Stm32mp157 Programming NOR flash

[uouox]

Trying to load TF-A and uboot into NOR flash, but I always get this error.

SF: Detected w25q256 with page size 256 Bytes, erase size 64 KiB, total 32 MiB

mtdids=nor0=nor0 & mtdparts=mtdparts=nor0:256k(fsbl1),256k(fsbl2),2m(ssbl),512k(u-boot-env),-(nor_user)

MTD device nor0: size=33554432 erasesize=65536

 available address = 0x0..0x2000000

 erase size = 0x10000

 full_update = 1

id : Opt Phase   Name target.n dev.n addr   size   part_off part_size

01 : 1 04     fsbl1 00.1 03.00 00000000 02000000 00000000 00040000

Error: fsbl1 (0x4): Bad size for partition 1 (fsbl1) at 0x0 = 0x2000000 <> 0x40000 expected

It looks like no mtd partition table loaded but the mtdparts seems correct.

[uouox · Accepted solution]

Solved. The flash layout must include an empty partition to fill all unused space.

[PatrickF]

Hi @uouox​ ,

Glad to see you solved your issue. Maybe this would have helped

https://wiki.st.com/stm32mpu/wiki/STM32_MPU_Flash_mapping#NOR_memory_mapping

Regards,

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