From patchwork Thu Mar 28 14:19:06 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Gorski X-Patchwork-Id: 1068246 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="ic/l5UNe"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44VRnc2H9Zz9sRG for ; Fri, 29 Mar 2019 01:19:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726150AbfC1OTP (ORCPT ); Thu, 28 Mar 2019 10:19:15 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:38362 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726076AbfC1OTP (ORCPT ); Thu, 28 Mar 2019 10:19:15 -0400 Received: by mail-wm1-f68.google.com with SMTP id w15so4245574wmc.3 for ; Thu, 28 Mar 2019 07:19:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=viIckbTkgF0tqHSzDsKQ/EGpdVoMTV3xTNPJQk3jHto=; b=ic/l5UNeBWuyYo+4+r4rMYSb+IxtVARZD8EKpS2uwnUUPe1sHyf09E2puP0eHPerTs 9rfP29iHCCGCeB1Dw4XtxS0LajxgY73oTSpav+wsaqDiq2NksoYOPlObqZvZUlCWXh4E oyY4XtWz/U5xUFAlrEqeW6EgXzP4witlCDOOUApeyi5nTchNOsEMMH75VLTnApNfKJ++ MtH9b5jdgFNdBUO4v/b7vpYjR0SKsTAxIreiznyf0jjlBaZK0ojBgL85iI/bDzTAOwCI qZjSjSg1JxBfNO1GPadUyoXYXcKBWbaqMCex0RU2RbsI1LT2swO2hdN8j1zwEmHwwxaH 6TDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=viIckbTkgF0tqHSzDsKQ/EGpdVoMTV3xTNPJQk3jHto=; b=eXeiewEd0MellenYjRrOml8ZCwwi+I4F964ck8ns28B4BuT962RFZxRU7OkJkgp8O0 YvB2ZBEMJJfiCLEziccNAz7OyCEgdUyEhY7U/6wo3MIBI5FRy5gVabWVGWFbMbt8OX7J UzCbZ/C4f5qN0fa3AiP6mWFpbehEFqTgYnO5HcMoWRn9sCVy6geZRhtr7nFaOYsxaYio iSTUUYLILIFF1JJ8gwexYB+qeTbFRxbiGa5RL17i8xuGblGbGwfGjfpwEESCrr6XCu7s iObM/fGtqZcFDTINzgwfpCgVFQ1ixjzZnReWQfjQiismyWP2QCk1VSUc88wEbvGovV6H WPEg== X-Gm-Message-State: APjAAAWriXtj+RIVePwpxyWkbzMi6nFcS6Y6KTaS6hQhJPs0o8U2txXy rnC5Q49lVuOJqJAZyRAB7VqjpGOy X-Google-Smtp-Source: APXvYqzcnKwCe6ffrgtV/J5sepfVDrSATJkGA8+tVWffSOJaUsJdFyl5t1AuGQU7HT9gf6J0w6TYUA== X-Received: by 2002:a1c:cb0e:: with SMTP id b14mr129642wmg.149.1553782752855; Thu, 28 Mar 2019 07:19:12 -0700 (PDT) Received: from localhost.localdomain ([2001:470:9e39::64]) by smtp.gmail.com with ESMTPSA id t2sm51802879wra.9.2019.03.28.07.19.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 28 Mar 2019 07:19:12 -0700 (PDT) From: Jonas Gorski To: devicetree@vger.kernel.org, linux-mtd@lists.infradead.org Cc: David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Rob Herring , Mark Rutland , Florian Fainelli , bcm-kernel-feedback-list@broadcom.com Subject: [PATCH V2 1/5] dt-bindings: mtd: describe the simple BCM963XX NOR flash layout Date: Thu, 28 Mar 2019 15:19:06 +0100 Message-Id: <20190328141910.5723-2-jonas.gorski@gmail.com> X-Mailer: git-send-email 2.13.2 In-Reply-To: <20190328141910.5723-1-jonas.gorski@gmail.com> References: <20190328141910.5723-1-jonas.gorski@gmail.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add binding documentation for the standard CFE based BCM963XX flash layout, found in most devices using a BCM63XX SoC with NOR flash. Reviewed-by: Rob Herring Signed-off-by: Jonas Gorski Reviewed-by: Florian Fainelli --- .../brcm,bcm963xx-cfe-nor-partitions.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt diff --git a/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt new file mode 100644 index 000000000000..9f630e95f180 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm963xx-cfe-nor-partitions.txt @@ -0,0 +1,24 @@ +Broadcom BCM963XX CFE Loader NOR Flash Partitions +================================================= + +Most Broadcom BCM63XX SoC based devices follow the Broadcom reference layout for +NOR. The first erase block used for the CFE bootloader, the last for an +NVRAM partition, and the remainder in-between for one to two firmware partitions +at fixed offsets. A valid firmware partition is identified by the ImageTag +header found at beginning of the second erase block, containing the rootfs and +kernel offsets and sizes within the firmware partition. + +Required properties: +- compatible : must be "brcm,bcm963xx-cfe-nor-partitions" + +Example: + +flash@1fc00000 { + compatible = "cfi-flash"; + reg = <0x1fc00000 0x400000>; + bank-width = <2>; + + partitions { + compatible = "brcm,bcm963xx-cfe-nor-partitions"; + }; +};