[PATCH] ARM: rpi: add SD card environment support

[Sascha Hauer]

On Tue, Oct 15, 2013 at 01:36:30PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 12:50 Tue 15 Oct     , Sascha Hauer wrote:
> > +static int rpi_env_init(void)
> > +{
> > +	struct stat s;
> > +	const char *diskdev = "/dev/disk0.0";
> > +	int ret;
> > +
> > +	device_detect_by_name("mci0");
> > +
> > +	ret = stat(diskdev, &s);
> > +	if (ret) {
> > +		printf("no %s. using default env\n", diskdev);
> > +		return 0;
> > +	}
> > +
> > +	mkdir("/boot", 0666);
> > +	ret = mount(diskdev, "fat", "/boot");
> > +	if (ret) {
> > +		printf("failed to mount %s\n", diskdev);
> > +		return 0;
> > +	}
> > +
> > +	default_environment_path = "/boot/barebox.env";
> > +
> > +	return 0;
> > +}
> 
> can we drop all of this and do something like this
> 
> set_defaultenv and do not have custom code in the c duplicated everywhere?

That's probably a good idea. Right now it's just not clear to me how
such a code would look like. Omap does something similar to the above,
but additionally checks whether the device to mount is actually the
device the board started from.

Sascha

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