[U-Boot] [PATCH v2 09/14] fastboot: Implement NAND backend

Maxime Ripard maxime.ripard at free-electrons.com
Wed Oct 21 16:57:04 CEST 2015


Hi Tom,

On Tue, Oct 20, 2015 at 03:46:36PM -0400, Tom Rini wrote:
> On Thu, Oct 15, 2015 at 02:34:17PM +0200, Maxime Ripard wrote:
> 
> > So far the fastboot code was only supporting MMC-backed devices for its
> > flashing operations (flash and erase).
> > 
> > Add a storage backend for NAND-backed devices.
> > 
> > Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> 
> This is mutually exclusive with MMC support, right?  If so, it's not
> quite written that way in the #ifdef's so I think it need to be down in
> say:
> 
> > @@ -569,6 +572,11 @@ static void cb_flash(struct usb_ep *ep, struct usb_request *req)
> >  			   (void *)CONFIG_FASTBOOT_BUF_ADDR,
> >  			   download_bytes, response);
> >  #endif
> > +#ifdef CONFIG_FASTBOOT_FLASH_NAND_DEV
> > +	fb_nand_flash_write(cmd, fastboot_flash_session_id,
> > +			    (void *)CONFIG_FASTBOOT_BUF_ADDR,
> > +			    download_bytes, response);
> > +#endif
> 
> With #elif/#error "Fastboot enabled but without any backing store
> support" and we drop the #error once this is Kconfig'zied.

We said in the precedent version that the end goal would be to support
both at the same time, if relevant.

I was willing to treat that as a followup patch, but I guess I should
do as you suggest for the time being.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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