soc/mediatek/mt8186: Add header files to support DRAM calibration

Remove emi.h because emi.h is defined in common/include/soc.
Add dramc_param.h and dramc_soc.h to prepare for implementation of
DRAM full calibration.

TEST=build pass.
BUG=b:202871018

Signed-off-by: Ryan Chuang <ryan.chuang@mediatek.corp-partner.google.com>
Change-Id: If8662ed43088ea5aa1fe6cb5b2c4bda2338c4387
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60385
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

4 files changed, 208 insertions, 15 deletions

diff --git a/src/soc/mediatek/mt8186/emi.c b/src/soc/mediatek/mt8186/emi.c
index 169b3530f6..48a7b3ef07 100644
--- a/src/soc/mediatek/mt8186/emi.c
+++ b/src/soc/mediatek/mt8186/emi.c
@@ -11,3 +11,8 @@ size_t sdram_size(void)
 {
 	return (size_t)4 * GiB;
 }
+
+void mt_set_emi(struct dramc_param *dparam)
+{
+	/* Do nothing */
+}
diff --git a/src/soc/mediatek/mt8186/include/soc/dramc_param.h b/src/soc/mediatek/mt8186/include/soc/dramc_param.h
new file mode 100644
index 0000000000..81f518f223
--- /dev/null
+++ b/src/soc/mediatek/mt8186/include/soc/dramc_param.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8186_DRAMC_PARAM_H__
+#define __SOC_MEDIATEK_MT8186_DRAMC_PARAM_H__
+
+/*
+ * NOTE: This file is shared between coreboot and dram blob. Any change in this
+ * file should be synced to the other repository.
+ */
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <soc/dramc_soc.h>
+
+#define DRAMC_PARAM_HEADER_VERSION 1
+
+enum DRAMC_PARAM_STATUS_CODES {
+	DRAMC_SUCCESS = 0,
+	DRAMC_ERR_INVALID_VERSION,
+	DRAMC_ERR_INVALID_SIZE,
+	DRAMC_ERR_INVALID_FLAGS,
+	DRAMC_ERR_RECALIBRATE,
+	DRAMC_ERR_INIT_DRAM,
+	DRAMC_ERR_COMPLEX_RW_MEM_TEST,
+	DRAMC_ERR_1ST_COMPLEX_RW_MEM_TEST,
+	DRAMC_ERR_2ND_COMPLEX_RW_MEM_TEST,
+	DRAMC_ERR_FAST_CALIBRATION,
+};
+
+enum DRAMC_PARAM_FLAGS {
+	DRAMC_FLAG_HAS_SAVED_DATA = 0x0001,
+};
+
+enum SDRAM_DVFS_FLAG {
+	DRAMC_DISABLE_DVFS,
+	DRAMC_ENABLE_DVFS,
+};
+
+enum SDRAM_DDR_TYPE {
+	DDR_TYPE_DISCRETE,
+	DDR_TYPE_EMCP,
+};
+
+enum SDRAM_DDR_GEOMETRY_TYPE {
+	DDR_TYPE_2CH_2RK_4GB_2_2,
+	DDR_TYPE_2CH_2RK_6GB_3_3,
+	DDR_TYPE_2CH_2RK_8GB_4_4_BYTE,
+	DDR_TYPE_2CH_1RK_4GB_4_0,
+	DDR_TYPE_2CH_2RK_6GB_2_4,
+	DDR_TYPE_2CH_2RK_8GB_4_4,
+};
+
+enum SDRAM_VOLTAGE_TYPE {
+	SDRAM_VOLTAGE_NVCORE_NVDRAM,
+	SDRAM_VOLTAGE_HVCORE_HVDRAM,
+	SDRAM_VOLTAGE_LVCORE_LVDRAM,
+};
+
+struct dramc_param_header {
+	u16 version;	/* DRAMC_PARAM_HEADER_VERSION, update in the coreboot */
+	u16 size;	/* size of whole dramc_param, update in the coreboot */
+	u16 status;	/* DRAMC_PARAM_STATUS_CODES, update in the dram blob */
+	u16 flags;	/* DRAMC_PARAM_FLAGS, update in the dram blob */
+	u16 config;	/* DRAMC_PARAM_CONFIG, set in coreboot */
+};
+
+struct sdram_info {
+	u32 ddr_type;			/* SDRAM_DDR_TYPE */
+	u32 ddr_geometry;		/* SDRAM_DDR_GEOMETRY_TYPE */
+};
+
+struct sdram_params {
+	u32 rank_num;
+	u16 num_dlycell_perT;
+	u16 delay_cell_timex100;
+
+	/* duty */
+	s8 duty_clk_delay[CHANNEL_MAX][RANK_MAX];
+	s8 duty_dqs_delay[CHANNEL_MAX][DQS_NUMBER_LP4];
+	s8 duty_wck_delay[CHANNEL_MAX][DQS_NUMBER_LP4];
+	s8 duty_dq_delay[CHANNEL_MAX][DQS_NUMBER_LP4];
+	s8 duty_dqm_delay[CHANNEL_MAX][DQS_NUMBER_LP4];
+
+	/* CBT */
+	u8 cbt_final_vref[CHANNEL_MAX][RANK_MAX];
+	s8 cbt_cmd_dly[CHANNEL_MAX][RANK_MAX];
+	u8 cbt_cs_dly[CHANNEL_MAX][RANK_MAX];
+	u8 cbt_ca_prebit_dly[CHANNEL_MAX][RANK_MAX][DQS_BIT_NUMBER];
+
+	/* write leveling */
+	u8 wr_level[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+
+	/* Gating */
