topic Unable to enable Interactive DDR debugging with LS1043A in Layerscape

Unable to enable Interactive DDR debugging with LS1043A

jerrymorrow — Wed, 30 Nov 2016 19:59:27 GMT

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

Re: Unable to enable Interactive DDR debugging with LS1043A

Pavel — Mon, 05 Dec 2016 06:29:38 GMT

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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Re: Unable to enable Interactive DDR debugging with LS1043A

hawkin — Tue, 03 Jan 2017 06:49:30 GMT

@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

Re: Unable to enable Interactive DDR debugging with LS1043A

allen_j_andreu — Fri, 26 Oct 2018 13:57:19 GMT

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.