Hello, in order to understand the process of adapting imx8mp to LPDDR4, I configured the timing of LPDDR4 myself on the imx8mp evk development board.
My uboot version is 2022.04. I use the default ds file MX8M-Plus_LPDDR4-RPA-v9.xlsx and generate the corresponding code through mscale-d dr_tool-v3.31_setup. exe. My DDR stress test has passed. Currently, there are the following issues:
1. My uboot has not compiled board/free scale/imx8mp_ evk
/The lpdddr4_timing. c file is compiled as board/freescale/imx8mp_ evk
/DDR4_timing. c file.
2. There is a document in mscale-d dr_tool-v3.31_setup. exe that introduces the existence of new and old versions of uboot. May I ask if my version is the new version or the current version, and whether I should use the file lpdddr4_timing. c.
3. How should I generate LPDDR4 timing for uboot 2022.4 and run it on the imx8mp evk development board.
你好，为了了解imx8mp适配LPDDR4的流程，我在imx8mp-evk开发板上面自己去配置LPDDR4的时序。
我的uboot版本是2022.04。我使用MX8M_Plus_LPDDR4_RPA_v9.xlsx默认的ds文件，通过mscale_ddr_tool_v3.31_setup.exe去生成对应的代码。我的DDR压测已经通过。目前有如下问题：
1、我的uboot没有编译board/freescale/imx8mp_evk
/lpddr4_timing.c文件，编译的是board/freescale/imx8mp_evk
/ddr4_timing.c文件。
2、mscale_ddr_tool_v3.31_setup.exe里面有文档介绍存在新旧uboot版本。请问我的版本是新版本还是就版本，我是否应该使用lpddr4_timing.c这个文件。
3、针对uboot 2022.4版本，我应该怎么去生成LPDDR4的时序，然后在imx8mp-evk开发板上运行起来。
