DM8168 Uboot Problem

Lei Wong

Expert 1355 points

Hi everyone,

We designed a board using DM8168. But the uboot cannot work.

I compiled the uboot image following this URL

I tested the Nand Flash Mode, SPI Mode and SD Mode, all tests are failed. (SPI Mode also failed on EVM board)

Nand flash seems OK, and I write the uboot image successfully using jtag.

But when I power up the board after set the boot mode,

nothing got from the uart2.

I checked the pin state when the board powered up.

I found that the Nand_bootn pin was low, but the GPMC_CS0 pin was high.

The boot mode is correct I think.

How can I debug with this problem?

Regards,

Lei

0 Bitlord over 13 years ago

Hi Lei,

did you ever resolve your issue?

Best,

Andreas

0 Lei Wong over 13 years ago in reply to Bitlord

Expert 1355 points

Hi Andreas,

Not yet. Nand boot still not work yet.

Now we use SD boot mode, and it works fine.

I will test the nand flash again later. And I will update this if I make any progress.

Regards,

Lei

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