From nobody Thu Oct 9 14:23:38 2025 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 034541C54AA; Wed, 18 Jun 2025 03:41:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750218120; cv=none; b=EW4SlzyJx3FwhAsjNNKqqacI8OC9JUOkKZ2+jYPXmKGleVRTv3+JiC0kViHZ0Dp0FFX/cAy2nPTpDY9B3Gn5C/s5PVuMBY56EgliF7RP8+UNAEf0uE7ZueI52nA0p9MfOp9httBYXOP8pmvi0IuSWcKeFWrJyTPfBQgHAEcLckc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750218120; c=relaxed/simple; bh=1BCYE7BoHY/AGtyjTUcuizpNZ3SaVpX4yNlT1wF6VAY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=d9o/cG1ze40f/FaxL0qw0CiZsMhBFX5t7RgPdwQYxylDZIzmzea+BlUfPC3PbJL+vw/6WLmi66SQ7Hs/8p4KxhkPoZ/3pq3nnkbbpolZ5t+wGqTcdHEgebG52VElu7wWHv/AoYrGlOF1vGWoogPi3ecRF3YNZN1xUIZPnYP8TG0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from [127.0.0.2] (unknown [210.73.43.2]) by APP-01 (Coremail) with SMTP id qwCowABnFtVpNVJoV95NBw--.6548S5; Wed, 18 Jun 2025 11:41:31 +0800 (CST) From: Vivian Wang Date: Wed, 18 Jun 2025 11:40:48 +0800 Subject: [PATCH net-next v2 3/6] riscv: dts: Add network-bus dma-ranges for SpacemiT K1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250618-net-k1-emac-v2-3-94f5f07227a8@iscas.ac.cn> References: <20250618-net-k1-emac-v2-0-94f5f07227a8@iscas.ac.cn> In-Reply-To: <20250618-net-k1-emac-v2-0-94f5f07227a8@iscas.ac.cn> To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Vivian Wang , Philipp Zabel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: Vivian Wang , Lukas Bulwahn , Geert Uytterhoeven , Parthiban Veerasooran , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 X-CM-TRANSID: qwCowABnFtVpNVJoV95NBw--.6548S5 X-Coremail-Antispam: 1UD129KBjvJXoW7JF1fuw17CFW3uF1rGr4kWFg_yoW8Jr1fpr ZxuFs3W3yIkr48Cr47ury7W34UGFZY9a18Gw1DC345Jrs5XrWUtrZrtw1fKF1UJrWrX34a qFs5Xry8KF1UZw7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUQ014x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWUuVWrJwAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JrWl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26F4UJVW0owA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Cr1j6rxd M2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjx v20xvE14v26r1Y6r17McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1l F7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2 IY04v7MxkF7I0En4kS14v26r4a6rW5MxkIecxEwVAFwVW8GwCF04k20xvY0x0EwIxGrwCF x2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14 v26r106r1rMI8E67AF67kF1VAFwI0_GFv_WrylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY 67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UMIIF0xvE42xK8VAvwI 8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v2 6r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjTRWtCzUUUUU X-CM-SenderInfo: pzdqw2pxlnt03j6l2u1dvotugofq/ The SpacemiT K1 has various static translations of DMA accesses. Add one of these translations, namely network-bus, as a simple-bus node with dma-ranges. Child nodes of network-bus will come in later patches. The node is named "network-bus" in consensus with SpacemiT [1]. [1]: https://lore.kernel.org/all/CAH1PCMaC+imcMZCFYtRdmH6ge=3DdPgnANn_GqVfs= GRS=3D+YhyJCw@mail.gmail.com/ Signed-off-by: Vivian Wang --- arch/riscv/boot/dts/spacemit/k1.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spa= cemit/k1.dtsi index de403bda2b878c60d9eb5b4d8d336e5c52498159..b1b87ce1ab70faa8fb61fb27bc1= 845fe40b35561 100644 --- a/arch/riscv/boot/dts/spacemit/k1.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi @@ -580,5 +580,14 @@ sec_uart1: serial@f0612000 { reg-io-width =3D <4>; status =3D "reserved"; /* for TEE usage */ }; + + network-bus { + compatible =3D "simple-bus"; + ranges; + #address-cells =3D <2>; + #size-cells =3D <2>; + dma-ranges =3D <0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>, + <0x0 0x80000000 0x1 0x00000000 0x0 0x80000000>; + }; }; }; --=20 2.49.0