i.MX ProcessorsのトピックRe: DDR3 Memory upgrade

DDR3 Memory upgrade

saurabh206 — Thu, 12 Sep 2013 15:52:15 GMT

Hi,

We are having custom hardware based on IMX6Q and its working fine.

We need to increase the DDR3 memory from 1GB to 2GB.

I have following questions regarding the hardware modification.

- Does the same IMX6q BSP works for hardware with 2GB? In this case it uses only 1GB memory.

- What software changes required for custom hardware upgrades to 2GB DDR3 Memory?

Thanks

Saurabh

Re: DDR3 Memory upgrade

Rita_Wang — Fri, 13 Sep 2013 05:54:04 GMT

Hi Saurabh,

Our IMX6Q hardware supports the most 4G memory, so 2GB is absolutely not problem. But the software should be changed. You must change your u-boot. Go to the directory /u-boot-2009.08/board/freescale/mx6q_sabresd/flash_header.S to edit the flash_header.S according to your hardware.

Best Regards

Dan

Re: DDR3 Memory upgrade

VladanJovanovic — Fri, 13 Sep 2013 07:05:57 GMT

Also <u-boot>/include/configs/mx6dq_sabresd.h needs modifying as there you specify number of CS and overall memory size.

Re: DDR3 Memory upgrade

saurabh206 — Fri, 13 Sep 2013 08:08:43 GMT

Hi,

Dan/Valdan

Thanks for youre reply.

We are using MT41J256M16HA-125E.

Our interface is same as SabreSD board.

Where can find more detailed information about the modification?

Thanks

Saurabh

Re: DDR3 Memory upgrade

Rita_Wang — Mon, 16 Sep 2013 07:55:06 GMT

Hi Saurabh,

You need to go to the ltib directory to release the u-boot first by the commend "./ltib -m prep -p u-boot". And then you will see the .h files in the u-boot directory, as we have said above .

Best Regards

Dan