From patchwork Fri Feb 17 16:40:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 654505 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74653C6379F for ; Fri, 17 Feb 2023 16:40:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230301AbjBQQkw (ORCPT ); Fri, 17 Feb 2023 11:40:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230235AbjBQQkt (ORCPT ); Fri, 17 Feb 2023 11:40:49 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CAAA6FF1E; Fri, 17 Feb 2023 08:40:48 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B150561EE5; Fri, 17 Feb 2023 16:40:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 906D2C433A0; Fri, 17 Feb 2023 16:40:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1676652047; bh=8Pkfc5Vtr1bS1mfUGRyytTI2Goy5iCLpHwo24Vj3Z4Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iZopDMN/t/u+V8+JAFkyK6Easm2YKxMfzovzbDhLKTTW2uoA5pibaW9nNphyrlgPz dJ0fJ20e9NpMGoo7A4gTbsCDA9XlNt//MDfR/QQfs6TqzccOPsfWC2JWhmEVadY5lY /8eW3K6sYTTm32hR2LP0uqhZybx1CHfx5zvrwehpKfHTaP+q5vPqwQsmsVcGGLm67g tT5D1SgNpCHUnyRhYhh6dh6dChwNcNqFZ9DvBV6EwVxLwb6dQFiWVlW7ghGkIJmFaz Ipj1QHKjMN5wzFrTSDrcI2hhrUOt7IQGf23kVgVHcrOZSlrS8UOzauNiq+iEkmVlez 4qJe7N94WqvOA== From: Conor Dooley To: Xu Yilun , conor@kernel.org Cc: Conor Dooley , Daire McNamara , Rob Herring , Krzysztof Kozlowski , Moritz Fischer , Wu Hao , Tom Rix , linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fpga@vger.kernel.org Subject: [PATCH v1 2/6] dt-bindings: soc: microchip: add a property for system controller flash Date: Fri, 17 Feb 2023 16:40:19 +0000 Message-Id: <20230217164023.14255-3-conor@kernel.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230217164023.14255-1-conor@kernel.org> References: <20230217164023.14255-1-conor@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1632; i=conor.dooley@microchip.com; h=from:subject; bh=fTElDZa5UroElstrQ0dzqW+hmPb678nX3XRMkYJvFsI=; b=owGbwMvMwCFWscWwfUFT0iXG02pJDMnv17498Deyouk5h1zP2z+h8+6vbr/qvOLkvAp5xQ4Lz/CX 0mcXd5SyMIhxMMiKKbIk3u5rkVr/x2WHc89bmDmsTCBDGLg4BWAix88yMpz/c+1uxwu1xe8XzvD6o7 9m46nA+kczWkVF1IVXJM3dNi+e4Z/NJD0Wl4fxFZF8+c4Ta/pbGO9NWxbErHfykcLz/RFq6lwA X-Developer-Key: i=conor.dooley@microchip.com; a=openpgp; fpr=F9ECA03CF54F12CD01F1655722E2C55B37CF380C Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Conor Dooley The system controller "shares" a SPI flash device with a QSPI controller in the MSS. This flash is used to store FPGA bitstreams & other metadata. IAP and Auto Upgrade both write images to this flash that the System Controller will use to re-program the FPGA. Add a phandle property signifying which flash device is connected to the system controller. Signed-off-by: Conor Dooley Reviewed-by: Rob Herring --- .../soc/microchip/microchip,mpfs-sys-controller.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml index 04ffee3a7c59..97a7cb74cbf9 100644 --- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml +++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml @@ -26,6 +26,16 @@ properties: compatible: const: microchip,mpfs-sys-controller + microchip,bitstream-flash: + $ref: "/schemas/types.yaml#/definitions/phandle" + description: + The SPI flash connected to the system controller's QSPI controller. + The system controller may retrieve FPGA bitstreams from this flash to + perform In-Application Programming (IAP) or during device initialisation + for Auto Update. The MSS and system controller have separate QSPI + controllers and this flash is connected to both. Software running in the + MSS can write bitstreams to the flash. + required: - compatible - mboxes