LayerscapeのトピックRe: SPI AS RGMII MANAGEMENT INTERFACE

SPI AS RGMII MANAGEMENT INTERFACE

prabinca4u — Thu, 17 Dec 2015 09:45:22 GMT

I'm Working On LS1021A-IOT board REF board (REV 1), SDK V1.8. My current task is to bring up RGMII interface on LS1021A-IOT board.It uses dspi for managing the RGMII, The RGMII is eTSEC3. But RGMII is never working on my board. I tried to access RGMII register via SPI, but I didn’t get any response from RGMII. Do I need further configuration for setting up SPI as RGMII management interface(In device tree or kernel driver).

Thanks In advance

Re: SPI AS RGMII MANAGEMENT INTERFACE

arunkr — Thu, 17 Dec 2015 12:48:17 GMT

Hi Prabin,

I am also facing issue with RGMII interface on LS1021AIOT (Rev 1) reference board. (Yocto SDK v1.8, board schematic REV B3).

The reference SDK is downloaded from Freescale/NXP portal for this reference board, and by default the the Realtek switch should work with this image. But it doesn't.

The eth2 connected switch is configured in RGMII mode in hardware, and in RCW, device tree also. The management bus is SPI, not MDIO unlike eth0 and eth1 (In eth0 and eth1 management bus is MDIO, and data bus is SGMII configuration). But on 'ethtool eth2' command, in fsl-image-rds image it shows interface supported is MII. I dont know whats the issue..

Re: SPI AS RGMII MANAGEMENT INTERFACE

prabinca4u — Thu, 17 Dec 2015 12:54:25 GMT

Thanks Mr Arun For putting this queries also. I'm also thinking that is the problem.

Re: SPI AS RGMII MANAGEMENT INTERFACE

Pavel — Wed, 23 Dec 2015 05:21:17 GMT

Look at attached file. Find the rtlinit in this file.

Have a great day,
Pavel

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Re: SPI AS RGMII MANAGEMENT INTERFACE

prabinca4u — Wed, 23 Dec 2015 06:07:36 GMT

Thanks Pavel Let me try this....

Re: SPI AS RGMII MANAGEMENT INTERFACE

prabinca4u — Thu, 24 Dec 2015 04:34:04 GMT

Hi Now i'm able to configure Registers of RGMII switch via SPI, And able to send TX data and TX clock (125 MHZ) from ETSEC to RGMII switch, But not coming data out from RGMII switch to LAN Port. Similarly not getting RX clock and RX data from RGMII switch to ETSEC (while pinging from My host PC to LS1 board).

Please Advice me......!

Re: SPI AS RGMII MANAGEMENT INTERFACE

Pavel — Thu, 24 Dec 2015 07:06:02 GMT

Check the RCW for your processor.

Is the EC3 correctly on your board?

Is the TSEC3 enabled on your board?

Test the TSEC on your board using internal loopback. See the Section 20.9.3.13 of the LS1021A Reference Manual.

Have a great day,
Pavel

Re: SPI AS RGMII MANAGEMENT INTERFACE

prabinca4u — Tue, 29 Dec 2015 11:54:12 GMT

Hi Pavel

eTSEC3 is already enabled in RCW (RCW_422_424 = 000) and Internal hardware Loop backing of eTSE3 is working in MAC(LS1021A-IOT) side fine.

I'm getting the given print from kernel when do internal loop back "received packet on eth2 with own address as source address"

The processor side seems to okei for RGMII

Then what may be the problem.???

Thanks

Re: SPI AS RGMII MANAGEMENT INTERFACE

prabinca4u — Tue, 12 Jan 2016 07:44:35 GMT

The RGMII issue is solved by configuring RTL8365MB switch.

Re: SPI AS RGMII MANAGEMENT INTERFACE

dineshkumarpara — Wed, 31 Aug 2016 20:20:43 GMT

Hi Prabin,

How do you configure the RTL8365MB switch in the SDK (via kernel, device tree or application)

Re: SPI AS RGMII MANAGEMENT INTERFACE

dhruvalpatel — Fri, 14 Jul 2017 13:03:06 GMT

Hi ,

I am working on similar product based on ls1021aiot based design but we are using broadcom switch and we don't have any other interface. Is there a way to configure switch at u-boot. I will appreciate any pointers.

Thanks in Advance !!

Re: SPI AS RGMII MANAGEMENT INTERFACE

wilkxt — Fri, 27 Dec 2019 23:03:54 GMT

How you configuring RTL8365MB ?