Posts by Alex_H

Alex_H · Sep 9th 2013

Just to give a little update here:

Obviously i had missed something. After reading the documentation again and again, i noticed it says VN01 for the NBoot version and mine is VN04. It seems the default partitioning in UBoot does not match with the VN04 NBoot configuration. Changing the partitioning had solved everything just fine.

Just wondering why those changes were made - it might be handy for my upcoming configuration.

Alex_H · Aug 30th 2013

It seems that Nboot stores Uboot in the Kernel partition and expects it to be there.

I had some odd behavior when updating the Kernel from Uboot so i did a little testing:

Code

U-Boot 2011.12 (Aug 28 2013 - 14:22:26)
CPU: Freescale VyBrid 600 family rev1.1 at 0 MHz
Board: Vybrid
DRAM: 256 MiB
WARNING: Caches not enabled
board_init: using internal PLL.
NAND: 128 MiB
MMC: FSL_SDHC: 0
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
In: serial
Out: serial
Err: serial
Net: FEC0, FEC1
Hit any key to stop autoboot: 0
Vybrid U-Boot > mtdparts
device nand0 <NAND>, # parts = 5
#: name size offset mask_flags
0: Nboot 0x00040000 0x00000000 1
1: Uboot 0x00080000 0x00040000 1
2: UbootEnv 0x00040000 0x000c0000 0
3: Kernel 0x00400000 0x00100000 0
4: TargetFS 0x07b00000 0x00500000 0
active partition: nand0,0 - (Nboot) 0x00040000 @ 0x00000000
defaults:
mtdids : nand0=NAND
mtdparts: mtdparts=NAND:256k(Nboot)ro,512k(Uboot)ro,256k(UbootEnv),4m(Kernel),-(TargetFS)

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Erase the Uboot partition and everything is fine:

Code

Vybrid U-Boot > nand erase.part Uboot
NAND erase.part: device 0 offset 0x40000, size 0x80000
Erasing at 0xa0000 -- 100% complete.
OK
Vybrid U-Boot > reset
resetting ...
U-Boot 2011.12 (Aug 28 2013 - 14:22:26)
CPU: Freescale VyBrid 600 family rev1.1 at 0 MHz
Board: Vybrid
DRAM: 256 MiB
WARNING: Caches not enabled
board_init: using internal PLL.
NAND: 128 MiB
MMC: FSL_SDHC: 0
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
In: serial
Out: serial
Err: serial
Net: FEC0, FEC1
Hit any key to stop autoboot: 0

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Erase the Kernel partition and Uboot is missing:

Code

Vybrid U-Boot > nand erase.part Kernel
NAND erase.part: device 0 offset 0x100000, size 0x400000
Erasing at 0x4e0000 -- 100% complete.
OK
Vybrid U-Boot > reset
resetting ...
No valid bootloader
F&S Nand Loader VN04 built Jul 17 2013 12:10:12
armStoneA5 Rev. 1.10
256MB RAM (1 chip) 128MB FLASH 396MHz no L2
booted primary image from page 0
Please select action
'd' -> Serial download of bootloader
'E' -> Erase flash
'B' -> Show bad blocks
Use NetDCUUsbLoader for USB download

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As far as i can tell something is a little mixed up here or am i missing something?

A fast solution would probably be to cerate an additional partition for the Kernel.

Best regards
Alex

Posts by Alex_H

Nboot writes Uboot to Kernel partition

Nboot writes Uboot to Kernel partition