[coreboot-gerrit] Change in coreboot[master]: src/mediatek/mt8186: Get dram size from ddr_info rank_size array

[Xixi Chen (Code Review)]

Attention is currently required from: Hung-Te Lin.
Xixi Chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/62065 )

Change subject: src/mediatek/mt8186: Get dram size from ddr_info rank_size array
......................................................................

src/mediatek/mt8186: Get dram size from ddr_info rank_size array

Originally, dram size is set to 4GB by default. To support different
dram size, should update from emi rank_size array.

Signed-off-by: Xi Chen 
Change-Id: I017e9d1a2d6e26f1fc21b67b5962dfb5c6ade8a5
---
M src/soc/mediatek/common/memory.c
M src/soc/mediatek/mt8186/emi.c
2 files changed, 13 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/62065/1

diff --git a/src/soc/mediatek/common/memory.c b/src/soc/mediatek/common/memory.c
index 3ca3611..4f9410b 100644
--- a/src/soc/mediatek/common/memory.c
+++ b/src/soc/mediatek/common/memory.c
@@ -23,6 +23,9 @@
 const char *get_dram_geometry_str(u32 ddr_geometry);
 const char *get_dram_type_str(u32 ddr_type);

+/* dram info which is passed to CBMEM */
+const struct ddr_base_info  *current_ddr_info;
+
 static int mt_mem_test(const struct dramc_data *dparam)
 {
    if (CONFIG(MEMORY_TEST)) {
@@ -262,4 +265,6 @@
    static struct dramc_param dramc_parameter;
    mt_mem_init(&dramc_parameter);
    mtk_mmu_after_dram();
+
+	current_ddr_info = (const struct ddr_base_info  *)&dramc_parameter.dramc_datas.ddr_info;
 }
diff --git a/src/soc/mediatek/mt8186/emi.c b/src/soc/mediatek/mt8186/emi.c
index 48a7b3e..fc1ce1f 100644
--- a/src/soc/mediatek/mt8186/emi.c
+++ b/src/soc/mediatek/mt8186/emi.c
@@ -7,9 +7,16 @@

#include <soc/emi.h>

+extern const struct ddr_base_info *ddr_info;
 size_t sdram_size(void)
 {
-	return (size_t)4 * GiB;
+	size_t size = 0;
+	int i;
+
+	for (i = 0; i < RANK_MAX; ++i)
+		size += ddr_info->rank_size[i];
+
+	return size;
 }

void mt_set_emi(struct dramc_param *dparam)