lkml.org 
[lkml]   [2020]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v4 0/7] mtd: spi-nor: add xSPI Octal DTR support
From
Date

+ YC Lin in loop,

YC(ycllin@mxic.com.tw)will take over this patch set.


> Subject
>
> [PATCH v4 0/7] mtd: spi-nor: add xSPI Octal DTR support
>
> Hello,
>
> JESD216C has defined specification for Octal 8S-8S-8S and 8D-8D-8D.
> Based on JEDEC216C Basic Flash Parameter Table (BFPT) driver extract
> DWORD-18: command and command extension type.
> DWORD-20: Maximum operation speed of device in Octal mode.
>
> xSPI profile 1.0 table:
> DWORD-1: Read Fast command, the number of dummy cycles and address
nbytes
> for Read Status Register command.
> DWORD-2: Read/Write volatile Register command for CFG Reg2.
> DWORD-4 and DWORD-5: dummy cycles used for various frequencies based on
> maximum speed of device from BFPT 20th DWORD.
>
> Ccommand sequences to change to octal DTR mode:
> The length of each command sequence is 8 per byte for single SPI mode
and
> patching driver to parse and execute these sequences for octal DTR mode.
>
> By Vignesh's comments, this patches set is dependency on Pratyush's
> [1][2][5][7][8] and [10][12].
>
> Tested on Macronix's Zynq PicoZed board with Macronix's SPI controller
> (spi-mxic.c) driver patched on mx25uw51245g Octal flash.
>


CONFIDENTIALITY NOTE:

This e-mail and any attachments may contain confidential information
and/or personal data, which is protected by applicable laws. Please be
reminded that duplication, disclosure, distribution, or use of this e-mail
(and/or its attachments) or any part thereof is prohibited. If you receive
this e-mail in error, please notify us immediately and delete this mail as
well as its attachment(s) from your system. In addition, please be
informed that collection, processing, and/or use of personal data is
prohibited unless expressly permitted by personal data protection laws.
Thank you for your attention and cooperation.

Macronix International Co., Ltd.

=====================================================================



============================================================================

CONFIDENTIALITY NOTE:

This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation.

Macronix International Co., Ltd.

=====================================================================

\
 
 \ /
  Last update: 2020-07-13 08:28    [W:0.346 / U:0.412 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site