Unable to enable Interactive DDR debugging with LS1043A

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Unable to enable Interactive DDR debugging with LS1043A

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Contributor II

Hello,

I'm trying to get the 'Interactive DDR debugging' (FSL DDR> prompt) working with our LS1043ARDB development board.  I have more than a month of experience working with the SDK 2.0 (plus patch) with this development board.

Some slides from our NXP training state the CONFIG_FSL_DDR_INTERACTIVE conditional compile flag must be set, and rebuild u-boot.  Is this necessarily for the default build? 

I found a README.fsl-ddr file in this directory:

./build_ls1043ardb/tmp/work/ls1043ardb-fsl-linux/u-boot-qoriq/2016.01+fslgit-r0/git/doc

It states two different ways to enable the FSL DDR debug prompt (set environment variable, and/or press 'd' on reset), and neither of them work.

Jerry

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3 Replies

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Contributor II

@Jerry Morrow  I define  environment variable <ddr_interactive> as fellow:

setenv ddr_interactive 1

saveenv

reset

then can entry DDR debug mode automatic.

i can't entry DDR debug mode by entry "d"

see reference doc: README.fsl-ddr

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70 Views
Contributor I

hawkin wrote:

@Jerry Morrow  I define  environment variable <ddr_interactive> as fellow:

setenv ddr_interactive 1

saveenv

reset

then can entry DDR debug mode automatic.

 

i can't entry DDR debug mode by entry "d"

see reference doc: README.fsl-ddr

I set ddr_interactive = 1 and enabled the common debug option for uboot and still do not get to the ddr debugger prompt.

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NXP TechSupport
NXP TechSupport

This option is enabled in default configuration of the LS1043ARDB u-boot.

Attached file contains the LS1043ADRB u-boot configuration file and screenshot if 'd' is pressed during u-boot starting.


Have a great day,
Pavel Chubakov

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