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Fri, 02 Oct 2026 18:27:19 -0700 (PDT) Received: from localhost ([201.89.183.74]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-151fa74fa1csm1218093c88.1.2026.10.02.18.27.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Oct 2026 18:27:18 -0700 (PDT) From: Otavio Salvador To: Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Maxime Ripard , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Otavio Salvador Subject: [PATCH 1/2] dt-bindings: nvmem: SID: Add binding for R40 SID controller Date: Fri, 2 Oct 2026 22:25:35 -0300 Message-ID: <20261003012534.418820-4-otavio@ossystems.com.br> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20261003012534.418820-3-otavio@ossystems.com.br> References: <20261003012534.418820-3-otavio@ossystems.com.br> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261002_182720_687349_8C60982E X-CRM114-Status: GOOD ( 11.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Allwinner R40 SID exposes its 2Kbit eFuse at offset 0x200 of the controller, readable directly from MMIO like on the A64. Add the R40 compatible with the A64 one as fallback, as done for the A100, H616 and A523. On an A40i, all 64 eFuse words read through the MMIO window match the words read through the SID_PRCTL/SID_RDKEY registers, so the R40 does not need the register-based readout of the H3. Signed-off-by: Otavio Salvador --- .../devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml b/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml index f67470b8a2ed2..a4960b0ef8cbe 100644 --- a/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml +++ b/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml @@ -25,6 +25,7 @@ properties: - const: allwinner,sun50i-a64-sid - items: - enum: + - allwinner,sun8i-r40-sid - allwinner,sun50i-a100-sid - allwinner,sun50i-h616-sid - allwinner,sun55i-a523-sid -- 2.55.0