udelay make at91sam9260 board freeze
Hi all,
Strange problem indeed.
U-boot freeze when I do fatload instruction. After several investigation, the crash appear during the udelay instruction.....
But if i replace the original code of udelay instruction by a simple for loop, it works....
Any ideas ?
Regards,
Gonzague
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Hi Gonzague,
Quoted 6 lines
Strange problem indeed.
U-boot freeze when I do fatload instruction. After several investigation, the crash appear during the udelay instruction.....
But if i replace the original code of udelay instruction by a simple for loop, it works....
Any ideas ?
Does the board freeze or is it really a veerrry long delay? I am tempted to say it is the latter. If you check the archives you will see that there is always a mist of confusion around CFG_HZ and related defines which udelay uses (cpu/arm920t/at91rm9200/interrupts.c).
So I suggest to check the values used there on your platform (CFG_HZ should be 1000 btw.) and find out why udelay spins too long. Having done that, send a patch and rejoice!
Best wishes
Detlev
Signature · 5 lines
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