From patchwork Sat Jan 8 16:11:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gabriel L. Somlo" X-Patchwork-Id: 530893 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 B469CC433FE for ; Sat, 8 Jan 2022 16:11:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234677AbiAHQLo (ORCPT ); Sat, 8 Jan 2022 11:11:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231966AbiAHQLn (ORCPT ); Sat, 8 Jan 2022 11:11:43 -0500 Received: from mail-qt1-x830.google.com (mail-qt1-x830.google.com [IPv6:2607:f8b0:4864:20::830]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0322CC06173F; Sat, 8 Jan 2022 08:11:43 -0800 (PST) Received: by mail-qt1-x830.google.com with SMTP id c10so7180742qte.2; Sat, 08 Jan 2022 08:11:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=jzGV7VYBk0j14T6Qcu245zlbmVPGTLkhIeoiqo+RDYM=; b=HHTYCElT5c23m4snOriCDIRaFosBXgaaiteTa8Xe6Vd4yjRy9p44rseeXTEMLqk45z zJd9/i7bJAQ9qLMNB7ZEbMCQLDBND9icahZGo0ytZroMvkZ2BjnSmilaAyUUyABW9l5+ rQI5/QQP+uPp3zyT2pFgHDkmf/fN6nurMQwElLBWExLNM/g5onbN5bm8pc6gHWD+iQ0e /F8TiNnqUtiv0UjpXaa5ubdTIs4UnH5sah64tHmMV/YRpoW5ZbJAQZOIW0BFsAX1QwTG zW+39/yGzX+XA02U+n6gkEKzEdarGOtsi0KrmK/op2gjZcwQv8Lc+qbmLAgLyqHtXNzo XDBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=jzGV7VYBk0j14T6Qcu245zlbmVPGTLkhIeoiqo+RDYM=; b=NOVrt0hTkPVV1k8LCKzdelJXrvjoGWxRG1yadX0+Bg8IpE+E53MciB8h10U5G+dBxi HZB+Y1TMlV9/i3xhrS91jdEeVsoVWHaWRiPRPCO+1b5i6DVDZAOhXGLA8tviHT0Q8pvn 6ot8V4mhEFM64ne54fRT1+KsnJRHVMHjLalH6Hg03Yl5piqzJmY7utx+ehmMzHJnaOmj qv9ZTexGGij+n5LMpKvBq0GrOVwZ6/qy4vfskFERrLyyUPwUr6mnMLEyqZTRCJboWoPh PKS7A+S9xH07OGWaRdFhITbIC6lRqL0GQbCJ4KROmzAZ0u/S/GQ6G5dd7DZ645iedj52 ublg== X-Gm-Message-State: AOAM533RZYinZG7lBDKYrTufuXl0GjilDroViqFAr9NJBbXwl4YB3FE+ HZy4EgddQnswjRlSyMBCQ1YJcscKp4+pyQ== X-Google-Smtp-Source: ABdhPJxmGtJcG87jrszUJavV3l3CWCTGy/MDU+Gk+4M7S0gZV5WjtiLc3I2zFceug5Q302rsamR5qw== X-Received: by 2002:a05:622a:1456:: with SMTP id v22mr5377020qtx.310.1641658301968; Sat, 08 Jan 2022 08:11:41 -0800 (PST) Received: from glsvmlin.ini.cmu.edu (GLSVMLIN.INI.CMU.EDU. [128.2.16.9]) by smtp.gmail.com with ESMTPSA id bs9sm1207435qkb.87.2022.01.08.08.11.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 08 Jan 2022 08:11:41 -0800 (PST) From: Gabriel Somlo To: linux-kernel@vger.kernel.org Cc: robh+dt@kernel.org, devicetree@vger.kernel.org, ulf.hansson@linaro.org, linux-mmc@vger.kernel.org, kgugala@antmicro.com, mholenko@antmicro.com, krakoczy@antmicro.com, mdudek@internships.antmicro.com, paulus@ozlabs.org, joel@jms.id.au, shorne@gmail.com, geert@linux-m68k.org, david.abdurachmanov@sifive.com, florent@enjoy-digital.fr, rdunlap@infradead.org, andy.shevchenko@gmail.com Subject: [PATCH v9 2/3] dt-bindings: mmc: Add bindings for LiteSDCard Date: Sat, 8 Jan 2022 11:11:33 -0500 Message-Id: <20220108161134.2419279-3-gsomlo@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220108161134.2419279-1-gsomlo@gmail.com> References: <20220108161134.2419279-1-gsomlo@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org LiteSDCard is a small footprint, configurable SDCard core for FPGA based SoCs. Signed-off-by: Gabriel Somlo Reviewed-by: Geert Uytterhoeven Reviewed-by: Rob Herring Reviewed-by: Joel Stanley --- .../devicetree/bindings/mmc/litex,mmc.yaml | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/litex,mmc.yaml diff --git a/Documentation/devicetree/bindings/mmc/litex,mmc.yaml b/Documentation/devicetree/bindings/mmc/litex,mmc.yaml new file mode 100644 index 000000000000..f57cf42b8db7 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/litex,mmc.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/litex,mmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LiteX LiteSDCard device + +maintainers: + - Gabriel Somlo + +description: | + LiteSDCard is a small footprint, configurable SDCard core for FPGA based + system on chips. + + The hardware source is Open Source and can be found on at + https://github.com/enjoy-digital/litesdcard/. + +allOf: + - $ref: mmc-controller.yaml# + +properties: + compatible: + const: litex,mmc + + reg: + items: + - description: PHY registers + - description: CORE registers + - description: DMA Reader buffer + - description: DMA Writer buffer + - description: IRQ registers + minItems: 4 + + reg-names: + items: + - const: phy + - const: core + - const: reader + - const: writer + - const: irq + minItems: 4 + + clocks: + maxItems: 1 + description: + Handle to reference clock. + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - reg-names + - clocks + +additionalProperties: false + +examples: + - | + mmc: mmc@12005000 { + compatible = "litex,mmc"; + reg = <0x12005000 0x100>, + <0x12003800 0x100>, + <0x12003000 0x100>, + <0x12004800 0x100>, + <0x12004000 0x100>; + reg-names = "phy", "core", "reader", "writer", "irq"; + clocks = <&reference_clk>; + interrupts = <4>; + };