From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] OMAP4: Set fdt_high for OMAP4 devices to enable booting with Device Tree
Date: Mon, 14 May 2012 09:48:25 -0700 [thread overview]
Message-ID: <20120514164825.GD10008@bill-the-cat> (raw)
In-Reply-To: <1335902708-10788-1-git-send-email-jon-hunter@ti.com>
On Tue, May 01, 2012 at 03:05:08PM -0500, Jon Hunter wrote:
> From: Jon Hunter <jon-hunter@ti.com>
>
> For OMAP4 boards, such as the panda-es, that have 1GB of memory the linux
> kernel fails to locate the device tree blob on boot. The reason being is that
> u-boot is copying the DT blob to the upper part of RAM when booting the kernel
> and the kernel is unable to access the blob. By setting the fdt_high variable
> to either 0xffffffff (to prevent the copy) or 0xac000000 (704MB boundary
> of memory for OMAP4) the kernel is able to locate the DT blob and boot.
>
> Based upon following patch by Dirk Behme set the fdt_high variable to allow
> booting with device tree on OMAP4 boards.
>
> "7e9603e i.mx6q: configs: Add fdt_high and initrd_high variables"
>
> Cc: Sricharan R <r.sricharan@ti.com>
> Cc: Sandeep Paulraj <s-paulraj@ti.com>
> Cc: Tom Rini <trini@ti.com>
> Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Applied to u-boot-ti/master, thanks.
--
Tom
next prev parent reply other threads:[~2012-05-14 16:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-01 20:05 [U-Boot] [PATCH] OMAP4: Set fdt_high for OMAP4 devices to enable booting with Device Tree Jon Hunter
2012-05-14 16:48 ` Tom Rini [this message]
[not found] <1335902462-10724-1-git-send-email-jon-hunter@ti.com>
2012-05-04 11:20 ` R, Sricharan
2012-05-04 14:05 ` Jon Hunter
-- strict thread matches above, loose matches on Subject: below --
2012-05-04 14:01 Jon Hunter
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