Linux ARM-MSM sub-architecture
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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
	Abel Vesa <abel.vesa@oss.qualcomm.com>,
	Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Subject: Re: [PATCH 2/3] arm64: dts: qcom: Introduce Eliza Soc base dtsi
Date: Fri, 6 Mar 2026 10:02:05 +0100	[thread overview]
Message-ID: <1e58955c-3e79-4503-8670-85e689bf8acb@kernel.org> (raw)
In-Reply-To: <521fcb9d-6538-430a-910e-0e4e9df2c693@oss.qualcomm.com>

On 24/02/2026 14:06, Konrad Dybcio wrote:
> On 2/24/26 1:13 PM, Abel Vesa wrote:
>> Introduce the initial support for the Qualcomm Eliza SoC.
>> It is a high-tier SoC designed for mobile platforms.
>>
>> The initial submission enables support for:
>> - CPU nodes with cpufreq and cpuidle support
>> - Global Clock Controller (GCC)
>> - Resource State Coordinator (RSC) with clock controller & genpd provider
>> - Interrupt controller
>> - Power Domain Controller (PDC)
>> - Vendor specific SMMU
>> - SPMI bus arbiter
>> - Top Control and Status Register (TCSR)
>> - Top Level Mode Multiplexer (TLMM)
>> - Debug UART
>> - Reserved memory nodes
>> - Interconnect providers
>> - System timer
>> - UFS
>>
>> Co-developed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
>> Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
>> ---
> 
> [...]
> 
>> +		cpu-map {
>> +			cluster0 {
>> +				core0 {
>> +					cpu = <&cpu0>;
> 
> The values of the MPIDR register (also present in 'reg' of CPU nodes)
> suggest all these CPUs form a single logical cluster

For reference:

Data presented by firmware lies and different, e.g. fixed, firmware will
give you different results. All resources I found (several of them -
multiple docs, Block diagram from datasheet) say these are separate
clusters, so this is the topology we should be using currently.

Best regards,
Krzysztof

  parent reply	other threads:[~2026-03-06  9:02 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-24 12:13 [PATCH 0/3] arm64: dts: qcom: Add base support for Eliza SoC and its MTP board Abel Vesa
2026-02-24 12:13 ` [PATCH 1/3] dt-bindings: arm: qcom: Document Eliza " Abel Vesa
2026-02-25 10:55   ` Krzysztof Kozlowski
2026-02-24 12:13 ` [PATCH 2/3] arm64: dts: qcom: Introduce Eliza Soc base dtsi Abel Vesa
2026-02-24 13:06   ` Konrad Dybcio
2026-02-24 13:11     ` Krzysztof Kozlowski
2026-03-06  9:02     ` Krzysztof Kozlowski [this message]
2026-03-10 13:36       ` Konrad Dybcio
2026-03-12 12:19     ` Abel Vesa
2026-02-24 15:23   ` Dmitry Baryshkov
2026-02-24 12:13 ` [PATCH 3/3] arm64: dts: qcom: eliza: Enable Eliza MTP board support Abel Vesa
2026-02-24 13:09   ` Konrad Dybcio
2026-03-12 12:22     ` Abel Vesa

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