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  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Sun, 10 May 2020 11:22:17 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <p.yadav@...com>
CC:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <broonie@...nel.org>, <Nicolas.Ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <Ludovic.Desroches@...rochip.com>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-spi@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <nsekhar@...com>
Subject: Re: [PATCH v4 12/16] mtd: spi-nor: perform a Soft Reset on shutdown

Hi, Pratyush,

On Friday, April 24, 2020 9:44:06 PM EEST Pratyush Yadav wrote:
> A Software Reset sequence will return the flash to Power-on-Reset (POR)
> state. It consists of two commands: Soft Reset Enable and Soft Reset.
> 
> Perform a Soft Reset on shutdown on flashes that support it so that the
> flash can be reset to its initial state and any configurations made by
> spi-nor (given that they're only done in volatile registers) will be
> reset. This will hand back the flash in pristine state for any further
> operations on it.

Please don't introduce SPI_NOR_SOFT_RESET yet. We should instead determine the 
software reset sequence by inspecting BFPT[16], bits 13:8.

Cheers,
ta

Powered by blists - more mailing lists