Esto es lo que me pone al borrar la particion
1.0.0 U-Boot 1.1.3 (Mar 16 2011 - 18:01:52) - SVN revision : 15534
Model: ASL-26564/ES
Board: Ralink APSoC DRAM: 32 MB
config usb..
Command "mdio": 0x8020aeb0 => 0x81fb6eb0
Command "cp": 0x8020c758 => 0x81fb8758
Command "erase": 0x8020c8a8 => 0x81fb88a8
Command "go": 0x8020dc70 => 0x81fb9c70
Command "reset": 0x8021c080 => 0x81fc8080
Command "bootm": 0x8020e4e4 => 0x81fba4e4
Command "tftpboot": 0x8020fdd0 => 0x81fbbdd0
Command "printenv": 0x80210390 => 0x81fbc390
Command "setenv": 0x80210f88 => 0x81fbcf88
Command "saveenv": 0x802110f8 => 0x81fbd0f8
Command "version": 0x80211220 => 0x81fbd220
Command "help": 0x8021126c => 0x81fbd26c
Command "?": 0x8021126c => 0x81fbd26c
Command "httpsvr": 0x80215630 => 0x81fc1630
Command "md": 0x80215b50 => 0x81fc1b50
Command "mm": 0x80215e88 => 0x81fc1e88
Command "nm": 0x80215ee0 => 0x81fc1ee0
Command "mw": 0x80215f38 => 0x81fc1f38
spi_wait_nsec: 5f
spi device id: 1 20 18 3 1 (20180301)
find flash: Sfl128p
============================================
Ralink UBoot Version: 3.3 Alpha
--------------------------------------------
ASIC 3052_MP2 (Port5<->RvMII)
DRAM component: 128 Mbits SDR
DRAM bus: 32 bit
Total memory: 32 MBytes
Flash component: SPI Flash
Date:Mar 16 2011 Time:18:01:52
============================================
icache: sets:256, ways:4, linesz:32 ,total:32768
dcache: sets:128, ways:4, linesz:32 ,total:16384
## Powering down port 0 ~ 4.
Please choose the operation:
1: Load system code to SDRAM via TFTP.
2: Load system code then write to Flash via TFTP.
3: Boot system code via Flash (default).
4: Entr boot command line interface.
9: Load Boot Loader code then write to Flash via TFTP.
You choosed 4
0
## Powering up port 0 ~ 4.
4: System Enter Boot Command Line Interface.
1.0.0 U-Boot 1.1.3 (Mar 16 2011 - 18:01:52)
RT3052 # erase linux
Erase linux kernel block !! <=======esto no me suena bien

From 0x50000 length 0xFB0000
raspi_erase: offs:50000 len:fb0000
********************************************************************
*********************************************************************
**********************************************************************
********************************************
RT3052 #
Y al intentar instalar me ha dado esto

perdon por le del log es todo lo que he podido recuperar
[ 11.630000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0004: 0xa8b8 instead
[ 11.650000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0008: 0x7184 instead
[ 11.670000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e000c: 0x5c99 instead
[ 11.690000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0010: 0x6704 instead
[ 11.710000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0014: 0x2147 instead
[ 11.730000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0018: 0x9331 instead
[ 11.740000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e001c: 0xc02d instead
[ 11.760000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0020: 0x3a04 instead
[ 11.780000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008e0024: 0xe04b instead
[ 11.800000] jffs2: Further such events for this erase block will not be printed
[ 11.950000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0000: 0x9f48 instead
[ 11.970000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0004: 0x4c9c instead
[ 11.990000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0008: 0x0875 instead
[ 12.000000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f000c: 0x667c instead
[ 12.020000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0010: 0xc055 instead
[ 12.040000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0014: 0xf53e instead
[ 12.060000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0018: 0x1432 instead
[ 12.080000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f001c: 0xe468 instead
[ 12.100000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0020: 0x6176 instead
[ 12.120000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x008f0024: 0x98e4 instead
[ 12.140000] jffs2: Further such events for this erase block will not be printed
[ 12.280000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900000: 0x1aff instead
[ 12.300000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900004: 0x7edd instead
[ 12.320000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900008: 0xe434 instead
[ 12.340000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0090000c: 0xb2a0 instead
[ 12.360000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900010: 0xcdce instead
[ 12.380000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900014: 0x4c70 instead
[ 12.400000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900018: 0x590c instead
[ 12.420000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0090001c: 0xab85 instead
[ 12.430000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900020: 0x6b6f instead
[ 12.450000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00900024: 0x8d77 instead
[ 12.470000] jffs2: Further such events for this erase block will not be printed
[ 12.620000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910000: 0xcdbf instead
[ 12.640000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910004: 0xdaf3 instead
[ 12.660000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910008: 0x52c8 instead
[ 12.680000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0091000c: 0xc79b instead
[ 12.690000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910010: 0xa317 instead
[ 12.710000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910014: 0xfb56 instead
[ 12.730000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910018: 0xa773 instead
[ 12.750000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0091001c: 0xda96 instead
[ 12.770000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910020: 0xc719 instead
[ 12.790000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00910024: 0xe389 instead
[ 12.810000] jffs2: Further such events for this erase block will not be printed
[ 12.950000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920000: 0xc641 instead
[ 12.970000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920004: 0xc39d instead
[ 12.990000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920008: 0x1703 instead
[ 13.010000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0092000c: 0x9d1e instead
[ 13.030000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920010: 0x77be instead
[ 13.050000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920014: 0xb2f6 instead
[ 13.070000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920018: 0xf860 instead
[ 13.090000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0092001c: 0x271d instead
[ 13.110000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920020: 0x299c instead
[ 13.130000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00920024: 0x6412 instead
[ 13.150000] jffs2: Further such events for this erase block will not be printed
[ 13.170000] jffs2: Old JFFS2 bitmask found at 0x00920954
[ 13.180000] jffs2: You cannot use older JFFS2 filesystems with newer kernels
[ 13.320000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930000: 0x8199 instead
[ 13.330000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930004: 0x2690 instead
[ 13.350000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930008: 0x4c51 instead
[ 13.370000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0093000c: 0x2676 instead
[ 13.390000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930010: 0xa0ff instead
[ 13.410000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930014: 0xc92f instead
[ 13.430000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930018: 0x1781 instead
[ 13.450000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0093001c: 0xc8ce instead
[ 13.470000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930020: 0x18eb instead
[ 13.490000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00930024: 0x1bfc instead
[ 13.510000] jffs2: Further such events for this erase block will not be printed
[ 13.640000] jffs2: Old JFFS2 bitmask found at 0x0093ea44
[ 13.650000] jffs2: You cannot use older JFFS2 filesystems with newer kernels
[ 13.680000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940000: 0x0f39 instead
[ 13.700000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940004: 0xe5ee instead
[ 13.720000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940008: 0xad91 instead
[ 13.730000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0094000c: 0x072b instead
[ 13.750000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940010: 0x25a4 instead
[ 13.770000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940014: 0xfc60 instead
[ 13.790000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940018: 0x29c3 instead
[ 13.810000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0094001c: 0x8310 instead
[ 13.830000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940020: 0x8565 instead
[ 13.850000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00940024: 0x537a instead
[ 13.870000] jffs2: Further such events for this erase block will not be printed
[ 13.890000] jffs2: Old JFFS2 bitmask found at 0x0094044c
[ 13.900000] jffs2: You cannot use older JFFS2 filesystems with newer kernels
[ 14.040000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950000: 0x2451 instead
[ 14.060000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950004: 0xfcc4 instead
[ 14.080000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950008: 0x1425 instead
[ 14.100000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0095000c: 0x8d8b instead
[ 14.110000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950010: 0x4122 instead
[ 14.130000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950014: 0x2337 instead
[ 14.150000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950018: 0x0004 instead
[ 14.170000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0095001c: 0x1623 instead
[ 14.190000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950020: 0x7faf instead
[ 14.210000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00950024: 0xf5c2 instead
[ 14.230000] jffs2: Further such events for this erase block will not be printed
[ 14.370000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960000: 0x81fa instead
[ 14.390000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960004: 0xdbbd instead
[ 14.410000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960008: 0x66c1 instead
[ 14.430000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0096000c: 0xda67 instead
[ 14.450000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960010: 0x19a4 instead
[ 14.470000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960014: 0x2b8b instead
[ 14.490000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960018: 0x05e5 instead
[ 14.510000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0096001c: 0x95a5 instead
[ 14.530000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960020: 0xb2c7 instead
[ 14.540000] jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00960024: 0x786b instead
[ 14.560000] jffs2: Further such events for this erase block will not be printed
[ 14.710000] jffs2: Empty flash at 0x0096efbc ends at 0x0096f000
[ 14.730000] jffs2_scan_eraseblock(): End of filesystem marker found at 0x970000
[ 14.740000] jffs2: Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes
[ 14.760000] jffs2: empty_blocks 193, bad_blocks 0, c->nr_blocks 234
[ 14.770000] VFS: Cannot open root device "(null)" or unknown-block(31,4): error -5
[ 14.790000] Please append a correct "root=" boot option; here are the available partitions:
[ 14.800000] 1f00 192 mtdblock0 (driver?)
[ 14.810000] 1f01 64 mtdblock1 (driver?)
[ 14.820000] 1f02 64 mtdblock2 (driver?)
[ 14.830000] 1f03 896 mtdblock3 (driver?)
[ 14.840000] 1f04 14976 mtdblock4 (driver?)
[ 14.850000] 1f05 15872 mtdblock5 (driver?)
[ 14.870000] 1f06 64 mtdblock6 (driver?)
[ 14.880000] 1f07 64 mtdblock7 (driver?)
[ 14.890000] 1f08 64 mtdblock8 (driver?)
[ 14.900000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,4)
/\
/ \
¡¡
¡¡
Ahora el error lo da en otro sector con el mismo firmware

Edición: corregido un descuadre.