Closed Failed to load kernel image after uboot

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mah941

I am having an issue with fiber layer 1 switch.
It is loading U boot but failed to load linux kernel.

following as short description of the issue. I can interrupt booting and log in to uboot prompt.
Appreciate any hints or workaround. Thank you.


RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 11264KiB [1 disk] into ram disk... done.
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
VFS: Mounted root (ext2 filesystem) on device 1:0.



Starting initramfs boot...
Waiting 5 seconds for devices to settle...



Max mount count for / (mmcblk0p2) partition (14/10)
mmcblk0: retrying using single block read
mmcblk0: error -110 sending read/write command, response 0x0, card status 0x480b00
end_request: I/O error, dev mmcblk0, sector 12272
 

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This is a Linux question. What do you expect us to do about this? This is the wrong place to ask.
 
With u-boot residing in either SPI flash or the eMMC it becomes difficult to work on the defect.

Some diagnostic methods: Short out MMC to have it boot off SD CARD. Same with SPI flash.
Sometimes you must study the datasheet for the SPI flash chip and short it out at boot to let it boot up off SD card.

You would have to prepare a SD card with proper FSL P1020 u-boot.
Then you can work on the eMMC and see if device is going bad or simply fs corruption.
 
One last post.

A simple check to see if eMMC is shot would be to load the original firmware on the device.
If you still see filesystem corruption then you can assume disk/controller is going bad.
This device is at least 14 years old. How long do eMMC last?

It looks like u-boot resides in SPI Flash:
Creating 5 MTD partitions on "f8000000.flash":
Click to expand...
 
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