coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
memory.c
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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <baseboard/variants.h>
4 
5 static const struct mb_cfg board_memcfg = {
7 
8  .lp4x_dq_map = {
9  .ddr0 = {
10  .dq0 = { 3, 1, 0, 2, 4, 6, 7, 5, }, /* DDR0_DQ0[7:0] */
11  .dq1 = { 12, 13, 14, 15, 8, 9, 10, 11 }, /* DDR0_DQ1[7:0] */
12  },
13  .ddr1 = {
14  .dq0 = { 0, 7, 1, 6, 2, 4, 3, 5, }, /* DDR1_DQ0[7:0] */
15  .dq1 = { 8, 15, 14, 9, 13, 10, 12, 11 }, /* DDR1_DQ1[7:0] */
16  },
17  .ddr2 = {
18  .dq0 = { 3, 2, 0, 1, 4, 5, 6, 7, }, /* DDR2_DQ0[7:0] */
19  .dq1 = { 12, 13, 15, 14, 8, 9, 10, 11 }, /* DDR2_DQ1[7:0] */
20  },
21  .ddr3 = {
22  .dq0 = { 6, 0, 1, 7, 5, 4, 2, 3, }, /* DDR3_DQ0[7:0] */
23  .dq1 = { 15, 14, 8, 9, 10, 12, 11, 13 }, /* DDR3_DQ1[7:0] */
24  },
25  .ddr4 = {
26  .dq0 = { 5, 0, 1, 3, 4, 2, 7, 6, }, /* DDR4_DQ0[7:0] */
27  .dq1 = { 11, 14, 13, 12, 8, 9, 15, 10 }, /* DDR4_DQ1[7:0] */
28  },
29  .ddr5 = {
30  .dq0 = { 3, 4, 2, 5, 0, 6, 1, 7, }, /* DDR5_DQ0[7:0] */
31  .dq1 = { 13, 12, 11, 10, 14, 15, 9, 8 }, /* DDR5_DQ1[7:0] */
32  },
33  .ddr6 = {
34  .dq0 = { 3, 2, 1, 0, 5, 4, 7, 6, }, /* DDR6_DQ0[7:0] */
35  .dq1 = { 12, 13, 15, 14, 8, 11, 9, 10 }, /* DDR6_DQ1[7:0] */
36  },
37  .ddr7 = {
38  .dq0 = { 3, 4, 2, 5, 1, 0, 7, 6, }, /* DDR7_DQ0[7:0] */
39  .dq1 = { 15, 14, 9, 8, 12, 10, 11, 13 }, /* DDR7_DQ1[7:0] */
40  },
41  },
42 
43  /* DQS CPU<>DRAM map */
44  .lp4x_dqs_map = {
45  .ddr0 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR0_DQS[1:0] */
46  .ddr1 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR1_DQS[1:0] */
47  .ddr2 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR2_DQS[1:0] */
48  .ddr3 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR3_DQS[1:0] */
49  .ddr4 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR4_DQS[1:0] */
50  .ddr5 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR5_DQS[1:0] */
51  .ddr6 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR6_DQS[1:0] */
52  .ddr7 = { .dqs0 = 0, .dqs1 = 1 }, /* DDR7_DQS[1:0] */
53  },
54 
55  .ect = true, /* Enable Early Command Training */
56 };
57 
58 const struct mb_cfg *variant_memory_params(void)
59 {
60  return &board_memcfg;
61 }
@ MEM_TYPE_LP4X
Definition: meminit.h:13
const struct mb_cfg *__weak variant_memory_params(void)
Definition: memory.c:67
static const struct mb_cfg board_memcfg
Definition: memory.c:5
Definition: meminit.h:71
enum mem_type type
Definition: meminit.h:72