From nobody Wed Oct 1 23:46:48 2025 Received: from hall.aurel32.net (hall.aurel32.net [195.154.113.88]) (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 65BE1266B40; Fri, 26 Sep 2025 17:58:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.154.113.88 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758909531; cv=none; b=kZcytLNPbUcOctbSfkdxso9oye4lxJPHGCxMSMhcQ56ddiRiCAg77fQI05Vj54UmLY2T2cCz2e2kta7p47ahkuTO4Ub9GSWjBUr4FnKeq26JtuVhN1VE3Lrwu1DGOJv9WQuKYjnCn7FDsDuBTpsW/u3A/JcBmvZxUdyvBxdAdmM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758909531; c=relaxed/simple; bh=PPFq+HzweoH4LcPtXC4DTvoNBA+N4uZr9pfZtxjsgHA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Yl7AoQ2x4V49SzzF9XefQOAF1NSsqNGFthLHi8+ZpxJ+aK5aEtcMEQlDFJPMufWGIC7f+QFNpu9ua8KzLfbamZMvF7x9nuzoCIpMbp2tP8NEfo8+9muBruX1tmRfRbP6oXgxHeDSdZnb9awJkSc/bBJKJKFXb4r23b/DXy7X73s= 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=exgj+ReZ; arc=none smtp.client-ip=195.154.113.88 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="exgj+ReZ" 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=oDyo8ASRqeUvwZdNVn/S62Si9B3D0zSdUkWjTCEPe0w=; b=exgj+ReZmliVBE1/+p2g7P9szo OZAx1/P7FvbIw/5PUw5e7ePm4SaVSPZFWz4f4Bw0s+3wCgSKxdetHqe0D7x8LYlGEdMQUBKdTPtGV dPJ1x1PeI/R6w0/uiQh8hOT4n+REBEJYlT1XxAr+svxWu29qPhTq9RLA2WaNzfbSexTyrzjTwukOK aAvItyOU5Us8QmUrUNYvLCUFyumwQqTWdfFmrRYc/FKuFWOq3tM5OwJHU4G+qPLBTgMOQOdKURAEc zmEKw3c+gNE5HceDVRuBsSKdeJAkHjTZboZAyICjifDxBwmtZvBi2b+QR58Vy2ZlLfUF8SW/Np413 Y6z4DJZQ==; Received: from [2a01:e34:ec5d:a741:1ee1:92ff:feb4:5ec0] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1v2CiP-00GPWM-1b; Fri, 26 Sep 2025 19:58:41 +0200 From: Aurelien Jarno To: linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan Cc: Aurelien Jarno , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "open list:RISC-V ARCHITECTURE" , "open list:RISC-V SPACEMIT SoC Support" Subject: [PATCH v3 2/3] riscv: dts: spacemit: add 24c02 eeprom on BPI-F3 Date: Fri, 26 Sep 2025 19:54:38 +0200 Message-ID: <20250926175833.3048516-3-aurelien@aurel32.net> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250926175833.3048516-1-aurelien@aurel32.net> References: <20250926175833.3048516-1-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 BPI-F3 board includes a 24c02 eeprom, that stores the MAC addresses of the two network interfaces and the board's serial number. These values are also exposed 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 --- v2: no change=20 .../boot/dts/spacemit/k1-bananapi-f3.dts | 25 ++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/b= oot/dts/spacemit/k1-bananapi-f3.dts index 3b6e4f52e9aad..de10b1cb00aee 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -115,6 +115,29 @@ &i2c2 { pinctrl-0 =3D <&i2c2_0_cfg>; pinctrl-names =3D "default"; status =3D "okay"; + + eeprom@50 { + compatible =3D "atmel,24c02"; + reg =3D <0x50>; + vcc-supply =3D <&buck3_1v8>; /* EEPROM_VCC1V8 */ + pagesize =3D <16>; + read-only; + size =3D <256>; + + nvmem-layout { + compatible =3D "onie,tlv-layout"; + + mac-address { + #nvmem-cell-cells =3D <1>; + }; + + num-macs { + }; + + serial-number { + }; + }; + }; }; =20 &i2c8 { @@ -143,7 +166,7 @@ buck2 { regulator-always-on; }; =20 - buck3 { + buck3_1v8: buck3 { regulator-min-microvolt =3D <500000>; regulator-max-microvolt =3D <1800000>; regulator-ramp-delay =3D <5000>; --=20 2.47.2