From mboxrd@z Thu Jan 1 00:00:00 1970 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 45110303A1A; Tue, 23 Sep 2025 19:21:47 +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=1758655309; cv=none; b=EKosV/S/w1pDD55YSu5bZRoNgBsclIOTVUUpVxHUb227bj63fCrBq01cYHYyoNWsIwcT2IGwv9n9vd9eJC1rvcZA9poF6oiMwWcM699dv22VnqNUel7S/rLHlSjzZWRY7WcjMJ8wnc8CsoJt/UUiJt4QEUVGd5YVedKlFz+dB4A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758655309; c=relaxed/simple; bh=CLvPFcCRMiWF+MwIQskg2w7hRlClCN44/5kjnldpPPA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=WWxOPb83K6hKkzkSKJalVHK8O4qI0fxjKFK1G7DP1G2NVlpa36g6rtE9rY1jJPocsZAwDOzz8dmrLrAO0X/PoNjbpI5aDUoJ/36U+Q/ZDYTES02leL6Yy1uPXt0KTMJpAmrsGWuSwhPALR2REsv5oMPrIQJWmrclZ4GVScnKgIg= 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=zHdsdxEx; 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="zHdsdxEx" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=aurel32.net ; s=202004.hall; h=In-Reply-To:Content-Type:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Content-Transfer-Encoding:From:Reply-To: Subject:Content-ID:Content-Description:X-Debbugs-Cc; bh=a0W6UucVZcsa4tEXRuLEbZNgWX1QiAjb2QntoHbMXRc=; b=zHdsdxEx2uI1cGM05OkrzBseCO HNDD0VDiCRNkI1wUbGSRJL5+FgH1tEeR2tp/jwBH1qflQ2bBipj5MOM+OInRHAfT6EmFwg0qeSktT tb06SQQQmKOBXpWpqatQYHZqkamzrx2wu4P3zMjG8z6CYSwJckgT2HRFgXD4+dHYFwGcahoKXWMUV vFKPtCFEBsuFslYXnpxsW2RcMY8w6OA1jovT5yFOjtS+zb3CWEa5eSTQmfq1M8wZ2bvVrCLynBPGn gEy3cOMsmvq6egCE4wNDldIuib8Y79IzUUbBulXz5SmxlQ5Kv2g5oF/6R2owlr8CTQguXuDDhGBUA JREGooIw==; 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 1v18a5-00CA8A-0F; Tue, 23 Sep 2025 21:21:41 +0200 Date: Tue, 23 Sep 2025 21:21:40 +0200 From: Aurelien Jarno To: Troy Mitchell Cc: linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "open list:RISC-V ARCHITECTURE" , "open list:RISC-V SPACEMIT SoC Support" Subject: Re: [PATCH 2/3] riscv: dts: spacemit: add 24c02 eeprom on BPI-F3 Message-ID: Mail-Followup-To: Troy Mitchell , linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "open list:RISC-V ARCHITECTURE" , "open list:RISC-V SPACEMIT SoC Support" References: <20250921210237.943370-1-aurelien@aurel32.net> <20250921210237.943370-3-aurelien@aurel32.net> <6CF6078CFA2EB2F4+aNH_RmNkM_hnsAYu@LT-Guozexi> Precedence: bulk X-Mailing-List: spacemit@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6CF6078CFA2EB2F4+aNH_RmNkM_hnsAYu@LT-Guozexi> User-Agent: Mutt/2.2.13 (2024-03-09) Hi, On 2025-09-23 10:00, Troy Mitchell wrote: > On Sun, Sep 21, 2025 at 11:01:42PM +0200, Aurelien Jarno wrote: > > The BPI-F3 contains a 24c02 eeprom, that contains among other things the > > MAC addresses of the two network interfaces. For this reason, mark it as > > read-only. > > > > Signed-off-by: Aurelien Jarno > > --- > > arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 11 ++++++++++- > > 1 file changed, 10 insertions(+), 1 deletion(-) > > > > diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts > > index 3b6e4f52e9aad..574d10fdf9b82 100644 > > --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts > > +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts > > @@ -115,6 +115,15 @@ &i2c2 { > > pinctrl-0 = <&i2c2_0_cfg>; > > pinctrl-names = "default"; > > status = "okay"; > > + > > + eeprom@50 { > > + compatible = "atmel,24c02"; > > + reg = <0x50>; > > + vcc-supply = <&vcc1v8_sys>; > > + pagesize = <16>; > I'm not sure this is 16.. > Could you double check it? Yes, this matches the datasheet: https://www.giantec-semi.com/juchen1123/uploads/pdf/GT24C02_DS_Au.pdf It says "Page Size: 16 bytes" Aurelien -- Aurelien Jarno GPG: 4096R/1DDD8C9B aurelien@aurel32.net http://aurel32.net