diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/taeko/memory.c | 74 |
1 files changed, 73 insertions, 1 deletions
diff --git a/src/mainboard/google/brya/variants/taeko/memory.c b/src/mainboard/google/brya/variants/taeko/memory.c index e9e8533931..72a6be2964 100644 --- a/src/mainboard/google/brya/variants/taeko/memory.c +++ b/src/mainboard/google/brya/variants/taeko/memory.c @@ -2,7 +2,10 @@ #include <baseboard/gpio.h> #include <baseboard/variants.h> +#include <console/console.h> #include <gpio.h> +#include <memory_info.h> +#include <string.h> static const struct mb_cfg baseboard_memcfg = { .type = MEM_TYPE_LP4X, @@ -66,9 +69,78 @@ static const struct mb_cfg baseboard_memcfg = { .ect = 1, /* Enable Early Command Training */ }; +static const struct mb_cfg hynix_memconfig = { + .type = MEM_TYPE_LP4X, + + .rcomp = { + /* Baseboard uses only 100ohm Rcomp resistors */ + .resistor = 100, + + /* Baseboard Rcomp target values */ + .targets = {40, 30, 30, 30, 30}, + }, + + /* DQ byte map */ + .lpx_dq_map = { + .ddr0 = { + .dq0 = { 9, 11, 8, 10, 12, 14, 13, 15, }, + .dq1 = { 4, 7, 6, 5, 2, 3, 0, 1, }, + }, + .ddr1 = { + .dq0 = { 15, 12, 14, 13, 9, 10, 11, 8, }, + .dq1 = { 0, 1, 3, 2, 7, 5, 4, 6, }, + }, + .ddr2 = { + .dq0 = { 2, 3, 1, 0, 6, 7, 5, 4, }, + .dq1 = { 15, 9, 14, 8, 11, 10, 13, 12, }, + }, + .ddr3 = { + .dq0 = { 3, 1, 2, 0, 4, 6, 7, 5, }, + .dq1 = { 13, 15, 14, 12, 11, 9, 8, 10, }, + }, + .ddr4 = { + .dq0 = { 13, 12, 14, 15, 9, 8, 10, 11, }, + .dq1 = { 4, 7, 5, 6, 1, 2, 0, 3, }, + }, + .ddr5 = { + .dq0 = { 5, 0, 6, 4, 3, 1, 7, 2, }, + .dq1 = { 11, 9, 10, 8, 15, 12, 14, 13, }, + }, + .ddr6 = { + .dq0 = { 15, 12, 14, 13, 10, 9, 11, 8, }, + .dq1 = { 0, 1, 2, 3, 5, 6, 4, 7, }, + }, + .ddr7 = { + .dq0 = { 0, 3, 1, 2, 4, 5, 6, 7, }, + .dq1 = { 11, 8, 13, 14, 9, 12, 15, 10, }, + }, + }, + + /* DQS CPU<>DRAM map */ + .lpx_dqs_map = { + .ddr0 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr1 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr2 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr3 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr4 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr5 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr6 = { .dqs0 = 0, .dqs1 = 1 }, + .ddr7 = { .dqs0 = 0, .dqs1 = 1 }, + }, + + .ect = 1, /* Enable Early Command Training */ + + .cs_pi_start_high_in_ect = 1, +}; const struct mb_cfg *variant_memory_params(void) { - return &baseboard_memcfg; + const char *dram_part_num = mainboard_get_dram_part_num(); + if (strcmp(dram_part_num, "H54G46CYRBX267N") == 0) { + printk(BIOS_INFO, "Enable cs_pi_start_high_in_ect for Hynix DRAM part\n"); + return &hynix_memconfig; + } else { + return &baseboard_memcfg; + } } int variant_memory_sku(void) |