09:27 <wadim_> Do I have to initialize the SDRAM before I can use the rkflashtool for reading/writing to SDRAM?

09:39 <stdint> wadim_, no usually there is a miniloader for you to do those jobs

10:05 <wzyy2> yep, rom code will load miniloader to sram and miniloader will initialize the SDRAM.

10:14 <wzyy2> http://opensource.rock-chips.com/wiki_Boot_option

10:44 <wadim_> I think you are missing a few build steps for rkdeveloptools

17:47 <alexandrefvb> Hi, I try to replace original android of a mxq-4k device with a linux but after replace kernel and resource partitions with images built using rockchip-linux source the device cant boot anymore. I tried to compile using the device trees that is included in source code and with one extracted from resource image from original android but the boot process freezes and device not start

17:48 <alexandrefvb> how can I debug the boot process and try to figure out what is wrong?

18:29 <mmind00> alexandrefvb: find the pins for the serial console on the board and attach a serial cable to it

18:42 <alexandrefvb> mmind00: http://www.cnx-software.com/2015/12/06/how-to-run-headless-linux-on-amlogic-s905-devices-such-as-mini-mx-or-k1-plus/ - Like explained in this link?

18:44 <mmind00> alexandrefvb: essentially yes ... the hard part will be finding the uart "pins", which ,may not be real pins on your device

18:44 <amstan> and hopefully your console is set to output things on that serial port

18:47 <alexandrefvb> ok, I will try to find the pins and do the connection. Thanks for the help!