I created DTS files for my custom board, my DDR configuration is same as stm32mp157A-ev1 board and I am using same mpu. Why some of the CUBEMX generated TF-A DDR registers and Eval registers are different?

[Gencay]

EVAL BOARD (stm32mp15-ddr.dtsi)
 
#define DDR_PCFGR_0 0x00010000
#define DDR_PCFGR_1 0x00010001
 
My Board (TF-A/stm32mp15-mx-dtsi)
 
#define DDR_PCFGR_0 0x00000000
#define DDR_PCFGR_1 0x00000000

Why are these registers different even though I have the same configuration?

[PatrickF · Accepted solution]

HI @Gencay​ ,

Although impact should be very limited (linked to read/write ordering inside the DDR controller), I confirm that the value in official delivery are the recommended one (See also AN5168).

CubeMX generation will be aligned in future versions.

To sum up, both DDR_PCFGR_0 and DDR_PCFGR_1 should be set to 0x00010000

(I assume 0x00010001 in your post is a typo, if not please provide a link where you found this value)

Regards.

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