linksys wrt1900acs v2 boot problem

linksys wrt1900acs v2 boot problem

[Dilyan Lazarov]

Hi,
I have a problem with my linksys wrt1900acs.
My main question is this a hardware problem or software problem?
Is it possible to address?
I have started researching and have tried with "kwboot" under Windows VM -
Ubuntu 20 - Linux but I have a problem with usb serial connection. I have
tried several things but I understand that it isn't possible to start USB
to Serial on a Windows VM.
I will expect your response.
Thank you in advance.

All the best
Dilyan

I see the following Log from U-Boot with PuTTy under Windows 10:
BootROM - 1.73
Booting from NAND flash

General initialization - Version: 1.0.0
Detected Device ID 6820
High speed PHY - Version: 2.0

Init RD NAS topology Serdes Lane 3 is USB3
Serdes Lane 4 is SGMII
board SerDes lanes topology details:
 | Lane #  | Speed |  Type       |
 --------------------------------
 |   0    |  06   |  SATA0      |
 |   1    |  05   |  PCIe0      |
 |   2    |  06   |  SATA1      |
 |   3    |  05   |  USB3 HOST1 |
 |   4    |  05   |  PCIe1      |
 |   5    |  00   |  SGMII2     |
 --------------------------------
:** Link is Gen1, check the EP capability
PCIe, Idx 0: Link upgraded to Gen2 based on client cpabilities
:** Link is Gen1, check the EP capability
PCIe, Idx 1: remains Gen1
High speed PHY - Ended Successfully
DDR3 Training Sequence - Ver TIP-1.26.0
mvSysEnvGetTopologyUpdateInfo: TWSI Read failed
WL Supp: IF 0 busId 1 Failed !
WL Supp: IF 0 failed
ddr3TipDynamicWriteLevelingSupp failure
********   DRAM initialization Failed (res 0x1)   ********
DDR3 run algorithm - FAILED 0x1
DDR3 Training Sequence - FAILED


 **********          DRAM initialization failed!   ********
-- 
Dilyan

Re: linksys wrt1900acs v2 boot problem

[Pali Rohár]

Hello Dilyan!

On Tuesday 28 September 2021 22:01:40 Dilyan Lazarov wrote:
> Hi,
> I have a problem with my linksys wrt1900acs.
> My main question is this a hardware problem or software problem?
> Is it possible to address?

This looks like DDR3 training SW issue problem. Marek worked on in and
tried to address issue. He should know more details in this area.

> I have started researching and have tried with "kwboot" under Windows VM -
> Ubuntu 20 - Linux but I have a problem with usb serial connection. I have
> tried several things but I understand that it isn't possible to start USB
> to Serial on a Windows VM.
> I will expect your response.
> Thank you in advance.

You need to use kwboot natively. It was heavily tested on Linux and I
think it should work also on BSD systems. Windows systems are not really
supported and kwboot will not work on them.

> All the best
> Dilyan
> 
> I see the following Log from U-Boot with PuTTy under Windows 10:
> BootROM - 1.73
> Booting from NAND flash
> 
> General initialization - Version: 1.0.0
> Detected Device ID 6820
> High speed PHY - Version: 2.0
> 
> Init RD NAS topology Serdes Lane 3 is USB3
> Serdes Lane 4 is SGMII
> board SerDes lanes topology details:
>  | Lane #  | Speed |  Type       |
>  --------------------------------
>  |   0    |  06   |  SATA0      |
>  |   1    |  05   |  PCIe0      |
>  |   2    |  06   |  SATA1      |
>  |   3    |  05   |  USB3 HOST1 |
>  |   4    |  05   |  PCIe1      |
>  |   5    |  00   |  SGMII2     |
>  --------------------------------
> :** Link is Gen1, check the EP capability
> PCIe, Idx 0: Link upgraded to Gen2 based on client cpabilities
> :** Link is Gen1, check the EP capability
> PCIe, Idx 1: remains Gen1
> High speed PHY - Ended Successfully
> DDR3 Training Sequence - Ver TIP-1.26.0
> mvSysEnvGetTopologyUpdateInfo: TWSI Read failed
> WL Supp: IF 0 busId 1 Failed !
> WL Supp: IF 0 failed
> ddr3TipDynamicWriteLevelingSupp failure
> ********   DRAM initialization Failed (res 0x1)   ********
> DDR3 run algorithm - FAILED 0x1
> DDR3 Training Sequence - FAILED
> 
> 
>  **********          DRAM initialization failed!   ********
> -- 
> Dilyan

