Memory capacity is not recognized correctly on iMX6 solo

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Memory capacity is not recognized correctly on iMX6 solo

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w-taisuke
Contributor I

Nice to meet you all.
I made a new iMX6 solo based on the iMX6 Q SABRE SD board.
Because solo has a 32bit memory bus, I used 1GB memory (512MB x 2). In that case, I wired A14 and A15 (just to be sure) to the memory chip.

The memory capacity is only 512MB for both u-boot and DDR Stress Tester.DDR Stress Tester shows Data width:32bit, bank num:8, Row size:14, col size:10. Row size is 1 missing.

Is there anything I should take care of in the design?

Please contact us.

Memory chip part number
IS43/46TR16256BL (DDR3L 256Mx16)

The DDR Stress Tester indicates the following

******************************
DDR Stress Test (1.0.3) for MX6DL
Build: Jun 25 2014, 12:09:29
Freescale Semiconductor, Inc.
******************************

=======DDR configuration==========
BOOT_CFG3[5-4]: 0x00, Single DDR channel.
DDR type is DDR3
Data width: 32, bank num: 8
Row size: 14, col size: 10
Chip select CSD0 is used
Density per chip select: 512MB
==================================

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w-taisuke
Contributor I

Hi, all

I updated the *.inc file using the "i.MXDL MMDC DDR3 Configuration Spreadsheet" and the DDR Stress Tester recognized 1GB.

However, the DQS gating calibration fails and there is a new problem.

The issue with the topic has been resolved and should be closed.

Thank you.

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