From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <ijc@hellion.org.uk>
Date: Sun, 28 Dec 2014 10:09:49 +0000
Subject: [U-Boot] [PATCH V2] add README.distro file
In-Reply-To: <1419281200-6634-1-git-send-email-swarren@wwwdotorg.org>
References: <1419281200-6634-1-git-send-email-swarren@wwwdotorg.org>
Message-ID: <1419761389.13595.47.camel@hellion.org.uk>
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To: u-boot@lists.denx.de

On Mon, 2014-12-22 at 13:46 -0700, Stephen Warren wrote:
> [...]
> +
> +The U-Boot "syslinux" and "pxe boot" commands require a number of environment
> +variables be set. Default values for these variables are often hard-coded into
> +CONFIG_EXTRA_ENV_SETTINGS in the board's U-Boot configuration file, so that
> +the user doesn't have to configure them.
> +
> +fdt_addr:
> +
> +  Optional. If specified a dtb to boot the system must be available at the
> +  given address.
> +
> +fdt_addr_r:
> +
> +  Mandatory.

Isn't this one only mandatory if ${fdt_addr} is not given?

Ian.