lkml.org 
[lkml]   [2014]   [Feb]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC 10/16] drm/nouveau/timer: skip calibration on GK20A
On 02/04/2014 01:39 AM, Alexandre Courbot wrote:
> On 02/04/2014 12:55 PM, Ben Skeggs wrote:
>> On Sat, Feb 1, 2014 at 1:16 PM, Alexandre Courbot
>> <acourbot@nvidia.com> wrote:
>>> GK20A's timer is directly attached to the system timer and cannot be
>>> calibrated. Skip the calibration phase on that chip since the
>>> corresponding registers do not exist.
>> Just a curiosity: What timer resolution does the HW initialise at?
>
> On T124 the timer input is the oscillator clock, which depending on the
> device can run between 12 and 48Mhz (IIUC).

On the one Tegra124 board we support upstream, the crystal is 12MHz. I
believe this is a typical/common value; almost all the Tegra boards we
support upstream run at this rate.


\
 
 \ /
  Last update: 2014-02-06 00:41    [W:0.084 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site