linux-kernel - [PATCH 0/2] mtd: spi-nor: Avoid setting SRWD bit in SR

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230615111649.36344-1-amit.kumar-mahapatra@amd.com>
Date:   Thu, 15 Jun 2023 16:46:47 +0530
From:   Amit Kumar Mahapatra <amit.kumar-mahapatra@....com>
To:     <tudor.ambarus@...aro.org>, <pratyush@...nel.org>,
        <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>
CC:     <git@....com>, <michael@...le.cc>, <linux-mtd@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <amitrkcian2002@...il.com>,
        Amit Kumar Mahapatra <amit.kumar-mahapatra@....com>
Subject: [PATCH 0/2] mtd: spi-nor: Avoid setting SRWD bit in SR

Setting the status register write disable (SRWD) bit in the status
register (SR) with WP signal of the flash not connected will configure the
SR permanently as read-only. To avoid this a boolean type DT property
"broken-wp" is introduced. If this property is defined, the spi-nor doesn't
set the SRWD bit in SR while performing flash protection operation.
---
BRANCH: for-next
---
Amit Kumar Mahapatra (2):
  dt-bindings: mtd: jedec, spi-nor: Add DT property to avoid setting
    SRWD bit in status register
  mtd: spi-nor: Avoid setting SRWD bit in SR if WP signal not connected

 .../devicetree/bindings/mtd/jedec,spi-nor.yaml      | 13 +++++++++++++
 drivers/mtd/spi-nor/core.c                          |  3 +++
 drivers/mtd/spi-nor/core.h                          |  1 +
 drivers/mtd/spi-nor/swp.c                           |  5 +++--
 4 files changed, 20 insertions(+), 2 deletions(-)

-- 
2.17.1