Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

Hi,
i have problems with getting my kernel started. I followed the wiki page instructions for creating the kernel + rootfs with yocto, the pre- and bootloader and the ubootenv.bin and created the image with the provided make_sd_image script.
The used ubootenv is following:

autoload=no
bootdelay=5
baudrate=115200
bootargs=console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait
bootcmd=run mmcload; run mmcboot
verify=n
preboot=run initphy;run setup_usb
initphy=gpio c 28; gpio s 28; sleep 1
setup_usb=gpio set 0; gpio clear 9; gpio set 9
loadfdtaddr=0x00000100
loadkerneladdr=0x7fc0
loadinitramfsaddr=0x3000000
loadfpgaaddr=0x2000000
loadfpgasize=0x700000
fpgaload=run bridge_disable;fpga load 0 ${loadfpgaaddr} ${loadfpgasize}; run bridge_enable_handoff
fpga=0
mmcboot=run mmcsetbootargs;run fpgaload;bootm ${loadkerneladdr} - ${loadfdtaddr}
mmcsetbootargs=setenv bootargs console=ttyS0,115200 root=${mmcroot} rw rootwait
mmcload=mmc rescan;run mmcloadkernel;run mmcloadfdt;run mmcloadfpga
mmcloadkernel=${mmcloadcmd} mmc 0:${mmcloadpart} ${loadkerneladdr} ${mmckernelloc}
mmcloadfdt=${mmcloadcmd} mmc 0:${mmcloadpart} ${loadfdtaddr} ${mmcfdtloc}
mmcloadfpga=${mmcloadcmd} mmc 0:${mmcloadpart} ${loadfpgaaddr} ${mmcfpgaloc}
mmcloadcmd=ext2load
mmcloadpart=2
mmcroot=/dev/mmcblk0p2
mmcfdtloc=/boot/socfpga_mitysom5csx_devkit.dtb
mmckernelloc=/boot/uImage
mmcfpgaloc=/home/root/dev_5csx_h6_42a.rbf
qspiboot=run qspisetbootargs;run fpgaload;bootm ${loadkerneladdr} ${loadinitramfsaddr} ${loadfdtaddr}
qspisetbootargs=setenv bootargs console=ttyS0,115200 root=/dev/ram0
qspikernelloc=0xe0000
qspikernelsize=0x600000
qspifdtloc=0x50000
qspifdtsize=0x6000
qspifpgaloc=0x8E0000
qspiinitfsramloc=0x0
qspiinitfsramsize=0x1000000
qspiload=run qspiloadkernel;run qspiloadfdt;run qspiloadfpga;run qspiloadinitramfs
qspiloadkernel=sf probe 0; sf read ${loadkerneladdr} ${qspikernelloc} ${qspikernelsize}
qspiloadfdt=sf probe 0; sf read ${loadfdtaddr} ${qspifdtloc} ${qspifdtsize}
qspiloadfpga=sf probe 0; sf read ${loadfpgaaddr} ${qspifpgaloc} ${loadfpgasize}
qspiloadinitramfs=sf probe 1; sf read ${loadinitramfsaddr} ${qspiinitfsramloc} ${qspiinitfsramsize}

I noticed that there is configuration for uImage and not for zImage so i updated the ubootenv according to the FAQ

mmcboot=run mmcsetbootargs;run fpgaload;bootz ${loadkerneladdr} - ${loadfdtaddr}
mmckernelloc=/boot/zImage

when i try to boot that it stucks on the output "Starting kernel ...". Nothing happens anymore.

After that i tried to convert the zImage to a uImage to use the default configuration by using the command

mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 -n "Linux kernel" -d mypath/zImage uImage

which leads to the output

** File not found /home/root/dev_5csx_h6_42a.rbf **
## Starting application at 0x3FF755C4 ...
## Application terminated, rc = 0x0
altera_load: Failed with error code -4
## Starting application at 0x3FF755C4 ...
## Application terminated, rc = 0x0
## Booting kernel from Legacy Image at 00007fc0 ...
   Image Name:   Linux kernel
   Created:      2020-01-10  10:05:21 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    4078616 Bytes = 3.9 MiB
   Load Address: 80008000
   Entry Point:  80008000
## Flattened Device Tree blob at 00000100
   Booting using the fdt blob at 0x00000100
   Loading Kernel Image ... data abort

    MAYBE you should read doc/README.arm-unaligned-accesses

pc : [<3ff9305c>]          lr : [<3ff815bb>]
sp : 3ff313b8  ip : 00000550     fp : 00000000
r10: 00008000  r9 : 00010000     r8 : 3ff31f60
r7 : 00010000  r6 : 00008000     r5 : 80018000  r4 : 000000fe
r3 : 00017fff  r2 : ffff8000     r1 : 80018000  r0 : 80008000
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32
Resetting CPU ...

and the board resets forever

Is there a speacial uboot config for zImages or did i miss something?

BR
Marius