+	u8 gating_MCK[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u8 gating_UI[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u8 gating_PI[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u8 gating_pass_count[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+
+	/* TX perbit */
+	u8 tx_window_vref[CHANNEL_MAX][RANK_MAX];
+	u16 tx_center_min[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u16 tx_center_max[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u16 tx_win_center[CHANNEL_MAX][RANK_MAX][DQ_DATA_WIDTH_LP4];
+
+	/* rx datlat */
+	u8 rx_datlat[CHANNEL_MAX][RANK_MAX];
+
+	/* RX perbit */
+	u8 rx_best_vref[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u16 rx_perbit_dqs[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u16 rx_perbit_dqm[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u16 rx_perbit_dq[CHANNEL_MAX][RANK_MAX][DQ_DATA_WIDTH_LP4];
+
+	/* TX OE */
+	u8 tx_oe_dq_mck[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+	u8 tx_oe_dq_ui[CHANNEL_MAX][RANK_MAX][DQS_NUMBER_LP4];
+};
+
+struct emi_mdl {
+	u32 cona_val;
+	u32 conh_val;
+	u32 conf_val;
+	u32 chn_cona_val;
+};
+
+struct ddr_base_info {
+	u32 config_dvfs;		/* SDRAM_DVFS_FLAG */
+	struct sdram_info sdram;
+	u32 voltage_type;		/* SDRAM_VOLTAGE_TYPE */
+	u32 support_ranks;
+	u64 rank_size[RANK_MAX];
+	struct emi_mdl emi_config;
+	DRAM_CBT_MODE_T cbt_mode[RANK_MAX];
+};
+
+struct dramc_data {
+	struct ddr_base_info ddr_info;
+	struct sdram_params freq_params[DRAM_DFS_SHU_MAX];
+};
+
+struct dramc_param {
+	struct dramc_param_header header;
+	void (*do_putc)(unsigned char c);
+	struct dramc_data dramc_datas;
+};
+
+const struct sdram_info *get_sdram_config(void);
+struct dramc_param *get_dramc_param_from_blob(void *blob);
+void dump_param_header(const void *blob);
+int initialize_dramc_param(void *blob);
+
+#endif  /* __SOC_MEDIATEK_MT8186_DRAMC_PARAM_H__ */
diff --git a/src/soc/mediatek/mt8186/include/soc/dramc_soc.h b/src/soc/mediatek/mt8186/include/soc/dramc_soc.h
new file mode 100644
index 0000000000..34e8414d47
--- /dev/null
+++ b/src/soc/mediatek/mt8186/include/soc/dramc_soc.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8186_DRAMC_SOC_H__
+#define __SOC_MEDIATEK_MT8186_DRAMC_SOC_H__
+
+typedef enum {
+	CHANNEL_A = 0,
+	CHANNEL_B,
+	CHANNEL_MAX,
+} DRAM_CHANNEL_T;
+
+typedef enum {
+	RANK_0 = 0,
+	RANK_1,
+	RANK_MAX,
+} DRAM_RANK_T;
+
+/* DRAM SHUFFLE RG type */
+typedef enum {
+	DRAM_DFS_SHUFFLE_1 = 0,
+	DRAM_DFS_SHUFFLE_2,
+	DRAM_DFS_SHUFFLE_3,
+	DRAM_DFS_SHUFFLE_4,
+	DRAM_DFS_SHUFFLE_5,
+	DRAM_DFS_SHUFFLE_6,
+	DRAM_DFS_SHUFFLE_7,
+	DRAM_DFS_SHUFFLE_8,
+	DRAM_DFS_SHUFFLE_9,
+	DRAM_DFS_SHUFFLE_10,
+	DRAM_DFS_SHUFFLE_MAX,
+} DRAM_DFS_SHUFFLE_TYPE_T;
+
+/*
+ * Internal CBT mode enum
+ * 1. Calibration flow uses vGet_Dram_CBT_Mode to
+ *    differentiate between mixed vs non-mixed LP4
+ * 2. Declared as dram_cbt_mode[RANK_MAX] internally to
+ *    store each rank's CBT mode type
+ */
+typedef enum {
+	CBT_NORMAL_MODE = 0,
+	CBT_BYTE_MODE1,
+} DRAM_CBT_MODE_T;
+
+#define DRAM_DFS_SHU_MAX	DRAM_DFS_SHUFFLE_MAX
+
+#define DQS_NUMBER_LP4		2
+#define DQS_BIT_NUMBER		8
+#define DQ_DATA_WIDTH_LP4	16
+
+#endif	/* __SOC_MEDIATEK_MT8186_DRAMC_SOC_H__ */
diff --git a/src/soc/mediatek/mt8186/include/soc/emi.h b/src/soc/mediatek/mt8186/include/soc/emi.h
deleted file mode 100644
index decfa07a2e..0000000000
--- a/src/soc/mediatek/mt8186/include/soc/emi.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-/*
- * This file is created based on MT8186 Functional Specification
- * Chapter number: 4.8
- */
-
-#ifndef SOC_MEDIATEK_MT8186_EMI_H
-#define SOC_MEDIATEK_MT8186_EMI_H
-
-#include <stddef.h>
-
-size_t sdram_size(void);
-
-#endif /* SOC_MEDIATEK_MT8186_EMI_H */