soc/intel/tigerlake: Reorganize memory initialization support

This change reorganizes memory initialization code for LPDDR4x on
TGL to allow sharing of code when adding support for other memory
types. In follow-up changes, support for DDR4 will be added.

1. It adds configuration for memory topology which is currently only
MEMORY_DOWN, however DDR4 requires more topologies to be
supported.
2. spd_info structure is organized to allow mixed topologies as well.
3. DQ/DQS maps are organized to reflect hardware configuration.

TEST=Verified that volteer still boots and memory initialization is
successful.

Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ib625f2ab30a6e1362a310d9abb3f2051f85c3013
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39865
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>

3 files changed, 85 insertions, 43 deletions

diff --git a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/variants.h
index b7b69f29fd..b38daff853 100644
--- a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/variants.h
@@ -28,6 +28,6 @@ const struct pad_config *variant_early_gpio_table(size_t *num);
 const struct cros_gpio *variant_cros_gpios(size_t *num);
 
 size_t variant_memory_sku(void);
-const struct mb_lpddr4x_cfg *variant_memory_params(void);
+const struct lpddr4x_cfg *variant_memory_params(void);
 
 #endif /*__BASEBOARD_VARIANTS_H__ */
diff --git a/src/mainboard/intel/tglrvp/variants/tglrvp_up3/memory.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/memory.c
index 1cb0df52df..ad2f24f9c1 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up3/memory.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/memory.c
@@ -21,38 +21,59 @@ size_t __weak variant_memory_sku(void)
 	return 0;
 }
 
-static const struct mb_lpddr4x_cfg mem_config = {
+static const struct lpddr4x_cfg mem_config = {
 	/* DQ byte map */
 	.dq_map = {
-	{  0,  1,  6,  7,  3,  2,  5,  4,    /* Byte 0 */
-	  15,  8,  9, 14, 12, 11, 10, 13 },  /* Byte 1 */
-	{ 11, 12,  8, 15,  9, 14, 10, 13,    /* Byte 2 */
-	   3,  4,  7,  0,  6,  1,  5,  2 },  /* Byte 3 */
-	{  4,  5,  3,  2,  7,  1,  0,  6,    /*	Byte 4 */
-	  11, 10, 12, 13,  8,  9, 14, 15 },  /* Byte 5 */
-	{ 12, 11,  8, 13, 14, 15,  9, 10,    /* Byte 6 */
-	   4,  7,  3,  2,  1,  6,  0,  5 },  /* Byte 7 */
-	{ 11, 10,  9,  8, 12, 13, 15, 14,    /* Byte 0 */
-	   4,  5,  6,  7,  3,  2,  0,  1 },  /* Byte 1 */
-	{  0,  7,  1,  6,  3,  5,  2,  4,    /* Byte 2 */
-	   9,  8, 10, 11, 14, 15, 13, 12 },  /* Byte 3 */
-	{  4,  5,  6,  1,  3,  2,  7,  0,    /* Byte 4 */
-	  10, 13, 12, 11, 14,  9, 15,  8 },  /* Byte 5 */
-	{ 10, 12,  9, 15,  8, 11, 13, 14,    /* Byte 6 */
-	   3,  4,  1,  2,  6,  0,  5,  7 }   /* Byte 7 */
+		[0] = {
+			{  0,  1,  6,  7,  3,  2,  5,  4, }, /* DDR0_DQ0[7:0] */
+			{ 15,  8,  9, 14, 12, 11, 10, 13, }, /* DDR1_DQ1[7:0] */
+		},
+		[1] = {
+			{ 11, 12,  8, 15,  9, 14, 10, 13, }, /* DDR1_DQ0[7:0] */
+			{  3,  4,  7,  0,  6,  1,  5,  2, }, /* DDR1_DQ1[7:0] */
+		},
+		[2] = {
+			{  4,  5,  3,  2,  7,  1,  0,  6, }, /* DDR2_DQ0[7:0] */
+			{ 11, 10, 12, 13,  8,  9, 14, 15, }, /* DDR2_DQ1[7:0] */
+		},
+		[3] = {
+			{ 12, 11,  8, 13, 14, 15,  9, 10, }, /* DDR3_DQ0[7:0] */
+			{  4,  7,  3,  2,  1,  6,  0,  5, }, /* DDR3_DQ1[7:0] */
+		},
+		[4] = {
+			{ 11, 10,  9,  8, 12, 13, 15, 14, }, /* DDR4_DQ0[7:0] */
+			{  4,  5,  6,  7,  3,  2,  0,  1, }, /* DDR4_DQ1[7:0] */
+		},
+		[5] = {
+			{ 0,  7,  1,  6,  3,  5,  2,  4, }, /* DDR5_DQ0[7:0] */
+			{ 9,  8, 10, 11, 14, 15, 13, 12, }, /* DDR5_DQ1[7:0] */
+		},
+		[6] = {
+			{  4,  5,  6,  1,  3,  2,  7,  0, }, /* DDR6_DQ0[7:0] */
+			{ 10, 13, 12, 11, 14,  9, 15,  8, }, /* DDR6_DQ1[7:0] */
+		},
+		[7] = {
+			{ 10, 12,  9, 15,  8, 11, 13, 14, }, /* DDR7_DQ0[7:0] */
+			{  3,  4,  1,  2,  6,  0,  5,  7, }, /* DDR7_DQ1[7:0] */
+		},
 	},
 
