lkml.org 
[lkml]   [2020]   [Jan]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: [EXT] Re: [PATCH v6 0/2] spi: cadence-quadpsi: Add support for the Cadence QSPI controller
Date
Hi Vignesh,

> -----Original Message-----
> From: linux-kernel-owner@vger.kernel.org <linux-kernel-
> owner@vger.kernel.org> On Behalf Of Vignesh Raghavendra
> Sent: Wednesday, January 15, 2020 11:43 AM
> To: Ramuthevar,Vadivel MuruganX
> <vadivel.muruganx.ramuthevar@linux.intel.com>; broonie@kernel.org; linux-
> spi@vger.kernel.org; linux-kernel@vger.kernel.org
> Cc: robh+dt@kernel.org; dan.carpenter@oracle.com;
> cheol.yong.kim@intel.com; qi-ming.wu@intel.com
> Subject: [EXT] Re: [PATCH v6 0/2] spi: cadence-quadpsi: Add support for the
> Cadence QSPI controller
>
> Caution: EXT Email
>
> Hi,
>
> On 12/30/2019 1:11 PM, Ramuthevar,Vadivel MuruganX wrote:
> > Add support for the Cadence QSPI controller. This controller is
> > present in the Intel Lightning Mountain(LGM) SoCs, Altera and TI SoCs.
> > This driver has been tested on the Intel LGM SoCs.
> >
> > This driver does not support generic SPI and also the implementation
> > only supports spi-mem interface to replace the existing driver in
> > mtd/spi-nor/cadence-quadspi.c, the existing driver only support
> > SPI-NOR flash memory.
> >
>
>
>
> I am finally able to get spi-mem based cadence-quaspi driver working on TI
> platforms with DMA and DAC mode. I have also incorporated changes to
> disable DAC and autopolling for your intel SoC:
>
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.co
> m%2Fr-
> vignesh%2Flinux%2Fcommits%2Fqspi&amp;data=02%7C01%7Ckuldeep.singh%
> 40nxp.com%7Ccbd14ac527ae4298a28808d7998219e6%7C686ea1d3bc2b4c6fa
> 92cd99c5c301635%7C0%7C0%7C637146656365872638&amp;sdata=jAR7lmry
> R9fdqF3e4A2dQzF0Q0fYxMvM7sNhx8lvoy0%3D&amp;reserved=0
>
> (Top two patches are of interest)
>
> I have tested both DAC and INDAC mode with s25fl flash and everything seems
> to be fine. Could you re test the driver on your SoC? Feel free to fold it into
> your series if everything works.

Is JFFS2/UBIFS a valid use case here? And were you able to test the same?
I see few issues with Spansion flashes (s25fs) in framework and couldn’t make FS utilities run.
On the other hand, file systems on other flashes (ex: micron, mt25qu) are showing positive results.

Thanks
Kuldeep

>
> Regards
> Vignesh
>
>

\
 
 \ /
  Last update: 2020-01-23 08:25    [W:0.228 / U:0.312 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site