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Message-ID: <CA+7wUszMOvGoPSVOKP7F_KHxgJvjBGT7oJmn5EO62hGGTQK4KA@mail.gmail.com>
Date:   Thu, 24 Jan 2019 22:26:11 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Ezequiel Garcia <ezequiel@...labora.co.uk>,
        PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>,
        linux-pwm@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        linux-watchdog@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-clk@...r.kernel.org, od@...c.me
Subject: Re: [PATCH v8 00/26] Ingenic TCU patchset v8

Paul,

On Wed, Dec 12, 2018 at 11:09 PM Paul Cercueil <paul@...pouillou.net> wrote:
>
> Hi,
>
> Here's the version 8 and hopefully final version of my patchset, which
> adds support for the Timer/Counter Unit found in JZ47xx SoCs from
> Ingenic.

I can no longer boot my MIPS Creator CI20 with this series (merged
opendingux/for-upstream-timer-v8).

Using screen+ttyUSB, I can see messages stopping at:

...
[  OK  ] Started Cgroup management daemon.
         Starting Regular background program processing daemon...
[  OK  ] Started Regular background program processing daemon.
         Starting System Logging Service...
         Starting Provide limited super user privileges to specific users...
         Starting Restore /etc/resolv.conf if the system cras...s shut down....
         Starting WPA supplicant...
         Starting D-Bus System Message Bus...
[  OK  ] Started D-Bus System Message Bus.

Nothing really stands out in the error messages. Could you suggest
things to try out to get into a bootable state ?


> The big change is that the timer driver has been simplified. The code to
> dynamically update the system timer or clocksource to a new channel has
> been removed. Now, the system timer and clocksource are provided as
> children nodes in the devicetree, and the TCU channel to use for these
> is deduced from their respective memory resource. The PWM driver will
> also deduce from its memory resources whether a given PWM channel can be
> used, or is reserved for the system timers.
>
> Kind regards,
> - Paul Cercueil
>

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