On 03/20/2016 08:03 PM, Shengzhou Liu wrote:

Optimize DDR timing for good margins to support new Transcend and Apacer DDR4 UDIMM besides current Micron UDIMM.

Verified 1866MT/s and 2133MT/s with following UDIMM on LS2080ARDB.

• Micron UDIMM: MTA18ASF1G72AZ-2G1A1Z
• Apacer UDIMM: 78.C1GM4.AF10B
• Transcend UDIMM: TS1GLH72V1H

Signed-off-by: Shengzhou Liu Shengzhou.Liu@nxp.com

board/freescale/ls2080ardb/ddr.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/board/freescale/ls2080ardb/ddr.h b/board/freescale/ls2080ardb/ddr.h index bda9d4a..7274778 100644 --- a/board/freescale/ls2080ardb/ddr.h +++ b/board/freescale/ls2080ardb/ddr.h @@ -30,8 +30,8 @@ static const struct board_specific_parameters udimm0[] = { */ {2, 1350, 0, 4, 6, 0x0708090B, 0x0C0D0E09,}, {2, 1666, 0, 4, 8, 0x08090B0D, 0x0E10100C,},

• {2, 1900, 0, 4, 8, 0x090A0C0E, 0x1012120D,},
• {2, 2300, 0, 4, 9, 0x0A0B0C10, 0x1114140E,},

• {2, 1900, 0, 6, 0xA, 0x0B0C0E11, 0x1214140F,},
• {2, 2300, 0, 6, 0xB, 0x0C0D0F12, 0x14161610,}, {}

};

Please test lower speeds as well, if new DIMMs are to be supported.

York