diff options
| -rw-r--r-- | src/mainboard/google/hatch/variants/helios/Makefile.inc | 10 | ||||
| -rw-r--r-- | src/mainboard/google/hatch/variants/helios/memory.c | 68 |
2 files changed, 72 insertions, 6 deletions
diff --git a/src/mainboard/google/hatch/variants/helios/Makefile.inc b/src/mainboard/google/hatch/variants/helios/Makefile.inc index cf6ee5ac97..ddafa3297f 100644 --- a/src/mainboard/google/hatch/variants/helios/Makefile.inc +++ b/src/mainboard/google/hatch/variants/helios/Makefile.inc @@ -12,9 +12,7 @@ ## GNU General Public License for more details. ## -SPD_SOURCES = 4G_2400 # 0b000 -SPD_SOURCES += empty_ddr4 # 0b001 -SPD_SOURCES += 8G_2400 # 0b010 -SPD_SOURCES += 8G_2666 # 0b011 -SPD_SOURCES += 16G_2400 # 0b100 -SPD_SOURCES += 16G_2666 # 0b101 +SPD_SOURCES = LP_8G_2133 # 0b0000 +SPD_SOURCES += LP_16G_2133 # 0b0001 + +romstage-y += memory.c diff --git a/src/mainboard/google/hatch/variants/helios/memory.c b/src/mainboard/google/hatch/variants/helios/memory.c new file mode 100644 index 0000000000..64b4cac8d0 --- /dev/null +++ b/src/mainboard/google/hatch/variants/helios/memory.c @@ -0,0 +1,68 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2018 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <baseboard/variants.h> +#include <baseboard/gpio.h> +#include <soc/cnl_memcfg_init.h> +#include <string.h> + +static const struct cnl_mb_cfg baseboard_memcfg = { + /* + * The dqs_map arrays map the SoC pins to the lpddr3 pins + * for both channels. + * + * "The index of the array is CPU byte number, the values are DRAM byte + * numbers." - doc #573387 + * + * the index = pin number on SoC + * the value = pin number on lpddr3 part + */ + .dqs_map[DDR_CH0] = {4, 7, 5, 6, 0, 3, 2, 1}, + .dqs_map[DDR_CH1] = {0, 3, 2, 1, 4, 7, 6, 5}, + + .dq_map[DDR_CH0] = { + {0xf0, 0xf}, + {0x0, 0xf}, + {0xf0, 0xf}, + {0xf0, 0x0}, + {0xff, 0x0}, + {0xff, 0x0} + }, + .dq_map[DDR_CH1] = { + {0xf, 0xf0}, + {0x0, 0xf0}, + {0xf, 0xf0}, + {0xf, 0x0}, + {0xff, 0x0}, + {0xff, 0x0} + }, + + /* Helios uses 200, 80.6 and 162 rcomp resistors */ + .rcomp_resistor = {200, 81, 162}, + + /* Helios Rcomp target values */ + .rcomp_targets = {100, 40, 40, 23, 40}, + + /* Set CaVref config to 0 for LPDDR3 */ + .vref_ca_config = 0, + + /* Disable Early Command Training */ + .ect = 0, +}; + +void variant_memory_params(struct cnl_mb_cfg *bcfg) +{ + memcpy(bcfg, &baseboard_memcfg, sizeof(baseboard_memcfg)); +} |