 	/* DQS CPU<>DRAM map */
 	.dqs_map = {
-	/* Ch 0     1         2         3  */
-	{ 0, 1 }, { 1, 0 }, { 0, 1 }, { 1, 0 },
-	{ 1, 0 }, { 0, 1 }, { 0, 1 }, { 1, 0 }
+		[0] = { 0, 1 }, /* DDR0_DQS[1:0] */
+		[1] = { 1, 0 }, /* DDR1_DQS[1:0] */
+		[2] = { 0, 1 }, /* DDR2_DQS[1:0] */
+		[3] = { 1, 0 }, /* DDR3_DQS[1:0] */
+		[4] = { 1, 0 }, /* DDR4_DQS[1:0] */
+		[5] = { 0, 1 }, /* DDR5_DQS[1:0] */
+		[6] = { 0, 1 }, /* DDR6_DQS[1:0] */
+		[7] = { 1, 0 }, /* DDR7_DQS[1:0] */
 	},
 
 	.ect = 1, /* Early Command Training */
 };
 
-const struct mb_lpddr4x_cfg *__weak variant_memory_params(void)
+const struct lpddr4x_cfg *__weak variant_memory_params(void)
 {
 	return &mem_config;
 }
diff --git a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/memory.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/memory.c
index 651550c753..929d0cca89 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/memory.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/memory.c
@@ -21,38 +21,59 @@ size_t __weak variant_memory_sku(void)
 	return 0;
 }
 
