soc/mediatek/mt8188: Add DRAM full calibration support

- Use common SoC drivers for DRAM calibration support.
- Remove emi.h because sdram_size() is already declared in
  common/include/soc/emi.h.
- Add dramc_param.h and dramc_soc.h to prepare for implementation of
  DRAM full calibration.

TEST=build pass
BUG=b:233720142

Signed-off-by: Xi Chen <xixi.chen@mediatek.com>
Change-Id: I2f88d971fe861cbd09cc86c8a5a1fb531bfe78d7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66277
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>

6 files changed, 114 insertions, 15 deletions

diff --git a/src/soc/mediatek/mt8188/Kconfig b/src/soc/mediatek/mt8188/Kconfig
index ebf4f16cbb..7a3c1e6765 100644
--- a/src/soc/mediatek/mt8188/Kconfig
+++ b/src/soc/mediatek/mt8188/Kconfig
@@ -8,6 +8,7 @@ config SOC_MEDIATEK_MT8188
 	select HAVE_UART_SPECIAL
 	select SOC_MEDIATEK_COMMON
 	select FLASH_DUAL_IO_READ
+	select CACHE_MRC_SETTINGS
 
 if SOC_MEDIATEK_MT8188
 
diff --git a/src/soc/mediatek/mt8188/Makefile.inc b/src/soc/mediatek/mt8188/Makefile.inc
index d76e6f3d77..63ac435368 100644
--- a/src/soc/mediatek/mt8188/Makefile.inc
+++ b/src/soc/mediatek/mt8188/Makefile.inc
@@ -15,7 +15,11 @@ bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c
 
 romstage-y += ../common/cbmem.c
 romstage-y += ../common/clkbuf.c
+romstage-y += ../common/dram_init.c
+romstage-y += ../common/dramc_param.c
 romstage-y += emi.c
+romstage-y += ../common/memory.c
+romstage-y += ../common/memory_test.c
 romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c
 romstage-y += ../common/mt6315.c mt6315.c
 romstage-y += ../common/mt6359p.c mt6359p.c
@@ -54,6 +58,14 @@ $(foreach fw, $(call strip_quotes,$(mcu-firmware-files)), \
 	$(if $(wildcard $($(fw)-file)), $(eval cbfs-files-y += $(fw)), ) \
 )
 
+DRAM_CBFS := $(CONFIG_CBFS_PREFIX)/dram
+$(DRAM_CBFS)-file := $(MT8188_BLOB_DIR)/dram.elf
+$(DRAM_CBFS)-type := stage
+$(DRAM_CBFS)-compression := $(CBFS_PRERAM_COMPRESS_FLAG)
+ifneq ($(wildcard $($(DRAM_CBFS)-file)),)
+	cbfs-files-y += $(DRAM_CBFS)
+endif
+
 $(objcbfs)/bootblock.bin: $(objcbfs)/bootblock.raw.bin
 	./util/mtkheader/gen-bl-img.py mt8183 sf $< $@
 
diff --git a/src/soc/mediatek/mt8188/emi.c b/src/soc/mediatek/mt8188/emi.c
index 7c9ca8e157..eebc0d4bf2 100644
--- a/src/soc/mediatek/mt8188/emi.c
+++ b/src/soc/mediatek/mt8188/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/mt8188/include/soc/dramc_param.h b/src/soc/mediatek/mt8188/include/soc/dramc_param.h
new file mode 100644
index 0000000000..225872b7c3
--- /dev/null
+++ b/src/soc/mediatek/mt8188/include/soc/dramc_param.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+
+/*
+ * This file is created based on MT8188 Functional Specification
+ * Chapter number: 3.7
+ */
+
+#ifndef __SOC_MEDIATEK_MT8188_DRAMC_PARAM_H__
+#define __SOC_MEDIATEK_MT8188_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 <soc/dramc_param_common.h>
+#include <soc/dramc_soc.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#define DRAMC_PARAM_HEADER_VERSION 1
+
+struct sdram_params {
+	/* Not needed for full calibration */
+};
+
+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 validate_dramc_param(const void *blob);
+int is_valid_dramc_param(const void *blob);
+int initialize_dramc_param(void *blob);
+
+#endif  /* __SOC_MEDIATEK_MT8188_DRAMC_PARAM_H__ */
diff --git a/src/soc/mediatek/mt8188/include/soc/dramc_soc.h b/src/soc/mediatek/mt8188/include/soc/dramc_soc.h
new file mode 100644
index 0000000000..9ec8b716a5
--- /dev/null
+++ b/src/soc/mediatek/mt8188/include/soc/dramc_soc.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+
+/*
+ * This file is created based on MT8188 Functional Specification
+ * Chapter number: 3.7
+ */
+
+#ifndef __SOC_MEDIATEK_MT8188_DRAMC_SOC_H__
+#define __SOC_MEDIATEK_MT8188_DRAMC_SOC_H__
+
+#include <soc/dramc_soc_common.h>
+#include <stdint.h>
+
+typedef enum {
+	CHANNEL_A = 0,
+	CHANNEL_B,
+	CHANNEL_C,
+	CHANNEL_D,
+	CHANNEL_MAX,
+} DRAM_CHANNEL_T;
+
+typedef enum {
+	RANK_0 = 0,
+	RANK_1,
+	RANK_MAX,
+} DRAM_RANK_T;
+
+typedef enum {
+	SRAM_SHU0 = 0,
+	SRAM_SHU1,
+	SRAM_SHU2,
+	SRAM_SHU3,
+	SRAM_SHU4,
+	SRAM_SHU5,
+	SRAM_SHU6,
+	SRAM_SHU7,
+	DRAM_DFS_SRAM_MAX,
+} DRAM_DFS_SRAM_SHU_T;
+
+typedef enum {
+	DRVP = 0,
+	DRVN,
+	ODTP,
+	ODTN,
+	NTODT,
+	IMP_DRV_MAX,
+} DRAM_IMP_DRV_T;
+
+#define DRAM_DFS_SHU_MAX	DRAM_DFS_SRAM_MAX
+
+#endif	/* __SOC_MEDIATEK_MT8188_DRAMC_SOC_H__ */
diff --git a/src/soc/mediatek/mt8188/include/soc/emi.h b/src/soc/mediatek/mt8188/include/soc/emi.h
deleted file mode 100644
index cbf65c3c08..0000000000
--- a/src/soc/mediatek/mt8188/include/soc/emi.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
-
-/*
- * This file is created based on MT8188 Functional Specification
- * Chapter number: 3.7
- */
-
-#ifndef SOC_MEDIATEK_MT8188_EMI_H
-#define SOC_MEDIATEK_MT8188_EMI_H
-
-#include <stddef.h>
-
-size_t sdram_size(void);
-
-#endif /* SOC_MEDIATEK_MT8188_EMI_H */