nios2-mmu linux stuck on #Switching to clocksource timer#?

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Did You set the system timer to have IRQ 0? It's a requirement.

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Yes, I try to set it, but it stuck more ealy,see the result:

cc version 4.1.2)# 51 Sun Oct 9 22:31:39 CST 2011
bootconsole  enabled
early_console initialized at 0xe2004000
On node 0 totalpages: 2048
free_area_init_node: node 0, pgdat d0334390, node_mem_map d034e8a0
  DMA zone: 16 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 2032 pages, LIFO batch:0
pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
pcpu-alloc:  0 
Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 2032
Kernel command line: bootargs="debug console=ttyAL0,115200"
PID hash table entries: 32 (order: -5, 128 bytes)
Dentry cache hash table entries: 1024 (order: 0, 4096 bytes)
Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Memory available: 4696k/3377k RAM (1043k kernel code, 2333k data)
NR_IRQS:32
Calibrating delay loop... 

why?:cry:

If I comment out the calibrate_delay() in the main.c of kernel, I still stuck on the# Switching to clocksource timer#,see the result:

...
PID hash table entries: 32 (order: -5, 128 bytes)
Dentry cache hash table entries: 1024 (order: 0, 4096 bytes)
Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Memory available: 4696k/3377k RAM (1043k kernel code, 2333k data)
NR_IRQS:32
pid_max: default: 4096 minimum: 301
Mount-cache hash table entries: 512
bio: create slab <bio-0> at 0
Switching to clocksource timer

regards