[U-Boot] [PATCH 4/9] Nand mxc_nand add v1.1 controller support

[Fabio Estevam]

Hi John,

--- On Wed, 1/13/10, John Rigby <jcrigby at gmail.com> wrote:

> From: John Rigby <jcrigby at gmail.com>
> Subject: Re: [U-Boot] [PATCH 4/9] Nand mxc_nand add v1.1 controller support
> To: "Fabio Estevam" <fabioestevam at yahoo.com>
> Cc: u-boot at lists.denx.de
> Date: Wednesday, January 13, 2010, 2:50 PM
> Fabio,
> 
> Thanks for the input but there is a problem with your
> suggestion.  The
> kernel driver is in error.  I don't believe the driver
> as is will even
> work on i.MX25.  The register layout is wrong.  I
> can't go into all
> the details here but two quick examples I found are:

I am not talking about kernel driver functionality here. Only NAND controller revision naming.

...

> My understanding is that there really are 4 versions of the
> nfc ip 1,
> 1.1, 2 and 2.1.  The kernel driver is over simplifying
> the issue.

Are these NFC revision numbers for Freescale Power Architecture devices, such as MPC5121?

This is how the Freescale kernel names the NFC for different i.MX devices:

CONFIG_ARCH_MXC_HAS_NFC_V2_1 (For MX25 and MX35)
CONFIG_ARCH_MXC_HAS_NFC_V3_1 (For MX37)
CONFIG_ARCH_MXC_HAS_NFC_V3_2  (For MX51)
CONFIG_ARCH_MXC_HAS_NFC_V1    (For MX27 and MX31)

Regards,

Fabio Estevam