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From: "Kevin A. Sapp" <Kevin.Sapp@catapult.com>
To: LinuxPPC <linuxppc-embedded@lists.linuxppc.org>
Subject: io space mapping and sync
Date: Thu, 11 Mar 2004 15:43:51 -0500	[thread overview]
Message-ID: <4050CF87.9020104@catapult.com> (raw)
In-Reply-To: <404C5E13.9000700@246tNt.com>


Hello,

I am using an 8275 and map memory.
When I map my LEDS physical 0x40000000 to 0x40000000
using a BAT I can hit them, several minutes into execution
during a sync, the system hangs.

I have tried to map this to a smaller region using the
mmu (io_block_mapping) but when I do the
region is no longer accessable.  THis is the
preferred method as I have a large region at
3000.0000 that I want to map using the remaining
BAT.

What should I do?  Any clues where to search for
an explaination of what is going on?


Thanks
Kevin


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

      parent reply	other threads:[~2004-03-11 20:43 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-05 12:02 Linux 2.6 on MPC5200. First port attempt ... Early problems ;( Sylvain Munaut
2004-03-05 17:01 ` Linux 2.6 on MPC5200. Early problems + 2.4 questions Sylvain Munaut
2004-03-08  7:43   ` Gerhard Jaeger
2004-03-08 11:50     ` linuxppc_2_4_devel Memory map on PPC / MPC5200 Sylvain Munaut
2004-03-08 14:11       ` Wolfgang Denk
2004-03-08 16:28         ` Sylvain Munaut
2004-03-11 20:43       ` Kevin A. Sapp [this message]

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