-static const struct mb_lpddr4x_cfg mem_config = {
+static const struct lpddr4x_cfg mem_config = {
 	/* DQ byte map */
 	.dq_map = {
-	{  8,  9, 12,  11, 13, 15,  10, 14,      /* Byte 0 */
-	   4,  6,  0,   2,  5,  7,   1,  3 },    /* Byte 1 */
-	{  2,  3,  0,   6,  1,  7,   5,  4,      /* Byte 2 */
-	  15, 14, 13,   8, 12, 11,   9, 10 },    /* Byte 3 */
-	{  1,  0,  3,   2,  5,  4,   7,  6,      /* Byte 4 */
-	  14, 15, 12,  13,  8, 10,   9, 11 },    /* Byte 5 */
-	{  8, 10, 11,   9, 15, 12,  14, 13,      /* Byte 6 */
-	   4,  7,  6,   5,  2,  0,  1,  3 },     /* Byte 7 */
-	{  8,  9, 10,  11, 13, 12,  15, 14,      /* Byte 0 */
-	   7,  6,  4,   5,  0,  2,   1,  3 },    /* Byte 1 */
-	{  1,  3,  0,   2,  6,  4,   5,  7,      /* Byte 2 */
-	  14, 15, 10,  12,  8, 13,  11,  9 },    /* Byte 3 */
-	{  1,  0,  2,   4,  5,  3,   7,  6,      /* Byte 4 */
-	  12, 14, 15,  13,  9,  10,  8, 11 },    /* Byte 5 */
-	{ 11,  9,  8,  13, 12,  14, 15, 10,      /* Byte 6 */
-	   4,  7,  5,   1,  2,   6,  3,  0 }     /* Byte 7 */
+		[0] = {
+			{ 8,  9, 12,  11, 13, 15,  10, 14, }, /* DDR0_DQ0[7:0] */
+			{ 4,  6,  0,   2,  5,  7,   1,  3, }, /* DDR0_DQ1[7:0] */
+		},
+		[1] = {
+			{  2,  3,  0,   6,  1,  7,   5,  4, },  /* DDR1_DQ0[7:0] */
+			{ 15, 14, 13,   8, 12, 11,   9, 10, },  /* DDR1_DQ1[7:0] */
+		},
+		[2] = {
+			{  1,  0,  3,   2,  5,  4,   7,  6, }, /* DDR2_DQ0[7:0] */
+			{ 14, 15, 12,  13,  8, 10,   9, 11, }, /* DDR2_DQ1[7:0] */
+		},
+		[3] = {
+			{  8, 10, 11,   9, 15, 12,  14, 13, }, /* DDR3_DQ0[7:0] */
+			{  4,  7,  6,   5,  2,  0,  1,  3, },  /* DDR3_DQ1[7:0] */
+		},
+		[4] = {
+			{  8,  9, 10,  11, 13, 12,  15, 14, }, /* DDR4_DQ0[7:0] */
+			{  7,  6,  4,   5,  0,  2,   1,  3, }, /* DDR4_DQ1[7:0] */
+		},
+		[5] = {
+			{  1,  3,  0,   2,  6,  4,   5,  7, }, /* DDR5_DQ0[7:0] */
+			{ 14, 15, 10,  12,  8, 13,  11,  9, }, /* DDR5_DQ1[7:0] */
+		},
+		[6] = {
+			{  1,  0,  2,   4,  5,  3,   7,  6, }, /* DDR6_DQ0[7:0] */
+			{ 12, 14, 15,  13,  9,  10,  8, 11, }, /* DDR6_DQ1[7:0] */
+		},
+		[7] = {
+			{ 11,  9,  8,  13, 12,  14, 15, 10, }, /* DDR7_DQ0[7:0] */
+			{  4,  7,  5,   1,  2,   6,  3,  0, }, /* DDR7_DQ1[7:0] */
+		},
 	},
 
 	/* DQS CPU<>DRAM map */
 	.dqs_map = {
-	/* Ch 0     1         2         3  */
-	{ 1, 0 }, { 0, 1 }, { 0, 1 }, { 1, 0 },
-	{ 1, 0 }, { 0, 1 }, { 0, 1 }, { 1, 0 }
+		[0] = { 1, 0 }, /* DDR0_DQS[1:0] */
+		[1] = { 0, 1 }, /* DDR1_DQS[1:0] */
+		[2] = { 0, 1 }, /* DDR2_DQS[1:0] */
+		[3] = { 1, 0 }, /* DDR3_DQS[1:0] */
+		[4] = { 1, 0 }, /* DDR4_DQS[1:0] */
+		[5] = { 0, 1 }, /* DDR5_DQS[1:0] */
+		[6] = { 0, 1 }, /* DDR6_DQS[1:0] */
+		[7] = { 1, 0 }, /* DDR7_DQS[1:0] */
 	},
 
 	.ect = 1, /* Early Command Training */
 };
 
-const struct mb_lpddr4x_cfg *__weak variant_memory_params(void)
+const struct lpddr4x_cfg *__weak variant_memory_params(void)
 {
 	return &mem_config;
 }