diff options
Diffstat (limited to 'src/mainboard/google/hatch/variants/palkia/memory.c')
-rw-r--r-- | src/mainboard/google/hatch/variants/palkia/memory.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/mainboard/google/hatch/variants/palkia/memory.c b/src/mainboard/google/hatch/variants/palkia/memory.c new file mode 100644 index 0000000000..1a4bf383e0 --- /dev/null +++ b/src/mainboard/google/hatch/variants/palkia/memory.c @@ -0,0 +1,64 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2020 The coreboot project Palkia. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include <baseboard/variants.h> +#include <baseboard/gpio.h> +#include <boardid.h> +#include <gpio.h> +#include <soc/cnl_memcfg_init.h> +#include <string.h> +#include <variant/gpio.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} + }, + + /* Palkia uses 200, 80.6 and 162 rcomp resistors */ + .rcomp_resistor = {200, 81, 162}, + + /* Palkia 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)); +} |