From: "Steven A. Falco" <sfalco@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-core] User space drivers on PPC440
Date: Thu, 08 Nov 2007 17:46:08 -0500 [thread overview]
Message-ID: <473391B0.5040809@domain.hid> (raw)
The rt_misc_get_io_region() has the "start" argument as an unsigned
long. On the PPC440, we have a 36-bit address space, where the I/O
registers are generally above the 4GB area. For example, the UART is at
address 0x1ef600300.
The Linux request_region call has "start" typed as a resource_size_t,
which is a u64 on the PPC440 (i.e. CONFIG_RESOURCES_64BIT is set even
though this is a 23-bit processor).
Is this something that should be handled by xeno-config? It could
append a CFLAG indicating the size of a resource.
Steve
next reply other threads:[~2007-11-08 22:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-08 22:46 Steven A. Falco [this message]
2007-11-08 22:47 ` [Xenomai-core] User space drivers on PPC440 Steven A. Falco
2007-11-08 23:58 ` Philippe Gerum
2007-11-09 11:41 ` Philippe Gerum
2007-11-09 16:03 ` Steven A. Falco
2007-11-09 16:44 ` Steven A. Falco
2007-11-09 17:02 ` Gilles Chanteperdrix
2007-11-09 17:03 ` Philippe Gerum
2007-11-09 17:31 ` Steven A. Falco
2007-11-10 16:28 ` Philippe Gerum
2007-11-11 17:27 ` Philippe Gerum
2007-11-14 18:45 ` Steven A. Falco
2007-11-15 22:09 ` [Xenomai-help] buildbot and state of xenomai on PPC440? Niklaus Giger
[not found] ` <473CC49D.3030504@domain.hid>
2007-11-19 19:28 ` Niklaus Giger
2007-11-22 9:55 ` Philippe Gerum
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