Unable to mount root file system with message "VFS: Cannot open root device mtdblock ..."

Hello.

I am trying to replace MMC card (all work fine) in my BF533 device by Serial Flash. 

U-Boot is moved to sf and boot fine, sf work : 

================================================
bfin> sf probe 2                                                                                                                                                            
SF: Detected S25FL128S_64K with page size 256 Bytes, erase size 64 KiB, total 16 MiB                                                                                        
bfin>                                                                                       
================================================

I write uImage (with initramfs) to offset 0x100000 and test if. All right. I write rootfs.jffs2 to offset 0x700000 and manualy mount it to /mnt:

================================================
m25p80 spi0.10: s25fl129p1 (16384 Kbytes)                                                                                                                   
Creating 3 MTD partitions on "m25p80":                                                                                                                      
0x000000000000-0x000000100000 : "reserve(spi)"                                                                                                              
0x000000100000-0x000000700000 : "linux kernel(spi)"                                                                                                         
0x000000700000-0x000000d00000 : "file system(spi)"                                                                                                          
...
root:/> mount -t jffs2 /dev/mtdblock2 /mnt                                                                                                                  
root:/> ls /mnt                                                                                                                                             
bin       etc       lib       mnt       root      srv       test.txt  usr                                                                                   
dev       init      lib32     proc      sbin      sys       tmp       var                                                                                   
root:/>    
==============================================

After that  I set environment in U-Boot:

=============================================
bfin> printenv                                                                                                                                              
baudrate=115200                                                                                                                                             
bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2 clkin_hz=25000000 earlyprintk=serial,uart0,115200 console=ttyBF0,115200                                    
...
==============================================

Load vmImage (without initramfs) and boot it:

