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From: marex@denx.de (Marek Vasut)
To: linux-arm-kernel@lists.infradead.org
Subject: Wrong SPI NOR model detected by mx6sl
Date: Fri, 11 Apr 2014 13:59:26 +0200	[thread overview]
Message-ID: <201404111359.26723.marex@denx.de> (raw)
In-Reply-To: <CAOMZO5CzMyB=boSO+1QeJbw0yYsa1mME-sMVb6yocJAfnErksA@mail.gmail.com>

On Friday, April 11, 2014 at 01:43:50 PM, Fabio Estevam wrote:
> On Thu, Apr 10, 2014 at 9:26 PM, Huang Shijie <shijie8@gmail.com> wrote:
> > On Thu, Apr 10, 2014 at 02:16:49PM -0300, Fabio Estevam wrote:
> >> Hi Marek,
> >> 
> >> On Thu, Apr 10, 2014 at 1:07 PM, Marek Vasut <marex@denx.de> wrote:
> >> > Can you share the JEDEC ID codes that both of the boards actually read
> >> > from the SPI NOR ? You can dump those in the m25p80.c driver . That'd
> >> > be helpful, I suspect some kind of an "offset" or "polarity
> >> > inversion" in the SPI communication causing this.
> >> 
> >> On mx6qsabresd:
> >> 
> >> m25p80 spi0.0: JEDEC id: 0x202016
> >> m25p80 spi0.0: m25p32 (4096 Kbytes)
> >> 
> >> On mx6sl-evk:
> >> 
> >> m25p80 spi0.0: JEDEC id: 0x000000
> > 
> > It seems the kernel can not read out anything from the NOR.
> > Please check the pinctrl or the schematic.
> 
> Yes, there was a pinmux issue in U-boot and I have fixed it.
> 
> SPI NOR is properly detected in U-boot and kernel now.

This means there's also a pinmux issue in kernel, did you fix it in kernel as 
well please ?

Best regards,
Marek Vasut

  reply	other threads:[~2014-04-11 11:59 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-10 15:49 Wrong SPI NOR model detected by mx6sl Fabio Estevam
2014-04-10 16:07 ` Marek Vasut
2014-04-10 17:16   ` Fabio Estevam
2014-04-11  0:26     ` Huang Shijie
2014-04-11  2:09       ` Fabio Estevam
2014-04-11 11:43       ` Fabio Estevam
2014-04-11 11:59         ` Marek Vasut [this message]
2014-04-11 12:11           ` Fabio Estevam
2014-04-11 12:16             ` Marek Vasut

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