diff options
Diffstat (limited to 'src/mainboard/google/volteer/variants/baseboard')
3 files changed, 63 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/variants/baseboard/Makefile.inc b/src/mainboard/google/volteer/variants/baseboard/Makefile.inc index 30f2b4605a..87a8667bc6 100644 --- a/src/mainboard/google/volteer/variants/baseboard/Makefile.inc +++ b/src/mainboard/google/volteer/variants/baseboard/Makefile.inc @@ -8,6 +8,8 @@ bootblock-y += gpio.c +romstage-y += memory.c + ramstage-y += gpio.c smm-y += gpio.c diff --git a/src/mainboard/google/volteer/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/volteer/variants/baseboard/include/baseboard/variants.h index df4368bb0e..3f8597f9f4 100644 --- a/src/mainboard/google/volteer/variants/baseboard/include/baseboard/variants.h +++ b/src/mainboard/google/volteer/variants/baseboard/include/baseboard/variants.h @@ -10,6 +10,7 @@ #define __BASEBOARD_VARIANTS_H__ #include <soc/gpio.h> +#include <soc/meminit_tgl.h> #include <stddef.h> #include <vendorcode/google/chromeos/chromeos.h> @@ -23,6 +24,7 @@ const struct pad_config *variant_override_gpio_table(size_t *num); const struct cros_gpio *variant_cros_gpios(size_t *num); +const struct mb_lpddr4x_cfg *variant_memory_params(void); int variant_memory_sku(void); #endif /* __BASEBOARD_VARIANTS_H__ */ diff --git a/src/mainboard/google/volteer/variants/baseboard/memory.c b/src/mainboard/google/volteer/variants/baseboard/memory.c new file mode 100644 index 0000000000..111719871d --- /dev/null +++ b/src/mainboard/google/volteer/variants/baseboard/memory.c @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2020 The coreboot project Authors. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include <baseboard/gpio.h> +#include <baseboard/variants.h> +#include <gpio.h> + +static const struct mb_lpddr4x_cfg baseboard_memcfg = { + /* DQ byte map */ + .dq_map = { + { 0, 1, 2, 3, 4, 5, 6, 7, /* Byte 0 */ + 12, 13, 14, 15, 11, 10, 9, 8 }, /* Byte 1 */ + { 7, 2, 6, 3, 5, 1, 4, 0, /* Byte 2 */ + 10, 8, 9, 11, 15, 12, 14, 13 }, /* Byte 3 */ + { 3, 2, 1, 0, 4, 5, 6, 7, /* Byte 4 */ + 12, 13, 14, 15, 11, 10, 9, 8 }, /* Byte 5 */ + { 7, 0, 1, 6, 5, 4, 2, 3, /* Byte 6 */ + 15, 14, 8, 9, 10, 12, 11, 13 }, /* Byte 7 */ + { 3, 2, 1, 0, 4, 5, 6, 7, /* Byte 0 */ + 12, 13, 14, 15, 11, 10, 9, 8 }, /* Byte 1 */ + { 3, 4, 2, 5, 0, 6, 1, 7, /* Byte 2 */ + 13, 12, 11, 10, 14, 15, 9, 8 }, /* Byte 3 */ + { 3, 2, 1, 0, 7, 4, 5, 6, /* Byte 4 */ + 15, 14, 13, 12, 8, 9, 10, 11 }, /* Byte 5 */ + { 3, 4, 2, 5, 1, 0, 7, 6, /* Byte 6 */ + 15, 14, 9, 8, 12, 10, 11, 13 } /* Byte 7 */ + }, + + /* DQS CPU<>DRAM map */ + .dqs_map = { + /* Ch 0 1 2 3 */ + { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, + { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } + }, + + .ect = 0, /* Disable Early Command Training */ +}; + +const struct mb_lpddr4x_cfg *__weak variant_memory_params(void) +{ + return &baseboard_memcfg; +} + +int __weak variant_memory_sku(void) +{ + gpio_t spd_gpios[] = { + GPIO_MEM_CONFIG_0, + GPIO_MEM_CONFIG_1, + GPIO_MEM_CONFIG_2, + GPIO_MEM_CONFIG_3, + }; + + return gpio_base2_value(spd_gpios, ARRAY_SIZE(spd_gpios)); +} |