[U-Boot] u-boot yaffs2 usage question

[E Robertson]

Hi All,
First, I've never used this filesystem before so excuse my ignorance.
I've added support in uboot but it seems to be failing at mount. The default 
mount point according to the source is /flash. Does that mean that I have to 
have a /flash directory in my filesystem? if I try other mount (namely "/") it 
doesn't seem to like that either. I've got jffs2 to work file with the same 
arrangement.
I've created a yffs2 filesystem on a nand device (nand0 ) using mtd where the 
first 80M I made yafs2. I also created several directories including /flash but 
it did not mount that either.
Some errors are below: I've added a few extra printfs to see where I'm going.

yls                               
yaffs_StartUp                                
Version 2:                                   
> 2.6.17                                     
NAME: <NULL> (NAND 256MiB 3,3V 8-bit), Yffs2? 1 , blocks 2048
yaffs_initialise                                             
yaffs: Mounting /flash                                       
yaffsfs_FindDevice                                           
yaffs: Could not allocate Tnodes                             
Error mounting /flash, return value: -12                     
yaffsfs_FindDevice                                           
opendir failed     


ymount /                                  
yaffs_StartUp                                        
Version 2:                                           
> 2.6.17                                             
NAME: <NULL>, Yffs2? 1 , blocks 2048                 
yaffs_initialise                                     
yaffs: Mounting /                                    
yaffsfs_FindDevice                                   
Error mounting /, return value: -19 
               

mtdparts                                  

---mtdparts_init---
last_ids  : nand0=nand0
env_ids   : nand0=nand0
last_parts: mtdparts=nand0:81920k at 0(NK),-(DATA)
env_parts : mtdparts=nand0:81920k at 0(NK),-(DATA)

last_partition : nand0,0
env_partition  : nand0,0

---list_partitions---

device nand0 <nand0>, # parts = 2
 #: name                        size            offset          mask_flags
 0: NK                  0x05000000      0x00000000      0                 
 1: DATA                0x0b000000      0x05000000      0                 

--- mtd_part_info: partition number 0 for device nand0 (nand0)

active partition: nand0,0 - (NK) 0x05000000 @ 0x00000000

defaults:
mtdids  : nand0=nand0
mtdparts: mtdparts=nand0:81920k at 0(NK),-(DATA)