diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/poppy/variants/atlas/memory.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/mainboard/google/poppy/variants/atlas/memory.c b/src/mainboard/google/poppy/variants/atlas/memory.c index 0b34e72830..022b733398 100644 --- a/src/mainboard/google/poppy/variants/atlas/memory.c +++ b/src/mainboard/google/poppy/variants/atlas/memory.c @@ -13,8 +13,11 @@ * GNU General Public License for more details. */ +#include <assert.h> #include <baseboard/variants.h> +#define SAMSUNG_C_DIE_2G 10 +#define SAMSUNG_C_DIE_4G 11 /* DQ byte map */ static const u8 dq_map[][12] = { { 0x0F, 0xF0, 0x00, 0xF0, 0x0F, 0xF0, @@ -34,9 +37,12 @@ static const u16 rcomp_resistor[] = { 200, 81, 162 }; /* Rcomp target */ static const u16 rcomp_target[] = { 100, 40, 40, 23, 40 }; +static const u16 rcomp_target_samsung_c_die[] = { 100, 40, 35, 18, 40 }; void variant_memory_params(struct memory_params *p) { + int spd_index; + p->type = MEMORY_LPDDR3; p->dq_map = dq_map; p->dq_map_size = sizeof(dq_map); @@ -44,6 +50,11 @@ void variant_memory_params(struct memory_params *p) p->dqs_map_size = sizeof(dqs_map); p->rcomp_resistor = rcomp_resistor; p->rcomp_resistor_size = sizeof(rcomp_resistor); - p->rcomp_target = rcomp_target; + spd_index = variant_memory_sku(); + assert(spd_index >= 0); + if (spd_index == SAMSUNG_C_DIE_2G || spd_index == SAMSUNG_C_DIE_4G) + p->rcomp_target = rcomp_target_samsung_c_die; + else + p->rcomp_target = rcomp_target; p->rcomp_target_size = sizeof(rcomp_target); } |