diff options
Diffstat (limited to 'board/freescale/t4qds/ddr.c')
| -rw-r--r-- | board/freescale/t4qds/ddr.c | 56 |
1 files changed, 34 insertions, 22 deletions
diff --git a/board/freescale/t4qds/ddr.c b/board/freescale/t4qds/ddr.c index 692616aed..058d62511 100644 --- a/board/freescale/t4qds/ddr.c +++ b/board/freescale/t4qds/ddr.c @@ -19,6 +19,7 @@ DECLARE_GLOBAL_DATA_PTR; struct board_specific_parameters { u32 n_ranks; u32 datarate_mhz_high; + u32 rank_gb; u32 clk_adjust; u32 wrlvl_start; u32 wrlvl_ctl_2; @@ -36,16 +37,19 @@ struct board_specific_parameters { static const struct board_specific_parameters udimm0[] = { /* * memory controller 0 - * num| hi| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T - * ranks| mhz|adjst| start | ctl2 | ctl3 | |delay | + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay | */ - {2, 1350, 5, 7, 0x0809090b, 0x0c0c0d09, 0xff, 2, 0}, - {2, 1666, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, - {2, 2140, 5, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, - {1, 1350, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, - {1, 1700, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, - {1, 1900, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0}, - {1, 2140, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, + {2, 1350, 4, 4, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, + {2, 1350, 0, 5, 7, 0x0709090b, 0x0c0c0d09, 0xff, 2, 0}, + {2, 1666, 4, 4, 8, 0x080a0a0d, 0x0d10100b, 0xff, 2, 0}, + {2, 1666, 0, 5, 7, 0x080a0a0c, 0x0d0d0e0a, 0xff, 2, 0}, + {2, 1900, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0}, + {2, 2140, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0}, + {1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, + {1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, + {1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0}, + {1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, {} }; @@ -61,19 +65,19 @@ static const struct board_specific_parameters *udimms[] = { static const struct board_specific_parameters rdimm0[] = { /* * memory controller 0 - * num| hi| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T - * ranks| mhz|adjst| start | ctl2 | ctl3 | |delay | + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay | */ - {4, 1350, 5, 9, 0x08070605, 0x07080805, 0xff, 2, 0}, - {4, 1666, 5, 8, 0x08070605, 0x07080805, 0xff, 2, 0}, - {4, 2140, 5, 8, 0x08070605, 0x07081805, 0xff, 2, 0}, - {2, 1350, 5, 7, 0x0809090b, 0x0c0c0d09, 0xff, 2, 0}, - {2, 1666, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, - {2, 2140, 5, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, - {1, 1350, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, - {1, 1700, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, - {1, 1900, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0}, - {1, 2140, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, + {4, 1350, 0, 5, 9, 0x08070605, 0x07080805, 0xff, 2, 0}, + {4, 1666, 0, 5, 8, 0x08070605, 0x07080805, 0xff, 2, 0}, + {4, 2140, 0, 5, 8, 0x08070605, 0x07081805, 0xff, 2, 0}, + {2, 1350, 0, 5, 7, 0x0809090b, 0x0c0c0d09, 0xff, 2, 0}, + {2, 1666, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, + {2, 2140, 0, 5, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, + {1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0}, + {1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0}, + {1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0}, + {1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0}, {} }; @@ -113,7 +117,8 @@ void fsl_ddr_board_options(memctl_options_t *popts, */ ddr_freq = get_ddr_freq(0) / 1000000; while (pbsp->datarate_mhz_high) { - if (pbsp->n_ranks == pdimm->n_ranks) { + if (pbsp->n_ranks == pdimm->n_ranks && + (pdimm->rank_density >> 30) >= pbsp->rank_gb) { if (ddr_freq <= pbsp->datarate_mhz_high) { popts->cpo_override = pbsp->cpo; popts->write_data_delay = @@ -146,6 +151,13 @@ void fsl_ddr_board_options(memctl_options_t *popts, panic("DIMM is not supported by this board"); } found: + debug("Found timing match: n_ranks %d, data rate %d, rank_gb %d\n" + "\tclk_adjust %d, wrlvl_start %d, wrlvl_ctrl_2 0x%x, " + "wrlvl_ctrl_3 0x%x\n", + pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb, + pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2, + pbsp->wrlvl_ctl_3); + /* * Factors to consider for half-strength driver enable: * - number of DIMMs installed |