Messages in this thread | | | Date | Mon, 15 Jun 2009 20:50:08 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH 2/3] [ARM] msm: make debugging UART (for DEBUG_LL) configurable |
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On Mon 2009-06-15 11:43:23, Brian Swetland wrote: > On Mon, Jun 15, 2009 at 11:34 AM, Pavel Machek<pavel@ucw.cz> wrote: > >> > ...and those that do, have it at fixed uart, no? > >> > >> Well, I'd like to support the SoC generally, not just Dream -- it's > >> used in a bunch of different devices, and there's nothing that forces > >> you to use UART3 everywhere (I certainly have seen some 7k hardware > >> that uses UART1 as the debug serial port). > > > > Aha, ok, I guess that should go to the changelog. (Nice bonus would be > > if it was automatically/correctly set up when user selects machine > > type... Actually, how does that work if you support few boards with > > same kernel...?) > > At this point a kernel for multiple boards with different DEBUG_LL > uarts doesn't work correctly -- I'm not sure this could be done > without making the debug macro code, etc, a lot messier (since it has > to write to the physical uart address in early boot and I believe that > happens before the machine type is determined, though maybe I'm > wrong).
Ok, makes sense. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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