Hi Stefan,
I've tried using the uboot plugin (RUN_OPT += --include image/uboot). I've been able to generate a uImage successfully. When I tried to flash it on to the board, it stops with following log (was observed in TeraTerm while using the MfgTool):
U-Boot 2009.08 (Aug 16 2013 - 14:38:59)
CPU: Freescale i.MX6 family TO1.5 at 792 MHz
Thermal sensor with ratio = 175
Temperature: 42 C, calibration data 0x5524cd69
mx6q pll1: 792MHz
mx6q pll2: 528MHz
mx6q pll3: 480MHz
mx6q pll8: 50MHz
ipg clock : 66000000Hz
ipg per clock : 66000000Hz
uart clock : 80000000Hz
cspi clock : 60000000Hz
ahb clock : 132000000Hz
axi clock : 264000000Hz
emi_slow clock: 132000000Hz
ddr clock : 528000000Hz
usdhc1 clock : 198000000Hz
usdhc2 clock : 198000000Hz
usdhc3 clock : 198000000Hz
usdhc4 clock : 198000000Hz
nfc clock : 24000000Hz
Board: i.MX6Q-SABRESD: unknown-board Board: 0x63015 [POR ]
Boot Device: MMC
I2C: ready
DRAM: 1 GB
MMC: FSL_USDHC: 0,FSL_USDHC: 1,FSL_USDHC: 2,FSL_USDHC: 3
Using default environment
In: serial
Out: serial
Err: serial
Net: got MAC address from IIM: 00:00:00:00:00:00
FEC0 [PRIME]
Hit any key to stop autoboot: 0
## Booting kernel from Legacy Image at 10800000 ...
Image Name:
Image Type: ARM Linux Kernel Image (gzip compressed)
Data Size: 2075251 Bytes = 2 MB
Load Address: 10001000
Entry Point: 10001000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 10c00000 ...
Image Name: uboot initramfs rootfs
Image Type: ARM Linux RAMDisk Image (gzip compressed)
Data Size: 4545326 Bytes = 4.3 MB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
Starting kernel ...
Also, I'm using the Android RAMDisk Image. Would that be a potential cause for the problem? I've used the following XML script to flash the image on to the board (UCL file for MfgTool):
<UCL>
<CFG>
<STATE name="BootStrap" dev="MX6Q" vid="15A2" pid="0054"/>
<STATE name="Updater" dev="MSC" vid="066F" pid="37FF"/>
</CFG>
<LIST name="SabreSD-eMMC" desc="Choose eMMC as media">
<CMD state="BootStrap" type="boot" body="BootStrap" file ="u-boot-mx6q-sabresd.bin" >Loading U-boot</CMD>
<CMD state="BootStrap" type="load" file="files/demo/uimage" address="0x10800000"
loadSection="OTH" setSection="OTH" HasFlashHeader="FALSE" >Loading Kernel.</CMD>
<CMD state="BootStrap" type="load" file="initramfs.cpio.gz.uboot" address="0x10C00000"
loadSection="OTH" setSection="OTH" HasFlashHeader="FALSE" >Loading Initramfs.</CMD>
<CMD state="BootStrap" type="jump" > Jumping to OS image. </CMD>
<CMD state="Updater" type="push" body="$ dd if=/dev/zero of=/dev/mmcblk0 bs=512 seek=1536 count=16">clean up u-boot parameter</CMD>
<!--CMD state="Updater" type="push" body="$ echo 1 > /sys/devices/platform/sdhci-esdhc-imx.3/mmc_host/mmc0/mmc0:0001/boot_config">access boot partition 1</CMD-->
<CMD state="Updater" type="push" body="$ echo 0 > /sys/block/mmcblk0boot0/force_ro">access boot partition 1</CMD>
<CMD state="Updater" type="push" body="send" file="files/demo/mmc_img">Sending U-Boot</CMD>
<CMD state="Updater" type="push" body="$ dd if=$FILE of=/dev/mmcblk0 bs=512 seek=2 skip=2">write U-Boot to sd card</CMD>
<!-- <CMD state="Updater" type="push" body="$ dd if=$FILE of=/dev/mmcblk0p1 bs=1k seek=1 skip=1 conv=fsync">write U-Boot to sd card</CMD> -->
<CMD state="Updater" type="push" body="$ echo 8 > /sys/devices/platform/sdhci-esdhc-imx.3/mmc_host/mmc0/mmc0:0001/boot_config">access user partition and enable boot partion 1 to boot</CMD>
<CMD state="Updater" type="push" body="send" file="mksdcard-android.sh.tar">Sending partition shell</CMD>
<CMD state="Updater" type="push" body="$ tar xf $FILE "> Partitioning...</CMD>
<CMD state="Updater" type="push" body="$ sh mksdcard-android.sh /dev/mmcblk0"> Partitioning...</CMD>
<CMD state="Updater" type="push" body="$ ls -l /dev/mmc* ">Formatting sd partition</CMD>
<CMD state="Updater" type="push" body="pipe dd of=/dev/mmcblk0p5 bs=512" file="files/demo/demo.img">Sending and writting demo.img</CMD>
<CMD state="Updater" type="push" body="frf">Finishing rootfs write</CMD>
<CMD state="Updater" type="push" body="$ echo Update Complete!">Done</CMD>
</LIST>
</UCL>
The script stops executing at "Jumping to OS image". Can you give me any leads as to where I'm going wrong?
Note: I've generated the "mmc_img" file using the "create_uboot" tool provided in the genode tools.