From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 67464C25B75 for ; Fri, 31 May 2024 21:25:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Message-ID:References:In-Reply-To:Subject:Cc:To:From :Date:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9wvFvMrQ1QgXI9hB8Z8gB0ZKpm8QijpriNW2htmUKug=; b=SDw1cSUuU9qUppO9NIaa+qzJJN AtEY2sQ6q8miHQiMmVRg8eDvr31KeqpjzUb2psKy+GPYuO+mgwWDFuVv/7NpyjzHhw/CeQKRpeFkO /1i02e7uD+Pq2OBkygzjU/YaiRGaI89neOKdRXX7kV1mc5ayfMK5jgQaEHB3w26xqg5Se/zzpVg8K dblNqDec3SM9SW8W9DA5sYY6MF3EvdQYv2+sDgACiSARpx5pwhXkf4FZrmflOQI+uFPmcQ5WiO6em F1Wt+iR7glfPRl8YLiOjpmRkuJKGMXdbRZ9hm/9TMqLW1ZOCpIzEudDuDuXR6MQ+RfetCZrAlrfdq X9yf4T/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sD9kM-0000000BUIM-1y7m; Fri, 31 May 2024 21:25:10 +0000 Received: from mail.manjaro.org ([116.203.91.91]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sD9kB-0000000BUGv-3Ev9; Fri, 31 May 2024 21:25:02 +0000 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manjaro.org; s=2021; t=1717190694; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Jww2qZI1db4LLxX4ddTJs3O/960dbOvvlMlYQYu9OhE=; b=lY00JlkhEeFaQAD6/CPV34Box50rDsxRCnJhPcrckinMIimIB2a+vL0dC2/10rznzsFNTM HpicKiI70a8tubn7YogGYe4aVV5iJY4gMVHOA1kLWpzW6RfkpjWioyrZ+pN0dMdDjbT1hi 0scxBkRlDJ7B5znOVfryeCtRcBd4CvvWJNDkZB6Rk/u34Ep/9jtkFXWGRIE07Dp5JTlJvC BpZvNk6Xwu11785eyHPD7KUmyNxwlUNKy57BXqr53H/h1f3sEhC2E+fiFQvzrg8Tm7wi9n QsgiyHgZ2FP8zCwMTuRfnEytkZJU6SVZAYW4ItOHwVAlYZdzEtayK4AV5yvuTg== Date: Fri, 31 May 2024 23:24:53 +0200 From: Dragan Simic To: Jonas Karlman Cc: Alexey Charkov , linux-rockchip@lists.infradead.org, heiko@sntech.de, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, robh+dt@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-kernel@vger.kernel.org, quentin.schulz@cherry.de, wens@kernel.org, daniel.lezcano@linaro.org, didi.debian@cknow.org, krzysztof.kozlowski+dt@linaro.org, viresh.kumar@linaro.org Subject: Re: [RFC PATCH] arm64: dts: rockchip: Make preparations for per-RK3588-variant OPPs In-Reply-To: <607f4da8-99b2-4379-9567-4bfd2744eab3@kwiboo.se> References: <673dcf47596e7bc8ba065034e339bb1bbf9cdcb0.1716948159.git.dsimic@manjaro.org> <8f8623e29a479c4108141302e708dc3b@manjaro.org> <166cc4e46f31644a50306625b2ab18a6@manjaro.org> <82db817a908b761d8c3d73ea04714314@manjaro.org> <607f4da8-99b2-4379-9567-4bfd2744eab3@kwiboo.se> Message-ID: <66677077acf4e970444cea829436fd0a@manjaro.org> X-Sender: dsimic@manjaro.org Authentication-Results: ORIGINATING; auth=pass smtp.auth=dsimic@manjaro.org smtp.mailfrom=dsimic@manjaro.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240531_142500_444612_7410DB80 X-CRM114-Status: GOOD ( 19.87 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Hello Jonas, On 2024-05-31 13:27, Jonas Karlman wrote: > On 2024-05-30 21:31, Dragan Simic wrote: > [snip] > >>>>>> That way we'll have no roadblocks if, at some point, we end up >>>>>> with >>>>>> having >>>>>> different OPPs defined for the RK3588 and the RK3588S variants. >>>>>> Or >>>>>> maybe >>>>>> even for the RK3582, which we don't know much about yet. >>>>> >>>>> Guess we'll deal with that one once we stumble upon an actual >>>>> RK3582 >>>>> board out in the wild and heading to the mainline kernel tree :) >>>> >>>> Of course, that was just an example for the future use. >>> >>> In fact, I've just discovered that Radxa has recently released Rock >>> 5C >>> Lite which is based on RK3582, and starts at just $29 for the 1GB >>> version, making it interesting for tinkering. Especially given that >>> its GPU, one of the big-core clusters and one of the VPU cores seem >>> to >>> be disabled in software (u-boot) rather than in hardware, which means >>> there is some chance that a particular SoC specimen would actually >>> have them in a working condition and possible to re-enable at no >>> cost. >>> Ordered myself one to investigate :) >> >> Yes, I also saw the RK3582-based ROCK 5C Lite a couple of days ago. :) >> It seems that the disabled IP blocks are detected as defective during >> the manufacturing, which means that they might work correctly, or >> might >> actually misbehave. It seems similar to the way old three-core AMD >> Phenom II CPUs could sometimes be made quad-core. > > I can confirm that the RK3582 include ip-state in OTP indicating > unusable cores, any unusable cpu core cannot be taken online and stalls > Linux kernel a few extra seconds during boot. Thanks for this confirmation! > Started working on a patch for U-Boot to remove any broken cpu core > and/or cluster nodes, similar to what vendor U-Boot does, adopted to > work with a mainline DT for RK3588. Nice, thanks for working on that. :) > On one of my ROCK 5C Lite board one of the cpu cores is unusable, > U-Boot > removes the related cpu cluster nodes. On another ROCK 5C Lite board > one > rkvdec core is only marked unusable and all cpu cores can be taken > online, U-Boot does nothing in this case. Guessing we should apply > similar policy as vendor U-Boot and disable cores anyway. Just checking, you're referring to disabling the rkvdec core only, for the latter case? > Following commit contains early work-in-progress and some debug output. > > https://github.com/Kwiboo/u-boot-rockchip/commit/8cdf606e616baa36751f3b4adcfaefc781126c8c > > Booting ROCK 5C Lite boards using U-Boot generic-rk3588_defconfig: > > ROCK 5C Lite v1.1 (RK3582 with 1 bad cpu core): > > cpu-code: 3582 > cpu-version: 08 10 > data: fe 21 > package: 11 > specification: 01 > ip-state: 10 00 00 > bad-state: cpu core 4 > > ROCK 5C Lite v1.1 (RK3582 with 1 bad rkvdec core): > > cpu-code: 3582 > cpu-version: 08 00 > data: fe 21 > package: 11 > specification: 01 > ip-state: 00 80 00 > bad-state: rkvdec core 1 Thanks again for these nice details! _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip