imx8mq 4GB Uboot BootUp Fail

[shangregister]

hi all

i pushed the 4GB on the EVK but hangup

like this 

U-Boot 2018.03-imx_v2018.03_4.14.98_2.1.0+gb9dc0acc7a (Oct 31 2019 - 07:46:08 +0000)

CPU: Freescale i.MX8MQ rev2.1 1500 MHz (running at 1000 MHz)
CPU: Commercial temperature grade (0C to 95C) at 43C
Reset cause: POR
Model: Freescale i.MX8MQ EVK
DRAM: 

no any message after "DRAM:"

i modified  include/configs/imx8mq_evk.h

-#define PHYS_SDRAM_SIZE 0xC0000000 /* 3GB DDR */
+#define PHYS_SDRAM_SIZE 0x100000000 /* 4GB DDR */

Yocto Version :L4.14.98-2.1.0

and i used DDR Tools to gen lpddr4_timing.c to the Uboot compile.

the Calibration is pass and the Stress Test is pass in mscale DDR tool.

[Yuri]

Hello,

  I've sent You patch for U-boot directly. Hope it helps.

Regards,

Yuri.

[shangregister]

i used yours patch ,not help

[Yuri]

Hello,

   Also use general approach to modify memory configuration, 

described in  Chapter 3 (Porting U-Boot)  of "i.MX_Porting_Guide.pdf".

https://www.nxp.com/webapp/Download?colCode=L4.14.98_2.2.0_LINUX_DOCS 

Regards,

Yuri.