From: "Leiying Du" <ldu@solectek.com>
To: <linuxppc-embedded@lists.linuxppc.org>
Subject: _IO_BASE
Date: Mon, 1 Apr 2002 09:45:25 -0800 [thread overview]
Message-ID: <001101c1d9a5$012556a0$6649a8c0@LEIYINGDU> (raw)
I changed the _IO_BASE from 0x80000000 to 0xF0000000. I also set the
PBR1 of PCMCIA to 0xF0000000 and the IO space is 0x00~0x3f. When I use the
inw(x) to read or outw(x,y) to write the IO registers, it always return
"Segmentation fault". I guess my IO port address is not correct.
Should I set the MMU to make the 0xF0000000 to be the IO_PAGE? Thanks,
Leiying
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reply other threads:[~2002-04-01 17:45 UTC|newest]
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