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KunYi/lattepanda_mu_memory_parameters.c

Created July 29, 2024 13:45
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memory initial parameters for LattePanda MU
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lattepanda_mu_memory_parameters.c
/* SPDX-License-Identifier: GPL-2.0-only */
#include <baseboard/variants.h>
#include <console/console.h>
#include <soc/romstage.h>
static const struct mb_cfg mu_lp5_mem_config = {
.type = MEM_TYPE_LP5X,
/* DQ byte map */
.lpx_dq_map = {
.ddr0 = {
.dq0 = { 12, 10, 9, 11, 15, 14, 8, 13 },
.dq1 = { 0, 3, 1, 2, 7, 4, 6, 5 },
},
.ddr1 = {
.dq0 = { 0, 2, 1, 3, 4, 7, 5, 6 },
.dq1 = { 13, 11, 9, 10, 8, 15, 12, 14 },
},
.ddr2 = {
.dq0 = { 0, 1, 2, 3, 7, 4, 5, 6 },
.dq1 = { 9, 10, 8, 11, 14, 15, 12, 13 },
},
.ddr3 = {
.dq0 = { 3, 0, 1, 2, 5, 6, 4, 7 },
.dq1 = { 14, 10, 8, 11, 12, 15, 9, 13 },
},
.ddr4 = {
.dq0 = { 3, 0, 2, 1, 6, 7, 5, 4 },
.dq1 = { 12, 14, 15, 13, 9, 11, 8, 10 },
},
.ddr5 = {
.dq0 = { 0, 1, 2, 3, 6, 4, 5, 7 },
.dq1 = { 15, 14, 12, 13, 9, 11, 8, 10 },
},
.ddr6 = {
.dq0 = { 3, 0, 1, 2, 5, 4, 6, 7 },
.dq1 = { 12, 13, 15, 14, 9, 11, 10, 8 },
},
.ddr7 = {
.dq0 = { 3, 0, 2, 1, 5, 4, 6, 7 },
.dq1 = { 10, 8, 15, 14, 9, 12, 13, 11 },
},
},
/* DQS CPU<>DRAM map */
.lpx_dqs_map = {
.ddr0 = { .dqs0 = 1, .dqs1 = 0 },
.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 = true, /* Early Command Training */
.UserBd = BOARD_TYPE_ULT_ULX,
.LpDdrDqDqsReTraining = 1,
.lp5x_config = {
.ccc_config = 0x00,
},
};
const struct mb_cfg *variant_memory_params(void)
{
return &mu_lp5_mem_config;
}
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