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powerpc/t104xrdb: Set DDR ODT to 75ohm

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DDR-ODT require cfg_dram_type switch set properly as per DDR type.
T1040RDB, T1042RDB boards have DDR3L type DDR, so cfg_dram_type
should be set to OFF for DDR3L
Update t104xrdb/README for switch setting

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Priyanka Jain 2014-09-05 15:18:31 +05:30 committed by York Sun
parent 07c4eea484
commit 92f7fed4f7
2 changed files with 5 additions and 5 deletions
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6
board/freescale/t104xrdb/README
View file

@ -272,15 +272,15 @@ Switch Settings: (ON is 0, OFF is 1)
===============
NAND boot SW setting:
SW1: 10001000
SW2: 00111001
SW2: 00111011
SW3: 11110001
SPI boot SW setting:
SW1: 00100010
SW2: 10111001
SW2: 10111011
SW3: 11100001
SD boot SW setting:
SW1: 00100000
SW2: 00111001
SW2: 00111011
SW3: 11100001

4
board/freescale/t104xrdb/ddr.c
View file

@ -105,8 +105,8 @@ found:
popts->zq_en = 1;
/* DHC_EN =1, ODT = 75 Ohm */
popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_OFF);
popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_OFF);
popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm);
popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm);
}
phys_size_t initdram(int board_type)