From mboxrd@z Thu Jan  1 00:00:00 1970
From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue, 7 May 2019 14:52:10 +0200
Subject: [U-Boot] [PATCH 00/12] Enable returning back to BootROM from
	spear SPL
In-Reply-To: <5cb343aa-9981-6d36-f9fc-98c0a16209c9@denx.de>
References: <20190507121854.18575-1-miquel.raynal@bootlin.com>
 <5cb343aa-9981-6d36-f9fc-98c0a16209c9@denx.de>
Message-ID: <20190507145210.7c1513a9@xps13>
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To: u-boot@lists.denx.de

Hi Stefan,

Stefan Roese <sr@denx.de> wrote on Tue, 7 May 2019 14:50:02 +0200:

> On 07.05.19 14:18, Miquel Raynal wrote:
> > Spear machines currently have only the possibility to boot from NOR
> > while an interesting alternative exist: booting from USB. For this,
> > the BootROM will enumerate an USB device and wait for a RAM driver
> > (likely, the SPL). It will load the driver in SRAM and jump to
> > it. Once the initialization done, the SPL must return back into the
> > BootROM so that another enumeration occurs allowing the user to upload
> > the full Bootloader (eg. U-Boot). The BootROM will finally load the
> > file in RAM and jump into it.
> >=20
> > Most of the patches are cleanups and preparation work to ease the
> > reading of the main assembly file.
> >=20
> > The last patch is a fallback on USB Boot if the NOR is empty or
> > corrupted. Of course if USB boot has not been enabled, nothing will
> > happen.
> >=20
> > Tested on a custom board featuring a SPEAr600.
> >=20
> > Hope this change will find users! =20
>=20
> Many thanks for working on this and improving the neglected SPEAr
> U-Boot port. It's quite some time since I worked on this platform
> and I still do have a x600 board hidden somewhere. Frankly, if
> there is no real need I will not dig this board up to update and
> test a new U-Boot version on it (sorry).

Absolutely no problem, thanks for reviewing!

Miqu=C3=A8l