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From: gnemas at gmail.com <gnemas@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Whose responsibility is it to enable FPU?
Date: Mon, 14 Jun 2010 19:02:25 +0000	[thread overview]
Message-ID: <0016e6480e82187a72048902213a@google.com> (raw)

I built u-boot for a 440EPx board derived from the sequoia configuration.

I am using an FPU-enabled gcc cross compiler.

U-Boot runs fine and successfully boots my operating system (Linux and  
uClibc-based root filesystem).

However, I was having a problem running busybox that I traced to errors  
occurring executing setjmp, which attempts to save floating point registers.

Then I realized that the FPU was not enabled in the MSR or in the ccr0  
register.

Have I misconfigured something, or should I go ahead and add code to u-boot  
to enable the FPU?

Thanks,

Gregg

             reply	other threads:[~2010-06-14 19:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-14 19:02 gnemas at gmail.com [this message]
2010-06-14 20:10 ` [U-Boot] Whose responsibility is it to enable FPU? Måns Rullgård
2010-06-14 20:30 ` Wolfgang Denk
2010-06-14 21:08   ` gnemas at gmail.com
2010-06-14 21:23     ` Wolfgang Denk
2010-06-15 18:12     ` gnemas at gmail.com
2010-06-18  4:17 ` Aggrwal Poonam-B10812

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