[coreboot-gerrit] Change in coreboot[master]: soc/mediatek/mt8186: add early initialization for eMMC

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin.
Rex-BC Chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/59294 )

Change subject: soc/mediatek/mt8186: add early initialization for eMMC
......................................................................

soc/mediatek/mt8186: add early initialization for eMMC

Some eMMCs need 80+ms for CMD1 to complete. And the payload may need to
access eMMC in the very early stage (for example, depthcharge needs it
20ms after started) so we have to start initialization in coreboot.

TEST=boot kernel from eMMC ok
BUG=b:202871018

Signed-off-by: Rex-BC Chen 
Change-Id: I3bc06b1fc506b1d6f54f7f456117d22477a87e29
---
M src/soc/mediatek/mt8186/msdc.c
1 file changed, 2 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/59294/1

diff --git a/src/soc/mediatek/mt8186/msdc.c b/src/soc/mediatek/mt8186/msdc.c
index f1c2004..7e5541a 100644
--- a/src/soc/mediatek/mt8186/msdc.c
+++ b/src/soc/mediatek/mt8186/msdc.c
@@ -58,6 +58,8 @@

/* set eMMC cmd/dat/clk pins driving to 8mA */
    SET32_BITFIELDS(gpio_base, MSDC0_DRV, MSDC0_DRV_VALUE);
+
+	mtk_emmc_early_init((void *)MSDC0_BASE, (void *)MSDC0_TOP_BASE);
 }

void mtk_msdc_configure_sdcard(void)