[U-Boot] [RFC PATCH 4/4 v3] mtd: sf: Add CONFIG_SPI_N25Q256A_RESET for software-reset

[Pavel Machek <pavel@denx.de>]

On Thu 2014-10-02 00:34:48, Jagan Teki wrote:
> On 2 October 2014 00:27, Stefan Roese <sr@denx.de> wrote:
> > On 01.10.2014 20:25, Marek Vasut wrote:
> >>
> >> On Wednesday, October 01, 2014 at 05:13:11 PM, Stefan Roese wrote:
> >>>
> >>> This is needed for the SoCFPGA booting from SPI NOR flash
> >>> e.g. (N25Q256A). With these changes, the SoCrates can boot and
> >>> re-boot (reset) from SPI NOR flash without any problems.
> >>
> >>
> >> Seems like your SPI NOR reset logic is buggy. Does any of [1] apply to
> >> your
> >> board please?
> >>
> >> [1] http://www.rocketboards.org/foswiki/Documentation/SocBoardQspiBoot
> >
> >
> > Yes. This seems to be that case. But I can't change it right now. So this
> > "solution" with the soft-reset is better than nothing.
> 
> If this is some think that must require, any possibility to this
> resetting prior to u-boot?
> like preloader or in first stage boot loader or something.

u-boot-spl 2013.01/altera set it up like this for us; and mainline
u-boot-spl does not work on socfpga... that's why we need to do it
here, and that's why you don't see it on your board.

Best regards,
									Pavel
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