[PATCH 06/11] omap4: add support for booting an omap4 from usb.

[Sascha Hauer]

On Sat, Oct 06, 2012 at 12:33:08AM +0200, vj wrote:
> 
> Signed-off-by: vj <vicencb at gmail.com>

[...]

>  
>  /*
>   *  The following several lines are taken from U-Boot to support
> @@ -457,6 +458,21 @@ static int watchdog_init(void)
>  }
>  late_initcall(watchdog_init);
>  
> +#ifdef CONFIG_OMAP4_USBBOOT
> +static int omap4_usbboot_init(void)
> +{
> +	omap4_usbboot_open();
> +	omap4_usbboot_puts("USB communications initialized\n");
> +	return 0;
> +}
> +core_initcall(omap4_usbboot_init);
> +#else

I remember a hunk in a previous patch which detects whether we actually
are booting from USB. We could protect the code above with a
if (booting_from_usb) instead of deciding it at compile time.


> +/*
> + * omap4 usbboot interfaces with the omap4 ROM to reuse the USB port
> + * used for booting.
> + * The ROM code uses interrupts for the transfers, so do not modify the
> + * interrupt vectors.
> + */
>  static int omap_vector_init(void)
>  {

same here.

Sascha

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