

ww1.microchip.com/.../ksz9021rl-rn_ds.pdf

Please also tell if there are any registers that i check to make sure if data is ethernet link is established at 100 Mbps or 1000 Mbps.

Regards,
Mayank