linux-kernel - [PATCH 0/2] spi: cadence-quadspi: Fix DTR op checks and timeout in SPI NAND write operations

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]

Date:   Tue, 13 Jul 2021 12:57:40 +0000
From:   Apurva Nandan <a-nandan@...com>
To:     Mark Brown <broonie@...nel.org>, <linux-spi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     Apurva Nandan <a-nandan@...com>, Pratyush Yadav <p.yadav@...com>,
        Vignesh Raghavendra <vigneshr@...com>
Subject: [PATCH 0/2] spi: cadence-quadspi: Fix DTR op checks and timeout in SPI NAND write operations

Hi,
This series proposes fixes for cadence-quadspi controller for the
following issues with SPI NAND flashes:

- Due to auto-HW polling without address phase, the cadence-quadspi
  controller timeouts when performing any write operation on SPI NAND
  flash.

- When checking for DTR spi_mem_op, cadence-quadspi doesn't ignore a
  zero length phase in the SPI instruction, resulting in false negatives.

This series has been tested on TI J721e EVM with the Winbond W35N01JW
flash.

Apurva Nandan (2):
  spi: cadence-quadspi: Disable Auto-HW polling
  spi: cadence-quadspi: Fix check condition for DTR ops

 drivers/spi/spi-cadence-quadspi.c | 39 ++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 16 deletions(-)

-- 
2.17.1