[coreboot-gerrit] Change in coreboot[master]: soc/mediatek/mt8183: Add get dram type API at ATF

[huayang duan (Code Review)]

Hello Duan huayang,

I'd like you to do a code review. Please visit

https://review.coreboot.org/c/coreboot/+/39097

to review the following change.

Change subject: soc/mediatek/mt8183: Add get dram type API at ATF
......................................................................

soc/mediatek/mt8183: Add get dram type API at ATF

DVFS module need know the dram type at ATF for loading the correct spm binary.

BRANCH=kukui
BUG=none
TEST=bootup pass

Change-Id: I20afc00c4c671abcbb6f36eb8e3e364529e9389c
Signed-off-by: Huayang Duan 
---
M src/mainboard/google/kukui/mainboard.c
1 file changed, 11 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/97/39097/1

diff --git a/src/mainboard/google/kukui/mainboard.c b/src/mainboard/google/kukui/mainboard.c
index 844496d..da39c1c 100644
--- a/src/mainboard/google/kukui/mainboard.c
+++ b/src/mainboard/google/kukui/mainboard.c
@@ -184,8 +184,19 @@
    	.gpio = { .polarity = ARM_TF_GPIO_LEVEL_HIGH },
    };

+	/* use .polarity to save dram type value */
+	static struct bl_aux_param_gpio param_dram_type = {
+		.h = { .type = BL_AUX_PARAM_MTK_DRAM_TYPE },
+#if CONFIG(MT8183_DRAM_EMCP)
+		.gpio = { .polarity = DRAMC_CONFIG_EMCP },
+#else
+		.gpio = { .polarity = 0 },
+#endif
+	};
+
    param_reset.gpio.index = GPIO_RESET.id;
    register_bl31_aux_param(&param_reset.h);
+	register_bl31_aux_param(&param_dram_type.h);
 }

static void mainboard_init(struct device *dev)