I.MX8M DDR tool generate lpddr4_timing.c for Uboot 5.4.x

[yyc1975]

Hi All,

I just moved to Android Q10.0.0_2.5.0 from Android P9 for our custom board.

I found that DDR tool (MScale v3.10) canot genearte lpddr4_timing.c for Uboot 5.4.x format.

Is there any new version tool for DDR training and timing code genration?

Best Regards,

YY

[yyc1975]

Any comment from anyone, please!!

[igorpadykov]

Hi yyc1975

v.3.10 is latest version. One can choose necessary format using description

on p.13 MSCALE_DDR_Tool_User_Guide.pdf included in ddr test package:

sect.8. Choose ‘CODE’ format or ‘ARRAY’ format from the dropdown list. Please choose
‘ARRAY’ format for the latest u-boot SPL driver.

Best regards
igor

[yyc1975]

Hi @igorpadykov ,

I did choose 'ARRAY' and generate code as attached file -- lpddr4_timing_mscale.c.

Compare to the lpddr_timing.c from imx8mq_evk source, quiet different between them.

The comment in lpddr4_timing_mscale.c also mention the code generate by DDR tool is aliagned with specific uboot version.

/*
 * Copyright 2019 NXP
 *
 * SPDX-License-Identifier:	GPL-2.0+
 *
 * Generated code from MX8M_DDR_tool
 * Align with uboot version:
 * imx_v2018.03_4.14.78_1.0.0_ga ~ imx_v2018.04_4.19.35_1.1.0_ga
 */

Should I just use it? or at least do modification on it?

Best regards,

YY