TBSDTV Community Forum

You need a new u-boot. The included one is faulty. Here you find some hints, howto build one:

viewtopic.php?f=156&t=8786&start=10#p30842

See also the later post about enabling 2GB RAM.

Not sure, never tried. I load mine every time with imx_usb just cause I like to play around alot so its easier if its not writen to flash. You should be able to use the TBS mfg restore util I would think. UDL I looked through the mfg restore scripts (it uses Linux) and it was pretty easy. It is wri...

Yeah, looking very good so far. Managed to save u-boot-2014 to emmc and can tftpboot kernel and then nfs boot rootfs. Great! So, now I'm stuck at the same problem mentioned before that teh 3.10 kernel oopses about 30 sec after boot. INFO: rcu_sched self-detected stall on CPU { 1} (t=2100 jiffies g=4...

O.K. found the config here:
include/configs/mx6sabresd.h

change

Code: Select All Code

#define CONFIG_SYS_MMC_ENV_DEV          1       /* SDHC3 */

to

Code: Select All Code

#define CONFIG_SYS_MMC_ENV_DEV          2       /* SDHC3 */

then saving to MMC works

Hmm, one step further, and one step back: I flashed the u-boot to the emmc. This works nicely. However, u-boot cannot save (probably not load either) the environment variables. => saveenv Saving Environment to MMC... Card did not respond to voltage select! MMC init failed The mmc dev seems to be har...

Btw. Just found a nasty bug in the u-boot: When you enter "printenv netboot" (or any other very long variable), the CPU is resetted.

O.K. slowly I am getting forward. Now I have u-boot-2014 running with 2G RAM and networking :-) I have only managed to boot the normal 3.0.35 kernel. Guess, my dtb files are somehow borked. If I try to start a newer kernel, it always stops directly after "Starting the kernel...". Btw. how ...

Hmm, so far I wasn't able to boot any other kernel from the 2013-10 u-boot. Guess, I am doing something wrong. Will test next the 2014-01 u-boot.

Thanks for posting the patch.

Maybe it would make sense to have a look at the u-boot code from Boundary devices. They do have 2G RAM versions.

O.K. was able to get the code via "bitbake linux-imx -c menuconfig" Now patching...