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[2620:137:e000::1:20]) by mx.google.com with ESMTP id h25-20020a170906111900b00997e1a4b954si2370674eja.25.2023.07.28.03.23.28; Fri, 28 Jul 2023 03:23:53 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@sifive.com header.s=google header.b=GWE2v5GO; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=sifive.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233376AbjG1JEi (ORCPT + 99 others); Fri, 28 Jul 2023 05:04:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233673AbjG1JEh (ORCPT ); Fri, 28 Jul 2023 05:04:37 -0400 Received: from mail-lj1-x22f.google.com (mail-lj1-x22f.google.com [IPv6:2a00:1450:4864:20::22f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D8E91B6 for ; Fri, 28 Jul 2023 02:04:35 -0700 (PDT) Received: by mail-lj1-x22f.google.com with SMTP id 38308e7fff4ca-2b9b904bb04so28639501fa.1 for ; Fri, 28 Jul 2023 02:04:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1690535074; x=1691139874; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=QoUjJ9zL9e663eyjUh3+yZMV+gsB92P640Sm3159mYQ=; b=GWE2v5GO0nR84rzpqfnEgejBzGhN8kmeIhUex9shslMfLPk8x4dv8QTreZX6Xth0FC SJeQBMwslj3Hg8jppS7yNQ41Jg+5J0l6/aJ5iPM0raqiZN+GpksIu2nXTlyYkCXNNw4S VPHZWoR4IgMDrMmwkp3ms++fNSTf/MykV8Ugh41L+duzNuhm2XvaRObJa9FOZgr7uI6y amAEVguzKhWS8ui7CoNHnTNhIjJFZohoStgGhN7io2g3TVUDTHvkeyYhINgDBQYrEDZe mW0R3+Yg0QnEfTlQbNFhmxx90NlZjF7MX3YyJypumLONO3cERP2TLnj3r0TibU9nN/um MpqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690535074; x=1691139874; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QoUjJ9zL9e663eyjUh3+yZMV+gsB92P640Sm3159mYQ=; b=aas3z2QTJdhMqjUk7KVhG+OCqVMmTI++doUGshBZe0aZpDZbxG6CdCSr9S6jhm/giI T4a6h5sfhmz/jHM9Hes7n3A6FgqvMvyg71SNQsT9iCMYiVh1hwBTUex3TZPVntArc+be RegQ3Ck0cJHt8noocGPZUWHR+8JNZOjjKTOSggo699dP2NXgmsrJL+CuGpokTZ9r38mD vpi/Mg2RK8DjKz19EzaGuE9d2RWT1+nFXv+f8uwtI4qM24Xo1VXSkhIPZ1lOefD70HOB 3mtgjM3feOu7+1jmrA8LcTtK4vJ60GUBThyFmPEgBP7UyO+DKaFM5FpzlXlG6R+CHkNN 3s6w== X-Gm-Message-State: ABy/qLZXzot1dvTns7slcIJxCbOaPkKYxTSAnBs3YgHeiar53Ne4pamu FeuE2T1Hg3E+C+NWt5m7v2CSKfYYSYHbW2zERVDvfA== X-Received: by 2002:a2e:97d7:0:b0:2b6:fa60:85a1 with SMTP id m23-20020a2e97d7000000b002b6fa6085a1mr1301429ljj.21.1690535074159; Fri, 28 Jul 2023 02:04:34 -0700 (PDT) MIME-Version: 1.0 References: <20230720135125.21240-1-eric.lin@sifive.com> <20230720135125.21240-2-eric.lin@sifive.com> In-Reply-To: From: Eric Lin Date: Fri, 28 Jul 2023 17:04:23 +0800 Message-ID: Subject: Re: [PATCH v2 1/3] dt-bindings: riscv: sifive: Add SiFive Private L2 cache controller To: Krzysztof Kozlowski Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, zong.li@sifive.com, greentime.hu@sifive.com, vincent.chen@sifive.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 28, 2023 at 2:58=E2=80=AFPM Krzysztof Kozlowski wrote: > > On 28/07/2023 08:01, Eric Lin wrote: > > Hi Krzysztof, > > > > On Fri, Jul 21, 2023 at 4:35=E2=80=AFPM Krzysztof Kozlowski > > wrote: > >> > >> On 20/07/2023 15:51, Eric Lin wrote: > >>> This add YAML DT binding documentation for SiFive Private L2 > >>> cache controller > >>> > >>> Signed-off-by: Eric Lin > >>> Reviewed-by: Zong Li > >>> Reviewed-by: Nick Hu > >> > >> > >> ... > >> > >>> +properties: > >>> + compatible: > >>> + items: > >>> + - const: sifive,pl2cache1 > >> > >> I still have doubts that it is not used in any SoC. This is what you > >> said last time: "is not part of any SoC." > >> If not part of any SoC, then where is it? Why are you adding it to the > >> kernel? > >> > > > > Sorry for the late reply. I didn't describe it clearly last time. > > Currently, we have two hardware versions of pl2cache: pl2cache0 and pl2= cache1. > > The pl2cache0 is used in unmatched board SoC. The pl2cache1 is > > utilized in our internal FPGA platform for evaluation; it's our core > > IP. > > And why do you add bindings for some internal FPGA IP block which does > not interface with any SW? > Hi Krzysztof, The pl2cache has mmio interface for SW. Thanks. Best regards, Eric Lin > Best regards, > Krzysztof >