[POWERPC] add U-Boot bootcount driver.

[Vitaly Bordug]

В Thu, 17 Dec 2009 10:34:34 +0100
Wolfram Sang <w.sang at pengutronix.de> пишет:

> On Wed, Dec 16, 2009 at 02:47:30AM +0300, Vitaly Bordug wrote:
> > 
> > From: Heiko Schocher <hs at denx.de>
> > 
> > This driver provides (read/write) access to the
> > U-Boot bootcounter via PROC FS or sysFS.
> > 
> > in u-boot, it uses a 8 byte mem area (it must hold the value over a
> > soft reset of course), for storing a bootcounter (it counts many
> > soft resets are done, on hard reset it starts with 0). If the
> > bootcountvalue exceeds the value in the env variable "bootlimit",
> > and alternative bootcmd stored in the env variable "altbootcmd" is
> > run.
> 
> Hmm, both in my inbox and in patchwork, the patch seems line-wrapped.
> Also, there are a few printk without loglevel. As probe has access to
> a device structure, dev_* should be a nice option here.
> 
OK, makes sense.

-Vitaly
> Regards,
> 
>    Wolfram
> 
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