From: Drew Fustini <dfustini@baylibre.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Nishanth Menon <nm@ti.com>,
Santosh Shilimkar <ssantosh@kernel.org>,
Dave Gerlach <d-gerlach@ti.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/2] soc: ti: wkup_m3_ipc: Add support for IO Isolation
Date: Thu, 21 Apr 2022 22:10:06 -0700 [thread overview]
Message-ID: <YmI4rjkpX9krZAGn@x1> (raw)
In-Reply-To: <YmEAA7kc4jNHSkGm@atomide.com>
On Thu, Apr 21, 2022 at 09:56:03AM +0300, Tony Lindgren wrote:
> Hi,
>
> * Drew Fustini <dfustini@baylibre.com> [220414 19:24]:
> > TI AM437x SoCs support isolation of the IOs so that control is taken
> > from the peripheral they are connected to and overridden by values
> > present in the control register for that pad. This series documents a
> > new property 'ti,set-io-isolation' and updates the wkup_m3_ipc driver to
> > inform the CM3 firmware when that property is set.
>
> Care to list what hardware and board revisions you're able to test deep
> sleep with?
>
> Seems like my am437x-evm is too old for this where the board layout
> does not match the schematics for removing a resistor to enable this.
>
> Just wondering if I can still enable tests for this somehow :)
>
> Regards,
>
> Tony
Do you know what revision of the am437x-gp-evm that you have?
The AM437X_GP_EVM_3K0006_SCHEMATIC_REV1_5B schematic [1] for the
AM437x-GP-EVM shows that the EN pin on the TPS51200 is connected to SoC
ball N25 which is GPIO5_7.
Unfortunately, the only AM437x board that I have is the AM437x IDK [2]
which unfortunately does not have the TSP51200 EN pin connected to the
the SoC. In addition, the am437x-gp-evm is the only board that is
allowed to enable off mode due to am43xx_check_off_mode_enable() in
arch/arm/mach-omap2/pm33xx-core.c
Thank you,
Drew
[1] https://www.ti.com/lit/zip/tidrc79
[2] https://www.ti.com/lit/zip/sprr396
WARNING: multiple messages have this Message-ID (diff)
From: Drew Fustini <dfustini@baylibre.com>
To: Tony Lindgren <tony@atomide.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Nishanth Menon <nm@ti.com>,
Santosh Shilimkar <ssantosh@kernel.org>,
Dave Gerlach <d-gerlach@ti.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/2] soc: ti: wkup_m3_ipc: Add support for IO Isolation
Date: Thu, 21 Apr 2022 22:10:06 -0700 [thread overview]
Message-ID: <YmI4rjkpX9krZAGn@x1> (raw)
In-Reply-To: <YmEAA7kc4jNHSkGm@atomide.com>
On Thu, Apr 21, 2022 at 09:56:03AM +0300, Tony Lindgren wrote:
> Hi,
>
> * Drew Fustini <dfustini@baylibre.com> [220414 19:24]:
> > TI AM437x SoCs support isolation of the IOs so that control is taken
> > from the peripheral they are connected to and overridden by values
> > present in the control register for that pad. This series documents a
> > new property 'ti,set-io-isolation' and updates the wkup_m3_ipc driver to
> > inform the CM3 firmware when that property is set.
>
> Care to list what hardware and board revisions you're able to test deep
> sleep with?
>
> Seems like my am437x-evm is too old for this where the board layout
> does not match the schematics for removing a resistor to enable this.
>
> Just wondering if I can still enable tests for this somehow :)
>
> Regards,
>
> Tony
Do you know what revision of the am437x-gp-evm that you have?
The AM437X_GP_EVM_3K0006_SCHEMATIC_REV1_5B schematic [1] for the
AM437x-GP-EVM shows that the EN pin on the TPS51200 is connected to SoC
ball N25 which is GPIO5_7.
Unfortunately, the only AM437x board that I have is the AM437x IDK [2]
which unfortunately does not have the TSP51200 EN pin connected to the
the SoC. In addition, the am437x-gp-evm is the only board that is
allowed to enable off mode due to am43xx_check_off_mode_enable() in
arch/arm/mach-omap2/pm33xx-core.c
Thank you,
Drew
[1] https://www.ti.com/lit/zip/tidrc79
[2] https://www.ti.com/lit/zip/sprr396
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next prev parent reply other threads:[~2022-04-22 5:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-14 19:27 [PATCH v3 0/2] soc: ti: wkup_m3_ipc: Add support for IO Isolation Drew Fustini
2022-04-14 19:27 ` Drew Fustini
2022-04-14 19:27 ` [PATCH v3 1/2] dt-bindings: wkup-m3-ipc: Add ti,set-io-isolation property Drew Fustini
2022-04-14 19:27 ` [PATCH v3 1/2] dt-bindings: wkup-m3-ipc: Add ti, set-io-isolation property Drew Fustini
2022-04-14 19:44 ` [PATCH v3 1/2] dt-bindings: wkup-m3-ipc: Add ti,set-io-isolation property Drew Fustini
2022-04-14 19:44 ` [PATCH v3 1/2] dt-bindings: wkup-m3-ipc: Add ti, set-io-isolation property Drew Fustini
2022-04-19 13:04 ` [PATCH v3 1/2] dt-bindings: wkup-m3-ipc: Add ti,set-io-isolation property Rob Herring
2022-04-19 13:04 ` [PATCH v3 1/2] dt-bindings: wkup-m3-ipc: Add ti, set-io-isolation property Rob Herring
2022-04-14 19:27 ` [PATCH v3 2/2] soc: ti: wkup_m3_ipc: Add support for IO Isolation Drew Fustini
2022-04-14 19:27 ` Drew Fustini
2022-04-21 6:56 ` [PATCH v3 0/2] " Tony Lindgren
2022-04-21 6:56 ` Tony Lindgren
2022-04-22 5:10 ` Drew Fustini [this message]
2022-04-22 5:10 ` Drew Fustini
2022-04-26 6:45 ` Tony Lindgren
2022-04-26 6:45 ` Tony Lindgren
2022-05-03 13:08 ` (subset) " Nishanth Menon
2022-05-03 13:08 ` Nishanth Menon
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