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Date:      Thu, 6 Sep 2012 21:39:25 +0200
From:      Rafal Jaworowski <raj@semihalf.com>
To:        Aleksey Fedorov <aleksey.v.fedorov@gmail.com>
Cc:        freebsd-ppc@freebsd.org
Subject:   Re: FreeBSD on e500mc 36bit physical addressing
Message-ID:  <39077F2D-B518-4EE4-ACE0-E8EB804E245B@semihalf.com>
In-Reply-To: <CABCAhMFSDay5CdFYn3sJJ3H9h-hTxa7hWN-Vuc4_y6ZFFEtB=w@mail.gmail.com>
References:  <CABCAhMFSDay5CdFYn3sJJ3H9h-hTxa7hWN-Vuc4_y6ZFFEtB=w@mail.gmail.com>

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On 2012-09-04, at 18:14, Aleksey Fedorov wrote:

> Hi!
>=20
> Does FreeBSD support 36bit physical addressing?
> I have P4080 board with 4G RAM.
> Trying to boot using ubldr I hit into zero size of MR_ATTR_DRAM memory
> region in ubldr ub_get_sys_info() because u64 value in u-boot does not =
fit
> into unsigned long of mem_region.size. Temporary fix this by
> decrementing size of DRAM in u-boot.
> Now ubldr load kernel from NFS and after  "Kernel entry at
> 0x1001000..."  I have nothing.
> I suppose current kernel implementation does not support 36bit
> addressing and hang during initial configuration.

Hi Aleksey,
FreeBSD/powerpc does not support the 36-bit physical addr space for =
Book-E PowerPC as of yet.

Rafal




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