linux-kernel - Re: [PATCH v4 7/9] clocksource: realtek: Add timer driver for rtl-otto platforms

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Message-ID: <6b4d33cd-35b5-4f34-8ef5-14fb34b2ceaf@alliedtelesis.co.nz>
Date: Tue, 9 Jul 2024 09:30:27 +1200
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: Daniel Lezcano <daniel.lezcano@...aro.org>, tglx@...utronix.de,
 robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 tsbogend@...ha.franken.de, paulburton@...nel.org, peterz@...radead.org,
 mail@...ger-koblitz.de, bert@...t.com, john@...ozen.org, sander@...nheule.net
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-mips@...r.kernel.org, kabel@...nel.org, ericwouds@...il.com,
 Markus Stockhausen <markus.stockhausen@....de>
Subject: Re: [PATCH v4 7/9] clocksource: realtek: Add timer driver for
 rtl-otto platforms

Hi Daniel,

On 8/07/24 21:53, Daniel Lezcano wrote:
> On 05/07/2024 04:15, Chris Packham wrote:
>> The timer/counter block on the Realtek SoCs provides up to 5 timers. It
>> also includes a watchdog timer which is handled by the
>> realtek_otto_wdt.c driver.
>>
>> One timer will be used per CPU as a local clock event generator. An
>> additional timer will be used as an overal stable clocksource.
>
> Does the mips arch have a local timer per cpu timer and a broadcast 
> timer already integrated in the GIC ?

I'm far from an expert but as best I can tell no. This SoC doesn't use 
the mti,gic it uses realtek,rtl-intc instead.