From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: "Moudy Ho (何宗原)" <Moudy.Ho@mediatek.com>,
"robh@kernel.org" <robh@kernel.org>,
"andersson@kernel.org" <andersson@kernel.org>,
"krzk+dt@kernel.org" <krzk+dt@kernel.org>,
"TingHan Shen (沈廷翰)" <TingHan.Shen@mediatek.com>,
"mathieu.poirier@linaro.org" <mathieu.poirier@linaro.org>,
"matthias.bgg@gmail.com" <matthias.bgg@gmail.com>,
"Nicolas Prado" <nfraprado@collabora.com>,
"Olivia Wen (温倩苓)" <Olivia.Wen@mediatek.com>,
"conor+dt@kernel.org" <conor+dt@kernel.org>
Cc: "linux-remoteproc@vger.kernel.org"
<linux-remoteproc@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-mediatek@lists.infradead.org"
<linux-mediatek@lists.infradead.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"kernel@collabora.com" <kernel@collabora.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"krzysztof.kozlowski@linaro.org" <krzysztof.kozlowski@linaro.org>
Subject: Re: [PATCH 2/4] dt-bindings: remoteproc: mediatek: Remove l1tcm for dual-core MT8188 SCP
Date: Thu, 20 Mar 2025 11:33:45 +0100 [thread overview]
Message-ID: <be4af783-3b98-439b-be3d-30d6ff520d2e@collabora.com> (raw)
In-Reply-To: <b0872ee008c3c6a2731f949d8c2be77aa49341f7.camel@mediatek.com>
Il 20/03/25 02:28, Moudy Ho (何宗原) ha scritto:
> On Wed, 2025-03-19 at 10:34 +0100, AngeloGioacchino Del Regno wrote:
>>
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>>
>>
>> Il 18/03/25 23:22, Nícolas F. R. A. Prado ha scritto:
>>> The SCP present on MT8188 does not have an L1TCM memory region, but
>>> the
>>> binding incorrectly requires one for the dual-core description of
>>> the
>>> MT8188 SCP. Remove that requirement. Also update the minimum number
>>> of
>>> reg and reg-names to 1, since as this is a multi-core SCP with no
>>> L1TCM memory, only the CFG memory region is present in the parent
>>> node.
>>>
>>> Fixes: 91e0d560b9fd ("dt-bindings: remoteproc: mediatek: Support
>>> MT8188 dual-core SCP")
>>> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
>>
>> As far as I know, the L1TCM is present on MT8188, and it's at
>> 0x1070000 len 0x8000
>> exactly like MT8195.
>>
>> Moudy, are you able to please confirm or deny that?
>>
>> Cheers,
>> Angelo
>>
>>
>
> Hi Angelo,
>
> Unfortunately, during the transition from MT8195 to MT8188, the SCP
> removed the L1TCM, retaining only the SRAM and config register.
> For detailed hardware changes, you can refer to Tinghan's previous
> description at the following link.
>
> ref:
> https://lore.kernel.org/all/20220715051821.30707-3-tinghan.shen@mediatek.com/
>
Thanks Moudy!
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
next prev parent reply other threads:[~2025-03-20 10:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-18 22:22 [PATCH 0/4] Describe MT8188's SCP as dual-core Nícolas F. R. A. Prado
2025-03-18 22:22 ` [PATCH 1/4] dt-bindings: remoteproc: mediatek: Add missing minItems for 8192/8195 Nícolas F. R. A. Prado
2025-03-19 7:16 ` Krzysztof Kozlowski
2025-03-19 14:25 ` Nícolas F. R. A. Prado
2025-04-18 8:43 ` AngeloGioacchino Del Regno
2025-03-18 22:22 ` [PATCH 2/4] dt-bindings: remoteproc: mediatek: Remove l1tcm for dual-core MT8188 SCP Nícolas F. R. A. Prado
2025-03-19 7:18 ` Krzysztof Kozlowski
2025-03-19 9:34 ` AngeloGioacchino Del Regno
2025-03-20 1:28 ` Moudy Ho (何宗原)
2025-03-20 10:33 ` AngeloGioacchino Del Regno [this message]
2025-03-18 22:22 ` [PATCH 3/4] arm64: dts: mediatek: mt8188: Describe SCP as a cluster with two cores Nícolas F. R. A. Prado
2025-03-18 22:22 ` [PATCH 4/4] arm64: dts: mediatek: mt8390-genio-common: Add firmware-name for scp0 Nícolas F. R. A. Prado
2025-03-19 9:34 ` AngeloGioacchino Del Regno
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