diff options
Diffstat (limited to 'board/freescale/t104xrdb/ddr.h')
-rw-r--r-- | board/freescale/t104xrdb/ddr.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/board/freescale/t104xrdb/ddr.h b/board/freescale/t104xrdb/ddr.h new file mode 100644 index 0000000..9276b59 --- /dev/null +++ b/board/freescale/t104xrdb/ddr.h @@ -0,0 +1,76 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __DDR_H__ +#define __DDR_H__ + +dimm_params_t ddr_raw_timing = { + .n_ranks = 2, + .rank_density = 2147483648u, + .capacity = 4294967296u, + .primary_sdram_width = 64, + .ec_sdram_width = 8, + .registered_dimm = 0, + .mirrored_dimm = 1, + .n_row_addr = 15, + .n_col_addr = 10, + .n_banks_per_sdram_device = 8, + .edc_config = 2, /* ECC */ + .burst_lengths_bitmask = 0x0c, + + .tckmin_x_ps = 1071, + .caslat_x = 0x2fe << 4, /* 5,6,7,8,9,10,11,13 */ + .taa_ps = 13910, + .twr_ps = 15000, + .trcd_ps = 13910, + .trrd_ps = 6000, + .trp_ps = 13910, + .tras_ps = 34000, + .trc_ps = 48910, + .trfc_ps = 260000, + .twtr_ps = 7500, + .trtp_ps = 7500, + .refresh_rate_ps = 7800000, + .tfaw_ps = 35000, +}; + +struct board_specific_parameters { + u32 n_ranks; + u32 datarate_mhz_high; + u32 rank_gb; + u32 clk_adjust; + u32 wrlvl_start; + u32 wrlvl_ctl_2; + u32 wrlvl_ctl_3; + u32 cpo; + u32 write_data_delay; + u32 force_2t; +}; + +/* + * These tables contain all valid speeds we want to override with board + * specific parameters. datarate_mhz_high values need to be in ascending order + * for each n_ranks group. + */ + +static const struct board_specific_parameters udimm0[] = { + /* + * memory controller 0 + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay | + */ + {2, 1066, 4, 8, 4, 0x05070609, 0x08090a08, 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}, + {} +}; + +static const struct board_specific_parameters *udimms[] = { + udimm0, +}; +#endif |