From: Rolf Evers-Fischer <embedded24@evers-fischer.de>
To: barebox@lists.infradead.org
Subject: New driver crashes with "unable to handle paging request"
Date: Wed, 23 Apr 2014 18:09:40 +0200 (CEST) [thread overview]
Message-ID: <1566538733.276756.1398269380974.open-xchange@email.1und1.de> (raw)
I'm just trying to port the USB driver "musb" (for the AM335x platform) from
linux kernel to barebox.
But whenever I want to read any address in the range 0x47401400-0x474017ff, the
barebox crashes with "unable to handle paging request".
I have already tried to invoke a "map_io_sections(0x0, 0x47400000, 0x2000)", but
it didn't help.
Fortunately I can test it on the barebox command line with the command
md -w 0x4740146c-0x4740146d
In the linux kernel they are calling the "ioremap()" function for this memory
range, but I didn't find an equivalent function in the barebox source.
Do you have any idea, how to avoid the "paging request" failure here?
Best regards,
Rolf
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next reply other threads:[~2014-04-23 16:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-23 16:09 Rolf Evers-Fischer [this message]
2014-04-24 6:58 ` Sascha Hauer
2014-04-24 8:52 ` Rolf Evers-Fischer
2014-04-30 14:08 ` Rolf Evers-Fischer
2014-05-01 22:50 ` Christoph Fritz
2014-05-05 12:13 ` Rolf Evers-Fischer
2014-05-12 12:57 ` Rolf Evers-Fischer
2014-05-13 11:03 ` Alexander Aring
2014-05-13 12:49 ` Christoph Fritz
2014-05-15 11:37 ` Rolf Evers-Fischer
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