AM67A: Failure to flash TPS65987DDK over i2c on boot

Evan Williams

Part Number: AM67A
Other Parts Discussed in Thread: TPS65987DDK, TPS65981

Tool/software:

Hi,

I'm trying to load TPS65987DDK over i2c with Linux driver ti,tps6598x.

I'm getting a response:
kernel: tps6598x 3-0020: Update completion failed (-16)

Basically, I saved a "Full Flash Image" using the TPS65981 Application Customization software.

Is this binary the correct binary to use? It calls:
tps6598x_exec_cmd(tps, "PTCc", 0, NULL, TPS_PTCC_OUT_BYTES, out);

And this has the wrong bits set:

out[TPS_PTCC_DEV] || out[TPS_PTCC_APP]

Also, after I see the firmware update fails, I see that it's trying to activate the usb tty on this device:
cdc_acm 1-1.4:1.0: skipping garbage
cdc_acm 1-1.4:1.1: ttyACM0: USB ACM device

Any tips for how to resolve this issue?

1 month ago

0 Neehar Sawant 1 month ago

TI__Mastermind 19370 points

Hi,

Evan Williams said:
Basically, I saved a "Full Flash Image" using the TPS65981 Application Customization software.

Is this binary the correct binary to use? It calls:
tps6598x_exec_cmd(tps, "PTCc", 0, NULL, TPS_PTCC_OUT_BYTES, out);

Can you give more details on how you are booting the board?

What is your boot mode? Are you booting with SPL?

Thanks,

Neehar

0 Evan Williams 1 month ago in reply to Neehar Sawant

Intellectual 550 points

Hi Neehar,

I'm booting using the Linux SDK 10.
The code is from the ti,tps6598x driver.

I'm skipping SPL and booting straight into the Kernel which runs the Linux version of this driver.

If I delete the firmware file from /usr/lib/firmware (which is symlinked to /lib/firmware), then I get a different error, complaining that the firmware isn't found.

0 Neehar Sawant 28 days ago in reply to Evan Williams

TI__Mastermind 19370 points

Hi Evan,

Are you able to detect your tps6598x device on the I2C bus?

Can you use the i2cdetect command and provide a dump of the logs?

Thanks,

Neehar

0 Evan Williams 22 days ago in reply to Neehar Sawant

Intellectual 550 points

Hi Neehar,

I found that I needed to use the "low region" instead of the full image to update the firmware over i2c.

Now, the firmware update succeeds, but the power doesn't actually come on, so now there's some other issue. I'll close this ticket.

Thanks

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AM67A: Failure to flash TPS65987DDK over i2c on boot