From patchwork Sat Apr 12 13:16:03 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Patchwork-Id: 14049009 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 96410C369B9 for ; Sat, 12 Apr 2025 13:16:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 10A0D10E202; Sat, 12 Apr 2025 13:16:23 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="HsP02/6U"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4B5A610E273 for ; Sat, 12 Apr 2025 13:16:22 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 09E0C61139; Sat, 12 Apr 2025 13:16:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 8B9D0C4CEEA; Sat, 12 Apr 2025 13:16:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744463775; bh=2+kp4MaC3RSy6/sDx1Q1zXdxCSyUK7FwxewK8RiuKJ8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=HsP02/6U43ovEE7YZNpxd4S+Iy46KowSxjzf7/qJ0F4D5yVmeKMczPSdyop7JXl9F qRDKgKOcPITEFKlM7F2MfdQb8zFTKfrxdGiz9C7Q/Myr48WEEupx+btJ9ENJ5TU/as 2zzkpJPbKLyZCMM7P93ExrfOS/aeQbd3Pak0F7ratZzD7PgtmOBNLal7UdyZW0clTP nIOiUjeQfstjUErvf+90aHzbZzCnYiVEpB1tWWDPcbL9rhTB1B0lPUNZB1A1m8raLr A3nNgdG62FwKhsocyG/rgkJSSgwaCYjwm8PUzETwwIVySblu9+QbW3mvC3m2osEXpL CbnnoleMGyJ5A== 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 7A5FFC369B4; Sat, 12 Apr 2025 13:16:15 +0000 (UTC) Date: Sat, 12 Apr 2025 15:16:03 +0200 Subject: [PATCH v5 2/4] dt-bindings: memory-controllers: Add fsl,elbc-gpcm-uio MIME-Version: 1.0 Message-Id: <20250412-ppcyaml-elbc-v5-2-03f0e577139f@posteo.net> References: <20250412-ppcyaml-elbc-v5-0-03f0e577139f@posteo.net> In-Reply-To: <20250412-ppcyaml-elbc-v5-0-03f0e577139f@posteo.net> To: Krzysztof Kozlowski , Rob Herring , Conor Dooley , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Krzysztof Kozlowski , Crystal Wood , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann Cc: Frank Li , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, dri-devel@lists.freedesktop.org, =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1744463772; l=2469; i=j.ne@posteo.net; s=20240329; h=from:subject:message-id; bh=htcrsqluVVMG19ijErGFIGHr6stqwWEXgWB5pMjKcH4=; b=L7V2ump9A5d9jp4bWUt0KbTAXdOHZ10gydSw7SETGRq77kppg00wUwSeExwU1SUgNZDq+dMcb wjIA+Lkd0xSCUgxamvxe+xKf7QJR2M2+MX6KEnMZnE4ylQIuY1dKOJv X-Developer-Key: i=j.ne@posteo.net; a=ed25519; pk=NIe0bK42wNaX/C4bi6ezm7NJK0IQE+8MKBm7igFMIS4= X-Endpoint-Received: by B4 Relay for j.ne@posteo.net/20240329 with auth_id=156 X-Original-From: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: j.ne@posteo.net Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: =?utf-8?q?J=2E_Neusch=C3=A4fer?= From: "J. Neuschäfer" Formalize the binding already supported by the uio_fsl_elbc_gpcm.c driver. Reviewed-by: Frank Li Reviewed-by: Rob Herring (Arm) Signed-off-by: J. Neuschäfer --- V4,V5: - no changes V3: - add review tags V2: - split out from fsl,elbc patch - add description - remove "device_type" property - move to bindings/memory-controllers --- .../memory-controllers/fsl,elbc-gpcm-uio.yaml | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl,elbc-gpcm-uio.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl,elbc-gpcm-uio.yaml new file mode 100644 index 0000000000000000000000000000000000000000..381584b400a0ad98c6d9e0b38f2877d44603ed84 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/fsl,elbc-gpcm-uio.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/fsl,elbc-gpcm-uio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Userspace I/O interface for Freescale eLBC devices + +description: + The Freescale Enhanced Local Bus controller (eLBC) supports flexible access + to memory devices, through the General-Purpose Chip-select Machine (GPCM). + The purpose of this binding is to designate devices attached to eLBC/GPMC for + use by userspace. + +maintainers: + - J. Neuschäfer + +properties: + compatible: + const: fsl,elbc-gpcm-uio + + reg: + maxItems: 1 + + elbc-gpcm-br: + description: Base Register (BR) value to set + $ref: /schemas/types.yaml#/definitions/uint32 + + elbc-gpcm-or: + description: Option Register (OR) value to set + $ref: /schemas/types.yaml#/definitions/uint32 + + interrupts: + maxItems: 1 + + uio_name: + $ref: /schemas/types.yaml#/definitions/string + +required: + - compatible + - reg + - elbc-gpcm-br + - elbc-gpcm-or + +additionalProperties: false + +examples: + - | + localbus { + #address-cells = <2>; + #size-cells = <1>; + + simple-periph@2,0 { + compatible = "fsl,elbc-gpcm-uio"; + reg = <0x2 0x0 0x10000>; + elbc-gpcm-br = <0xfd810800>; + elbc-gpcm-or = <0xffff09f7>; + }; + };