[U-Boot] Linux 4.9 on cortex-M4 STM32F429-disc1

[Steven VALSESIA]

Hi,

I'm stuck since days with this problem, Linux don't boot.

My board flash start 0x0800 0000 2MB.
My board external RAM start at 0xD000 0000 8MB.
I have a Linux 4.9, near the default stm32f2_defconfig.
U-BOOT at 0x0800 0000.
DTB at 0x0804 0000.
XIP kernel at 0x0806 0000.

I just have "Starting kernel..." on last message.

I tried to add a LED toggle on the kernel start
(arch/arm/boot/compressed/head.S) and it's not called. Same asm code run
fine with u-boot on init.

more details here:
http://stackoverflow.com/questions/41321971/running-linux-4-9-on-cortex-m4-stm32f4-29i-disc1


If you have any clues, any idea, don't hesitate, I'm desperate.