From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH][v2] powerpc/t104xrdb: Update DDR initialization related settings
Date: Fri, 7 Mar 2014 15:05:56 -0800 [thread overview]
Message-ID: <531A50D4.1030902@freescale.com> (raw)
In-Reply-To: <1393387717-12345-1-git-send-email-Priyanka.Jain@freescale.com>
On 02/25/2014 08:08 PM, Priyanka Jain wrote:
> Update following DDR related settings for T1040RDB, T1042RDB_PI
> -Correct number of chip selects to two as t1040 supports
> two Chip selects.
> -Update board_specific_parameters udimm structure with settings
> derived via calibration.
> -Update ddr_raw_timing sructure corresponding to DIMM.
> -Set ODT to off. Typically on FSL board, ODT is set to 75 ohm,
> but on T104xRDB, on setting this , DDR instability is observed.
> Board-level debugging is in progress.
>
> Verified the updated settings to be working fine with dual-ranked
> Micron, MT18KSF51272AZ-1G6 DIMM at data rate 1600MT/s.
>
> Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
> Signed-off-by: York Sun <yorksun@freescale.com>
> ---
> Changes for v2:
> Udpated description related to ODT off, Removed
> cpo, write_data_delay, force_2t parameters as they
> are not longer used.
Applied to u-boot-mpc85xx/master. Thanks.
York
prev parent reply other threads:[~2014-03-07 23:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-26 4:08 [U-Boot] [PATCH][v2] powerpc/t104xrdb: Update DDR initialization related settings Priyanka Jain
2014-03-07 23:05 ` York Sun [this message]
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