Mity CPU Platforms

03/01/2018

MJ 01:24 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

Hi
Thanks for that information - that was it!
U-Boot 'mii dump' command reports that the Dev Kit has a PHY ID of 3 but our board has a PHY ID of 2.
BUT ... it looks like the Dev Kit was designed for the PHY ID to be 2 but turned out... Mathew Jones

02/27/2018

DV 04:21 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

Seeing as u-boot works correctly and linux doesn't I believe this has to do with the PHY ID. u-boot will just probe all possible IDs on the MDIO interface until it finds one but unluckily linux requires you to specify it in the device tr... Daniel Vincelette

MJ 03:58 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

The device is the Microchip/Micrel KSZ9031RNX, which I believe is the same as the Dev Kit.
The MDIO pins are connected like the Dev Kit except that as recommended by Microchip there is a 1K MDIO pullup instead of 10K as on the Dev Kit.
... Mathew Jones

02/26/2018

MW 06:21 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

Sounds like reset is working properly.
Are the MDIO pins connected the same way as for the Dev Kit?
Have you updated the preloader for your FPGA build? Michael Williamson

MJ 03:56 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

Hi Mike
I believe the PHY is the same as the dev board, but I'll need to confirm that.
The activity LED for the PHY flashes during U-Boot start-up and then once for every ping out from U-Boot.
During Linux start-up I think I see the... Mathew Jones

02/23/2018

MW 12:31 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

What PHY are you using?
This sounds a lot like the PHY is maybe getting held in reset. Do you have a GPIO connected to the PHY reset pin? Can you scope that pin?
When linux boots, if you connect a network connection to the port, ... Michael Williamson

MJ 09:38 AM MitySOM-5CSX Altera Cyclone V Software Development: MitySOM-5CSX ethernet PHY errors prevent ethernet in Linux

Hi,
We have a PCB based on the development kit, where we are using a MitySOM-5CSX-H6-4YA and boot from SD Card.
At start-up we get PHY errors under Linux that continually get output to the console and prevent the Ethernet port being us... Mathew Jones

02/22/2018

JC 03:12 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Okan Çalış wrote:
> Hi Jonathan, thanks for your reply.
> ...
I suggest you do some research into nand and ECC. This might be a good starting place.
http://www.linux-mtd.infradead.org/doc/nand.html
>
> ...
We are not familiar with... Jonathan Cormier

OÇ 12:07 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Hi Jonathan, thanks for your reply.
> The kernel and u-boot both have to use the same ECC strength.
I'm afraid I have no idea what an ECC strength is. I've read "this documentation,":https://www.kernel.org/doc/Documentation/devicet... Okan Çalış

02/21/2018

JC 02:14 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Okan Çalış wrote:
> Hi,
> ...
The kernel and u-boot both have to use the same ECC strength. You can possibly use our kernel if you can figure out how to configure the nand correctly but I don't think we can be of much help here.
>
... Jonathan Cormier

OÇ 07:38 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Hi,
I couldn't reply sooner because I've been handling some other kernel-related problems by using NFS as a temporary solution.
The custom board is rather similar to Critical Link's MityDsp-L138F in terms of included peripherals et... Okan Çalış

02/13/2018

TR 02:04 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: getting AUDIO_SYSCLK to expansion connector

I have an Industrial I/O board and need to get the AUDIO_SYSCLK signal out to an expansion board connector. Currently I am using signals from J701 to interface with my external codec and pin 26 appears to be free.
Before I start sold... Tom Riddle

02/07/2018

JC 02:17 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

> U-Boot > print ver
> ...
This is definitely not a version of u-boot that we support. Which could explain all the ECC errors you get in the kernel when you try to read from nand. If this u-boot you are using is not configuring the ECC ... Jonathan Cormier

MW 12:26 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Is your custom board using a MityDSP-L138, or have you designed a custom board using the OMAP-L138 and not the module?
If you have done a custom carrier card and are still using a MityDSP-L138, then there are multiple things going on ... Michael Williamson

OÇ 11:56 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Turns out that the custom board doesn't even have a @factoryconfig@ command. The two boards appear to have different versions of U-Boot installed.
In the Critical Link's board, I get: Okan Çalış

JC 02:01 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Auto run of application file (loaded in NAND Flash)

Vivek Ponnani wrote:
> Currently our application program is part of .jffs2 file system (Linux root file system + application program) in NAND (rootfs). But if we want to update only application every time in userfs part of NAND and not... Jonathan Cormier

02/06/2018

JC 03:08 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Okan Çalış wrote:
> But this is our custom board. What should I enter in those fields?
This is the factory config for the SOM. It has to be set to the values from the barcode on the SOM. Jonathan Cormier

OÇ 02:57 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

But this is our custom board. What should I enter in those fields? Okan Çalış

JC 02:38 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

> MityOMAPL138: Read Factory Config Failed: -110
This line is very concerning. It appears you have erased or corrupted the modules factory config which is likely causing the kernel to think it has the wrong nand device.
You can reco... Jonathan Cormier

OÇ 05:58 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Hi Jonathan,
> Your u-boot and kernel partitions don't seem to match.
I changed the file @board-mityomapl138.c@ and rebuilt the kernel. The kernel gets the partitions right this time around.
> ...
My @CONFIG_MTD_CMDLINE_PARTS@ ... Okan Çalış

VP 10:14 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: FPGA Done led not turning on with CPU programming

Michael Williamson wrote:
> How are you generating the bin file?
> ...
Thanks a lot Michael. There was a problem in .bin file generation. We followed your suggested wiki page and now it is working.
Thanks.
- Vivek Vivek Ponnani

VP 10:11 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Auto run of application file (loaded in NAND Flash)

Jonathan Cormier wrote:
> Vivek Ponnani wrote:
> ...
Thanks a lot Jonathan. There was a problem in .bin file generation of FPGA. With the help from the FPGA forum , we are able to solve it. Now our application is running from flash. Th... Vivek Ponnani

02/05/2018

JC 04:31 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Using McASP Rx clock generation module

Ideally you should get it working from the baseboard as that should be the source of all the pinmux settings. Not sure what else might be overriding things. I have run into cases where i had multiple pinmux configs overriding each othe... Jonathan Cormier

TR 04:12 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Using McASP Rx clock generation module

Hi Jonathan,
Ok, good suggestion... thanks... the pinmux read
PINMUX0 = 0x8811.1110
so it's not getting set to ACLKR, instead to PRU0_R31[22], not even a gpio, which interesting.
PINMUX1 = 0x8888.8881
all of the serialize... Tom Riddle

JC 02:40 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Your u-boot and kernel partitions don't seem to match. Also asuming the u-boot partitions scheme is the correct one, if you intend to boot from your "rootfs" partition in linux you should change mtdblock0 to mtdblock1 after fixing the li... Jonathan Cormier

OÇ 05:08 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: Kernel panics on custom board: "No init found. Try passing init= option to kernel"

Hi,
As some of you may know, I've been working on a MityDsp-L138F SoM, and I also have a custom designed board based on MityDsp. So far, I've used Linux on the Industrial IO board with kernel and file system installed on NOR and NAND ... Okan Çalış