From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: P J P <ppandit@redhat.com>,
Qemu Developers <qemu-devel@nongnu.org>,
qemu-arm <qemu-arm@nongnu.org>,
Prasad J Pandit <pjp@fedoraproject.org>,
Alistair Francis <alistair.francis@xilinx.com>
Subject: Re: [Qemu-devel] [Qemu-arm] [PATCH] char: cadence: correct reset value for baud rate registers
Date: Tue, 25 Oct 2016 14:47:32 +0200 [thread overview]
Message-ID: <20161025124732.GT32180@toto> (raw)
In-Reply-To: <CAFEAcA_H7OaczsgH-Tu6X10KoerJTwtr_jf2h4Jz+Wn0b+pLSw@mail.gmail.com>
On Tue, Oct 25, 2016 at 01:19:28PM +0100, Peter Maydell wrote:
> On 25 October 2016 at 07:49, P J P <ppandit@redhat.com> wrote:
> > From: Prasad J Pandit <pjp@fedoraproject.org>
> >
> > The Cadence UART device emulator stores 'baud rate generator'
> > and 'baud rate divider' values, used in computing speed, in two
> > registers. The device specification defines their range and
> > their reset value. Use their correct value when resetting the
> > device in cadence_uart_reset.
> >
> > Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
> > ---
> > hw/char/cadence_uart.c | 3 ++-
> > 1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/hw/char/cadence_uart.c b/hw/char/cadence_uart.c
> > index c176446..b8d4c28 100644
> > --- a/hw/char/cadence_uart.c
> > +++ b/hw/char/cadence_uart.c
> > @@ -471,7 +471,8 @@ static void cadence_uart_reset(DeviceState *dev)
> > s->r[R_IMR] = 0;
> > s->r[R_CISR] = 0;
> > s->r[R_RTRIG] = 0x00000020;
> > - s->r[R_BRGR] = 0x0000000F;
> > + s->r[R_BRGR] = 0x0000028B;
> > + s->r[R_BDIV] = 0x0000000F;
> > s->r[R_TTRIG] = 0x00000020;
> >
> > uart_rx_reset(s);
> > --
> > 2.7.4
>
> I'm going to wait for a review/ack from one of the Xilinx folk
> before putting this in target-arm.next.
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Best regards,
Edgar
next prev parent reply other threads:[~2016-10-25 15:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-25 6:49 [Qemu-devel] [PATCH] char: cadence: correct reset value for baud rate registers P J P
2016-10-25 12:19 ` [Qemu-devel] [Qemu-arm] " Peter Maydell
2016-10-25 12:47 ` Edgar E. Iglesias [this message]
2016-10-25 13:36 ` Peter Maydell
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