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[23.128.96.18]) by mx.google.com with ESMTP id e9si16415579edv.149.2021.03.17.05.26.14; Wed, 17 Mar 2021 05:26:14 -0700 (PDT) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=T8mMHzfr; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-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 S229699AbhCQMZb (ORCPT + 6 others); Wed, 17 Mar 2021 08:25:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56548 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229643AbhCQMZa (ORCPT ); Wed, 17 Mar 2021 08:25:30 -0400 Received: from mail-pg1-x52c.google.com (mail-pg1-x52c.google.com [IPv6:2607:f8b0:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55E7AC061760 for ; Wed, 17 Mar 2021 05:25:30 -0700 (PDT) Received: by mail-pg1-x52c.google.com with SMTP id 16so18266844pgo.13 for ; Wed, 17 Mar 2021 05:25:30 -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:mime-version :content-transfer-encoding; bh=dytfyZh+t/6hBvEK1wCLf/jrNd0VZgcEm5bChCDpMzg=; b=T8mMHzfr8C/YC+9JiBfAbhRi52k5vAbU1VVHjqSTp3ajN4ZKLsUYVNhz0EYauoAGnJ Z7UUo63Zr9zkYEyhXZZM8ARh8/UHXXPR+XznYaUit7xmRsRY78J9rUmRtLjynb254c41 hiH/Hdonpd46H7Fv3uvZ9bXzU64vn0UZ1InzI/8I2zfNnjcYAf7aeJGmJJZmDqAroUfa RUJwxQQDAbWtj9v/eHgVrtvzdizvw59Ryky9bpdn7XS3QxLI7jGFKMIycbUV+rqLZYQG bJ4KNzUdYCtl/VgFYXbqnGLeyTprjcxQy7inOiff5CFNh17dEGC7A+9cSfSLVRSh8K5+ tSEw== 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:mime-version :content-transfer-encoding; bh=dytfyZh+t/6hBvEK1wCLf/jrNd0VZgcEm5bChCDpMzg=; b=NP00Blm2izTIBOkgWQ48dk5tckeJNN7JiU0tkmGrZLP0bARkook0oBJJ2chS6Fzawe Hd9WG/Vryu0IatSJb71k6pDNb+0rxmPD0OX89KxYe4RuSSxTQC8c/OhhmU/9y4p4x78O xQjTZLHjJUVAgDczyoPLGhsM9S70E+KGRJ8c34k2AWa6n4UjD17R8MKkzW61B9zPmu1H AmXkJ+vd5vybfxO4m5MojWEAYHejjr/UkdnMo2vGQkAvS+v6CjlO4+J9o0MzPZ+0vwY3 2qLqa+WhMgBR/gjJBroCuQ5LpBFbXe3hmTSP5BzVwjplLh3E4xbwyrJHJNMxQO3cQ1db lF5Q== X-Gm-Message-State: AOAM533QYwYcF0uYw3yxtc+LQjWIiHPGn/KSrRxrJrNhmya+jYc7admS KigX+bfJ37T8CM9tWeyjV+W7 X-Received: by 2002:a63:1d0b:: with SMTP id d11mr2426883pgd.190.1615983929440; Wed, 17 Mar 2021 05:25:29 -0700 (PDT) Received: from localhost.localdomain ([103.66.79.72]) by smtp.gmail.com with ESMTPSA id y23sm19285730pfo.50.2021.03.17.05.25.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Mar 2021 05:25:29 -0700 (PDT) From: Manivannan Sadhasivam To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, boris.brezillon@collabora.com, Daniele.Palmas@telit.com, bjorn.andersson@linaro.org, Manivannan Sadhasivam Subject: [PATCH v5 0/3] Add support for secure regions in NAND Date: Wed, 17 Mar 2021 17:55:10 +0530 Message-Id: <20210317122513.42369-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On a typical end product, a vendor may choose to secure some regions in the NAND memory which are supposed to stay intact between FW upgrades. The access to those regions will be blocked by a secure element like Trustzone. So the normal world software like Linux kernel should not touch these regions (including reading). So this series adds a property for declaring such secure regions in DT so that the driver can skip touching them. While at it, the Qcom NANDc DT binding is also converted to YAML format. Thanks, Mani Changes in v5: * Switched to "uint64-matrix" as suggested by Rob * Moved the whole logic from qcom driver to nand core as suggested by Boris Changes in v4: * Used "uint32-matrix" instead of "uint32-array" as per Rob's review. * Collected Rob's review tag for binding conversion patch Changes in v3: * Removed the nand prefix from DT property and moved the property parsing logic before nand_scan() in driver. Changes in v2: * Moved the secure-regions property to generic NAND binding as a NAND chip property and renamed it as "nand-secure-regions". Manivannan Sadhasivam (3): dt-bindings: mtd: Convert Qcom NANDc binding to YAML dt-bindings: mtd: Add a property to declare secure regions in NAND chips mtd: rawnand: Add support for secure regions in NAND memory .../bindings/mtd/nand-controller.yaml | 7 + .../devicetree/bindings/mtd/qcom,nandc.yaml | 196 ++++++++++++++++++ .../devicetree/bindings/mtd/qcom_nandc.txt | 142 ------------- drivers/mtd/nand/raw/nand_base.c | 105 ++++++++++ include/linux/mtd/rawnand.h | 4 + 5 files changed, 312 insertions(+), 142 deletions(-) create mode 100644 Documentation/devicetree/bindings/mtd/qcom,nandc.yaml delete mode 100644 Documentation/devicetree/bindings/mtd/qcom_nandc.txt -- 2.25.1