From patchwork Thu Sep 2 09:56:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 506749 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA8EEC25AEB for ; Thu, 2 Sep 2021 09:56:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 97CB561053 for ; Thu, 2 Sep 2021 09:56:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245753AbhIBJ5c (ORCPT ); Thu, 2 Sep 2021 05:57:32 -0400 Received: from mail.kernel.org ([198.145.29.99]:39386 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343791AbhIBJ50 (ORCPT ); Thu, 2 Sep 2021 05:57:26 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4F9D96108B; Thu, 2 Sep 2021 09:56:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1630576588; bh=K/6VfoFPQ9qMZMEaNkK+OZgH2Dx1omVf4MYgeH69nuk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SanjNYPui/e5sQjaDNQzDu2moZAouXPYzkzq6SnNO2uqx7KyLLBxhw3iIdqcsUMKg LIs+cpV0+ce8tOw9xHa6PWP6ywiq2B37QZW/cT0OJ7K64UVvaNNo6Pu5m5yxQT02Zo 4Locu/q3KELTQaO95hrFNchpj/I4kvBCH/1vzKhFr+OIC9UFX/BZkI61HGDkUZA1H9 /LB4DgHsRyH71jnEKQGw5PnT/sbixWJgHn5xJfV5MbARwqJ3NU94wFy20yZutbuMnY C3qVU3wQ8upLObtWgghz4pUcxDi7uPVrSsA1CiGBQSxN175YWZpkkdUxp9TrYMwsYA wNg7wH+aaMLnQ== From: Roger Quadros To: tony@atomide.com Cc: robh+dt@kernel.org, krzysztof.kozlowski@canonical.com, miquel.raynal@bootlin.com, nm@ti.com, lokeshvutla@ti.com, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, Roger Quadros Subject: [PATCH v2 5/6] dt-bindings: mtd: Remove gpmc-nor.txt Date: Thu, 2 Sep 2021 12:56:08 +0300 Message-Id: <20210902095609.16583-6-rogerq@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210902095609.16583-1-rogerq@kernel.org> References: <20210902095609.16583-1-rogerq@kernel.org> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org There is no GPMC NOR compatible or device driver. GPMC is just a bus interface over which standard (CFI/JEDC) NOR Flash chips can be attached. For NOR chip bindings, please refer to Documentation/devicetree/bindings/mtd/mtd-physmap.yaml For GPMC bus timing configuration, please refer to Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml Signed-off-by: Roger Quadros --- .../devicetree/bindings/mtd/gpmc-nor.txt | 98 ------------------- 1 file changed, 98 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mtd/gpmc-nor.txt diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt b/Documentation/devicetree/bindings/mtd/gpmc-nor.txt deleted file mode 100644 index c9bea106ea65..000000000000 --- a/Documentation/devicetree/bindings/mtd/gpmc-nor.txt +++ /dev/null @@ -1,98 +0,0 @@ -Device tree bindings for NOR flash connect to TI GPMC - -NOR flash connected to the TI GPMC (found on OMAP boards) are represented as -child nodes of the GPMC controller with a name of "nor". - -All timing relevant properties as well as generic GPMC child properties are -explained in a separate documents. Please refer to -Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml - -Required properties: -- bank-width: Width of NOR flash in bytes. GPMC supports 8-bit and - 16-bit devices and so must be either 1 or 2 bytes. -- compatible: Documentation/devicetree/bindings/mtd/mtd-physmap.txt -- gpmc,cs-on-ns: Chip-select assertion time -- gpmc,cs-rd-off-ns: Chip-select de-assertion time for reads -- gpmc,cs-wr-off-ns: Chip-select de-assertion time for writes -- gpmc,oe-on-ns: Output-enable assertion time -- gpmc,oe-off-ns: Output-enable de-assertion time -- gpmc,we-on-ns Write-enable assertion time -- gpmc,we-off-ns: Write-enable de-assertion time -- gpmc,access-ns: Start cycle to first data capture (read access) -- gpmc,rd-cycle-ns: Total read cycle time -- gpmc,wr-cycle-ns: Total write cycle time -- linux,mtd-name: Documentation/devicetree/bindings/mtd/mtd-physmap.txt -- reg: Chip-select, base address (relative to chip-select) - and size of NOR flash. Note that base address will be - typically 0 as this is the start of the chip-select. - -Optional properties: -- gpmc,XXX Additional GPMC timings and settings parameters. See - Documentation/devicetree/bindings/memory-controllers/ti,gpmc.yaml - -Optional properties for partition table parsing: -- #address-cells: should be set to 1 -- #size-cells: should be set to 1 - -Example: - -gpmc: gpmc@6e000000 { - compatible = "ti,omap3430-gpmc", "simple-bus"; - ti,hwmods = "gpmc"; - reg = <0x6e000000 0x1000>; - interrupts = <20>; - gpmc,num-cs = <8>; - gpmc,num-waitpins = <4>; - #address-cells = <2>; - #size-cells = <1>; - - ranges = <0 0 0x10000000 0x08000000>; - - nor@0,0 { - compatible = "cfi-flash"; - linux,mtd-name= "intel,pf48f6000m0y1be"; - #address-cells = <1>; - #size-cells = <1>; - reg = <0 0 0x08000000>; - bank-width = <2>; - - gpmc,mux-add-data; - gpmc,cs-on-ns = <0>; - gpmc,cs-rd-off-ns = <186>; - gpmc,cs-wr-off-ns = <186>; - gpmc,adv-on-ns = <12>; - gpmc,adv-rd-off-ns = <48>; - gpmc,adv-wr-off-ns = <48>; - gpmc,oe-on-ns = <54>; - gpmc,oe-off-ns = <168>; - gpmc,we-on-ns = <54>; - gpmc,we-off-ns = <168>; - gpmc,rd-cycle-ns = <186>; - gpmc,wr-cycle-ns = <186>; - gpmc,access-ns = <114>; - gpmc,page-burst-access-ns = <6>; - gpmc,bus-turnaround-ns = <12>; - gpmc,cycle2cycle-delay-ns = <18>; - gpmc,wr-data-mux-bus-ns = <90>; - gpmc,wr-access-ns = <186>; - gpmc,cycle2cycle-samecsen; - gpmc,cycle2cycle-diffcsen; - - partition@0 { - label = "bootloader-nor"; - reg = <0 0x40000>; - }; - partition@40000 { - label = "params-nor"; - reg = <0x40000 0x40000>; - }; - partition@80000 { - label = "kernel-nor"; - reg = <0x80000 0x200000>; - }; - partition@280000 { - label = "filesystem-nor"; - reg = <0x240000 0x7d80000>; - }; - }; -};