Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

I use MitySOM-5CSX dev kit and i would like to boot to a different kernel using kexec.

In my configuration:
KERNEL : https://github.com/altera-opensource/linux-socfpga/archive/socfpga-4.9.76-ltsi-rt.zip
COMPILER : https://releases.linaro.org/archive/14.04/components/toolchain/binaries/gcc-linaro-arm-linux-gnueabihf-4.8-2014.04_linux.tar.bz2

In the kernel configuration kexec is enabled

zcat /proc/config.gz |grep KEXEC
CONFIG_KEXEC_CORE=y
CONFIG_KEXEC=y

and the default kernel cmdline is

# cat /proc/cmdline 
root=/dev/mmcblk0p3 rootwait rw earlycon

First the kernel is loaded with :

# kexec -d -l zImagebkx --dtb=socfpga_cyclone5_mitysom5csx_devkit.dtb --command-line="root=/dev/mmcblk0p3 rw rootwait earlycon" 
kernel: 0xb69a8008 kernel_size: 0x4a55c8
MEMORY RANGES
0000000000000000-000000003fffffff (0)
zImage header: 0x016f2818 0x00000000 0x004a55c8
zImage size 0x4a55c8, file size 0x4a55c8
kexec_load: entry = 0x8000 flags = 0x280000
nr_segments = 2
segment[0].buf   = 0xb69a8008
segment[0].bufsz = 0x4a55c8
segment[0].mem   = 0x8000
segment[0].memsz = 0x4a6000
segment[1].buf   = 0x48fb0
segment[1].bufsz = 0x7cf4
segment[1].mem   = 0x1744000
segment[1].memsz = 0x8000

and then try to start new kernel

root@node1:~/kernels/kexec_base_kern/newroot/boot# kexec -d -e 
[ 1047.666926] kexec_core: Starting new kernel
[ 1047.671121] Disabling non-boot CPUs ...
[ 1047.728309] CPU1: shutdown
[ 1047.731981] Bye!

And then nothing. Finally after a while the board reboots automatically to U-boot

the kexec version used is

root@node1:~# kexec --version 
kexec-tools 2.0.14

The above kernel boots normally with uboot and i can see output in ttyS0.