netdev - Re: Marvell 375 and Marvel 88E1514 Phy network problem: mvpp2 or DTS related?

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Message-ID: <mgCCIJjGoUsB3nhQPO_r2E4X7JvDb5_40Aq9GVv5OoH6OXxsKCuO3lnlVSHj-zH00KV5AY66F4VE6bed9R5yu8SM_jNeBpdGDYAkBNq7hXA=@proton.me>
Date: Mon, 22 Sep 2025 08:58:49 +0000
From: Zoo Moo <zoomoo100@...ton.me>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>, Marcin Wojtas <mw@...ihalf.com>
Subject: Re: Marvell 375 and Marvel 88E1514 Phy network problem: mvpp2 or DTS related?

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On Sunday, 21 September 2025 at 19:56, Russell King (Oracle) <linux@...linux.org.uk> wrote:

> On Sun, Sep 21, 2025 at 09:05:18AM +0000, Zoo Moo wrote:
> 

> > Hi,
> > 

> > Bodhi from Doozan (https://forum.doozan.com) has been helping me try to get Debian to work on a Synology DS215j NAS. The DS215j is based on a Marvell Armada 375 (88F6720) and uses a Marvel 88E1514 PHY.
> 

> 

> Probably wrong RGMII phy-mode. I see you're using rgmii-id. Maybe that
> isn't correct. Just a guess based on the problems that RGMII normally
> causes.

Hi Russell,

Thanks, we did try different drivers (gmii, sgmii), but they didn't help, details in this message https://forum.doozan.com/read.php?2,138851,139291#msg-139291.

I'm happy to try again if you think it will help with debugging.

The uboot log indicates the rgmii is the correct driver ("RGMII0 Module on MAC0"). Or is it misleading?

--------------------------------------------------
BootROM - 1.51
Booting from SPI flash

General initialization - Version: 1.0.0
High speed PHY - Version: 0.1.1 (COM-PHY-V20) 

USB2 UTMI PHY initialized succesfully
USB2 UTMI PHY initialized succesfully
High speed PHY - Ended Successfully

DDR3 Training Sequence - Ver 5.7.1
TWSI Read failed
Error reading from TWSI
DDR3 Training Sequence - Run with PBS.
DDR3 Training Sequence - Ended Successfully 

BootROM: Image checksum verification PASSED

 __   __                      _ _
|  \/  | __ _ _ ____   _____| | |
| |\/| |/ _` | '__\ \ / / _ \ | |
| |  | | (_| | |   \ V /  __/ | |
|_|  |_|\__,_|_|    \_/ \___|_|_|
         _   _     ____              _
        | | | |   | __ )  ___   ___ | |_ 

        | | | |___|  _ \ / _ \ / _ \| __| 

        | |_| |___| |_) | (_) | (_) | |_ 

         \___/    |____/ \___/ \___/ \__| 

 ** LOADER **

U-Boot 2013.01-g5d1ab78 (Oct 27 2015 - 11:38:34) Marvell version: 2014_T2.0p3

mvBoardTwsiGet: Twsi Read fail
mvBoardIoExpValSet: Error: Read from IO Expander failed
Board: SYNO-DS215j
SoC:   MV88F6720 Rev A0
       running 2 CPUs
CPU:   ARM Cortex A9 MPCore (Rev 1) LE
       CPU 0
       CPU    @ 800 [MHz]
       L2     @ 400 [MHz]
       TClock @ 200 [MHz]
       DDR    @ 534 [MHz]
       DDR 16Bit Width, FastPath Memory Access, DLB Enabled
DRAM:  512 MiB

Map:   Code:		0x1fed2000:0x1ff93080
       BSS:		0x1ffefe10
       Stack:		0x1f9c1f20
       Heap:		0x1f9c2000:0x1fed2000

MMC:   MRVL_MMC: 0
SF: Detected MX25L6405D with page size 64 KiB, total 8 MiB
PCI-e 0: Detected No Link.
USB2.0 0: Host Mode
USB2.0 1: Device Mode
USB3.0 0: Host Mode
Board configuration detected:
	RGMII0 Module on MAC0
	PON ETH SERDES on MAC1 [SFP]
SERDES configuration:
	Lane #0: PCIe0
	Lane #1: SATA1
	Lane #2: SATA0
	Lane #3: USB3

Synology Model: DS215j
Fan Status: Good
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