From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH][v3] powerpc/t1040qds: Update DDR initialization related settings
Date: Tue, 21 Jan 2014 14:57:23 -0800 [thread overview]
Message-ID: <52DEFB53.4000909@freescale.com> (raw)
In-Reply-To: <1388728495-2559-1-git-send-email-Priyanka.Jain@freescale.com>
On 01/02/2014 09:54 PM, Priyanka Jain wrote:
> Update following DDR related settings for T1040QDS
> -Correct number of chip selects to two as t1040qds supports
> two Chip selects.
> -Update board_specific_parameters udimm structure with settings
> derived via calibration.
> -Reduced I2C speed to 50KHz as DDR-SPD does not get reliably
> read at 400KHz.
>
> Verified the updated settings to be working fine with dual-ranked
> Micron, MT18KSF51272AZ-1G6 DIMM at data rate 833MT/s, 1333MT/s and
> 1600MT/s.
>
>
> Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
> Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
> ---
> Changes for v3:
> Updated description based on York's comments.
>
> Changes for v2:
> Reduced I2C speed to 50KHz.
>
Applied to u-boot-mpc85xx master branch. Awaiting upstream.
York
prev parent reply other threads:[~2014-01-21 22:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-03 5:54 [U-Boot] [PATCH][v3] powerpc/t1040qds: Update DDR initialization related settings Priyanka Jain
2014-01-21 22:57 ` York Sun [this message]
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