i.MX6Q/D Problem with 2GB DDR3 with L3.10.17 release

[vivekkaushik]

I have 2 custom board based on i.MX6Q/D

     1. with 2GB DDR3 (4x256mx16).

     2. with 1GB DDR3 (4x128mx16).

My uboot version is fslc_v2013.04-r0 and kernel version is 3.10.17-r0.

Problem:

My uboot is booting fine on 2GB board but kernel is not starting

Observations:

     1. These both images are booting fine and both the boards work very well if I use 1GB configuration for both

     2. I changed uboot for 2GB configuration board and it is booting fine and showing DRAM as 2GB but kernel is not starting

     3. With this uboot changed for 2GB configuration if I boot kernel-3.0.35, then it boots well and shows 2GB Total memory in cat /proc/meminfo

Do I need to change any thing in Kernel-3.10.17 to support 2GB RAM? I already made one change in dtsi file as

21     memory {

22         reg = <0x10000000 0x80000000>;

23     };

Any Idea what could be the issue here

[igorpadykov]

Hi Vivek

2GB memory is supported on Sabre AI boards,

so one can check board configuration as shown

in attached document sect.5.2 Machine configurations

from L3.10.17_1.0.0_LINUX_DOCS

SABRE|Automotive-Infotainment|i.MX6|Freescale

Best regards

igor

[vivekkaushik]

Hello Igor,

Thanks and for Quick reply, I have build the source and got the yocto u-boot-2013.04-r0 and kernel-3.10.17-r0 ready for sabreauto. I want to reduce my variables here so wanted to check with you that as my u-boot is showing DRAM as 2GB and Linux-3.0.35 also shows 2GB in /proc/meminfo, do I should need the changes and check only in kernel side?

Thanks and Regards

Vivek

[igorpadykov]

Hi Vivek

FSL BSP for Sabre AI board supports 2GB memory,

no additional changes are needed.

~igor