On Tue, 4 Jun 2019, Michael Schmitz wrote:
> Hi Finn,
>
> On 3/06/19 7:40 PM, Finn Thain wrote:
> >
> > > There are several other drivers that contain pieces of assembler code.
> > >
> > Does any driver contain assembler code for multiple architectures? I was
> > trying to avoid that -- though
Hi Finn,
On 3/06/19 7:40 PM, Finn Thain wrote:
There are several other drivers that contain pieces of assembler code.
Does any driver contain assembler code for multiple architectures? I was
trying to avoid that -- though admittedly I don't yet have actual code for
the PDMA implementation fo
Hi Finn,
On Mon, Jun 3, 2019 at 9:40 AM Finn Thain wrote:
> On Mon, 3 Jun 2019, Geert Uytterhoeven wrote:
> > On Mon, Jun 3, 2019 at 1:32 AM Finn Thain
> > wrote:
> > > On Sun, 2 Jun 2019, Geert Uytterhoeven wrote:
> > > > On Sun, Jun 2, 2019 at 3:29 AM Finn Thain
> > > > wrote:
> > > > > A sy
On Mon, 3 Jun 2019, Geert Uytterhoeven wrote:
> Hi Finn,
>
> On Mon, Jun 3, 2019 at 1:32 AM Finn Thain wrote:
> > On Sun, 2 Jun 2019, Geert Uytterhoeven wrote:
> > > On Sun, Jun 2, 2019 at 3:29 AM Finn Thain
> > > wrote:
> > > > A system bus error during a PDMA transfer can mess up the calculat
Hi Finn,
On Mon, Jun 3, 2019 at 1:32 AM Finn Thain wrote:
> On Sun, 2 Jun 2019, Geert Uytterhoeven wrote:
> > On Sun, Jun 2, 2019 at 3:29 AM Finn Thain
> > wrote:
> > > A system bus error during a PDMA transfer can mess up the calculation
> > > of the transfer residual (the PDMA handshaking hard
On Sun, 2 Jun 2019, Geert Uytterhoeven wrote:
> Hi Finn,
>
> On Sun, Jun 2, 2019 at 3:29 AM Finn Thain
> wrote:
> > A system bus error during a PDMA transfer can mess up the calculation
> > of the transfer residual (the PDMA handshaking hardware lacks a byte
> > counter). This results in data
Hi Finn,
On Sun, Jun 2, 2019 at 3:29 AM Finn Thain wrote:
> A system bus error during a PDMA transfer can mess up the calculation of
> the transfer residual (the PDMA handshaking hardware lacks a byte
> counter). This results in data corruption.
>
> The algorithm in this patch anticipates a bus e
A system bus error during a PDMA transfer can mess up the calculation of
the transfer residual (the PDMA handshaking hardware lacks a byte
counter). This results in data corruption.
The algorithm in this patch anticipates a bus error by starting each
transfer with a MOVE.B instruction. If a bus er
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