From nobody Fri Apr 3 23:43:48 2026 Received: from hall.aurel32.net (hall.aurel32.net [195.154.119.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84C6A34DCD9; Sun, 22 Mar 2026 20:34:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.154.119.183 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774211653; cv=none; b=bVHg/Qt41z+UJPsa1zGsefzhsR1vGoKU7AoOpggd0vI9n4Q+yd6YUIGWBySD8sxm73OxdD9Bdcs50JAJxW66D6sf0rjkylIs1lVQeDi5OxsAs9v3Y8VWtmW4kA7w08ybOHym8RKMNkrNvG9/t7JT83kwx6N642NnTgmyYwn8d/c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774211653; c=relaxed/simple; bh=mwoHXnM/pxo6GxOzjIDCCqIQKAwDWHtO0cQX9CuQc3A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=du6eNPPhzOfLTK3FtS04NfEtfD84UrAr47ZMw7HhGCQLe5KClgFve90KxLtrUb0hOmURqXcuV+u9jhWNNg+2NAGj6bkhw5gG7dnuAvvsqzQ5W67IThPkag5G1OtRgLpcBv+hOGnK7aH2TcpmNtYnBaDMotwHEgZxqj18cwRumms= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=aurel32.net; spf=pass smtp.mailfrom=aurel32.net; dkim=pass (2048-bit key) header.d=aurel32.net header.i=@aurel32.net header.b=t+BQsLVQ; arc=none smtp.client-ip=195.154.119.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=aurel32.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aurel32.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=aurel32.net header.i=@aurel32.net header.b="t+BQsLVQ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=aurel32.net ; s=202004.hall; h=Content-Transfer-Encoding:MIME-Version:References: In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Content-Type:From:Reply-To: Subject:Content-ID:Content-Description:X-Debbugs-Cc; bh=ydfM6LMwzB3xWLIuz6b1o5GNPNVH4RVJhYsd3HhRMIU=; b=t+BQsLVQib7a7op1itwU9Lr3xi wg6/lswBoDU4ArirScsnxuJH5EzHipPLTpEauZgZVERQATQ+MLX04VPF2w5bAURaJ3nAuph71081/ jS163ZHOvd8y3Y3GbanP9wVjFpvth9lRV7GYbQE7/EiwS1qQKdHXODvqAmv/9G49UC+9sH/uzCpGr Py4G1JQ18cBEHecNK5FPf3CLBypakawyeEYOIB6H8tHGNrnkVzgee37M8AfaTLVEbKNgmHE22ONRx uBApRCuXS1fcWFrGUvzqaLz4yaJluA30OLG7jr8oCA+bKD2vPcNIjFYWpZoY1DeWAEvf8/Dlfy0rH K/E52dOA==; Received: from authenticated user by hall.aurel32.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w4PUw-0000000AseM-3KP2; Sun, 22 Mar 2026 21:34:10 +0100 From: Aurelien Jarno To: linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: Aurelien Jarno , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE), spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support) Subject: [PATCH 2/6] riscv: dts: spacemit: add 24c04 eeprom on Milk-V Jupiter Date: Sun, 22 Mar 2026 21:28:33 +0100 Message-ID: <20260322203356.2206927-3-aurelien@aurel32.net> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260322203356.2206927-1-aurelien@aurel32.net> References: <20260322203356.2206927-1-aurelien@aurel32.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The Milk-V Jupiter board includes a 24c04 eeprom on the i2c2 bus. The eeprom contains an ONIE TLV table, which on the board I tested only provides a product-name entry. Expose it via an onie,tlv-layout nvmem layout. The eeprom is marked as read-only since its contents are not supposed to be modified. Signed-off-by: Aurelien Jarno Reviewed-by: Javier Martinez Canillas --- .../boot/dts/spacemit/k1-milkv-jupiter.dts | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv= /boot/dts/spacemit/k1-milkv-jupiter.dts index 3cd83c5924e4f..bd48208a370cf 100644 --- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts +++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts @@ -108,6 +108,28 @@ &pdma { status =3D "okay"; }; =20 +&i2c2 { + pinctrl-0 =3D <&i2c2_0_cfg>; + pinctrl-names =3D "default"; + status =3D "okay"; + + eeprom@50 { + compatible =3D "atmel,24c04"; + reg =3D <0x50>; + vcc-supply =3D <&buck3_1v8>; /* EEPROM_VCC18 */ + pagesize =3D <16>; + read-only; + size =3D <512>; + + nvmem-layout { + compatible =3D "onie,tlv-layout"; + + product-name { + }; + }; + }; +}; + &i2c8 { pinctrl-0 =3D <&i2c8_cfg>; pinctrl-names =3D "default"; --=20 2.51.0