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Wed, 14 Oct 2026 00:45:48 -0700 (PDT) From: Inochi Amaoto To: Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH 0/3] Add SG2044 eFUSE driver Date: Wed, 14 Oct 2026 15:45:12 +0800 Message-ID: <20261014074516.240247-1-inochiama@gmail.com> X-Mailer: git-send-email 2.56.0 Precedence: bulk X-Mailing-List: sophgo@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add SG2044 eFUSE driver, The eFUSE contains factory-programmed data, and it will be auto loaded into shadow registers while startup. So only MMIO read is needed. Inochi Amaoto (3): dt-bindings: nvmem: Add SG2044 eFuse controller nvmem: Add Sophgo SG2044 eFuse driver riscv: dts: sophgo: sg2044: Add eFUSE device .../bindings/nvmem/sophgo,efuse.yaml | 61 ++++++ .../boot/dts/sophgo/sg2044-sophgo-srd3-10.dts | 4 + arch/riscv/boot/dts/sophgo/sg2044.dtsi | 12 ++ drivers/nvmem/Kconfig | 12 ++ drivers/nvmem/Makefile | 2 + drivers/nvmem/sophgo-efuse.c | 177 ++++++++++++++++++ 6 files changed, 268 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/sophgo,efuse.yaml create mode 100644 drivers/nvmem/sophgo-efuse.c -- 2.56.0 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9FFDCCC6B1A for ; Wed, 14 Oct 2026 07:46:15 +0000 (UTC) DKIM-Signature: v=1; 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Wed, 14 Oct 2026 00:45:49 -0700 (PDT) Received: from localhost ([2001:19f0:8000:3e6e:5400:6ff:fe38:3d01]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2e8421b1347sm67038615ad.44.2026.10.14.00.45.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2026 00:45:48 -0700 (PDT) From: Inochi Amaoto To: Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH 0/3] Add SG2044 eFUSE driver Date: Wed, 14 Oct 2026 15:45:12 +0800 Message-ID: <20261014074516.240247-1-inochiama@gmail.com> X-Mailer: git-send-email 2.56.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261014_004553_399597_6F663BDC X-CRM114-Status: UNSURE ( 7.60 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add SG2044 eFUSE driver, The eFUSE contains factory-programmed data, and it will be auto loaded into shadow registers while startup. So only MMIO read is needed. Inochi Amaoto (3): dt-bindings: nvmem: Add SG2044 eFuse controller nvmem: Add Sophgo SG2044 eFuse driver riscv: dts: sophgo: sg2044: Add eFUSE device .../bindings/nvmem/sophgo,efuse.yaml | 61 ++++++ .../boot/dts/sophgo/sg2044-sophgo-srd3-10.dts | 4 + arch/riscv/boot/dts/sophgo/sg2044.dtsi | 12 ++ drivers/nvmem/Kconfig | 12 ++ drivers/nvmem/Makefile | 2 + drivers/nvmem/sophgo-efuse.c | 177 ++++++++++++++++++ 6 files changed, 268 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/sophgo,efuse.yaml create mode 100644 drivers/nvmem/sophgo-efuse.c -- 2.56.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv