AnsweredAssumed Answered

custom imx28 yocoto u-boot 2013.10 init fails

Question asked by Tom Deacon on Feb 11, 2014
Latest reply on Feb 21, 2014 by Marek Vasut



I am trying to switch from LTIB to Yocto on a custom imx28 board. I have the LTIB u-boot with imx bootlets working on sdcard.

The only thing I had to change was define NO_DCDC_BATT_SOURCE in power_prep.c otherwise u-boot would keep reseting.


Booting a sdcard with u-boot 2013.10 results in u-boot failing to initialize with no output on the console.

I added some debug messages and found that it keeps failing at the same line.

In spl_power_init.c, mxs_power_set_vddx(&mxs_vddio_cfg, 3300, 3150) is called and fails at the following line:


cur_target = readl(cfg->reg);


The same sdcard will start loading the kernel fine on the imx28evk.


Any help would be appreciated.