From: vb <vb@vsbe.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: TLB programming in powerpc tree. Was: Accessing peripheral bus devices on 460GT
Date: Thu, 21 Aug 2008 22:14:15 -0700 [thread overview]
Message-ID: <f608b67d0808212214p3c3e008fxa5418d108b7205f5@mail.gmail.com> (raw)
In-Reply-To: <f608b67d0808211929g3ae2cf7dm2ba2d65b0043d306@mail.gmail.com>
On Thu, Aug 21, 2008 at 7:29 PM, vb <vb@vsbe.com> wrote:
>
> But the main problem is that the kernel never sets up TLBs for neither
> the peripheral device, nor the onboard flash. I don't seem to be able
> to find the place where this is supposed to happen. I assumed that
> ioremap_nocache would take care of that, but this is not the case.
>
well, in fact the TLB is set up as soon as an attempt to access the
peripheral is made. The problem apparently is the fact that the TLB
entry uses a wrong value in the nibble specifying the internal 460GT
block...
next prev parent reply other threads:[~2008-08-22 5:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-22 2:29 TLB programming in powerpc tree. Was: Accessing peripheral bus devices on 460GT vb
2008-08-22 5:14 ` vb [this message]
2008-08-22 13:24 ` Josh Boyer
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