[U-Boot] Macronix NOR_SPI and Quad I/O

Chin Liang See chin.liang.see at intel.com
Mon Nov 28 07:17:20 CET 2016


On Sab, 2016-11-26 at 08:43 +0530, Jagan Teki wrote:
> On Fri, Nov 25, 2016 at 10:07 PM, Champ, Andy <andycham at amazon.co.uk>
> wrote:
> > 
> > Hi all,
> > 
> > 
> > in the table in drivers/mtd/spi/spi_flash_ids.c there is a flag
> > WR_QPP set against Macronix devices (including the ones Dumitru is
> > just adding).
> > 
> > 
> > This is used when programming the devices on a 4-bit bus to select
> > the command to use for programming - either CMD_QUAD_PAGE_PROGRAM
> > (0x32) or CMD_PAGE_PROGRAM (0x2).
> > 
> > 
> > The Macronix devices that I have a spec for do not mention command
> > 0x32. Each of the devices that I have a spec for ( MX25L25635F
> > MX25U51245G MX25V8035F and MX25V1635F ) use command 0x38 instead.
> We need to fix this, till now no Macronix has been tested with QUAD I
> think, please send the suitable fix will review.
> 

Too bad that I don't have any Macronix part with me too.

Thanks
Chin Liang

> thanks!
> --
> Jagan Teki
> Free Software Engineer | www.openedev.com
> U-Boot, Linux | Upstream Maintainer
> Hyderabad, India.
> 
> ________________________________
> 
> Confidentiality Notice.
> This message may contain information that is confidential or
> otherwise protected from disclosure. If you are not the intended
> recipient, you are hereby notified that any use, disclosure,
> dissemination, distribution, or copying of this message, or any
> attachments, is strictly prohibited. If you have received this
> message in error, please advise the sender by reply e-mail, and
> delete the message and any attachments. Thank you.


More information about the U-Boot mailing list