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armv7: ls1021aqds: Set cpo_sample for erratum A-009942

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Set cpo_sample as suggested by the driver
"WARN: pls set popts->cpo_sample = 0x58 in <board>/ddr.c to optimize
cpo".

Signed-off-by: York Sun <york.sun@nxp.com>
CC: Shengzhou Liu <Shengzhou.Liu@nxp.com>
This commit is contained in:
York Sun 2017-01-25 13:26:50 -08:00
parent 5707dfb02e
commit e9866cf759
1 changed files with 3 additions and 0 deletions

3
board/freescale/ls1021aqds/ddr.c
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@ -96,6 +96,9 @@ found:
#else
popts->cswl_override = DDR_CSWL_CS0;
/* optimize cpo for erratum A-009942 */
popts->cpo_sample = 0x58;
/* DHC_EN =1, ODT = 75 Ohm */
popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm);
popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm);