From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (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 B4264199E9E; Mon, 17 Jun 2024 13:30:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718631016; cv=none; b=qkR48AdCcFJfsoAFH7Vw9JpepKvqAGuG6woF7mAkkxlIqwwUThI2LaQG+/cRjG0QU7YLuFztedWPgzEakHk8Ta4eNMbpuk3wjMmhCqCFDGozcJJBAejIIbIHsgkl5L3ddGXvDe+UHOI+zcUHLRh6ymen614cPWxbOe6ijeset6k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718631016; c=relaxed/simple; bh=KSb3mRso17rcUhqb1Oro4xaRLDBSd9Y8je7X+EGQxKI=; h=Date:From:To:CC:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JAalEoGnUyNnNps7/L8KRBxyy9TwV8mSoi5NTPkz3bVvkQBvGLD08Q2sSMv9OpD95NTgaGpcspiUlyYsOeYVeenyd0wsxNn8/9/tjTgBDRUPdAHyOaTZ+I/b3iAkcZNH3XA//IOY2R8Aggiw4KYnD40O6VkJM/X7X/fsyzNE0TQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=e53mt5Pg; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="e53mt5Pg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1718631014; x=1750167014; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=KSb3mRso17rcUhqb1Oro4xaRLDBSd9Y8je7X+EGQxKI=; b=e53mt5PgulIomW5ZRO2a1Kr5zgEdNHWwCLemuc+aHDPDmFLp3qQ8ppo6 hmcCNarB031kIGHXq3GELT4jZjfWKNphrqHBKUkpzq3nQmKMANGQJCoHV xn3fO4WBG7L6iwIFkEuVI36hlwnYbEOL/2n5rFKQhsvI7shSyo577r2Im URXoISN6ji9wSs856g93ptj3KaGAlPaJTUroJZipSCDFkWxXeIhnpIoHU ZOvQgNs0RQlW7tLcLFF922GtDBTZfBO43ebvcjdAxpyJSASwcVxjssTQb 3sJNHHfrYwfLUukRhh/5kPfYe6O7k5RuEbuhdTt4VOkZS/bvtg54mF+h9 w==; X-CSE-ConnectionGUID: vs/KqhXwTIKMnwb8mVJ4mg== X-CSE-MsgGUID: jnR8qmdfSTeSCRZB+zW6Sg== X-IronPort-AV: E=Sophos;i="6.08,244,1712646000"; d="asc'?scan'208";a="28519325" X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 17 Jun 2024 06:30:13 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Mon, 17 Jun 2024 06:30:06 -0700 Received: from wendy (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35 via Frontend Transport; Mon, 17 Jun 2024 06:30:04 -0700 Date: Mon, 17 Jun 2024 14:29:46 +0100 From: Conor Dooley To: Jisheng Zhang CC: Yangyu Chen , , Conor Dooley , Palmer Dabbelt , Paul Walmsley , Samuel Holland , Anup Patel , Rob Herring , Krzysztof Kozlowski , , Subject: Re: [PATCH v1 7/9] riscv: dts: add initial SpacemiT K1 SoC device tree Message-ID: <20240617-carat-poise-ee63ed6a224e@wendy> References: Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="oT9/HnCyP3m+8Cht" Content-Disposition: inline In-Reply-To: --oT9/HnCyP3m+8Cht Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 17, 2024 at 08:49:57PM +0800, Jisheng Zhang wrote: > On Mon, Jun 17, 2024 at 01:20:52AM +0800, Yangyu Chen wrote: > > Banana Pi BPI-F3 motherboard is powered by SpacemiT K1[1]. > >=20 > > Key features: > > - 4 cores per cluster, 2 clusters on chip > > - UART IP is Intel XScale UART > >=20 > > Some key considerations: > > - ISA string is inferred from vendor documentation[2] > > - Cluster topology is inferred from datasheet[1] and L2 in vendor dts[3] > > - No coherent DMA on this board > > Inferred by taking vendor ethernet and MMC drivers to the mainline > > kernel. Without dma-noncoherent in soc node, the driver fails. > > - No cache nodes now > > The parameters from vendor dts are likely to be wrong. It has 512 > > sets for a 32KiB L1 Cache. In this case, each set is 64B in size. > > When the size of the cache line is 64B, it is a directly mapped > > cache rather than a set-associative cache, the latter is commonly > > used. Thus, I didn't use the parameters from vendor dts. > >=20 > > Currently only support booting into console with only uart, other > > features will be added soon later. >=20 > Hi Yangyu, >=20 > Per recent practice of cv1800b and th1520 upstream, I think a complete > initial support would include pinctrl, clk and reset, I have received > the complains from the community. So can you please bring the pinctrl > clk and reset at the same time? What sort of complaints have you got? That the support is too minimal to be useful? --oT9/HnCyP3m+8Cht Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZnA6SgAKCRB4tDGHoIJi 0na7AP9um0KeWsttwnNSGE2JtwpFCri+BagSptLaplA4idDWBgD/a2Bs8pedwuex lnoPGQJ1Ty98RoIrkROV8cur2alHbQU= =LKni -----END PGP SIGNATURE----- --oT9/HnCyP3m+8Cht--