From mboxrd@z Thu Jan 1 00:00:00 1970 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 CC1BEC433F5 for ; Wed, 6 Apr 2022 17:24:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239023AbiDFR0j (ORCPT ); Wed, 6 Apr 2022 13:26:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239064AbiDFR01 (ORCPT ); Wed, 6 Apr 2022 13:26:27 -0400 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF933205BDF; Wed, 6 Apr 2022 08:25:24 -0700 (PDT) Received: by mail-lf1-x134.google.com with SMTP id p10so4646090lfa.12; Wed, 06 Apr 2022 08:25:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=buklFgMo3io8o1oTm+e0Xy6mGquidMcjQ+rAVmjF0R0=; b=IpUBnNb1wMpq3Z33rLXUmoesOPAyubbH73r3NT6CG2VFE7ISsrjIUEOS4mq1gMPJ0/ y/P3ojZkkt5w1AXkNY2BYWBVLXwhiaiDchr3olLAUF1lLuK/mxEVqh5ainO6buKOAQcW cUQazL0acLThFgQpSb6DFLnF60L9LGJUgO4uNUxz397btFBQeiciuYcoqB1UwvkYTjgM +GYm8SLvp98Oka8FJutNz86JOqwL1MFh3KNAjkKuYRl8NwT6VNsNLWKpihRnTNa/pYmg vT3st63NFAB33DNhWFfKe4Gm/CQd4KYl+hY5lpXmcLaexYpP63+/ZlNXrr/DUxmdlVw5 rGgw== 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:mime-version :content-transfer-encoding; bh=buklFgMo3io8o1oTm+e0Xy6mGquidMcjQ+rAVmjF0R0=; b=aMertZ/mQXLyIblB4e74SqA18SJZWGbjak87x6yz1Bfbicq0v+a/Dqn39uCyEXx+yc 8wZ+uHmXEA6Uhrs1BYb51/2FEiICW6jUlRuw3rlpY1f88oVpAucMtE7r1ZdPNnLTBA7S DzOoKvw9IOvLy47QsAWDzph+1ofIUeEHv2qtSIz7EoBL+LntTOVjRV1SdO7A8KBHOJR3 VSqTnzFA8JSMrhrjANqQk7wMSDwJLVyvMJLl2+dxp288H2RPBvAW+JIC+ihXtAElWUkM 69XY79T3faOMz/7cKCI/VU3Vi3Irqh4KSHEyCsji3MnlR8H+N8Cwf7T4V/kWfX4Jyd1G gJhA== X-Gm-Message-State: AOAM531xNrDOgn1cNe86d/Fm4MxQfGBUTYrCi5xBZDYgCfCpd/XlG+SA 5a0sq3ZO/CQjz/v/MZfTIlA= X-Google-Smtp-Source: ABdhPJw+wxyyrmHkxuNDGzpTAjtnLv+6MCubb/xVpbVgTR8NNXWidB7jX7O3yhmXgjH6l8xw/z/JWg== X-Received: by 2002:a05:6512:3dab:b0:44a:247:2d8 with SMTP id k43-20020a0565123dab00b0044a024702d8mr6374447lfv.628.1649258723148; Wed, 06 Apr 2022 08:25:23 -0700 (PDT) Received: from localhost.lan (ip-194-187-74-233.konfederacka.maverick.com.pl. [194.187.74.233]) by smtp.gmail.com with ESMTPSA id y5-20020a2e3205000000b0024b045e3b18sm1557359ljy.66.2022.04.06.08.25.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Apr 2022 08:25:22 -0700 (PDT) From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= To: Rob Herring , Krzysztof Kozlowski , Srinivas Kandagatla , Tom Rini Cc: Florian Fainelli , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, u-boot@lists.denx.de, bcm-kernel-feedback-list@broadcom.com, linux-kernel@vger.kernel.org, =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Subject: [PATCH] dt-bindings: nvmem: u-boot,env: add Broadcom's variant binding Date: Wed, 6 Apr 2022 17:25:15 +0200 Message-Id: <20220406152515.31316-1-zajec5@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Rafał Miłecki Broadcom uses U-Boot for some of their recent platforms like BCM4908. They decided to use modified environment variables variables format though. Their header includes 2 extra 32 b fields at the beginning. The first field meaning is unknown, the second one stores length of env data block. Example (length 0x4000): $ hexdump -n 32 -C -s 0x40000 /dev/mtdblock0 00040000 76 6e 45 75 00 40 00 00 34 89 7a 82 49 4d 41 47 |vnEu.@..4.z.IMAG| 00040010 45 3d 4e 41 4e 44 3a 31 4d 2c 31 30 32 34 4d 00 |E=NAND:1M,1024M.| Add a custom "compatible" value to allow describing Broadcom devices properly. Signed-off-by: Rafał Miłecki --- Documentation/devicetree/bindings/nvmem/u-boot,env.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml index e70b2a60cb9a..6a6b223be4a0 100644 --- a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml +++ b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml @@ -36,6 +36,8 @@ properties: const: u-boot,env-redundant-bool - description: Two redundant blocks with active having higher counter const: u-boot,env-redundant-count + - description: Broadcom's variant with custom header + const: brcm,env reg: maxItems: 1 -- 2.34.1