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Tue, 09 Apr 2024 00:29:55 -0700 (PDT) Received: from [192.168.1.20] ([178.197.223.16]) by smtp.gmail.com with ESMTPSA id n38-20020a05600c502600b004169df54d19sm2241254wmr.28.2024.04.09.00.29.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 09 Apr 2024 00:29:54 -0700 (PDT) Message-ID: <1a48979b-c9e7-459b-b224-546fe94dd86e@linaro.org> Date: Tue, 9 Apr 2024 09:29:52 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 2/4] dt-bindings: remoteproc: add Tightly Coupled Memory (TCM) bindings To: Tanmay Shah , andersson@kernel.org, mathieu.poirier@linaro.org, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, michal.simek@amd.com, ben.levinsky@amd.com Cc: linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Radhey Shyam Pandey References: <20240408205313.3552165-1-tanmay.shah@amd.com> <20240408205313.3552165-3-tanmay.shah@amd.com> Content-Language: en-US From: Krzysztof Kozlowski Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 08/04/2024 22:53, Tanmay Shah wrote: > From: Radhey Shyam Pandey > > Introduce bindings for TCM memory address space on AMD-xilinx Zynq > UltraScale+ platform. It will help in defining TCM in device-tree > and make it's access platform agnostic and data-driven. > > Tightly-coupled memories(TCMs) are low-latency memory that provides > predictable instruction execution and predictable data load/store > timing. Each Cortex-R5F processor contains two 64-bit wide 64 KB memory > banks on the ATCM and BTCM ports, for a total of 128 KB of memory. > > The TCM resources(reg, reg-names and power-domain) are documented for > each TCM in the R5 node. The reg and reg-names are made as required > properties as we don't want to hardcode TCM addresses for future > platforms and for zu+ legacy implementation will ensure that the > old dts w/o reg/reg-names works and stable ABI is maintained. > > It also extends the examples for TCM split and lockstep modes. > > Signed-off-by: Radhey Shyam Pandey > Signed-off-by: Tanmay Shah Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel