mb/intel/tglrvp: Add initial mainboard code

This is a initial mainboard code aimed to serve as base for
further mainboard check-ins.

This is a copy patch from icelake_rvp as on commit ID:
I64db2460115f5fb35ca197b83440f8ee47470761

Below are the changes done over the copy patch:

 1. Rename "Icelake" with "Tigerlake".
 2. Replace "icelake_rvp" with "tglrvp".
 3. Rename "icl" with "tgl".
 4. Remove unwanted SPD file, add empty SPD as
    placeholder.
 5. Replace "soc/intel/icelake" with "soc/intel/tigerlake".
 6. Empty romstage_fsp_params.c, to fill it later with
    SOC specific config.
 7. Empty GPIO configuration, to be filled as per board.
 8. Change copyright year to 2019.
 9. Add board support namely BOARD_INTEL_TGLRVP_UP3
 10. Replace icl_u and icl_y variant with tglrvp variant.
 11. Remove basebord gpio.c and rely on variant override.
 12. Remove HDA verb table and config support.

Changes to follow on top of this:
 1. Add correct memory parameters, add SPDs.
 2. Clean up devicetree as per tigerlake SOC.
 3. Add GPIO support.
 4. Update chromeos.fmd to make 32MB BIOS region.
 5. clean up and make empty devicetree setting

TEST=Build tigerlake rvp board

Signed-off-by: Ravi Sarawadi <ravishankar.sarawadi@intel.com>
Change-Id: I86ada611de1cf28a1b872eea35cf41c0dc1c57f1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37868
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>

4 files changed, 216 insertions, 0 deletions

diff --git a/src/mainboard/intel/tglrvp/spd/Makefile.inc b/src/mainboard/intel/tglrvp/spd/Makefile.inc
new file mode 100644
index 0000000000..b8b059a1b7
--- /dev/null
+++ b/src/mainboard/intel/tglrvp/spd/Makefile.inc
@@ -0,0 +1,20 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2019 Intel Corporation.
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; version 2 of the License.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+
+romstage-y += spd_util.c
+
+SPD_BIN = $(obj)/spd.bin
+
+SPD_SOURCES = empty	# 0b000
diff --git a/src/mainboard/intel/tglrvp/spd/empty.spd.hex b/src/mainboard/intel/tglrvp/spd/empty.spd.hex
new file mode 100644
index 0000000000..67b46cd239
--- /dev/null
+++ b/src/mainboard/intel/tglrvp/spd/empty.spd.hex
@@ -0,0 +1,32 @@
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
diff --git a/src/mainboard/intel/tglrvp/spd/spd.h b/src/mainboard/intel/tglrvp/spd/spd.h
new file mode 100644
index 0000000000..ed8b8b6e0d
--- /dev/null
+++ b/src/mainboard/intel/tglrvp/spd/spd.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef MAINBOARD_SPD_H
+#define MAINBOARD_SPD_H
+
+#include <stdint.h>
+
+#define RCOMP_TARGET_PARAMS	0x5
+
+void mainboard_fill_dq_map_ch0(u8 *dq_map_ptr);
+void mainboard_fill_dq_map_ch1(u8 *dq_map_ptr);
+void mainboard_fill_dqs_map_ch0(u8 *dqs_map_ptr);
+void mainboard_fill_dqs_map_ch1(u8 *dqs_map_ptr);
+void mainboard_fill_rcomp_res_data(u16 *rcomp_ptr);
+void mainboard_fill_rcomp_strength_data(u16 *rcomp_strength_ptr);
+#endif
diff --git a/src/mainboard/intel/tglrvp/spd/spd_util.c b/src/mainboard/intel/tglrvp/spd/spd_util.c
new file mode 100644
index 0000000000..4bfd964e30
--- /dev/null
+++ b/src/mainboard/intel/tglrvp/spd/spd_util.c
@@ -0,0 +1,135 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2019 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <arch/cpu.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "../board_id.h"
+#include "spd.h"
+
+enum tgl_dimm_type {
+	tgl_u_ddr4 = 0,
+	tgl_u_lpddr4 = 1,
+	tgl_u_lpddr4_type_3 = 4,
+	tgl_y_lpddr4 = 6
+};
+
+static uint8_t get_spd_index(void)
+{
+	uint8_t spd_index = (get_board_id() & 0x1F) & 0x7;
+
+	return spd_index;
+}
+
+void mainboard_fill_dq_map_ch0(u8 *dq_map_ptr)
+{
+	/* DQ byte map Ch0 */
+	const u8 dq_map[12] = {
+		0x0F, 0xF0, 0x0F, 0xF0, 0xFF, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+	memcpy(dq_map_ptr, dq_map, sizeof(dq_map));
+}
+
+void mainboard_fill_dq_map_ch1(u8 *dq_map_ptr)
+{
+	const u8 dq_map[12] = {
+		0x0F, 0xF0, 0x0F, 0xF0, 0xFF, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+	memcpy(dq_map_ptr, dq_map, sizeof(dq_map));
+}
+
+void mainboard_fill_dqs_map_ch0(u8 *dqs_map_ptr)
+{
+	/* DQS CPU<>DRAM map Ch0 */
+	const u8 dqs_map_u_ddr[8] = { 2, 0, 1, 3, 6, 4, 7, 5 };
+	const u8 dqs_map_u_lpddr[8] = { 2, 3, 0, 1, 7, 6, 4, 5 };
+	const u8 dqs_map_u_lpddr_type_3[8] = { 2, 3, 1, 0, 7, 6, 4, 5 };
+	const u8 dqs_map_y_lpddr[8] = { 0, 1, 2, 3, 4, 5, 6, 7 };
+
+	switch (get_spd_index()) {
+	case tgl_u_ddr4:
+		memcpy(dqs_map_ptr, dqs_map_u_ddr, sizeof(dqs_map_u_ddr));
+		break;
+	case tgl_u_lpddr4:
+		memcpy(dqs_map_ptr, dqs_map_u_lpddr, sizeof(dqs_map_u_lpddr));
+		break;
+	case tgl_u_lpddr4_type_3:
+		memcpy(dqs_map_ptr, dqs_map_u_lpddr_type_3,
+				 sizeof(dqs_map_u_lpddr_type_3));
+		break;
+	case tgl_y_lpddr4:
+		memcpy(dqs_map_ptr, dqs_map_y_lpddr, sizeof(dqs_map_y_lpddr));
+		break;
+	default:
+		break;
+	}
+}
+
+void mainboard_fill_dqs_map_ch1(u8 *dqs_map_ptr)
+{
+	/* DQS CPU<>DRAM map Ch1 */
+	const u8 dqs_map_u_ddr[8] = { 1, 3, 2, 0, 5, 7, 6, 4 };
+	const u8 dqs_map_u_lpddr[8] = { 1, 0, 3, 2, 5, 4, 7, 6  };
+	const u8 dqs_map_y_lpddr[8] = { 0, 1, 2, 3, 5, 4, 7, 6 };
+
+	switch (get_spd_index()) {
+	case tgl_u_ddr4:
+		memcpy(dqs_map_ptr, dqs_map_u_ddr, sizeof(dqs_map_u_ddr));
+		break;
+	case tgl_u_lpddr4:
+	case tgl_u_lpddr4_type_3:
+		memcpy(dqs_map_ptr, dqs_map_u_lpddr, sizeof(dqs_map_u_lpddr));
+		break;
+	case tgl_y_lpddr4:
+		memcpy(dqs_map_ptr, dqs_map_y_lpddr, sizeof(dqs_map_y_lpddr));
+		break;
+	default:
+		break;
+	}
+}
+
+void mainboard_fill_rcomp_res_data(u16 *rcomp_ptr)
+{
+	/* Rcomp resistor */
+	const u16 RcompResistor[3] = { 100, 100, 100 };
+	memcpy(rcomp_ptr, RcompResistor, sizeof(RcompResistor));
+}
+
+void mainboard_fill_rcomp_strength_data(u16 *rcomp_strength_ptr)
+{
+	/* Rcomp target */
+	static const u16 RcompTarget_DDR4[RCOMP_TARGET_PARAMS] = {
+			100, 33, 32, 33, 28 };
+	static const u16 RcompTarget_LPDDR4_Ax[RCOMP_TARGET_PARAMS] = {
+			80, 40, 40, 40, 30 };
+
+	switch (get_spd_index()) {
+	case tgl_u_ddr4:
+		memcpy(rcomp_strength_ptr, RcompTarget_DDR4,
+				sizeof(RcompTarget_DDR4));
+		break;
+	case tgl_y_lpddr4:
+	case tgl_u_lpddr4:
+	case tgl_u_lpddr4_type_3:
+		memcpy(rcomp_strength_ptr, RcompTarget_LPDDR4_Ax,
+				sizeof(RcompTarget_LPDDR4_Ax));
+		break;
+	default:
+		break;
+	}
+}