[uClinux-dev] Re: [PATCH 2/9] nios2: Updates for kernel 2.6.23

2007-11-22 Thread Atle Nissestad
On Thursday 22. November 2007 06:02:15 Greg Ungerer wrote: Hi Atle, Atle Nissestad wrote: Fixes for USB drivers (sl811/isp116x) Signed-off-by: Atle Nissestad [EMAIL PROTECTED] Applied, thanks. Note that c++ style // comments are frowned upon. Only use standard c style /**/ comments

Re: [uClinux-dev] Interrupt latency on M5272

2007-11-22 Thread Michael Schnell
Linux is not a hard realtime OS ! So no maximum latency can be specified. Even not for ISRs (there is no spec how low at max the interrupt might be disabled). For Linux there is just some _soft_ realtime spec, meaning that the probability for a delay in lower than a certain value. Kernel

[uClinux-dev] uCsimm - any hope?

2007-11-22 Thread Jari Korva
Hi, I wiped the dust out of my good-old uCsimm device and tried to update it with a recent kernel. I built the toolchain (gcc 4.1.2, binutils 2.16), downloaded the uClinux-dist-20070130 and upgraded it with 2.6.22-uc0-big sources which seemed to be the most promising ones (it compiled with some

Re: [uClinux-dev] Interrupt latency on M5272

2007-11-22 Thread Harry Gunnarsson
I am fully aware of the fact that Linux is no RTOS. This uClinux system I am working on now, I wouldn't categorize as hard-real time. If it were, we wouldn't use uClinux. We use uClinux because there is a lot of good usable software available; good network stack, JFFS2 support, NFS support etc.

RE: [uClinux-dev] Deciding the boot-from area

2007-11-22 Thread Gavin Lambert
Quoth Karthik Balaguru: Is it good to boot from RAM or from a Flash that is good for XIP ? Technically, you're always booting from Flash somewhere along the line :) Starting the kernel from RAM is easier to get working, so that's probably the best way to start out using uClinux. Obviously this

Re: [uClinux-dev] Interrupt latency on M5272

2007-11-22 Thread Greg Ungerer
Hi Harry, Harry Gunnarsson wrote: Thanks Greg. Perfect, a pointer in the right direction helps a lot. Just one quick followup; In your opinion, given the 60Mhz clock on our M5272 CPU, does the interrupt latency sound in the right ballpark to you? I can't say I have ever closely looked at the