Could you please try to update U-Boot to the new version? If the issue
is still there? Because DDR3 marvell driver was updated and it is
possible that also your issue is fixed now too...

Re: linksys wrt1900acs v2 boot problem

[Tony Dinh]

Hi all,

On Fri, Jan 6, 2023 at 9:35 AM Pali Rohár <pali@kernel.org> wrote:
>
> Hello Dilyan!
>
> On Tuesday 28 September 2021 22:01:40 Dilyan Lazarov wrote:
> > Hi,
> > I have a problem with my linksys wrt1900acs.
> > My main question is this a hardware problem or software problem?
> > Is it possible to address?
>
> This looks like DDR3 training SW issue problem. Marek worked on in and
> tried to address issue. He should know more details in this area.
>
> > I have started researching and have tried with "kwboot" under Windows VM -
> > Ubuntu 20 - Linux but I have a problem with usb serial connection. I have
> > tried several things but I understand that it isn't possible to start USB
> > to Serial on a Windows VM.
> > I will expect your response.
> > Thank you in advance.
>
> You need to use kwboot natively. It was heavily tested on Linux and I
> think it should work also on BSD systems. Windows systems are not really
> supported and kwboot will not work on them.
>
> > All the best
> > Dilyan
> >
> > I see the following Log from U-Boot with PuTTy under Windows 10:
> > BootROM - 1.73
> > Booting from NAND flash
> >
> > General initialization - Version: 1.0.0
> > Detected Device ID 6820
> > High speed PHY - Version: 2.0
> >
> > Init RD NAS topology Serdes Lane 3 is USB3
> > Serdes Lane 4 is SGMII
> > board SerDes lanes topology details:
> >  | Lane #  | Speed |  Type       |
> >  --------------------------------
> >  |   0    |  06   |  SATA0      |
> >  |   1    |  05   |  PCIe0      |
> >  |   2    |  06   |  SATA1      |
> >  |   3    |  05   |  USB3 HOST1 |
> >  |   4    |  05   |  PCIe1      |
> >  |   5    |  00   |  SGMII2     |
> >  --------------------------------
> > :** Link is Gen1, check the EP capability
> > PCIe, Idx 0: Link upgraded to Gen2 based on client cpabilities
> > :** Link is Gen1, check the EP capability
> > PCIe, Idx 1: remains Gen1
> > High speed PHY - Ended Successfully
> > DDR3 Training Sequence - Ver TIP-1.26.0
> > mvSysEnvGetTopologyUpdateInfo: TWSI Read failed
> > WL Supp: IF 0 busId 1 Failed !
> > WL Supp: IF 0 failed
> > ddr3TipDynamicWriteLevelingSupp failure
> > ********   DRAM initialization Failed (res 0x1)   ********
> > DDR3 run algorithm - FAILED 0x1
> > DDR3 Training Sequence - FAILED
> >
> >
> >  **********          DRAM initialization failed!   ********
> > --
> > Dilyan
>
> Could you please try to update U-Boot to the new version? If the issue
> is still there? Because DDR3 marvell driver was updated and it is
> possible that also your issue is fixed now too...

I can confirm that on the Synology DS116 board (also Armada 385, 1GB
DDR3). The last tests I ran on this board were built with
u-boot-2022.07 and did not see any problem with DDR3 training.

All the best,
Tony