I want to recover some parameters from my NAND flash by using saveenv and loadenv but It does not work:
First I have used a big env0 partition to be sure bad blocks don't bother me.
devfs_add_partition("nand0", 0x00000, 0xF0000, PARTITION_FIXED, "env_raw");
dev_add_bb_dev("env_raw", "env0");
Then I try to edit,save & load /env/config
wrs-02:0B:AD:C0:FF:EE# edit /env/config
Then I change the eth0.addr
eth0.ethaddr=72:0B:AD:C0:FF:EE
PS1="wrs-$eth0.ethaddr# "
Ctrl+D
wrs-02:0B:AD:C0:FF:EE# . /env/config
wrs-72:0B:AD:C0:FF:EE# saveenv
saving environment
wrs-72:0B:AD:C0:FF:EE# loadenv
loading environment from /dev/env0
err -74
err -74
wrong crc on env
And if I reboot barebox I still load the default environment
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xbc (Micron NAND 512MiB 1,8V 16-b)
Scanning device for bad blocks
Bad eraseblock 0 at 0x00000000
err -74
envfs: wrong magic on /dev/env0
no valid environment found on /dev/env0. Using default environment
running /env/bin/init...
Moreover, I have noticed that each time I use saveenv command it add another bad block, and that sometime It does read something in /dev/env0 but without anything in /env
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xbc (Micron NAND 512MiB 1,8V 16-b)
Scanning device for bad blocks
Bad eraseblock 0 at 0x00000000
Bad eraseblock 1 at 0x00020000
Bad eraseblock 2 at 0x00040000
Bad eraseblock 665 at 0x05320000
Bad eraseblock 1553 at 0x0c220000
Bad eraseblock 1712 at 0x0d600000
Bad eraseblock 1997 at 0x0f9a0000
Bad eraseblock 2182 at 0x110c0000
Malloc space: 0x73b00000 -> 0x73efffff (size 4 MB)
Stack space : 0x73af8000 -> 0x73b00000 (size 32 kB)
read: No error
running /env/bin/init...
Someone know what I am doing wrong?
Benoit RAT LAMY
Engineer (Sw) \ Ingeniero (Sw)
fix. (+34) 958 285 024
cel. (+34) 617 989 123
e-mail: benoit@xxxxxxxxxxxxx
www.sevensols.com / www.sevensecurity.es
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