From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] am33xx:ddr:Fix config_sdram to work for all DDR
Date: Tue, 26 Mar 2013 10:52:39 -0400 [thread overview]
Message-ID: <20130326145239.GH5711@bill-the-cat> (raw)
In-Reply-To: <1362764458-15979-1-git-send-email-trini@ti.com>
On Fri, Mar 08, 2013 at 07:40:58AM -0000, Tom Rini wrote:
> From: Steve Kipisz <s-kipisz2@ti.com>
>
> The original write to sdram_config is correct for DDR3 but incorrect
> for DDR2 so SPL was hanging. For DDR2, the write to sdram_config
> should be after the writes to ref_ctrl. This was working for DDR3
> because there was a write of 0x2800 to ref_ctrl before a write
> to sdram_config.
>
> Tested on: GP EVM 1.1A (DDR2), GP EVM 1.5A (DDR3),
> Beaglebone A6 (DDR2), Beagleone Blacd A4A (DDR3)
>
> Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
Applied to u-boot-ti/master (and already pulled into u-boot-arm),
thanks!
--
Tom
prev parent reply other threads:[~2013-03-26 14:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-08 17:40 [U-Boot] [PATCH] am33xx:ddr:Fix config_sdram to work for all DDR Tom Rini
2013-03-26 14:52 ` Tom Rini [this message]
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