Linux on ARM based TI OMAP SoCs
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From: Andreas Kemnade <andreas@kemnade.info>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: "Tony Lindgren" <tony@atomide.com>,
	"Patrik Dahlström" <risca@dalakolonin.se>,
	letux-kernel@openphoenux.org, kernel@pyra-handheld.com,
	linux-omap@vger.kernel.org,
	"Péter Ujfalusi" <peter.ujfalusi@gmail.com>
Subject: Re: ABE/AESS on modern kernel: clocks, hwmods etc.
Date: Tue, 5 Sep 2023 16:44:53 +0200	[thread overview]
Message-ID: <20230905164453.3be3f33a@aktux> (raw)
In-Reply-To: <9CF135C5-85B6-47CC-985C-FE6F4B24407D@goldelico.com>

On Tue, 5 Sep 2023 14:42:03 +0200
"H. Nikolaus Schaller" <hns@goldelico.com> wrote:

> Hi Tony,
> 
> > Am 05.09.2023 um 08:12 schrieb Tony Lindgren <tony@atomide.com>:
> > 
> > The key observation is that the abe_iclk references in the DTS seem to be nowhere referenced  
> >> (which may or may not be an issue):
> >> 
> >> https://github.com/goldelico/letux-kernel/blob/letux/aess-v12/arch/arm/boot/dts/ti/omap/omap44xx-clocks.dtsi#L509
> >> https://github.com/goldelico/letux-kernel/blob/letux/aess-v12/arch/arm/boot/dts/ti/omap/omap54xx-clocks.dtsi#L161  
> > 
> > So I guess the ick is in the dts the ocp_abe_iclk@528 for omap4 and
> > abe_iclk@528 for omap5. Seems like the driver should request them, I recall
> > that the interconnect target module does not need the ick to access sysc
> > and revision registers.  
> 
> Yes, that is what I suspect but I don't know how to request them.
> 
add ,"ick" to the clock-names line in the target-module?
and ,<&ocp_abe_iclk> to the target module?

Regards,
Andreas

  reply	other threads:[~2023-09-05 15:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <53bc74ae-a2d5-40d5-8d51-bc0f062fcd15@email.android.com>
     [not found] ` <45F44D32-E846-4A53-BA20-9C78CD4411F3@goldelico.com>
     [not found]   ` <ZO4SWw/rbJH5Dpbq@dalakolonin.se>
     [not found]     ` <A029FB33-9FBB-4CE5-92D5-597E10B3A032@goldelico.com>
     [not found]       ` <ZPH5Yr3w7ruN/io0@dalakolonin.se>
     [not found]         ` <05B47ED4-CA2C-4754-ABB1-0591E9018E57@goldelico.com>
     [not found]           ` <ZPLYG16mwiwt9G9R@dalakolonin.se>
2023-09-02  7:27             ` ABE/AESS on modern kernel: clocks, hwmods etc H. Nikolaus Schaller
2023-09-02 10:26               ` Andreas Kemnade
2023-09-04  6:34                 ` Tony Lindgren
     [not found]                   ` <03375B42-C86E-4B37-98C2-C1FBA7AB68B6@goldelico.com>
2023-09-05  6:12                     ` Tony Lindgren
2023-09-05 12:42                       ` H. Nikolaus Schaller
2023-09-05 14:44                         ` Andreas Kemnade [this message]
2023-09-05 15:09                           ` H. Nikolaus Schaller
2023-09-05 15:48                             ` H. Nikolaus Schaller
2023-09-05 16:53                               ` H. Nikolaus Schaller
2023-09-06 13:50                         ` Patrik Dahlström

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