From patchwork Thu Aug 8 11:22:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keguang Zhang via B4 Relay X-Patchwork-Id: 13757272 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0103B12C7FD; Thu, 8 Aug 2024 11:22:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723116155; cv=none; b=UgIw7dCy/x3NDtWvOLMkIeQAhKjvC4ffu9ML7lNkRLzVRvf94N19Ze7BVW1nvOdXCcph0caZMXFYqa708eZIUHRCkVhuyeJpIDvwa2OKX6Ht8r/87x+7NpzaHo2IDkcKr1uf9N0t6lg0tWZFBf9XiQrCeFVHqpOMCjud4DSxIDg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723116155; c=relaxed/simple; bh=CDwKJA/uu3OGplk5NSlMNfEYskSGArcrLLejB20802Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=fNEY1tsQy9C7X+vT7hacUbjG1fleFrXzCUx/0rv0E9tYKVrcETQnfdUbfRMBs8y2lBP3FI/BKEecMixuZjJi2BBUlRf1F0M8YGphMhqoTKgO2MRE2IbXF8948n6rr9htlT2njYIYsq3asnQoQQM3qTpA0ysHF2qWwQb2921ntWY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=d6HVMPmP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="d6HVMPmP" Received: by smtp.kernel.org (Postfix) with ESMTPS id 98E8DC4AF0C; Thu, 8 Aug 2024 11:22:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723116154; bh=CDwKJA/uu3OGplk5NSlMNfEYskSGArcrLLejB20802Q=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=d6HVMPmPl5YpwTkTRg0qC2D5PrrdY8Zd9fIQlI0NcI0KNT+tBC45MXMqatnpFbTWJ 8hAaoT6bjlSrXTx2zDx4lA4PBPDn93ScaJaDR+Vtp3fQ98mOq9XA2d//PB+fUerutK dmasIPTe2qtTR5npE23F9WLkYqbZhTDh9wnES7tQdC9re4UO3UhM+zHt87mhrnTF7I gq51cYtgV/KNWFpEkXBqhA9a6FOaGXVI77AW6/Dwkn42t6w4K8NZlu9VMb1gmXb2z9 3qMldQvmvZ+L3ej8eTYOSX10cSZvz8GxwxZTzNsJ3qZYNE0OWEOhYsDUMQjUeFrfDP MVMJCP74EFSGA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 882CDC52D6F; Thu, 8 Aug 2024 11:22:34 +0000 (UTC) From: Keguang Zhang via B4 Relay Date: Thu, 08 Aug 2024 19:22:19 +0800 Subject: [PATCH v8 1/2] dt-bindings: mtd: Add Loongson-1 NAND Controller Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240808-loongson1-nand-v8-1-c96dea418b41@gmail.com> References: <20240808-loongson1-nand-v8-0-c96dea418b41@gmail.com> In-Reply-To: <20240808-loongson1-nand-v8-0-c96dea418b41@gmail.com> To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-media@vger.kernel.org, Keguang Zhang X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1723116152; l=2566; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=Vtn3xAEQPno1t8MbB7sh3XS5+5h43vqaMfiWPSo6hUU=; b=vCA1lIZ+DiRFPepmmjKvfvp2cOUqgqgCl1GQc4ljZ4dt3k26znwBASox7rClwJo+7/8hzCnZl uE+FsN5lYygC983w0LplFRWOd0Jf+CkXoCLny1CziXCfdFKd74+YvYL X-Developer-Key: i=keguang.zhang@gmail.com; a=ed25519; pk=FMKGj/JgKll/MgClpNZ3frIIogsh5e5r8CeW2mr+WLs= X-Endpoint-Received: by B4 Relay for keguang.zhang@gmail.com/20231129 with auth_id=102 X-Original-From: Keguang Zhang Reply-To: keguang.zhang@gmail.com From: Keguang Zhang Add devicetree binding document for Loongson-1 NAND Controller. Signed-off-by: Keguang Zhang --- Changes in v8: - Add a description part. - Adjust the compatible because the match data for ls1c-nfc differs from ls1b-nfc. - Mark 'nand-use-soft-ecc-engine' and 'nand-ecc-algo' as mandatory. - Delete the superfluous blank lines. Changes in v7: - rename the file to loongson,ls1b-nfc.yaml Changes in v6: - A newly added patch --- .../devicetree/bindings/mtd/loongson,ls1b-nfc.yaml | 75 ++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/loongson,ls1b-nfc.yaml b/Documentation/devicetree/bindings/mtd/loongson,ls1b-nfc.yaml new file mode 100644 index 000000000000..7ce335324a29 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/loongson,ls1b-nfc.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/loongson,ls1b-nfc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson-1 NAND Controller + +maintainers: + - Keguang Zhang + +description: | + The Loongson-1 NAND controller abstracts all supported operations, + meaning it does not support low-level access to raw NAND flash chips. + Moreover, the controller is paired with the DMA engine to perform + READ and PROGRAM functions. + +allOf: + - $ref: nand-controller.yaml + +properties: + compatible: + oneOf: + - enum: + - loongson,ls1b-nfc + - loongson,ls1c-nfc + - items: + - enum: + - loongson,ls1a-nfc + - const: loongson,ls1b-nfc + + reg: + maxItems: 1 + + dmas: + maxItems: 1 + + dma-names: + const: rxtx + +patternProperties: + "^nand@[0-3]$": + type: object + $ref: raw-nand-chip.yaml + + required: + - nand-use-soft-ecc-engine + - nand-ecc-algo + + unevaluatedProperties: false + +required: + - compatible + - reg + - dmas + - dma-names + +unevaluatedProperties: false + +examples: + - | + nand-controller@1fe78000 { + compatible = "loongson,ls1b-nfc"; + reg = <0x1fe78000 0x40>; + #address-cells = <1>; + #size-cells = <0>; + dmas = <&dma 0>; + dma-names = "rxtx"; + + nand@0 { + reg = <0>; + nand-use-soft-ecc-engine; + nand-ecc-algo = "hamming"; + }; + };