[U-Boot] Linux kernel hang with FDT changes

[Ronny D]

Hi,
 
I am using customized ppc440 based board.
 
We have created a .dtb file, u-boot should not update the file because of that we have added following macro in config file
 
#define CONFIG_OF_LIBFDT                 1
#undef CONFIG_OF_BOARD_SETUP  
 
With the above change kernel code gets hang with following log:

 
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00030000
MMU: Allocated 1088 bytes of context maps for 255 contexts
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 195072
Kernel command line:
PID hash table entries: 4096 (order: 12, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 755584k/786432k available (1860k kernel code, 30508k reserved, 112k data
, 60k bss, 116k init)
Kernel virtual memory layout:
  * 0xffffe000..0xfffff000  : fixmap
  * 0xfde00000..0xfe000000  : consistent mem
  * 0xfddfe000..0xfde00000  : early ioremap
  * 0xf1000000..0xfddfe000  : vmalloc & ioremap
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:512
UIC0 (32 IRQ sources) at DCR 0x20
UIC1 (32 IRQ sources) at DCR 0x30
UIC1 (32 IRQ sources) at DCR 0x60

 
 
 
When we debug the u-boot code by added the following flag
#define CONFIG_OF_BOARD_SETUP   1 
Kernel works fine.
 
Is there any dependency of CONFIG_OF_BOARD_SETUP flag for .dtb file?

 
Ronny