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From: Mark Brown <broonie@sirena.org.uk>
To: linuxppc-embedded@ozlabs.org
Subject: Platform devices on MPC8245
Date: Wed, 31 Aug 2005 13:26:00 +0100	[thread overview]
Message-ID: <20050831122556.GA474@projectcolo.org.uk> (raw)

I'm having some trouble using the platform device support for the
MPC8245 using memory map B, set up using mpc10x_bridge_init().  When
that function registers the host bridge it registers addresses
0x80000000-0xfebfffff for the bridge but by default (with EUMB mapped to
MPC10X_MAPB_EUMB_BASE) the platform devices on the chip are also within
this address range.  The problem I'm seeing is that when
platform_device_register() comes to call request_resource() on the
devices that call fails because the addresses have already been
allocated to the PCI host bridge.

I'm sure I must be missing something really obvious about how this is
supposed to work but I can't for the life of me see what.  Changing the
platform code to use insert_resource() rather than request_resource()
allows the devices to register and be used but that seems rather too
drastic to be it.

Thanks for any help.

-- 
"You grabbed my hand and we fell into it, like a daydream - or a fever."

             reply	other threads:[~2005-08-31 12:47 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-31 12:26 Mark Brown [this message]
2005-09-07 16:34 ` Platform devices on MPC8245 Mark Brown
2005-09-07 16:42   ` Vitaly Bordug
2005-09-07 16:58     ` Mark Brown

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