topic Re: Board won't boot from sd card in i.MX Processors

Board won't boot from sd card

totalit — Thu, 09 Dec 2021 15:29:46 GMT

I built fsl-image-qt5 and load it on SD card. But the board doesn't proceed initialization after "Normal boot" line and doesn't start autoboot countdown. What's the issue?

Log:

U-Boot 2016.03-mys-6ulx+ga175019 (Dec 02 2021 - 00:45:10 -0800)

CPU: Freescale i.MX6ULL rev1.1 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 115C) at 33C
Reset cause: POR
Board: MYS-MX6ULL 14x14
I2C: ready
DRAM: 256 MiB
force_idle_bus: sda=1 scl=0 sda.gp=0x1d scl.gp=0x1c
NAND: 256 MiB
MMC: FSL_SDHC: 0
Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
Net: FEC0
Normal Boot
=>

Here's boot partition contents:

totalit_0-1639063631421.png

Re: Board won't boot from sd card

igorpadykov — Thu, 09 Dec 2021 23:20:29 GMT

may be recommended to run ddr test

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-6-7-DDR-Stress-Test-Tool/ta-p/1108221

then update image with new ddr calibration coefficients as described in sect.3.2.1 Changing the DCD table for i.MX DDR initialization i.MX Porting Guide

Best regards
igor

Re: Board won't boot from sd card

totalit — Wed, 15 Dec 2021 08:07:22 GMT

I run DDR test, wrote new coefficients to u-boot, but it caused no result, I still get "Normal boot".

Re: Board won't boot from sd card

totalit — Thu, 16 Dec 2021 14:21:02 GMT

I solved this. The thing is, bootcmd variable in Uboot was not set. I did setenv bootcmd "fatload mmc 0 $loadaddr boot.scr; source $loadaddr" to place my script at the beginning of boot, so now it works.