From patchwork Sat Apr 13 10:32:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Kandagatla X-Patchwork-Id: 162171 Delivered-To: patch@linaro.org Received: by 2002:a02:c6d8:0:0:0:0:0 with SMTP id r24csp638363jan; Sat, 13 Apr 2019 03:34:32 -0700 (PDT) X-Google-Smtp-Source: APXvYqz8KGg5WPhWPZ0lDgcoeNYeAXrKf9zjzu1jr8RPlc3XhVsGUwpgJhBxyDjDUfqujS4gcREh X-Received: by 2002:a65:5202:: with SMTP id o2mr2238006pgp.402.1555151672661; Sat, 13 Apr 2019 03:34:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555151672; cv=none; d=google.com; s=arc-20160816; b=X8cjYpG2DDBPARHDE4YykCwpwxL+UQZ3yrdGrWY9gYrX1JU5mEejbNfmBBfYmHHnFr FvjQXOfeOIgP2Nlma2q25CqnSYuMFgwd+nkELhc7a92i3++W97sx75UmFLRipCnjEYjl nvRi0xBsPJP0gvbnAczl/l+Fe1DEIrRUhU/gLRA0ac5OGXRS9HulQMsSeuWXRgPIdwlp cZnm7BfvVAcHqzllhOEmfVmS1QV5vZ8Ocx77i+jY9XKxcUwyICHysztJlAMYTCd1dGAP yypdq7TF6GvEV6lvH5HGSB6DBGQ9QqB0X+YYJ+fWZz+nIgEWU7fuingGTSHkA3Eo0nbv oQ3A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=9V+TJFDFFCIM8e1FXxwOAxvWSYjX8RCZCP7tk0faJT8=; b=wxIUYVXhy9wuBypmSIEVmX6mZfN7LZc9tGijKtRJaWb2OlOcloBPYokQA+QktxNQkn fRA9xDoR6vcxY4HbsnbjBhNt5N4YvrSAOxh8dOOTQpqwdmOS2/iIvlkcxJDscqx5Usd5 xvvavVBQggvfUira3jQQPf/aTGwe7LUQHfktFI9E9QdBp1jPePzmyhbvphRFh0Xe2Qyo j76+xUPtba4HVGk8UhJqYGiwwsQ+lCSpZRv44bfJaxPtfIO4e85EZOFZn1XIRPogEuOu u6+DkIwVzSfGj6HBLGNY1yuRvyx0Eda74NjsERsA8+lLUDm2ajyKRkwNSBMBaivDXZ2V o1wg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=lnVeOVFJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 133si42819885pfu.82.2019.04.13.03.34.32; Sat, 13 Apr 2019 03:34:32 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=lnVeOVFJ; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727661AbfDMKeb (ORCPT + 30 others); Sat, 13 Apr 2019 06:34:31 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:40781 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727177AbfDMKdS (ORCPT ); Sat, 13 Apr 2019 06:33:18 -0400 Received: by mail-wr1-f65.google.com with SMTP id h4so15138338wre.7 for ; Sat, 13 Apr 2019 03:33:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=9V+TJFDFFCIM8e1FXxwOAxvWSYjX8RCZCP7tk0faJT8=; b=lnVeOVFJQGEyFSwu51J7Ga/uPAG8kxMWBIIyeKG28u42MYy4B0PwZZY7PPggI13V1r WVA0fvixU7O9NLoo5wZNVyP+OJSzBgvtAidsEYCtklPJW3aqs5iMVX3lsWoK6ujjO0b6 Dem/ZwXvXB6Xe14SJaroRtSF9xWVe3OB8NmbKh44XN36cziRiIYto524iKH9B/1q4XbR aCjGvEdXVxOeJAATkG5vxfKfqoJU/0CnpwON0dJr45aaZvwfSC+OL8f0JdOoZ+oF4kut g/7AiChKN3LPj5ao3O8oYCaXryW8xC6DwllOV/T3m/CVyhUKsE+l7uHyr/2q4XWWZUd8 HPPQ== 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:mime-version:content-transfer-encoding; bh=9V+TJFDFFCIM8e1FXxwOAxvWSYjX8RCZCP7tk0faJT8=; b=fUEhP7pArihmAs7VNAHBY0D2zNNaYR4ugLg+Bv0i4Kf3whxDuvC6jVycNTYpk2In92 Wp97faphLBmIdbDjO1VOnktv2OulF74jM3oCwIVCE9cUoV/LuMv5a6TAww2OIChfTJxM ooFu/jkrXA6jzz/7GAaEsFLVU2eLLoW8kUpsaVuwl82o0ChQBPMmmzOK3abYzcWRe0wq +YuZVQZ7LC9XP2vk4fCKq4LeQN+wr24UHBreEAmPVB39B3hFEeaMf248WE4m8/moFkSV RzF8PD8ch696Y9sqei0d5RlMVSml4YcBDNQ+TYuLjNJAKizrkvnozxrshsMJz9pg1l/E GPEg== X-Gm-Message-State: APjAAAXqZKvfBQVd/LBLgFXhAIR3RBsu2566wMFfMnIlIgtCVgONGFq3 oBWiBLxpnpuQ8PxFmj8kacIWQQ== X-Received: by 2002:adf:e78e:: with SMTP id n14mr16873353wrm.14.1555151597180; Sat, 13 Apr 2019 03:33:17 -0700 (PDT) Received: from srini-hackbox.lan (cpc89974-aztw32-2-0-cust43.18-1.cable.virginm.net. [86.30.250.44]) by smtp.gmail.com with ESMTPSA id u17sm19547303wmu.36.2019.04.13.03.33.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 13 Apr 2019 03:33:16 -0700 (PDT) From: Srinivas Kandagatla To: gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org Subject: [RESEND PATCH 09/20] dt-bindings: nvmem: Add STM32 factory-programmed romem Date: Sat, 13 Apr 2019 11:32:54 +0100 Message-Id: <20190413103305.9576-10-srinivas.kandagatla@linaro.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190413103305.9576-1-srinivas.kandagatla@linaro.org> References: <20190413103305.9576-1-srinivas.kandagatla@linaro.org> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Fabrice Gasnier Add documentation for STMicroelectronics STM32 Factory-programmed read only memory area. Signed-off-by: Fabrice Gasnier Reviewed-by: Rob Herring Signed-off-by: Srinivas Kandagatla --- .../bindings/nvmem/st,stm32-romem.txt | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt -- 2.21.0 diff --git a/Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt b/Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt new file mode 100644 index 000000000000..142a51d5a9be --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt @@ -0,0 +1,31 @@ +STMicroelectronics STM32 Factory-programmed data device tree bindings + +This represents STM32 Factory-programmed read only non-volatile area: locked +flash, OTP, read-only HW regs... This contains various information such as: +analog calibration data for temperature sensor (e.g. TS_CAL1, TS_CAL2), +internal vref (VREFIN_CAL), unique device ID... + +Required properties: +- compatible: Should be one of: + "st,stm32f4-otp" + "st,stm32mp15-bsec" +- reg: Offset and length of factory-programmed area. +- #address-cells: Should be '<1>'. +- #size-cells: Should be '<1>'. + +Optional Data cells: +- Must be child nodes as described in nvmem.txt. + +Example on stm32f4: + romem: nvmem@1fff7800 { + compatible = "st,stm32f4-otp"; + reg = <0x1fff7800 0x400>; + #address-cells = <1>; + #size-cells = <1>; + + /* Data cells: ts_cal1 at 0x1fff7a2c */ + ts_cal1: calib@22c { + reg = <0x22c 0x2>; + }; + ... + };