From patchwork Thu Nov 24 19:13:57 2022 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: 628520 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 B38EBC43219 for ; Thu, 24 Nov 2022 19:14:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229531AbiKXTOP (ORCPT ); Thu, 24 Nov 2022 14:14:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229452AbiKXTOO (ORCPT ); Thu, 24 Nov 2022 14:14:14 -0500 Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A747581581; Thu, 24 Nov 2022 11:14:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=s31663417; t=1669317246; bh=NFWnNIWqkptw3ml6zf4DoZN14+tM1IwZ1YOxSQItJOg=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date; b=qRDGKxIB3KUwiyL5cPwS3qckpNr+fdytN1/q52WReVT+FHiy8go0kdxmp+Pwezs1l oYVW2FTw62eb7Dr149j4l0e2ERhEgAHAcumG0ld1tUsd1wai9z0Fh28z+kaqb4cCbC kLiZFEzjwUbnyprILH0tRR1rmzr39WmmgSN29WHwJ57+c3TqmjcPZwuli/VMAfYRBC wmWuWpu63LDxrE/LOJO4OvhpnCdXWqRATbwys3sANIpMN9d4B/Z6OOyHEyNDzZmILa GgUnCBYsWaRfaU2+FfMGK+oQ4aAP1rncZvtaFiI2+zmIe1g+teLBJowzI8mjQkPb3s VJ2ifp8f8qEPg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from probook ([95.223.44.31]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MXXyJ-1oPM5y40J5-00Z1jI; Thu, 24 Nov 2022 20:14:06 +0100 From: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= To: linux-spi@vger.kernel.org, openbmc@lists.ozlabs.org Cc: Rob Herring , Krzysztof Kozlowski , =?utf-8?q?Jonathan?= =?utf-8?q?_Neusch=C3=A4fer?= , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/3] Nuvoton WPCM450 FIU SPI flash controller Date: Thu, 24 Nov 2022 20:13:57 +0100 Message-Id: <20221124191400.287918-1-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Provags-ID: V03:K1:pxBod3xIczrwLY9TifnwC2+iMmnbFLXoB3ncLDjLkc76RRm7b5V DQY3on6qpKyjtMl6Tl46ZNBFCBoIDNhbQi8ihsiK3KOpORQSJBzxsihmQ6043gmqrEboUtQ nxt77CW/A/A+ZRr/GjXCJLoaQ6YTihgLcc2CJpzXzEIMSwOHN297UWQWfJM3SlC3N18mHA5 yUv+synyMgjdNL2EWsVUA== UI-OutboundReport: notjunk:1;M01:P0:6rq0NvK4hUg=;9vvRmFGmZv6gIbOpnueK+q+q0Jm 6ERSxohsixgTlgNiU/Xndkj/jA7u8heRAVIOQfSGEIMlr5vG/dRHKCwuJEkWb00rPjRX/mwKB YlOHMpNT8k9KY+RqOzEII/DX/VF1BHW7wWbhWlJyHBHKQU4Lc8zrFXqzw+ptd0nKrAiQe8Ec1 KkPLAJ5c+6plhUApX9WuJjQM1sBAxozt8Djaqjw0CBEAM6AZkGcyvlwpJdPRM70mcCtPxj+Pf az2zR+r1R4QWrY7K8/Iht0TBCUYbSI1uCnY83qq/DbkAHnXcZMnOssnqPLbF87FCHyucZS4ec vbfR89zxtCkG/JZjZd166UyU1bQt7WaX9jcdIkB2U0oD+LhaNEUwTbLmj3wBlWH22GWFGIHk1 wzTMihBdAPSkd1mAwOUAHFxSlAVdEIm6PnA8OMpsa7x2mXlUu8qG62GhLAhecnDYj1aykD+Bh /UvYoEqX6y7uPKB3TyBEiA0rvE21UdsCypFPyRiul8jLSVlB0+gIcb787ls2ThwW6IGqkT+V8 jwp1QX9h8v40tgZN/MC7+Lp49nsLZjdYxn+K7X00kMzTw9+E8se0L3S6Jz1ern6wJgTGnSyzV l7QX3GFQztupKGJ/s6Qa9LOCQrAPZ5vPxLuq5PRVXRcU4iOjYnM5625OfH5vniNartVgdzcIj HD8jYmKNW6u9/nMozEdvGbR2+tTPBKI/r7ua3px8wvvSRCWqXa0wFlHjmyQ+izu84UDDKPj7b +BmMdBOM8BpTuzQ95hlAh60cfMi2XYDnKbTl/QjTy9xizikIHMSHWfmRdLKb7GGbzwP9fbaYy CjxPv/8GtaAK4WKJwtsztTcBXbqTbqK6yk0qRYtydOBLr5nvSeiiGBnfraNht+0XC0gDVZ23F uWhoxO2ymApUbZcQkPsV11qo794JYcfi1o6MAC9yoJCWGQUizrQhzTi0dr2HC+JRMqh6iGe6y viIb3qA3hUNcaUR3IIfb3W2sPcs= Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org This patchset adds DT bindings and a driver for the Flash Interface Unit (FIU), the SPI flash controller in the Nuvoton WPCM450 BMC SoC. It supports four chip selects, and direct (memory-mapped) access to 16 MiB per chip. Larger flash chips can be accessed by software-defined SPI transfers. The existing NPCM7xx FIU driver is sufficitently incompatible with the WPCM450 FIU that I decided to write a new driver. Changelog for v2: - Dropped the patches which have been applied in the meantime, leaving only three out of eight - Changed the binding to require both items in the reg property, because there is no need to keep the second item optional, suggested by Krzysztof Kozlowski - Various other cleanups suggested by Krzysztof Kozlowski and the kernel test robot Jonathan Jonathan Neuschäfer (3): dt-bindings: spi: Add Nuvoton WPCM450 Flash Interface Unit (FIU) spi: wpcm-fiu: Add driver for Nuvoton WPCM450 Flash Interface Unit (FIU) spi: wpcm-fiu: Add direct map support .../bindings/spi/nuvoton,wpcm450-fiu.yaml | 66 +++ drivers/spi/Kconfig | 11 + drivers/spi/Makefile | 1 + drivers/spi/spi-wpcm-fiu.c | 508 ++++++++++++++++++ 4 files changed, 586 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/nuvoton,wpcm450-fiu.yaml create mode 100644 drivers/spi/spi-wpcm-fiu.c --- 2.35.1