From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 425EA489881 for ; Wed, 14 Oct 2026 07:45:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791963955; cv=none; b=CVG4br6LjJTBhnCUCRUHr61ndPd3loQD0h/pL5wz6FRQ72FhMZHplLdmA0Zkz9WEgT6SvYSsgy3WLnJJHTARG6OAdYaWdVIRt4sOWjHFkGCjEaaz6Tkz/lg9s0UEqmB+VPLXgct8oUpsZfyguKc55ecJXy3z9k32NG2k8s7TETs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791963955; c=relaxed/simple; bh=FG/LJNXH1VUYYc/k/8W7Og7Fpv4MygAGBEKkCvtgcNo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=MggFpjoVpbCjeoKwjCiQ3sHL6ff6r1L0QTFbCXEsLB5lYAgmx67YsgLtLVxaJUb5UAa5eF7L/OCn6dfDEIN/7cK8ILpr3WlKxeSruJ47Tnrf4mjnrWrbsr9K9Wkm2yopRb9x3YiInuKvhbFWdEU2i/4Qwlpi1xvYFn+CBWBfG5E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=oBGd50BJ; arc=none smtp.client-ip=209.85.214.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="oBGd50BJ" Received: by mail-pl1-f172.google.com with SMTP id d9443c01a7336-2e940d5d2beso990905ad.0 for ; Wed, 14 Oct 2026 00:45:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791963949; x=1792568749; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=hCKIAVPSYo0vK8WrzKbxMMpR/7Fs8ssXef3I4R/nZQA=; b=oBGd50BJWqnpw1RWZLe2K/yPcnVFT1GAS8WukkO+VbH5oj6oqtLg0al0l1BqtuVM6O YWxtUL8OmCEMtwfhNFpSkG5I3qRc6tmuScb5YdCAtwGbjP1Jvp2fGMSMCO1WyEKQ0Hva k97qnbJUMvmlIXlx4zleGdFg5Jg84tXb78tkhdnkYpP1hHNiGevzU4+yBnw3juQlNUBP pT7atz0NOR2Ib62U+bUu91rR39mixyjDb1/Te7d0mqFn4qd3bozW9nYNt+VSb4NwLpUZ eeUeHJS8GlS5bx7vOepbRv88kVbS+D9Bc8gFcBZ6TETIxJ/6/PIecJRkDPLI932eq7Oa m9Ug== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791963949; x=1792568749; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=hCKIAVPSYo0vK8WrzKbxMMpR/7Fs8ssXef3I4R/nZQA=; b=qRQCR/aP3zuNxtHaxYg0Fjx+8KjdUA2/2blxZrWMf42+oaQswj9g319Dd46NrA8j6u WK6Cg4iuuegGIoYFBAST0SSDjQ8YhDfZpthfBfRVt0sY5Ek+XR9b+oK6FzXWC19E0+tj WzfejNyK8n7FDT+ep9ZHsbUN223nFsm5z3oKy/r5dhY+DqwkFLogiyiYT3Rm3fXy7pwi STUXRH9kz41tZT4RbrKfX08r6lnUBSZRY5QmdSlTnnt5vRlBfcPdAkSScP46ctztCXY3 oAdl/xCfQoPZCmKRiOt8MjhSyptLDdGLpZIEpvhDtrDYnTb3r95zAQ6xGOr14/FJKtc0 uq0Q== X-Gm-Message-State: AFq9FYKqUhTViaWwPXOaWBYwgm+7cZuVAiqZh/VhKIc909a/KXgZ8op4 TDIivrUEDMCbD450L3mqx1N+R4K0qdje/AbRnxHYmjhdGGWlFzZXcyw1 X-Gm-Gg: AYBFou31ERx4O/V9ed/RMJz0H8QdiB/mPPtkPaD22gXriOda08iC1rhF1v85Aq1F4T6 yfSiv+alwEjiKHUScxw97zrxOs5lyPWS+hWDEkCwDpszXHgNLNkamgccU40AnMaDmGA/eFSrzlD NCGZbw+NMlLHdLakrujz1KpOikkLi3MED+wuztmluYLg3aTNrk2WPgz8+CUpEhG4lb+zm6biKzB w+JXoO1I/Eci8B0Q9Gouq/rre8URKsYA+Xth5R0Yv1z5A7QhbIyZkHkmeCFsU1+GXDVpVwguBTs uuimcC+flBC+Cw4sQPa+uG1DJfqbOvqsyTWx3AePM+0xZpqwXhbC+2BQVq4gsns2wMm76Q3GOJS K6neGfECTGOmAxJmVdU7alFjtZvkPemHFUZCYModTpOc6dHqLMouTjSiCLy2txE24nksGlrR8UY Cn/2vk0cmH57/Y8Whq61/Gwp5W6Y1YTkEylJ80FrOEfwAbxbv/fXCeJoJabmiwakGbaC9M X-Received: by 2002:a17:902:e74d:b0:2e2:cb65:a719 with SMTP id d9443c01a7336-2e842ab6a10mr114098215ad.15.1791963949146; 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 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org 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