==============================================
bfin> loadb                                                                                                                                                 
## Ready for binary (kermit) download to 0x01000000 at 115200 bps..
bootm                                                                                                                                                                       
## Booting kernel from Legacy Image at 01000000 ...                                                                                                                         
  Image Name:   bf533-0.6-3.10.10-ADI-2014R1                                                                                                                               
  Image Type:   Blackfin Linux Kernel Image (gzip compressed)                                                                                                              
  Data Size:    1181793 Bytes = 1.1 MiB                                                                                                                                    
  Load Address: 00001000                                                                                                                                                   
  Entry Point:  00202620                                                                                                                                                   
  Verifying Checksum ... OK                                                                                                                                                
  Uncompressing Kernel Image ... OK                                                                                                                                        
Starting Kernel at = 00202620                                                                                                                                               
Linux version 3.10.10-ADI-2014R1 (kv193@E450-OpenSUSE.suse) (gcc version 4.3.5 (ADI-2014R1-RC2) ) #22 Mon Feb 4 22:53:12 MSK 2019                                           
register early platform devices                                                                                                                                             
bootconsole [early_shadow0] enabled                                                                                                                                         
bootconsole [early_BFuart0] enabled                                                                                                                                         
early printk enabled on early_BFuart0                                                                                                                                       
Board Memory: 32MB                                                                                                                                                          
Kernel Managed Memory: 32MB                                                                                                                                                 
Memory map:                                                                                                                                                                 
 fixedcode = 0x00000400-0x00000490                                                                                                                                         
 text      = 0x00001000-0x0015cfb0                                                                                                                                         
 rodata    = 0x0015cfb0-0x001d07b8                                                                                                                                         
 bss       = 0x001d1000-0x001e4284                                                                                                                                         
 data      = 0x001e42a0-0x001fc000                                                                                                                                         
   stack   = 0x001fa000-0x001fc000                                                                                                                                         
 init      = 0x001fc000-0x00218000                                                                                                                                         
 available = 0x00218000-0x01f00000                                                                                                                                         
 DMA Zone  = 0x01f00000-0x02000000                                                                                                                                         
Hardware Trace active and enabled                                                                                                                                           
Boot Mode: 6                                                                                                                                                                
Reset caused by Software reset                                                                                                                                              
Blackfin support (C) 2004-2010 Analog Devices, Inc.                                                                                                                         
Compiled for ADSP-BF533 Rev 0.6                                                                                                                                             
Blackfin Linux support by http://blackfin.uclinux.org/                                                                                                                      
Processor Speed: 250 MHz core clock and 50 MHz System Clock                                                                                                                 
NOMPU: setting up cplb tables                                                                                                                                               
Instruction Cache Enabled for CPU0                                                                                                                                          
 External memory: cacheable in instruction cache                                                                                                                           
Data Cache Enabled for CPU0                                                                                                                                                 
 External memory: cacheable (write-back) in data cache                                                                                                                     
Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 7874                                                                                                  
Kernel command line: root=/dev/mtdblock2 rw rootfstype=jffs2 clkin_hz=25000000 earlyprintk=serial,uart0,115200 console=ttyBF0,115200                                        
PID hash table entries: 128 (order: -3, 512 bytes)                                                                                                                          
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)                                                                                                               
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)                                                                                                                 
Sorting __ex_table...                                                                                                                                                       
Memory available: 29272k/32768k RAM, (112k init code, 1391k kernel code, 637k data, 1024k dma, 332k reserved)                                                               
NR_IRQS:81                                                                                                                                                                  
Configuring Blackfin Priority Driven Interrupts                                                                                                                             
Calibrating delay loop... 495.10 BogoMIPS (lpj=990208)                                                                                                                      
pid_max: default: 32768 minimum: 301                                                                                                                                        
Mount-cache hash table entries: 512                                                                                                                                         
devtmpfs: initialized                                                                                                                                                       
Blackfin Scratchpad data SRAM: 4 KB                                                                                                                                         
Blackfin L1 Data A SRAM: 16 KB (16 KB free)                                                                                                                                 
Blackfin L1 Data B SRAM: 16 KB (16 KB free)                                                                                                                                 
Blackfin L1 Instruction SRAM: 64 KB (51 KB free)                                                                                                                            
NET: Registered protocol family 16                                                                                                                                          
Blackfin DMA Controller                                                                                                                                                     
cm_bf533_init(): registering device resources                                                                                                                               
bio: create slab <bio-0> at 0                                                                                                                                               
bfin-spi bfin-spi.0: master is unqueued, this is deprecated                                                                                                                 
bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs@ffc00500, dma channel@5                                                                      
Switching to clocksource bfin_cs_cycles                                                                                                                                     
NET: Registered protocol family 2                                                                                                                                           
TCP established hash table entries: 512 (order: 0, 4096 bytes)                                                                                                              
TCP bind hash table entries: 512 (order: -1, 2048 bytes)                                                                                                                    
TCP: Hash tables configured (established 512 bind 512)                                                                                                                      
TCP: reno registered                                                                                                                                                        
UDP hash table entries: 256 (order: 0, 4096 bytes)                                                                                                                          
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)                                                                                                                     
NET: Registered protocol family 1                                                                                                                                           
debug-mmrs: setting up Blackfin MMR debugfs                                                                                                                                 
jffs2: version 2.2. (SUMMARY)  © 2001-2006 Red Hat, Inc.                                                                                                                    
msgmni has been set to 57                                                                                                                                                   
io scheduler noop registered (default)                                                                                                                                      
bfin-uart: Blackfin serial driver                                                                                                                                           
bfin-uart.0: ttyBF0 at MMIO 0xffc00400 (irq = 21) is a BFIN-UART                                                                                                            
console [ttyBF0] enabled, bootconsole disabled                                                                                                                              
console [ttyBF0] enabled, bootconsole disabled                                                                                                                              
brd: module loaded                                                                                                                                                          
m25p80 spi0.10: found s25fl129p1, expected m25p64                                                                                                                           
m25p80 spi0.10: s25fl129p1 (16384 Kbytes)                                                                                                                                   
Creating 3 MTD partitions on "m25p80":                                                                                                                                      
0x000000000000-0x000000100000 : "reserve(spi)"                                                                                                                              
0x000000100000-0x000000700000 : "linux kernel(spi)"                                                                                                                         
0x000000700000-0x000000d00000 : "file system(spi)"                                                                                                                          
rtc-bfin rtc-bfin: rtc core: registered rtc-bfin as rtc0                                                                                                                    
bfin_wdt: initialized: timeout=20 sec (nowayout=0)                                                                                                                          
TCP: cubic registered                                                                                                                                                       
NET: Registered protocol family 17                                                                                                                                          
rtc-bfin rtc-bfin: setting system clock to 1970-01-01 00:54:33 UTC (3273)                                                                                                   
Warning: unable to open an initial console.                                                                                                                                 
VFS: Cannot open root device "mtdblock2" or unknown-block(31,2): error -2                                                                                                   
Please append a correct "root=" boot option; here are the available partitions:                                                                                             
1f00            1024 mtdblock0  (driver?)                                                                                                                                   
1f01            6144 mtdblock1  (driver?)                                                                                                                                   
1f02            6144 mtdblock2  (driver?)                                                                                                                                   
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)               
========================================

What I do wrong? Where mistake?