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armv8: ls1046ardb: Add RDIMM support

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This adds 2Rx8 RDIMM on LS1046ARDB board. Tested with RDIMM
MTA18ASF2G72PDZ and MTA9ASF1G72PZ.

Signed-off-by: York Sun <york.sun@nxp.com>
This commit is contained in:
York Sun 2018-01-29 09:44:39 -08:00
parent 140ad2d899
commit f513de6c82
2 changed files with 24 additions and 4 deletions
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9
board/freescale/ls1046ardb/ddr.c
View File

@ -29,7 +29,10 @@ void fsl_ddr_board_options(memctl_options_t *popts,
if (!pdimm->n_ranks)
return;
pbsp = udimms[0];
if (popts->registered_dimm_en)
pbsp = rdimms[0];
else
pbsp = udimms[0];
/* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr
* freqency and n_banks specified in board_specific_parameters table.
@ -66,8 +69,6 @@ found:
pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb);
popts->data_bus_width = 0; /* 64-bit data bus */
popts->otf_burst_chop_en = 0;
popts->burst_length = DDR_BL8;
popts->bstopre = 0; /* enable auto precharge */
/*
@ -94,7 +95,7 @@ found:
DDR_CDR2_VREF_TRAIN_EN | DDR_CDR2_VREF_RANGE_2;
/* optimize cpo for erratum A-009942 */
popts->cpo_sample = 0x70;
popts->cpo_sample = 0x61;
}
int fsl_initdram(void)

19
board/freescale/ls1046ardb/ddr.h
View File

@ -41,4 +41,23 @@ static const struct board_specific_parameters *udimms[] = {
udimm0,
};
static const struct board_specific_parameters rdimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl
* ranks| mhz| GB |adjst| start | ctl2 | ctl3
*/
{2, 1666, 0, 0x8, 0x0D, 0x0C0B0A08, 0x0A0B0C08,},
{2, 1900, 0, 0x8, 0x0E, 0x0D0C0B09, 0x0B0C0D09,},
{2, 2300, 0, 0xa, 0x12, 0x100F0D0C, 0x0E0F100C,},
{1, 1666, 0, 0x8, 0x0D, 0x0C0B0A08, 0x0A0B0C08,},
{1, 1900, 0, 0x8, 0x0E, 0x0D0C0B09, 0x0B0C0D09,},
{1, 2300, 0, 0xa, 0x12, 0x100F0D0C, 0x0E0F100C,},
{}
};
static const struct board_specific_parameters *rdimms[] = {
rdimm0,
};
#endif