From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?windows-1252?Q?Vincent_Stehl=E9?= <vincent.stehle@laposte.net>
Date: Sat, 30 May 2015 19:24:06 +0200
Subject: [U-Boot] Booting Wandboard through USB
In-Reply-To: <20150530164921.GB1728@bill-the-cat>
References: <55683580.8060803@bergerie> <20150530164921.GB1728@bill-the-cat>
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To: u-boot@lists.denx.de

On 05/30/2015 06:49 PM, Tom Rini wrote:
..
> The second would be trying to "fake" things such that for 
> imx_usb_loader you can pass both SPL and u-boot.img, and SPL is 
> run, inits memory and just exists and then u-boot.img is loaded
> and run, similar to how with the non-SPL case you can use the
> loader to pass in u-boot.imx as well as a kernel, ramdisk, etc,
> into DDR.

I wonder if we could use the i.MX6 ROM "plugin"[1] mechanism with u-boot
SPL, to download it through USB, have it configure the DDR and return to
the ROM, in a way that would allow us to resume downloading the second
stage u-boot through USB...

Best regards,

V.

[1] Chapter "8.8 Plugin Image" of the i.MX6D/Q Reference Manual.